diff --git a/homeassistant/components/abode/alarm_control_panel.py b/homeassistant/components/abode/alarm_control_panel.py
index 838d09b73..d7426e041 100644
--- a/homeassistant/components/abode/alarm_control_panel.py
+++ b/homeassistant/components/abode/alarm_control_panel.py
@@ -2,12 +2,12 @@
 import logging
 
 import homeassistant.components.alarm_control_panel as alarm
-from homeassistant.components.abode import ATTRIBUTION, AbodeDevice
-from homeassistant.components.abode import DOMAIN as ABODE_DOMAIN
 from homeassistant.const import (
     ATTR_ATTRIBUTION, STATE_ALARM_ARMED_AWAY, STATE_ALARM_ARMED_HOME,
     STATE_ALARM_DISARMED)
 
+from . import ATTRIBUTION, DOMAIN as ABODE_DOMAIN, AbodeDevice
+
 DEPENDENCIES = ['abode']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/abode/binary_sensor.py b/homeassistant/components/abode/binary_sensor.py
index 47baef1d7..874723420 100644
--- a/homeassistant/components/abode/binary_sensor.py
+++ b/homeassistant/components/abode/binary_sensor.py
@@ -1,10 +1,10 @@
 """Support for Abode Security System binary sensors."""
 import logging
 
-from homeassistant.components.abode import (AbodeDevice, AbodeAutomation,
-                                            DOMAIN as ABODE_DOMAIN)
 from homeassistant.components.binary_sensor import BinarySensorDevice
 
+from . import DOMAIN as ABODE_DOMAIN, AbodeAutomation, AbodeDevice
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['abode']
diff --git a/homeassistant/components/abode/camera.py b/homeassistant/components/abode/camera.py
index 99613d07c..d37644ecc 100644
--- a/homeassistant/components/abode/camera.py
+++ b/homeassistant/components/abode/camera.py
@@ -1,13 +1,14 @@
 """Support for Abode Security System cameras."""
+from datetime import timedelta
 import logging
 
-from datetime import timedelta
 import requests
 
-from homeassistant.components.abode import AbodeDevice, DOMAIN as ABODE_DOMAIN
 from homeassistant.components.camera import Camera
 from homeassistant.util import Throttle
 
+from . import DOMAIN as ABODE_DOMAIN, AbodeDevice
+
 DEPENDENCIES = ['abode']
 
 MIN_TIME_BETWEEN_UPDATES = timedelta(seconds=90)
diff --git a/homeassistant/components/abode/cover.py b/homeassistant/components/abode/cover.py
index 03d6219eb..c40159164 100644
--- a/homeassistant/components/abode/cover.py
+++ b/homeassistant/components/abode/cover.py
@@ -1,9 +1,10 @@
 """Support for Abode Security System covers."""
 import logging
 
-from homeassistant.components.abode import AbodeDevice, DOMAIN as ABODE_DOMAIN
 from homeassistant.components.cover import CoverDevice
 
+from . import DOMAIN as ABODE_DOMAIN, AbodeDevice
+
 DEPENDENCIES = ['abode']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/abode/light.py b/homeassistant/components/abode/light.py
index aabf5fbcc..9e88acce4 100644
--- a/homeassistant/components/abode/light.py
+++ b/homeassistant/components/abode/light.py
@@ -1,13 +1,14 @@
 """Support for Abode Security System lights."""
 import logging
 from math import ceil
-from homeassistant.components.abode import AbodeDevice, DOMAIN as ABODE_DOMAIN
+
 from homeassistant.components.light import (
-    ATTR_BRIGHTNESS, ATTR_HS_COLOR, ATTR_COLOR_TEMP,
-    SUPPORT_BRIGHTNESS, SUPPORT_COLOR, SUPPORT_COLOR_TEMP, Light)
+    ATTR_BRIGHTNESS, ATTR_COLOR_TEMP, ATTR_HS_COLOR, SUPPORT_BRIGHTNESS,
+    SUPPORT_COLOR, SUPPORT_COLOR_TEMP, Light)
 from homeassistant.util.color import (
     color_temperature_kelvin_to_mired, color_temperature_mired_to_kelvin)
 
+from . import DOMAIN as ABODE_DOMAIN, AbodeDevice
 
 DEPENDENCIES = ['abode']
 
diff --git a/homeassistant/components/abode/lock.py b/homeassistant/components/abode/lock.py
index ce6634268..0f568a4ac 100644
--- a/homeassistant/components/abode/lock.py
+++ b/homeassistant/components/abode/lock.py
@@ -1,9 +1,10 @@
 """Support for Abode Security System locks."""
 import logging
 
-from homeassistant.components.abode import AbodeDevice, DOMAIN as ABODE_DOMAIN
 from homeassistant.components.lock import LockDevice
 
+from . import DOMAIN as ABODE_DOMAIN, AbodeDevice
+
 DEPENDENCIES = ['abode']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/abode/sensor.py b/homeassistant/components/abode/sensor.py
index fa6cb9323..ef6941c76 100644
--- a/homeassistant/components/abode/sensor.py
+++ b/homeassistant/components/abode/sensor.py
@@ -1,10 +1,11 @@
 """Support for Abode Security System sensors."""
 import logging
 
-from homeassistant.components.abode import AbodeDevice, DOMAIN as ABODE_DOMAIN
 from homeassistant.const import (
     DEVICE_CLASS_HUMIDITY, DEVICE_CLASS_ILLUMINANCE, DEVICE_CLASS_TEMPERATURE)
 
+from . import DOMAIN as ABODE_DOMAIN, AbodeDevice
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['abode']
diff --git a/homeassistant/components/abode/switch.py b/homeassistant/components/abode/switch.py
index d5303a27c..3e3ce0318 100644
--- a/homeassistant/components/abode/switch.py
+++ b/homeassistant/components/abode/switch.py
@@ -1,10 +1,10 @@
 """Support for Abode Security System switches."""
 import logging
 
-from homeassistant.components.abode import (AbodeDevice, AbodeAutomation,
-                                            DOMAIN as ABODE_DOMAIN)
 from homeassistant.components.switch import SwitchDevice
 
+from . import DOMAIN as ABODE_DOMAIN, AbodeAutomation, AbodeDevice
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['abode']
diff --git a/homeassistant/components/ads/binary_sensor.py b/homeassistant/components/ads/binary_sensor.py
index 6771e99cd..3b935156d 100644
--- a/homeassistant/components/ads/binary_sensor.py
+++ b/homeassistant/components/ads/binary_sensor.py
@@ -3,12 +3,13 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.components.ads import CONF_ADS_VAR, DATA_ADS
 from homeassistant.components.binary_sensor import (
     DEVICE_CLASSES_SCHEMA, PLATFORM_SCHEMA, BinarySensorDevice)
 from homeassistant.const import CONF_DEVICE_CLASS, CONF_NAME
 import homeassistant.helpers.config_validation as cv
 
+from . import CONF_ADS_VAR, DATA_ADS
+
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'ADS binary sensor'
diff --git a/homeassistant/components/ads/light.py b/homeassistant/components/ads/light.py
index e5299821e..c61fd8136 100644
--- a/homeassistant/components/ads/light.py
+++ b/homeassistant/components/ads/light.py
@@ -1,13 +1,15 @@
 """Support for ADS light sources."""
 import logging
+
 import voluptuous as vol
-from homeassistant.components.light import Light, ATTR_BRIGHTNESS, \
-    SUPPORT_BRIGHTNESS, PLATFORM_SCHEMA
+
+from homeassistant.components.light import (
+    ATTR_BRIGHTNESS, PLATFORM_SCHEMA, SUPPORT_BRIGHTNESS, Light)
 from homeassistant.const import CONF_NAME
-from homeassistant.components.ads import DATA_ADS, CONF_ADS_VAR, \
-    CONF_ADS_VAR_BRIGHTNESS
 import homeassistant.helpers.config_validation as cv
 
+from . import CONF_ADS_VAR, CONF_ADS_VAR_BRIGHTNESS, DATA_ADS
+
 _LOGGER = logging.getLogger(__name__)
 DEPENDENCIES = ['ads']
 DEFAULT_NAME = 'ADS Light'
diff --git a/homeassistant/components/ads/sensor.py b/homeassistant/components/ads/sensor.py
index 4db6ca7db..118a669a7 100644
--- a/homeassistant/components/ads/sensor.py
+++ b/homeassistant/components/ads/sensor.py
@@ -4,13 +4,13 @@ import logging
 import voluptuous as vol
 
 from homeassistant.components import ads
-from homeassistant.components.ads import (
-    CONF_ADS_FACTOR, CONF_ADS_TYPE, CONF_ADS_VAR)
 from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import CONF_NAME, CONF_UNIT_OF_MEASUREMENT
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
+from . import CONF_ADS_FACTOR, CONF_ADS_TYPE, CONF_ADS_VAR
+
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = "ADS sensor"
diff --git a/homeassistant/components/ads/switch.py b/homeassistant/components/ads/switch.py
index e3aee023f..094b45523 100644
--- a/homeassistant/components/ads/switch.py
+++ b/homeassistant/components/ads/switch.py
@@ -3,12 +3,13 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.components.ads import CONF_ADS_VAR, DATA_ADS
 from homeassistant.components.switch import PLATFORM_SCHEMA
 from homeassistant.const import CONF_NAME
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import ToggleEntity
 
+from . import CONF_ADS_VAR, DATA_ADS
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['ads']
diff --git a/homeassistant/components/alarmdecoder/alarm_control_panel.py b/homeassistant/components/alarmdecoder/alarm_control_panel.py
index cf26e42b0..d7eced933 100644
--- a/homeassistant/components/alarmdecoder/alarm_control_panel.py
+++ b/homeassistant/components/alarmdecoder/alarm_control_panel.py
@@ -4,12 +4,13 @@ import logging
 import voluptuous as vol
 
 import homeassistant.components.alarm_control_panel as alarm
-from homeassistant.components.alarmdecoder import DATA_AD, SIGNAL_PANEL_MESSAGE
 from homeassistant.const import (
     ATTR_CODE, STATE_ALARM_ARMED_AWAY, STATE_ALARM_ARMED_HOME,
     STATE_ALARM_DISARMED, STATE_ALARM_TRIGGERED)
 import homeassistant.helpers.config_validation as cv
 
+from . import DATA_AD, SIGNAL_PANEL_MESSAGE
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['alarmdecoder']
diff --git a/homeassistant/components/alarmdecoder/binary_sensor.py b/homeassistant/components/alarmdecoder/binary_sensor.py
index c5af6ea79..09e63b4d6 100644
--- a/homeassistant/components/alarmdecoder/binary_sensor.py
+++ b/homeassistant/components/alarmdecoder/binary_sensor.py
@@ -2,11 +2,11 @@
 import logging
 
 from homeassistant.components.binary_sensor import BinarySensorDevice
-from homeassistant.components.alarmdecoder import (
-    ZONE_SCHEMA, CONF_ZONES, CONF_ZONE_NAME, CONF_ZONE_TYPE,
-    CONF_ZONE_RFID, CONF_ZONE_LOOP, SIGNAL_ZONE_FAULT, SIGNAL_ZONE_RESTORE,
-    SIGNAL_RFX_MESSAGE, SIGNAL_REL_MESSAGE, CONF_RELAY_ADDR,
-    CONF_RELAY_CHAN)
+
+from . import (
+    CONF_RELAY_ADDR, CONF_RELAY_CHAN, CONF_ZONE_LOOP, CONF_ZONE_NAME,
+    CONF_ZONE_RFID, CONF_ZONE_TYPE, CONF_ZONES, SIGNAL_REL_MESSAGE,
+    SIGNAL_RFX_MESSAGE, SIGNAL_ZONE_FAULT, SIGNAL_ZONE_RESTORE, ZONE_SCHEMA)
 
 DEPENDENCIES = ['alarmdecoder']
 
diff --git a/homeassistant/components/alarmdecoder/sensor.py b/homeassistant/components/alarmdecoder/sensor.py
index b2f697ea8..88371dad1 100644
--- a/homeassistant/components/alarmdecoder/sensor.py
+++ b/homeassistant/components/alarmdecoder/sensor.py
@@ -2,7 +2,8 @@
 import logging
 
 from homeassistant.helpers.entity import Entity
-from homeassistant.components.alarmdecoder import (SIGNAL_PANEL_MESSAGE)
+
+from . import SIGNAL_PANEL_MESSAGE
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/ambient_station/binary_sensor.py b/homeassistant/components/ambient_station/binary_sensor.py
index 2defa0328..04a389016 100644
--- a/homeassistant/components/ambient_station/binary_sensor.py
+++ b/homeassistant/components/ambient_station/binary_sensor.py
@@ -1,13 +1,13 @@
 """Support for Ambient Weather Station binary sensors."""
 import logging
 
-from homeassistant.components.ambient_station import (
-    SENSOR_TYPES, TYPE_BATT1, TYPE_BATT10, TYPE_BATT2, TYPE_BATT3, TYPE_BATT4,
-    TYPE_BATT5, TYPE_BATT6, TYPE_BATT7, TYPE_BATT8, TYPE_BATT9, TYPE_BATTOUT,
-    AmbientWeatherEntity)
 from homeassistant.components.binary_sensor import BinarySensorDevice
 from homeassistant.const import ATTR_NAME
 
+from . import (
+    SENSOR_TYPES, TYPE_BATT1, TYPE_BATT2, TYPE_BATT3, TYPE_BATT4, TYPE_BATT5,
+    TYPE_BATT6, TYPE_BATT7, TYPE_BATT8, TYPE_BATT9, TYPE_BATT10, TYPE_BATTOUT,
+    AmbientWeatherEntity)
 from .const import ATTR_LAST_DATA, DATA_CLIENT, DOMAIN, TYPE_BINARY_SENSOR
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/ambient_station/sensor.py b/homeassistant/components/ambient_station/sensor.py
index fa3222bf0..b394dc558 100644
--- a/homeassistant/components/ambient_station/sensor.py
+++ b/homeassistant/components/ambient_station/sensor.py
@@ -1,10 +1,9 @@
 """Support for Ambient Weather Station sensors."""
 import logging
 
-from homeassistant.components.ambient_station import (
-    SENSOR_TYPES, AmbientWeatherEntity)
 from homeassistant.const import ATTR_NAME
 
+from . import SENSOR_TYPES, AmbientWeatherEntity
 from .const import ATTR_LAST_DATA, DATA_CLIENT, DOMAIN, TYPE_SENSOR
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/amcrest/camera.py b/homeassistant/components/amcrest/camera.py
index 32885c2a8..7ba3ea04b 100644
--- a/homeassistant/components/amcrest/camera.py
+++ b/homeassistant/components/amcrest/camera.py
@@ -2,15 +2,14 @@
 import asyncio
 import logging
 
-from homeassistant.components.amcrest import (
-    DATA_AMCREST, STREAM_SOURCE_LIST, TIMEOUT)
 from homeassistant.components.camera import Camera
 from homeassistant.components.ffmpeg import DATA_FFMPEG
 from homeassistant.const import CONF_NAME
 from homeassistant.helpers.aiohttp_client import (
-    async_get_clientsession, async_aiohttp_proxy_web,
-    async_aiohttp_proxy_stream)
+    async_aiohttp_proxy_stream, async_aiohttp_proxy_web,
+    async_get_clientsession)
 
+from . import DATA_AMCREST, STREAM_SOURCE_LIST, TIMEOUT
 
 DEPENDENCIES = ['amcrest', 'ffmpeg']
 
diff --git a/homeassistant/components/amcrest/sensor.py b/homeassistant/components/amcrest/sensor.py
index 4869dfffa..c721914c7 100644
--- a/homeassistant/components/amcrest/sensor.py
+++ b/homeassistant/components/amcrest/sensor.py
@@ -2,9 +2,10 @@
 from datetime import timedelta
 import logging
 
-from homeassistant.components.amcrest import DATA_AMCREST, SENSORS
-from homeassistant.helpers.entity import Entity
 from homeassistant.const import CONF_NAME, CONF_SENSORS
+from homeassistant.helpers.entity import Entity
+
+from . import DATA_AMCREST, SENSORS
 
 DEPENDENCIES = ['amcrest']
 
diff --git a/homeassistant/components/amcrest/switch.py b/homeassistant/components/amcrest/switch.py
index 3c1f03f01..0bbd290b3 100644
--- a/homeassistant/components/amcrest/switch.py
+++ b/homeassistant/components/amcrest/switch.py
@@ -1,11 +1,11 @@
 """Support for toggling Amcrest IP camera settings."""
 import logging
 
-from homeassistant.components.amcrest import DATA_AMCREST, SWITCHES
-from homeassistant.const import (
-    CONF_NAME, CONF_SWITCHES, STATE_OFF, STATE_ON)
+from homeassistant.const import CONF_NAME, CONF_SWITCHES, STATE_OFF, STATE_ON
 from homeassistant.helpers.entity import ToggleEntity
 
+from . import DATA_AMCREST, SWITCHES
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['amcrest']
diff --git a/homeassistant/components/android_ip_webcam/binary_sensor.py b/homeassistant/components/android_ip_webcam/binary_sensor.py
index e33e22f37..c058c44c5 100644
--- a/homeassistant/components/android_ip_webcam/binary_sensor.py
+++ b/homeassistant/components/android_ip_webcam/binary_sensor.py
@@ -1,7 +1,7 @@
 """Support for Android IP Webcam binary sensors."""
 from homeassistant.components.binary_sensor import BinarySensorDevice
-from homeassistant.components.android_ip_webcam import (
-    KEY_MAP, DATA_IP_WEBCAM, AndroidIPCamEntity, CONF_HOST, CONF_NAME)
+
+from . import CONF_HOST, CONF_NAME, DATA_IP_WEBCAM, KEY_MAP, AndroidIPCamEntity
 
 DEPENDENCIES = ['android_ip_webcam']
 
diff --git a/homeassistant/components/android_ip_webcam/sensor.py b/homeassistant/components/android_ip_webcam/sensor.py
index e98ce7951..4d29493d6 100644
--- a/homeassistant/components/android_ip_webcam/sensor.py
+++ b/homeassistant/components/android_ip_webcam/sensor.py
@@ -1,9 +1,10 @@
 """Support for Android IP Webcam sensors."""
-from homeassistant.components.android_ip_webcam import (
-    KEY_MAP, ICON_MAP, DATA_IP_WEBCAM, AndroidIPCamEntity, CONF_HOST,
-    CONF_NAME, CONF_SENSORS)
 from homeassistant.helpers.icon import icon_for_battery_level
 
+from . import (
+    CONF_HOST, CONF_NAME, CONF_SENSORS, DATA_IP_WEBCAM, ICON_MAP, KEY_MAP,
+    AndroidIPCamEntity)
+
 DEPENDENCIES = ['android_ip_webcam']
 
 
diff --git a/homeassistant/components/android_ip_webcam/switch.py b/homeassistant/components/android_ip_webcam/switch.py
index 73a94acbc..0304c5747 100644
--- a/homeassistant/components/android_ip_webcam/switch.py
+++ b/homeassistant/components/android_ip_webcam/switch.py
@@ -1,8 +1,9 @@
 """Support for Android IP Webcam settings."""
 from homeassistant.components.switch import SwitchDevice
-from homeassistant.components.android_ip_webcam import (
-    KEY_MAP, ICON_MAP, DATA_IP_WEBCAM, AndroidIPCamEntity, CONF_HOST,
-    CONF_NAME, CONF_SWITCHES)
+
+from . import (
+    CONF_HOST, CONF_NAME, CONF_SWITCHES, DATA_IP_WEBCAM, ICON_MAP, KEY_MAP,
+    AndroidIPCamEntity)
 
 DEPENDENCIES = ['android_ip_webcam']
 
diff --git a/homeassistant/components/apple_tv/media_player.py b/homeassistant/components/apple_tv/media_player.py
index 03ac5bd25..e00ce6ed1 100644
--- a/homeassistant/components/apple_tv/media_player.py
+++ b/homeassistant/components/apple_tv/media_player.py
@@ -1,8 +1,6 @@
 """Support for Apple TV media player."""
 import logging
 
-from homeassistant.components.apple_tv import (
-    ATTR_ATV, ATTR_POWER, DATA_APPLE_TV, DATA_ENTITIES)
 from homeassistant.components.media_player import MediaPlayerDevice
 from homeassistant.components.media_player.const import (
     MEDIA_TYPE_MUSIC, MEDIA_TYPE_TVSHOW, MEDIA_TYPE_VIDEO, SUPPORT_NEXT_TRACK,
@@ -14,6 +12,8 @@ from homeassistant.const import (
 from homeassistant.core import callback
 import homeassistant.util.dt as dt_util
 
+from . import ATTR_ATV, ATTR_POWER, DATA_APPLE_TV, DATA_ENTITIES
+
 DEPENDENCIES = ['apple_tv']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/apple_tv/remote.py b/homeassistant/components/apple_tv/remote.py
index 2d80ded68..25b500ac0 100644
--- a/homeassistant/components/apple_tv/remote.py
+++ b/homeassistant/components/apple_tv/remote.py
@@ -1,8 +1,8 @@
 """Remote control support for Apple TV."""
-from homeassistant.components.apple_tv import (
-    ATTR_ATV, ATTR_POWER, DATA_APPLE_TV)
 from homeassistant.components import remote
-from homeassistant.const import (CONF_NAME, CONF_HOST)
+from homeassistant.const import CONF_HOST, CONF_NAME
+
+from . import ATTR_ATV, ATTR_POWER, DATA_APPLE_TV
 
 DEPENDENCIES = ['apple_tv']
 
diff --git a/homeassistant/components/aqualogic/sensor.py b/homeassistant/components/aqualogic/sensor.py
index 9e061ba91..dc06a2127 100644
--- a/homeassistant/components/aqualogic/sensor.py
+++ b/homeassistant/components/aqualogic/sensor.py
@@ -4,12 +4,13 @@ import logging
 import voluptuous as vol
 
 from homeassistant.components.sensor import PLATFORM_SCHEMA
-from homeassistant.const import (CONF_MONITORED_CONDITIONS,
-                                 TEMP_CELSIUS, TEMP_FAHRENHEIT)
+from homeassistant.const import (
+    CONF_MONITORED_CONDITIONS, TEMP_CELSIUS, TEMP_FAHRENHEIT)
 from homeassistant.core import callback
-from homeassistant.helpers.entity import Entity
-import homeassistant.components.aqualogic as aq
 import homeassistant.helpers.config_validation as cv
+from homeassistant.helpers.entity import Entity
+
+from . import DOMAIN, UPDATE_TOPIC
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -46,7 +47,7 @@ async def async_setup_platform(
     """Set up the sensor platform."""
     sensors = []
 
-    processor = hass.data[aq.DOMAIN]
+    processor = hass.data[DOMAIN]
     for sensor_type in config.get(CONF_MONITORED_CONDITIONS):
         sensors.append(AquaLogicSensor(processor, sensor_type))
 
@@ -95,7 +96,7 @@ class AquaLogicSensor(Entity):
     async def async_added_to_hass(self):
         """Register callbacks."""
         self.hass.helpers.dispatcher.async_dispatcher_connect(
-            aq.UPDATE_TOPIC, self.async_update_callback)
+            UPDATE_TOPIC, self.async_update_callback)
 
     @callback
     def async_update_callback(self):
diff --git a/homeassistant/components/aqualogic/switch.py b/homeassistant/components/aqualogic/switch.py
index ee040fa1b..21e573f94 100644
--- a/homeassistant/components/aqualogic/switch.py
+++ b/homeassistant/components/aqualogic/switch.py
@@ -3,11 +3,12 @@ import logging
 
 import voluptuous as vol
 
-import homeassistant.helpers.config_validation as cv
+from homeassistant.components.switch import PLATFORM_SCHEMA, SwitchDevice
+from homeassistant.const import CONF_MONITORED_CONDITIONS
 from homeassistant.core import callback
-import homeassistant.components.aqualogic as aq
-from homeassistant.components.switch import SwitchDevice, PLATFORM_SCHEMA
-from homeassistant.const import (CONF_MONITORED_CONDITIONS)
+import homeassistant.helpers.config_validation as cv
+
+from . import DOMAIN, UPDATE_TOPIC
 
 DEPENDENCIES = ['aqualogic']
 
@@ -37,7 +38,7 @@ async def async_setup_platform(
     """Set up the switch platform."""
     switches = []
 
-    processor = hass.data[aq.DOMAIN]
+    processor = hass.data[DOMAIN]
     for switch_type in config.get(CONF_MONITORED_CONDITIONS):
         switches.append(AquaLogicSwitch(processor, switch_type))
 
@@ -101,7 +102,7 @@ class AquaLogicSwitch(SwitchDevice):
     async def async_added_to_hass(self):
         """Register callbacks."""
         self.hass.helpers.dispatcher.async_dispatcher_connect(
-            aq.UPDATE_TOPIC, self.async_update_callback)
+            UPDATE_TOPIC, self.async_update_callback)
 
     @callback
     def async_update_callback(self):
diff --git a/homeassistant/components/arlo/alarm_control_panel.py b/homeassistant/components/arlo/alarm_control_panel.py
index 931dfa1b1..3557ed125 100644
--- a/homeassistant/components/arlo/alarm_control_panel.py
+++ b/homeassistant/components/arlo/alarm_control_panel.py
@@ -3,16 +3,16 @@ import logging
 
 import voluptuous as vol
 
-import homeassistant.helpers.config_validation as cv
-from homeassistant.core import callback
-from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.components.alarm_control_panel import (
-    AlarmControlPanel, PLATFORM_SCHEMA)
-from homeassistant.components.arlo import (
-    DATA_ARLO, ATTRIBUTION, SIGNAL_UPDATE_ARLO)
+    PLATFORM_SCHEMA, AlarmControlPanel)
 from homeassistant.const import (
     ATTR_ATTRIBUTION, STATE_ALARM_ARMED_AWAY, STATE_ALARM_ARMED_HOME,
-    STATE_ALARM_DISARMED, STATE_ALARM_ARMED_NIGHT)
+    STATE_ALARM_ARMED_NIGHT, STATE_ALARM_DISARMED)
+from homeassistant.core import callback
+import homeassistant.helpers.config_validation as cv
+from homeassistant.helpers.dispatcher import async_dispatcher_connect
+
+from . import ATTRIBUTION, DATA_ARLO, SIGNAL_UPDATE_ARLO
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/arlo/camera.py b/homeassistant/components/arlo/camera.py
index 6f20ecdad..43ccabb73 100644
--- a/homeassistant/components/arlo/camera.py
+++ b/homeassistant/components/arlo/camera.py
@@ -3,16 +3,16 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.core import callback
-import homeassistant.helpers.config_validation as cv
-from homeassistant.components.arlo import (
-    DEFAULT_BRAND, DATA_ARLO, SIGNAL_UPDATE_ARLO)
-from homeassistant.components.camera import Camera, PLATFORM_SCHEMA
+from homeassistant.components.camera import PLATFORM_SCHEMA, Camera
 from homeassistant.components.ffmpeg import DATA_FFMPEG
 from homeassistant.const import ATTR_BATTERY_LEVEL
+from homeassistant.core import callback
 from homeassistant.helpers.aiohttp_client import async_aiohttp_proxy_stream
+import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
+from . import DATA_ARLO, DEFAULT_BRAND, SIGNAL_UPDATE_ARLO
+
 _LOGGER = logging.getLogger(__name__)
 
 ARLO_MODE_ARMED = 'armed'
diff --git a/homeassistant/components/arlo/sensor.py b/homeassistant/components/arlo/sensor.py
index 1c3cc9334..e08669eb8 100644
--- a/homeassistant/components/arlo/sensor.py
+++ b/homeassistant/components/arlo/sensor.py
@@ -3,19 +3,18 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.core import callback
-import homeassistant.helpers.config_validation as cv
-from homeassistant.components.arlo import (
-    ATTRIBUTION, DEFAULT_BRAND, DATA_ARLO, SIGNAL_UPDATE_ARLO)
 from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import (
-    ATTR_ATTRIBUTION, CONF_MONITORED_CONDITIONS, TEMP_CELSIUS,
-    DEVICE_CLASS_TEMPERATURE, DEVICE_CLASS_HUMIDITY)
-
+    ATTR_ATTRIBUTION, CONF_MONITORED_CONDITIONS, DEVICE_CLASS_HUMIDITY,
+    DEVICE_CLASS_TEMPERATURE, TEMP_CELSIUS)
+from homeassistant.core import callback
+import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.icon import icon_for_battery_level
 
+from . import ATTRIBUTION, DATA_ARLO, DEFAULT_BRAND, SIGNAL_UPDATE_ARLO
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['arlo']
diff --git a/homeassistant/components/asterisk_mbox/mailbox.py b/homeassistant/components/asterisk_mbox/mailbox.py
index 9da4bd1a2..a3e7c3f4d 100644
--- a/homeassistant/components/asterisk_mbox/mailbox.py
+++ b/homeassistant/components/asterisk_mbox/mailbox.py
@@ -1,12 +1,13 @@
 """Support for the Asterisk Voicemail interface."""
 import logging
 
-from homeassistant.components.asterisk_mbox import DOMAIN as ASTERISK_DOMAIN
 from homeassistant.components.mailbox import (
     CONTENT_TYPE_MPEG, Mailbox, StreamError)
 from homeassistant.core import callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
+from . import DOMAIN as ASTERISK_DOMAIN
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['asterisk_mbox']
diff --git a/homeassistant/components/asuswrt/device_tracker.py b/homeassistant/components/asuswrt/device_tracker.py
index 4630c3730..f5c6dd4a4 100644
--- a/homeassistant/components/asuswrt/device_tracker.py
+++ b/homeassistant/components/asuswrt/device_tracker.py
@@ -6,9 +6,10 @@ https://home-assistant.io/components/device_tracker.asuswrt/
 """
 import logging
 
-from homeassistant.components.asuswrt import DATA_ASUSWRT
 from homeassistant.components.device_tracker import DeviceScanner
 
+from . import DATA_ASUSWRT
+
 DEPENDENCIES = ['asuswrt']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/asuswrt/sensor.py b/homeassistant/components/asuswrt/sensor.py
index 08e2ec27c..53d232862 100644
--- a/homeassistant/components/asuswrt/sensor.py
+++ b/homeassistant/components/asuswrt/sensor.py
@@ -7,7 +7,8 @@ https://home-assistant.io/components/sensor.asuswrt/
 import logging
 
 from homeassistant.helpers.entity import Entity
-from homeassistant.components.asuswrt import DATA_ASUSWRT
+
+from . import DATA_ASUSWRT
 
 DEPENDENCIES = ['asuswrt']
 
diff --git a/homeassistant/components/august/binary_sensor.py b/homeassistant/components/august/binary_sensor.py
index 1ad2d80ce..3a69d4117 100644
--- a/homeassistant/components/august/binary_sensor.py
+++ b/homeassistant/components/august/binary_sensor.py
@@ -1,9 +1,10 @@
 """Support for August binary sensors."""
+from datetime import datetime, timedelta
 import logging
-from datetime import timedelta, datetime
 
-from homeassistant.components.august import DATA_AUGUST
-from homeassistant.components.binary_sensor import (BinarySensorDevice)
+from homeassistant.components.binary_sensor import BinarySensorDevice
+
+from . import DATA_AUGUST
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/august/camera.py b/homeassistant/components/august/camera.py
index 7420bb040..53a9d78bc 100644
--- a/homeassistant/components/august/camera.py
+++ b/homeassistant/components/august/camera.py
@@ -3,9 +3,10 @@ from datetime import timedelta
 
 import requests
 
-from homeassistant.components.august import DATA_AUGUST, DEFAULT_TIMEOUT
 from homeassistant.components.camera import Camera
 
+from . import DATA_AUGUST, DEFAULT_TIMEOUT
+
 DEPENDENCIES = ['august']
 
 SCAN_INTERVAL = timedelta(seconds=5)
diff --git a/homeassistant/components/august/lock.py b/homeassistant/components/august/lock.py
index ff355bbf8..e112eaa25 100644
--- a/homeassistant/components/august/lock.py
+++ b/homeassistant/components/august/lock.py
@@ -1,11 +1,12 @@
 """Support for August lock."""
-import logging
 from datetime import timedelta
+import logging
 
-from homeassistant.components.august import DATA_AUGUST
 from homeassistant.components.lock import LockDevice
 from homeassistant.const import ATTR_BATTERY_LEVEL
 
+from . import DATA_AUGUST
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['august']
diff --git a/homeassistant/components/automation/__init__.py b/homeassistant/components/automation/__init__.py
index 5a7b19ce4..94776deef 100644
--- a/homeassistant/components/automation/__init__.py
+++ b/homeassistant/components/automation/__init__.py
@@ -6,20 +6,20 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.setup import async_prepare_setup_platform
-from homeassistant.core import CoreState, Context
-from homeassistant.loader import bind_hass
 from homeassistant.const import (
-    ATTR_ENTITY_ID, CONF_PLATFORM, STATE_ON, SERVICE_TURN_ON, SERVICE_TURN_OFF,
-    SERVICE_TOGGLE, SERVICE_RELOAD, EVENT_HOMEASSISTANT_START, CONF_ID,
-    EVENT_AUTOMATION_TRIGGERED, ATTR_NAME)
+    ATTR_ENTITY_ID, ATTR_NAME, CONF_ID, CONF_PLATFORM,
+    EVENT_AUTOMATION_TRIGGERED, EVENT_HOMEASSISTANT_START, SERVICE_RELOAD,
+    SERVICE_TOGGLE, SERVICE_TURN_OFF, SERVICE_TURN_ON, STATE_ON)
+from homeassistant.core import Context, CoreState
 from homeassistant.exceptions import HomeAssistantError
-from homeassistant.helpers import extract_domain_configs, script, condition
+from homeassistant.helpers import condition, extract_domain_configs, script
+import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import ToggleEntity
 from homeassistant.helpers.entity_component import EntityComponent
 from homeassistant.helpers.restore_state import RestoreEntity
+from homeassistant.loader import bind_hass
+from homeassistant.setup import async_prepare_setup_platform
 from homeassistant.util.dt import utcnow
-import homeassistant.helpers.config_validation as cv
 
 DOMAIN = 'automation'
 DEPENDENCIES = ['group']
@@ -54,9 +54,8 @@ _LOGGER = logging.getLogger(__name__)
 def _platform_validator(config):
     """Validate it is a valid  platform."""
     try:
-        platform = importlib.import_module(
-            'homeassistant.components.automation.{}'.format(
-                config[CONF_PLATFORM]))
+        platform = importlib.import_module('.{}'.format(config[CONF_PLATFORM]),
+                                           __name__)
     except ImportError:
         raise vol.Invalid('Invalid platform specified') from None
 
diff --git a/homeassistant/components/blink/alarm_control_panel.py b/homeassistant/components/blink/alarm_control_panel.py
index b9bf4a525..75e645dff 100644
--- a/homeassistant/components/blink/alarm_control_panel.py
+++ b/homeassistant/components/blink/alarm_control_panel.py
@@ -2,10 +2,10 @@
 import logging
 
 from homeassistant.components.alarm_control_panel import AlarmControlPanel
-from homeassistant.components.blink import (
-    BLINK_DATA, DEFAULT_ATTRIBUTION)
 from homeassistant.const import (
-    ATTR_ATTRIBUTION, STATE_ALARM_DISARMED, STATE_ALARM_ARMED_AWAY)
+    ATTR_ATTRIBUTION, STATE_ALARM_ARMED_AWAY, STATE_ALARM_DISARMED)
+
+from . import BLINK_DATA, DEFAULT_ATTRIBUTION
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/blink/binary_sensor.py b/homeassistant/components/blink/binary_sensor.py
index fe0b95b15..466b73caf 100644
--- a/homeassistant/components/blink/binary_sensor.py
+++ b/homeassistant/components/blink/binary_sensor.py
@@ -1,8 +1,9 @@
 """Support for Blink system camera control."""
-from homeassistant.components.blink import BLINK_DATA, BINARY_SENSORS
 from homeassistant.components.binary_sensor import BinarySensorDevice
 from homeassistant.const import CONF_MONITORED_CONDITIONS
 
+from . import BINARY_SENSORS, BLINK_DATA
+
 DEPENDENCIES = ['blink']
 
 
diff --git a/homeassistant/components/blink/camera.py b/homeassistant/components/blink/camera.py
index 2e5c024d6..1da3080e3 100644
--- a/homeassistant/components/blink/camera.py
+++ b/homeassistant/components/blink/camera.py
@@ -1,9 +1,10 @@
 """Support for Blink system camera."""
 import logging
 
-from homeassistant.components.blink import BLINK_DATA, DEFAULT_BRAND
 from homeassistant.components.camera import Camera
 
+from . import BLINK_DATA, DEFAULT_BRAND
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['blink']
diff --git a/homeassistant/components/blink/sensor.py b/homeassistant/components/blink/sensor.py
index c1fdf9252..0e97db9d7 100644
--- a/homeassistant/components/blink/sensor.py
+++ b/homeassistant/components/blink/sensor.py
@@ -1,9 +1,10 @@
 """Support for Blink system camera sensors."""
 import logging
 
-from homeassistant.components.blink import BLINK_DATA, SENSORS
-from homeassistant.helpers.entity import Entity
 from homeassistant.const import CONF_MONITORED_CONDITIONS
+from homeassistant.helpers.entity import Entity
+
+from . import BLINK_DATA, SENSORS
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/bmw_connected_drive/binary_sensor.py b/homeassistant/components/bmw_connected_drive/binary_sensor.py
index 1843f647d..deab15729 100644
--- a/homeassistant/components/bmw_connected_drive/binary_sensor.py
+++ b/homeassistant/components/bmw_connected_drive/binary_sensor.py
@@ -2,9 +2,10 @@
 import logging
 
 from homeassistant.components.binary_sensor import BinarySensorDevice
-from homeassistant.components.bmw_connected_drive import DOMAIN as BMW_DOMAIN
 from homeassistant.const import LENGTH_KILOMETERS
 
+from . import DOMAIN as BMW_DOMAIN
+
 DEPENDENCIES = ['bmw_connected_drive']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/bmw_connected_drive/device_tracker.py b/homeassistant/components/bmw_connected_drive/device_tracker.py
index 21121b069..20e84e33e 100644
--- a/homeassistant/components/bmw_connected_drive/device_tracker.py
+++ b/homeassistant/components/bmw_connected_drive/device_tracker.py
@@ -1,10 +1,10 @@
 """Device tracker for BMW Connected Drive vehicles."""
 import logging
 
-from homeassistant.components.bmw_connected_drive import DOMAIN \
-    as BMW_DOMAIN
 from homeassistant.util import slugify
 
+from . import DOMAIN as BMW_DOMAIN
+
 DEPENDENCIES = ['bmw_connected_drive']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/bmw_connected_drive/lock.py b/homeassistant/components/bmw_connected_drive/lock.py
index 8a5eddaa8..fe646dcd1 100644
--- a/homeassistant/components/bmw_connected_drive/lock.py
+++ b/homeassistant/components/bmw_connected_drive/lock.py
@@ -1,10 +1,11 @@
 """Support for BMW car locks with BMW ConnectedDrive."""
 import logging
 
-from homeassistant.components.bmw_connected_drive import DOMAIN as BMW_DOMAIN
 from homeassistant.components.lock import LockDevice
 from homeassistant.const import STATE_LOCKED, STATE_UNLOCKED
 
+from . import DOMAIN as BMW_DOMAIN
+
 DEPENDENCIES = ['bmw_connected_drive']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/bmw_connected_drive/sensor.py b/homeassistant/components/bmw_connected_drive/sensor.py
index a01142c53..03c03f01b 100644
--- a/homeassistant/components/bmw_connected_drive/sensor.py
+++ b/homeassistant/components/bmw_connected_drive/sensor.py
@@ -1,12 +1,13 @@
 """Support for reading vehicle status from BMW connected drive portal."""
 import logging
 
-from homeassistant.components.bmw_connected_drive import DOMAIN as BMW_DOMAIN
+from homeassistant.const import (
+    CONF_UNIT_SYSTEM_IMPERIAL, LENGTH_KILOMETERS, LENGTH_MILES, VOLUME_GALLONS,
+    VOLUME_LITERS)
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.icon import icon_for_battery_level
-from homeassistant.const import (CONF_UNIT_SYSTEM_IMPERIAL, VOLUME_LITERS,
-                                 VOLUME_GALLONS, LENGTH_KILOMETERS,
-                                 LENGTH_MILES)
+
+from . import DOMAIN as BMW_DOMAIN
 
 DEPENDENCIES = ['bmw_connected_drive']
 
diff --git a/homeassistant/components/bom/weather.py b/homeassistant/components/bom/weather.py
index b35e7928e..2444192d8 100644
--- a/homeassistant/components/bom/weather.py
+++ b/homeassistant/components/bom/weather.py
@@ -3,14 +3,15 @@ import logging
 
 import voluptuous as vol
 
-# Reuse data and API logic from the sensor implementation
-from homeassistant.components.bom.sensor import (
-    CONF_STATION, BOMCurrentData, closest_station, validate_station)
 from homeassistant.components.weather import PLATFORM_SCHEMA, WeatherEntity
 from homeassistant.const import (
     CONF_LATITUDE, CONF_LONGITUDE, CONF_NAME, TEMP_CELSIUS)
 from homeassistant.helpers import config_validation as cv
 
+# Reuse data and API logic from the sensor implementation
+from .sensor import (
+    CONF_STATION, BOMCurrentData, closest_station, validate_station)
+
 _LOGGER = logging.getLogger(__name__)
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/buienradar/sensor.py b/homeassistant/components/buienradar/sensor.py
index eeb65ab3c..fa386a177 100644
--- a/homeassistant/components/buienradar/sensor.py
+++ b/homeassistant/components/buienradar/sensor.py
@@ -8,19 +8,18 @@ import asyncio
 from datetime import datetime, timedelta
 import logging
 
-import async_timeout
 import aiohttp
+import async_timeout
 import voluptuous as vol
 
-import homeassistant.helpers.config_validation as cv
 from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import (
-    ATTR_ATTRIBUTION, CONF_LATITUDE, CONF_LONGITUDE,
-    CONF_MONITORED_CONDITIONS, CONF_NAME, TEMP_CELSIUS)
+    ATTR_ATTRIBUTION, CONF_LATITUDE, CONF_LONGITUDE, CONF_MONITORED_CONDITIONS,
+    CONF_NAME, TEMP_CELSIUS)
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
+import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
-from homeassistant.helpers.event import (
-    async_track_point_in_utc_time)
+from homeassistant.helpers.event import async_track_point_in_utc_time
 from homeassistant.util import dt as dt_util
 
 REQUIREMENTS = ['buienradar==0.91']
@@ -144,7 +143,7 @@ PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
 async def async_setup_platform(hass, config, async_add_entities,
                                discovery_info=None):
     """Create the buienradar sensor."""
-    from homeassistant.components.buienradar.weather import DEFAULT_TIMEFRAME
+    from ..weather import DEFAULT_TIMEFRAME
 
     latitude = config.get(CONF_LATITUDE, hass.config.latitude)
     longitude = config.get(CONF_LONGITUDE, hass.config.longitude)
diff --git a/homeassistant/components/buienradar/weather.py b/homeassistant/components/buienradar/weather.py
index 585f9ac55..86dcb229a 100644
--- a/homeassistant/components/buienradar/weather.py
+++ b/homeassistant/components/buienradar/weather.py
@@ -3,8 +3,6 @@ import logging
 
 import voluptuous as vol
 
-# Reuse data and API logic from the sensor implementation
-from homeassistant.components.buienradar.sensor import BrData
 from homeassistant.components.weather import (
     ATTR_FORECAST_CONDITION, ATTR_FORECAST_TEMP, ATTR_FORECAST_TEMP_LOW,
     ATTR_FORECAST_TIME, PLATFORM_SCHEMA, WeatherEntity)
@@ -12,6 +10,9 @@ from homeassistant.const import (
     CONF_LATITUDE, CONF_LONGITUDE, CONF_NAME, TEMP_CELSIUS)
 from homeassistant.helpers import config_validation as cv
 
+# Reuse data and API logic from the sensor implementation
+from .sensor import BrData
+
 REQUIREMENTS = ['buienradar==0.91']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/calendar/demo.py b/homeassistant/components/calendar/demo.py
index bf9d4abeb..bd5724ca4 100644
--- a/homeassistant/components/calendar/demo.py
+++ b/homeassistant/components/calendar/demo.py
@@ -6,9 +6,10 @@ https://home-assistant.io/components/demo/
 """
 import copy
 
-import homeassistant.util.dt as dt_util
-from homeassistant.components.calendar import CalendarEventDevice, get_date
 from homeassistant.components.google import CONF_DEVICE_ID, CONF_NAME
+import homeassistant.util.dt as dt_util
+
+from . import CalendarEventDevice, get_date
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/camera/demo.py b/homeassistant/components/camera/demo.py
index f950edb5c..f9be3f47c 100644
--- a/homeassistant/components/camera/demo.py
+++ b/homeassistant/components/camera/demo.py
@@ -7,7 +7,7 @@ https://home-assistant.io/components/demo/
 import logging
 import os
 
-from homeassistant.components.camera import Camera, SUPPORT_ON_OFF
+from . import SUPPORT_ON_OFF, Camera
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/canary/alarm_control_panel.py b/homeassistant/components/canary/alarm_control_panel.py
index b22a76fdb..617942246 100644
--- a/homeassistant/components/canary/alarm_control_panel.py
+++ b/homeassistant/components/canary/alarm_control_panel.py
@@ -7,9 +7,11 @@ https://home-assistant.io/components/alarm_control_panel.canary/
 import logging
 
 from homeassistant.components.alarm_control_panel import AlarmControlPanel
-from homeassistant.components.canary import DATA_CANARY
-from homeassistant.const import STATE_ALARM_DISARMED, STATE_ALARM_ARMED_AWAY, \
-    STATE_ALARM_ARMED_NIGHT, STATE_ALARM_ARMED_HOME
+from homeassistant.const import (
+    STATE_ALARM_ARMED_AWAY, STATE_ALARM_ARMED_HOME, STATE_ALARM_ARMED_NIGHT,
+    STATE_ALARM_DISARMED)
+
+from . import DATA_CANARY
 
 DEPENDENCIES = ['canary']
 
diff --git a/homeassistant/components/canary/camera.py b/homeassistant/components/canary/camera.py
index eb0c8f3fc..c54565d6f 100644
--- a/homeassistant/components/canary/camera.py
+++ b/homeassistant/components/canary/camera.py
@@ -5,18 +5,19 @@ For more details about this platform, please refer to the documentation at
 https://home-assistant.io/components/camera.canary/
 """
 import asyncio
-import logging
 from datetime import timedelta
+import logging
 
 import voluptuous as vol
 
-from homeassistant.components.camera import Camera, PLATFORM_SCHEMA
-from homeassistant.components.canary import DATA_CANARY, DEFAULT_TIMEOUT
+from homeassistant.components.camera import PLATFORM_SCHEMA, Camera
 from homeassistant.components.ffmpeg import DATA_FFMPEG
 from homeassistant.helpers import config_validation as cv
 from homeassistant.helpers.aiohttp_client import async_aiohttp_proxy_stream
 from homeassistant.util import Throttle
 
+from . import DATA_CANARY, DEFAULT_TIMEOUT
+
 CONF_FFMPEG_ARGUMENTS = 'ffmpeg_arguments'
 
 DEPENDENCIES = ['canary', 'ffmpeg']
diff --git a/homeassistant/components/canary/sensor.py b/homeassistant/components/canary/sensor.py
index 015c6b378..d24c00c92 100644
--- a/homeassistant/components/canary/sensor.py
+++ b/homeassistant/components/canary/sensor.py
@@ -5,11 +5,12 @@ For more details about this platform, please refer to the documentation at
 https://home-assistant.io/components/sensor.canary/
 """
 
-from homeassistant.components.canary import DATA_CANARY
 from homeassistant.const import TEMP_CELSIUS
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.icon import icon_for_battery_level
 
+from . import DATA_CANARY
+
 DEPENDENCIES = ['canary']
 
 SENSOR_VALUE_PRECISION = 2
diff --git a/homeassistant/components/cast/media_player.py b/homeassistant/components/cast/media_player.py
index 28373cc6c..77332883a 100644
--- a/homeassistant/components/cast/media_player.py
+++ b/homeassistant/components/cast/media_player.py
@@ -7,14 +7,13 @@ from typing import Optional, Tuple
 import attr
 import voluptuous as vol
 
-from homeassistant.components.cast import DOMAIN as CAST_DOMAIN
 from homeassistant.components.media_player import (
-    MediaPlayerDevice, PLATFORM_SCHEMA)
+    PLATFORM_SCHEMA, MediaPlayerDevice)
 from homeassistant.components.media_player.const import (
-    MEDIA_TYPE_MOVIE, MEDIA_TYPE_MUSIC, MEDIA_TYPE_TVSHOW,
-    SUPPORT_NEXT_TRACK, SUPPORT_PAUSE, SUPPORT_PLAY, SUPPORT_PLAY_MEDIA,
-    SUPPORT_PREVIOUS_TRACK, SUPPORT_STOP, SUPPORT_TURN_OFF, SUPPORT_TURN_ON,
-    SUPPORT_VOLUME_MUTE, SUPPORT_VOLUME_SET)
+    MEDIA_TYPE_MOVIE, MEDIA_TYPE_MUSIC, MEDIA_TYPE_TVSHOW, SUPPORT_NEXT_TRACK,
+    SUPPORT_PAUSE, SUPPORT_PLAY, SUPPORT_PLAY_MEDIA, SUPPORT_PREVIOUS_TRACK,
+    SUPPORT_STOP, SUPPORT_TURN_OFF, SUPPORT_TURN_ON, SUPPORT_VOLUME_MUTE,
+    SUPPORT_VOLUME_SET)
 from homeassistant.const import (
     CONF_HOST, EVENT_HOMEASSISTANT_STOP, STATE_IDLE, STATE_OFF, STATE_PAUSED,
     STATE_PLAYING)
@@ -26,6 +25,8 @@ from homeassistant.helpers.dispatcher import (
 from homeassistant.helpers.typing import ConfigType, HomeAssistantType
 import homeassistant.util.dt as dt_util
 
+from . import DOMAIN as CAST_DOMAIN
+
 DEPENDENCIES = ('cast',)
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/climate/demo.py b/homeassistant/components/climate/demo.py
index 5b4775982..2dd31c1b2 100644
--- a/homeassistant/components/climate/demo.py
+++ b/homeassistant/components/climate/demo.py
@@ -4,16 +4,16 @@ Demo platform that offers a fake climate device.
 For more details about this platform, please refer to the documentation
 https://home-assistant.io/components/demo/
 """
-from homeassistant.components.climate import ClimateDevice
-from homeassistant.components.climate.const import (
-    ATTR_TARGET_TEMP_HIGH, ATTR_TARGET_TEMP_LOW,
-    SUPPORT_TARGET_TEMPERATURE, SUPPORT_TARGET_HUMIDITY,
-    SUPPORT_TARGET_HUMIDITY_LOW, SUPPORT_TARGET_HUMIDITY_HIGH,
-    SUPPORT_AWAY_MODE, SUPPORT_HOLD_MODE, SUPPORT_FAN_MODE,
-    SUPPORT_OPERATION_MODE, SUPPORT_AUX_HEAT, SUPPORT_SWING_MODE,
-    SUPPORT_TARGET_TEMPERATURE_HIGH, SUPPORT_TARGET_TEMPERATURE_LOW,
-    SUPPORT_ON_OFF)
-from homeassistant.const import TEMP_CELSIUS, TEMP_FAHRENHEIT, ATTR_TEMPERATURE
+from homeassistant.const import ATTR_TEMPERATURE, TEMP_CELSIUS, TEMP_FAHRENHEIT
+
+from . import ClimateDevice
+from .const import (
+    ATTR_TARGET_TEMP_HIGH, ATTR_TARGET_TEMP_LOW, SUPPORT_AUX_HEAT,
+    SUPPORT_AWAY_MODE, SUPPORT_FAN_MODE, SUPPORT_HOLD_MODE, SUPPORT_ON_OFF,
+    SUPPORT_OPERATION_MODE, SUPPORT_SWING_MODE, SUPPORT_TARGET_HUMIDITY,
+    SUPPORT_TARGET_HUMIDITY_HIGH, SUPPORT_TARGET_HUMIDITY_LOW,
+    SUPPORT_TARGET_TEMPERATURE, SUPPORT_TARGET_TEMPERATURE_HIGH,
+    SUPPORT_TARGET_TEMPERATURE_LOW)
 
 SUPPORT_FLAGS = SUPPORT_TARGET_HUMIDITY_LOW | SUPPORT_TARGET_HUMIDITY_HIGH
 
diff --git a/homeassistant/components/climate/generic_thermostat.py b/homeassistant/components/climate/generic_thermostat.py
index da4f79ec1..af0a3eea6 100644
--- a/homeassistant/components/climate/generic_thermostat.py
+++ b/homeassistant/components/climate/generic_thermostat.py
@@ -9,23 +9,23 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.core import callback
-from homeassistant.core import DOMAIN as HA_DOMAIN
-from homeassistant.components.climate import ClimateDevice, PLATFORM_SCHEMA
-from homeassistant.components.climate.const import (
-    STATE_HEAT, STATE_COOL, STATE_IDLE, STATE_AUTO,
-    ATTR_OPERATION_MODE, ATTR_AWAY_MODE, SUPPORT_OPERATION_MODE,
-    SUPPORT_AWAY_MODE, SUPPORT_TARGET_TEMPERATURE)
 from homeassistant.const import (
-    STATE_ON, STATE_OFF, ATTR_TEMPERATURE, CONF_NAME, ATTR_ENTITY_ID,
-    SERVICE_TURN_ON, SERVICE_TURN_OFF, STATE_UNKNOWN, PRECISION_HALVES,
-    PRECISION_TENTHS, PRECISION_WHOLE)
+    ATTR_ENTITY_ID, ATTR_TEMPERATURE, CONF_NAME, PRECISION_HALVES,
+    PRECISION_TENTHS, PRECISION_WHOLE, SERVICE_TURN_OFF, SERVICE_TURN_ON,
+    STATE_OFF, STATE_ON, STATE_UNKNOWN)
+from homeassistant.core import DOMAIN as HA_DOMAIN, callback
 from homeassistant.helpers import condition
+import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.event import (
     async_track_state_change, async_track_time_interval)
-import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.restore_state import RestoreEntity
 
+from . import PLATFORM_SCHEMA, ClimateDevice
+from .const import (
+    ATTR_AWAY_MODE, ATTR_OPERATION_MODE, STATE_AUTO, STATE_COOL, STATE_HEAT,
+    STATE_IDLE, SUPPORT_AWAY_MODE, SUPPORT_OPERATION_MODE,
+    SUPPORT_TARGET_TEMPERATURE)
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['switch', 'sensor']
diff --git a/homeassistant/components/comfoconnect/fan.py b/homeassistant/components/comfoconnect/fan.py
index a396dd276..88dcffcfd 100644
--- a/homeassistant/components/comfoconnect/fan.py
+++ b/homeassistant/components/comfoconnect/fan.py
@@ -1,12 +1,12 @@
 """Platform to control a Zehnder ComfoAir Q350/450/600 ventilation unit."""
 import logging
 
-from homeassistant.components.comfoconnect import (
-    DOMAIN, ComfoConnectBridge, SIGNAL_COMFOCONNECT_UPDATE_RECEIVED)
 from homeassistant.components.fan import (
-    FanEntity, SPEED_OFF, SPEED_LOW, SPEED_MEDIUM, SPEED_HIGH,
-    SUPPORT_SET_SPEED)
-from homeassistant.helpers.dispatcher import (dispatcher_connect)
+    SPEED_HIGH, SPEED_LOW, SPEED_MEDIUM, SPEED_OFF, SUPPORT_SET_SPEED,
+    FanEntity)
+from homeassistant.helpers.dispatcher import dispatcher_connect
+
+from . import DOMAIN, SIGNAL_COMFOCONNECT_UPDATE_RECEIVED, ComfoConnectBridge
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/comfoconnect/sensor.py b/homeassistant/components/comfoconnect/sensor.py
index ac5de866c..edb96b8d2 100644
--- a/homeassistant/components/comfoconnect/sensor.py
+++ b/homeassistant/components/comfoconnect/sensor.py
@@ -1,15 +1,15 @@
 """Platform to control a Zehnder ComfoAir Q350/450/600 ventilation unit."""
 import logging
 
-from homeassistant.components.comfoconnect import (
-    DOMAIN, ComfoConnectBridge, ATTR_CURRENT_TEMPERATURE,
-    ATTR_CURRENT_HUMIDITY, ATTR_OUTSIDE_TEMPERATURE,
-    ATTR_OUTSIDE_HUMIDITY, ATTR_AIR_FLOW_SUPPLY,
-    ATTR_AIR_FLOW_EXHAUST, SIGNAL_COMFOCONNECT_UPDATE_RECEIVED)
 from homeassistant.const import CONF_RESOURCES, TEMP_CELSIUS
 from homeassistant.helpers.dispatcher import dispatcher_connect
 from homeassistant.helpers.entity import Entity
 
+from . import (
+    ATTR_AIR_FLOW_EXHAUST, ATTR_AIR_FLOW_SUPPLY, ATTR_CURRENT_HUMIDITY,
+    ATTR_CURRENT_TEMPERATURE, ATTR_OUTSIDE_HUMIDITY, ATTR_OUTSIDE_TEMPERATURE,
+    DOMAIN, SIGNAL_COMFOCONNECT_UPDATE_RECEIVED, ComfoConnectBridge)
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['comfoconnect']
diff --git a/homeassistant/components/command_line/binary_sensor.py b/homeassistant/components/command_line/binary_sensor.py
index af9b3d48d..21ee1312e 100644
--- a/homeassistant/components/command_line/binary_sensor.py
+++ b/homeassistant/components/command_line/binary_sensor.py
@@ -4,18 +4,19 @@ Support for custom shell commands to retrieve values.
 For more details about this platform, please refer to the documentation at
 https://home-assistant.io/components/binary_sensor.command_line/
 """
-import logging
 from datetime import timedelta
+import logging
 
 import voluptuous as vol
 
-import homeassistant.helpers.config_validation as cv
 from homeassistant.components.binary_sensor import (
-    BinarySensorDevice, DEVICE_CLASSES_SCHEMA, PLATFORM_SCHEMA)
-from homeassistant.components.command_line.sensor import CommandSensorData
+    DEVICE_CLASSES_SCHEMA, PLATFORM_SCHEMA, BinarySensorDevice)
 from homeassistant.const import (
-    CONF_PAYLOAD_OFF, CONF_PAYLOAD_ON, CONF_NAME, CONF_VALUE_TEMPLATE,
-    CONF_COMMAND, CONF_DEVICE_CLASS)
+    CONF_COMMAND, CONF_DEVICE_CLASS, CONF_NAME, CONF_PAYLOAD_OFF,
+    CONF_PAYLOAD_ON, CONF_VALUE_TEMPLATE)
+import homeassistant.helpers.config_validation as cv
+
+from .sensor import CommandSensorData
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/config/automation.py b/homeassistant/components/config/automation.py
index 47ac9d3a4..175d90ff5 100644
--- a/homeassistant/components/config/automation.py
+++ b/homeassistant/components/config/automation.py
@@ -2,11 +2,12 @@
 from collections import OrderedDict
 import uuid
 
-from homeassistant.components.config import EditIdBasedConfigView
-from homeassistant.const import CONF_ID, SERVICE_RELOAD
 from homeassistant.components.automation import DOMAIN, PLATFORM_SCHEMA
+from homeassistant.const import CONF_ID, SERVICE_RELOAD
 import homeassistant.helpers.config_validation as cv
 
+from . import EditIdBasedConfigView
+
 CONFIG_PATH = 'automations.yaml'
 
 
diff --git a/homeassistant/components/config/customize.py b/homeassistant/components/config/customize.py
index ec9d9d0ff..bb774ae7e 100644
--- a/homeassistant/components/config/customize.py
+++ b/homeassistant/components/config/customize.py
@@ -1,11 +1,11 @@
 """Provide configuration end points for Customize."""
-from homeassistant.components.config import EditKeyBasedConfigView
 from homeassistant.components import SERVICE_RELOAD_CORE_CONFIG
 from homeassistant.config import DATA_CUSTOMIZE
 from homeassistant.core import DOMAIN
-
 import homeassistant.helpers.config_validation as cv
 
+from . import EditKeyBasedConfigView
+
 CONFIG_PATH = 'customize.yaml'
 
 
diff --git a/homeassistant/components/config/group.py b/homeassistant/components/config/group.py
index f9b9a2c49..60421bcc1 100644
--- a/homeassistant/components/config/group.py
+++ b/homeassistant/components/config/group.py
@@ -1,9 +1,9 @@
 """Provide configuration end points for Groups."""
-from homeassistant.const import SERVICE_RELOAD
-from homeassistant.components.config import EditKeyBasedConfigView
 from homeassistant.components.group import DOMAIN, GROUP_SCHEMA
+from homeassistant.const import SERVICE_RELOAD
 import homeassistant.helpers.config_validation as cv
 
+from . import EditKeyBasedConfigView
 
 CONFIG_PATH = 'groups.yaml'
 
diff --git a/homeassistant/components/config/script.py b/homeassistant/components/config/script.py
index 640e267d0..c8a58e5d7 100644
--- a/homeassistant/components/config/script.py
+++ b/homeassistant/components/config/script.py
@@ -1,9 +1,9 @@
 """Provide configuration end points for scripts."""
-from homeassistant.components.config import EditKeyBasedConfigView
 from homeassistant.components.script import DOMAIN, SCRIPT_ENTRY_SCHEMA
 from homeassistant.const import SERVICE_RELOAD
 import homeassistant.helpers.config_validation as cv
 
+from . import EditKeyBasedConfigView
 
 CONFIG_PATH = 'scripts.yaml'
 
diff --git a/homeassistant/components/config/zwave.py b/homeassistant/components/config/zwave.py
index f29dde459..e7e399684 100644
--- a/homeassistant/components/config/zwave.py
+++ b/homeassistant/components/config/zwave.py
@@ -4,13 +4,14 @@ import logging
 
 from aiohttp.web import Response
 
-from homeassistant.components.config import EditKeyBasedConfigView
 from homeassistant.components.http import HomeAssistantView
 from homeassistant.components.zwave import DEVICE_CONFIG_SCHEMA_ENTRY, const
 from homeassistant.const import HTTP_NOT_FOUND, HTTP_OK
 import homeassistant.core as ha
 import homeassistant.helpers.config_validation as cv
 
+from . import EditKeyBasedConfigView
+
 _LOGGER = logging.getLogger(__name__)
 CONFIG_PATH = 'zwave_device_config.yaml'
 OZW_LOG_FILENAME = 'OZW_Log.txt'
diff --git a/homeassistant/components/conversation/__init__.py b/homeassistant/components/conversation/__init__.py
index 7082cb367..bb2d692f2 100644
--- a/homeassistant/components/conversation/__init__.py
+++ b/homeassistant/components/conversation/__init__.py
@@ -6,17 +6,16 @@ import voluptuous as vol
 
 from homeassistant import core
 from homeassistant.components import http
-from homeassistant.components.conversation.util import create_matcher
-from homeassistant.components.http.data_validator import (
-    RequestDataValidator)
-from homeassistant.components.cover import (INTENT_OPEN_COVER,
-                                            INTENT_CLOSE_COVER)
+from homeassistant.components.cover import (
+    INTENT_CLOSE_COVER, INTENT_OPEN_COVER)
+from homeassistant.components.http.data_validator import RequestDataValidator
 from homeassistant.const import EVENT_COMPONENT_LOADED
 from homeassistant.core import callback
-from homeassistant.helpers import config_validation as cv
-from homeassistant.helpers import intent
+from homeassistant.helpers import config_validation as cv, intent
 from homeassistant.loader import bind_hass
-from homeassistant.setup import (ATTR_COMPONENT)
+from homeassistant.setup import ATTR_COMPONENT
+
+from .util import create_matcher
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/cover/demo.py b/homeassistant/components/cover/demo.py
index 21add0a6c..1f31cecc9 100644
--- a/homeassistant/components/cover/demo.py
+++ b/homeassistant/components/cover/demo.py
@@ -4,11 +4,12 @@ Demo platform for the cover component.
 For more details about this platform, please refer to the documentation
 https://home-assistant.io/components/demo/
 """
-from homeassistant.components.cover import (
-    CoverDevice, SUPPORT_OPEN, SUPPORT_CLOSE, ATTR_POSITION,
-    ATTR_TILT_POSITION)
 from homeassistant.helpers.event import track_utc_time_change
 
+from . import (
+    ATTR_POSITION, ATTR_TILT_POSITION, SUPPORT_CLOSE, SUPPORT_OPEN,
+    CoverDevice)
+
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up the Demo covers."""
diff --git a/homeassistant/components/cover/group.py b/homeassistant/components/cover/group.py
index 0424c9007..aba57284d 100644
--- a/homeassistant/components/cover/group.py
+++ b/homeassistant/components/cover/group.py
@@ -8,22 +8,22 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.core import callback
-from homeassistant.components.cover import (
-    DOMAIN, PLATFORM_SCHEMA, CoverDevice, ATTR_POSITION,
-    ATTR_CURRENT_POSITION, ATTR_TILT_POSITION, ATTR_CURRENT_TILT_POSITION,
-    SUPPORT_OPEN, SUPPORT_CLOSE, SUPPORT_STOP, SUPPORT_SET_POSITION,
-    SUPPORT_OPEN_TILT, SUPPORT_CLOSE_TILT,
-    SUPPORT_STOP_TILT, SUPPORT_SET_TILT_POSITION,
-    SERVICE_OPEN_COVER, SERVICE_CLOSE_COVER, SERVICE_SET_COVER_POSITION,
-    SERVICE_STOP_COVER, SERVICE_OPEN_COVER_TILT, SERVICE_CLOSE_COVER_TILT,
-    SERVICE_STOP_COVER_TILT, SERVICE_SET_COVER_TILT_POSITION)
 from homeassistant.const import (
-    ATTR_ASSUMED_STATE, ATTR_ENTITY_ID, ATTR_SUPPORTED_FEATURES,
-    CONF_ENTITIES, CONF_NAME, STATE_CLOSED)
+    ATTR_ASSUMED_STATE, ATTR_ENTITY_ID, ATTR_SUPPORTED_FEATURES, CONF_ENTITIES,
+    CONF_NAME, STATE_CLOSED)
+from homeassistant.core import callback
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.event import async_track_state_change
 
+from . import (
+    ATTR_CURRENT_POSITION, ATTR_CURRENT_TILT_POSITION, ATTR_POSITION,
+    ATTR_TILT_POSITION, DOMAIN, PLATFORM_SCHEMA, SERVICE_CLOSE_COVER,
+    SERVICE_CLOSE_COVER_TILT, SERVICE_OPEN_COVER, SERVICE_OPEN_COVER_TILT,
+    SERVICE_SET_COVER_POSITION, SERVICE_SET_COVER_TILT_POSITION,
+    SERVICE_STOP_COVER, SERVICE_STOP_COVER_TILT, SUPPORT_CLOSE,
+    SUPPORT_CLOSE_TILT, SUPPORT_OPEN, SUPPORT_OPEN_TILT, SUPPORT_SET_POSITION,
+    SUPPORT_SET_TILT_POSITION, SUPPORT_STOP, SUPPORT_STOP_TILT, CoverDevice)
+
 _LOGGER = logging.getLogger(__name__)
 
 KEY_OPEN_CLOSE = 'open_close'
diff --git a/homeassistant/components/daikin/climate.py b/homeassistant/components/daikin/climate.py
index 869c38869..c42f27855 100644
--- a/homeassistant/components/daikin/climate.py
+++ b/homeassistant/components/daikin/climate.py
@@ -4,19 +4,20 @@ import re
 
 import voluptuous as vol
 
-from homeassistant.components.climate import ClimateDevice, PLATFORM_SCHEMA
+from homeassistant.components.climate import PLATFORM_SCHEMA, ClimateDevice
 from homeassistant.components.climate.const import (
     ATTR_CURRENT_TEMPERATURE, ATTR_FAN_MODE, ATTR_OPERATION_MODE,
-    ATTR_SWING_MODE, STATE_AUTO, STATE_COOL, STATE_DRY,
-    STATE_FAN_ONLY, STATE_HEAT, SUPPORT_FAN_MODE,
-    SUPPORT_OPERATION_MODE, SUPPORT_SWING_MODE, SUPPORT_TARGET_TEMPERATURE)
-from homeassistant.components.daikin import DOMAIN as DAIKIN_DOMAIN
-from homeassistant.components.daikin.const import (
-    ATTR_INSIDE_TEMPERATURE, ATTR_OUTSIDE_TEMPERATURE, ATTR_TARGET_TEMPERATURE)
+    ATTR_SWING_MODE, STATE_AUTO, STATE_COOL, STATE_DRY, STATE_FAN_ONLY,
+    STATE_HEAT, SUPPORT_FAN_MODE, SUPPORT_OPERATION_MODE, SUPPORT_SWING_MODE,
+    SUPPORT_TARGET_TEMPERATURE)
 from homeassistant.const import (
     ATTR_TEMPERATURE, CONF_HOST, CONF_NAME, STATE_OFF, TEMP_CELSIUS)
 import homeassistant.helpers.config_validation as cv
 
+from . import DOMAIN as DAIKIN_DOMAIN
+from .const import (
+    ATTR_INSIDE_TEMPERATURE, ATTR_OUTSIDE_TEMPERATURE, ATTR_TARGET_TEMPERATURE)
+
 _LOGGER = logging.getLogger(__name__)
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/daikin/sensor.py b/homeassistant/components/daikin/sensor.py
index 3669dfac2..5a005e299 100644
--- a/homeassistant/components/daikin/sensor.py
+++ b/homeassistant/components/daikin/sensor.py
@@ -1,14 +1,15 @@
 """Support for Daikin AC sensors."""
 import logging
 
-from homeassistant.components.daikin import DOMAIN as DAIKIN_DOMAIN
-from homeassistant.components.daikin.const import (
-    ATTR_INSIDE_TEMPERATURE, ATTR_OUTSIDE_TEMPERATURE, SENSOR_TYPE_TEMPERATURE,
-    SENSOR_TYPES)
 from homeassistant.const import CONF_ICON, CONF_NAME, CONF_TYPE
 from homeassistant.helpers.entity import Entity
 from homeassistant.util.unit_system import UnitSystem
 
+from . import DOMAIN as DAIKIN_DOMAIN
+from .const import (
+    ATTR_INSIDE_TEMPERATURE, ATTR_OUTSIDE_TEMPERATURE, SENSOR_TYPE_TEMPERATURE,
+    SENSOR_TYPES)
+
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/danfoss_air/binary_sensor.py b/homeassistant/components/danfoss_air/binary_sensor.py
index 4052a1005..723b0d088 100644
--- a/homeassistant/components/danfoss_air/binary_sensor.py
+++ b/homeassistant/components/danfoss_air/binary_sensor.py
@@ -1,7 +1,7 @@
 """Support for the for Danfoss Air HRV binary sensors."""
 from homeassistant.components.binary_sensor import BinarySensorDevice
-from homeassistant.components.danfoss_air import DOMAIN \
-     as DANFOSS_AIR_DOMAIN
+
+from . import DOMAIN as DANFOSS_AIR_DOMAIN
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/danfoss_air/sensor.py b/homeassistant/components/danfoss_air/sensor.py
index 9902184e6..a5dc2a2eb 100644
--- a/homeassistant/components/danfoss_air/sensor.py
+++ b/homeassistant/components/danfoss_air/sensor.py
@@ -1,13 +1,13 @@
 """Support for the for Danfoss Air HRV sensors."""
 import logging
 
-from homeassistant.components.danfoss_air import DOMAIN \
-     as DANFOSS_AIR_DOMAIN
 from homeassistant.const import (
-    TEMP_CELSIUS, DEVICE_CLASS_BATTERY,
-    DEVICE_CLASS_TEMPERATURE, DEVICE_CLASS_HUMIDITY)
+    DEVICE_CLASS_BATTERY, DEVICE_CLASS_HUMIDITY, DEVICE_CLASS_TEMPERATURE,
+    TEMP_CELSIUS)
 from homeassistant.helpers.entity import Entity
 
+from . import DOMAIN as DANFOSS_AIR_DOMAIN
+
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/danfoss_air/switch.py b/homeassistant/components/danfoss_air/switch.py
index ec85757be..f5a7fd47f 100644
--- a/homeassistant/components/danfoss_air/switch.py
+++ b/homeassistant/components/danfoss_air/switch.py
@@ -1,10 +1,9 @@
 """Support for the for Danfoss Air HRV sswitches."""
 import logging
 
-from homeassistant.components.switch import (
-    SwitchDevice)
-from homeassistant.components.danfoss_air import DOMAIN \
-     as DANFOSS_AIR_DOMAIN
+from homeassistant.components.switch import SwitchDevice
+
+from . import DOMAIN as DANFOSS_AIR_DOMAIN
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/deconz/const.py b/homeassistant/components/deconz/const.py
index bf0799d1f..e728430f2 100644
--- a/homeassistant/components/deconz/const.py
+++ b/homeassistant/components/deconz/const.py
@@ -1,7 +1,7 @@
 """Constants for the deCONZ component."""
 import logging
 
-_LOGGER = logging.getLogger('homeassistant.components.deconz')
+_LOGGER = logging.getLogger('.')
 
 DOMAIN = 'deconz'
 
diff --git a/homeassistant/components/digital_ocean/binary_sensor.py b/homeassistant/components/digital_ocean/binary_sensor.py
index 88df56cc6..d496a0916 100644
--- a/homeassistant/components/digital_ocean/binary_sensor.py
+++ b/homeassistant/components/digital_ocean/binary_sensor.py
@@ -3,14 +3,15 @@ import logging
 
 import voluptuous as vol
 
-import homeassistant.helpers.config_validation as cv
 from homeassistant.components.binary_sensor import (
-    BinarySensorDevice, PLATFORM_SCHEMA)
-from homeassistant.components.digital_ocean import (
-    CONF_DROPLETS, ATTR_CREATED_AT, ATTR_DROPLET_ID, ATTR_DROPLET_NAME,
-    ATTR_FEATURES, ATTR_IPV4_ADDRESS, ATTR_IPV6_ADDRESS, ATTR_MEMORY,
-    ATTR_REGION, ATTR_VCPUS, ATTRIBUTION, DATA_DIGITAL_OCEAN)
+    PLATFORM_SCHEMA, BinarySensorDevice)
 from homeassistant.const import ATTR_ATTRIBUTION
+import homeassistant.helpers.config_validation as cv
+
+from . import (
+    ATTR_CREATED_AT, ATTR_DROPLET_ID, ATTR_DROPLET_NAME, ATTR_FEATURES,
+    ATTR_IPV4_ADDRESS, ATTR_IPV6_ADDRESS, ATTR_MEMORY, ATTR_REGION, ATTR_VCPUS,
+    ATTRIBUTION, CONF_DROPLETS, DATA_DIGITAL_OCEAN)
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/digital_ocean/switch.py b/homeassistant/components/digital_ocean/switch.py
index 9b5ddda34..bc4a6a29b 100644
--- a/homeassistant/components/digital_ocean/switch.py
+++ b/homeassistant/components/digital_ocean/switch.py
@@ -3,13 +3,14 @@ import logging
 
 import voluptuous as vol
 
-import homeassistant.helpers.config_validation as cv
-from homeassistant.components.switch import (SwitchDevice, PLATFORM_SCHEMA)
-from homeassistant.components.digital_ocean import (
-    CONF_DROPLETS, ATTR_CREATED_AT, ATTR_DROPLET_ID, ATTR_DROPLET_NAME,
-    ATTR_FEATURES, ATTR_IPV4_ADDRESS, ATTR_IPV6_ADDRESS, ATTR_MEMORY,
-    ATTR_REGION, ATTR_VCPUS, ATTRIBUTION, DATA_DIGITAL_OCEAN)
+from homeassistant.components.switch import PLATFORM_SCHEMA, SwitchDevice
 from homeassistant.const import ATTR_ATTRIBUTION
+import homeassistant.helpers.config_validation as cv
+
+from . import (
+    ATTR_CREATED_AT, ATTR_DROPLET_ID, ATTR_DROPLET_NAME, ATTR_FEATURES,
+    ATTR_IPV4_ADDRESS, ATTR_IPV6_ADDRESS, ATTR_MEMORY, ATTR_REGION, ATTR_VCPUS,
+    ATTRIBUTION, CONF_DROPLETS, DATA_DIGITAL_OCEAN)
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/doorbird/camera.py b/homeassistant/components/doorbird/camera.py
index e201837aa..272a3cb93 100644
--- a/homeassistant/components/doorbird/camera.py
+++ b/homeassistant/components/doorbird/camera.py
@@ -7,9 +7,10 @@ import aiohttp
 import async_timeout
 
 from homeassistant.components.camera import Camera
-from homeassistant.components.doorbird import DOMAIN as DOORBIRD_DOMAIN
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 
+from . import DOMAIN as DOORBIRD_DOMAIN
+
 DEPENDENCIES = ['doorbird']
 
 _CAMERA_LAST_VISITOR = "{} Last Ring"
diff --git a/homeassistant/components/doorbird/switch.py b/homeassistant/components/doorbird/switch.py
index 376713d4b..ba6f96660 100644
--- a/homeassistant/components/doorbird/switch.py
+++ b/homeassistant/components/doorbird/switch.py
@@ -2,9 +2,10 @@
 import datetime
 import logging
 
-from homeassistant.components.doorbird import DOMAIN as DOORBIRD_DOMAIN
 from homeassistant.components.switch import SwitchDevice
 
+from . import DOMAIN as DOORBIRD_DOMAIN
+
 DEPENDENCIES = ['doorbird']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/dovado/notify.py b/homeassistant/components/dovado/notify.py
index ea6ba2b45..59827529e 100644
--- a/homeassistant/components/dovado/notify.py
+++ b/homeassistant/components/dovado/notify.py
@@ -1,9 +1,10 @@
 """Support for SMS notifications from the Dovado router."""
 import logging
 
-from homeassistant.components.dovado import DOMAIN as DOVADO_DOMAIN
-from homeassistant.components.notify import BaseNotificationService, \
-    ATTR_TARGET
+from homeassistant.components.notify import (
+    ATTR_TARGET, BaseNotificationService)
+
+from . import DOMAIN as DOVADO_DOMAIN
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/dovado/sensor.py b/homeassistant/components/dovado/sensor.py
index eb0016ed2..56c4ee03a 100644
--- a/homeassistant/components/dovado/sensor.py
+++ b/homeassistant/components/dovado/sensor.py
@@ -1,16 +1,17 @@
 """Support for sensors from the Dovado router."""
+from datetime import timedelta
 import logging
 import re
-from datetime import timedelta
 
 import voluptuous as vol
 
-import homeassistant.helpers.config_validation as cv
-from homeassistant.components.dovado import DOMAIN as DOVADO_DOMAIN
 from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import CONF_SENSORS
+import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
+from . import DOMAIN as DOVADO_DOMAIN
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['dovado']
diff --git a/homeassistant/components/dyson/climate.py b/homeassistant/components/dyson/climate.py
index 09196a82b..3e5c976b1 100644
--- a/homeassistant/components/dyson/climate.py
+++ b/homeassistant/components/dyson/climate.py
@@ -6,12 +6,13 @@ https://home-assistant.io/components/climate.dyson/
 """
 import logging
 
-from homeassistant.components.dyson import DYSON_DEVICES
 from homeassistant.components.climate import ClimateDevice
 from homeassistant.components.climate.const import (
-    STATE_HEAT, STATE_COOL, STATE_IDLE,
-    SUPPORT_TARGET_TEMPERATURE, SUPPORT_FAN_MODE, SUPPORT_OPERATION_MODE)
-from homeassistant.const import TEMP_CELSIUS, ATTR_TEMPERATURE
+    STATE_COOL, STATE_HEAT, STATE_IDLE, SUPPORT_FAN_MODE,
+    SUPPORT_OPERATION_MODE, SUPPORT_TARGET_TEMPERATURE)
+from homeassistant.const import ATTR_TEMPERATURE, TEMP_CELSIUS
+
+from . import DYSON_DEVICES
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/dyson/fan.py b/homeassistant/components/dyson/fan.py
index ef5170211..743d301df 100644
--- a/homeassistant/components/dyson/fan.py
+++ b/homeassistant/components/dyson/fan.py
@@ -7,11 +7,12 @@ import logging
 
 import voluptuous as vol
 
-import homeassistant.helpers.config_validation as cv
-from homeassistant.components.dyson import DYSON_DEVICES
 from homeassistant.components.fan import (
     DOMAIN, SUPPORT_OSCILLATE, SUPPORT_SET_SPEED, FanEntity)
 from homeassistant.const import CONF_ENTITY_ID
+import homeassistant.helpers.config_validation as cv
+
+from . import DYSON_DEVICES
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/dyson/sensor.py b/homeassistant/components/dyson/sensor.py
index 53913d47b..ed8987f75 100644
--- a/homeassistant/components/dyson/sensor.py
+++ b/homeassistant/components/dyson/sensor.py
@@ -6,10 +6,11 @@ https://home-assistant.io/components/sensor.dyson/
 """
 import logging
 
-from homeassistant.components.dyson import DYSON_DEVICES
 from homeassistant.const import STATE_OFF, TEMP_CELSIUS
 from homeassistant.helpers.entity import Entity
 
+from . import DYSON_DEVICES
+
 DEPENDENCIES = ['dyson']
 
 SENSOR_UNITS = {
diff --git a/homeassistant/components/dyson/vacuum.py b/homeassistant/components/dyson/vacuum.py
index 3d6e23c20..7902cfa15 100644
--- a/homeassistant/components/dyson/vacuum.py
+++ b/homeassistant/components/dyson/vacuum.py
@@ -6,13 +6,14 @@ https://home-assistant.io/components/vacuum.dyson/
 """
 import logging
 
-from homeassistant.components.dyson import DYSON_DEVICES
 from homeassistant.components.vacuum import (
     SUPPORT_BATTERY, SUPPORT_FAN_SPEED, SUPPORT_PAUSE, SUPPORT_RETURN_HOME,
     SUPPORT_STATUS, SUPPORT_STOP, SUPPORT_TURN_OFF, SUPPORT_TURN_ON,
     VacuumDevice)
 from homeassistant.helpers.icon import icon_for_battery_level
 
+from . import DYSON_DEVICES
+
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_CLEAN_ID = 'clean_id'
diff --git a/homeassistant/components/ecoal_boiler/sensor.py b/homeassistant/components/ecoal_boiler/sensor.py
index 47ed2d6eb..ef8b39842 100644
--- a/homeassistant/components/ecoal_boiler/sensor.py
+++ b/homeassistant/components/ecoal_boiler/sensor.py
@@ -1,11 +1,11 @@
 """Allows reading temperatures from ecoal/esterownik.pl controller."""
 import logging
 
-from homeassistant.components.ecoal_boiler import (
-    DATA_ECOAL_BOILER, AVAILABLE_SENSORS, )
 from homeassistant.const import TEMP_CELSIUS
 from homeassistant.helpers.entity import Entity
 
+from . import AVAILABLE_SENSORS, DATA_ECOAL_BOILER
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['ecoal_boiler']
diff --git a/homeassistant/components/ecoal_boiler/switch.py b/homeassistant/components/ecoal_boiler/switch.py
index f11312519..db8759a03 100644
--- a/homeassistant/components/ecoal_boiler/switch.py
+++ b/homeassistant/components/ecoal_boiler/switch.py
@@ -3,8 +3,8 @@ import logging
 from typing import Optional
 
 from homeassistant.components.switch import SwitchDevice
-from homeassistant.components.ecoal_boiler import (
-    DATA_ECOAL_BOILER, AVAILABLE_PUMPS, )
+
+from . import AVAILABLE_PUMPS, DATA_ECOAL_BOILER
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/ecovacs/vacuum.py b/homeassistant/components/ecovacs/vacuum.py
index 9d2af7303..b9fe94f2b 100644
--- a/homeassistant/components/ecovacs/vacuum.py
+++ b/homeassistant/components/ecovacs/vacuum.py
@@ -2,13 +2,13 @@
 import logging
 
 from homeassistant.components.vacuum import (
-    VacuumDevice, SUPPORT_BATTERY, SUPPORT_RETURN_HOME, SUPPORT_CLEAN_SPOT,
-    SUPPORT_STATUS, SUPPORT_STOP, SUPPORT_TURN_OFF, SUPPORT_TURN_ON,
-    SUPPORT_LOCATE, SUPPORT_FAN_SPEED, SUPPORT_SEND_COMMAND, )
-from homeassistant.components.ecovacs import (
-    ECOVACS_DEVICES)
+    SUPPORT_BATTERY, SUPPORT_CLEAN_SPOT, SUPPORT_FAN_SPEED, SUPPORT_LOCATE,
+    SUPPORT_RETURN_HOME, SUPPORT_SEND_COMMAND, SUPPORT_STATUS, SUPPORT_STOP,
+    SUPPORT_TURN_OFF, SUPPORT_TURN_ON, VacuumDevice)
 from homeassistant.helpers.icon import icon_for_battery_level
 
+from . import ECOVACS_DEVICES
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['ecovacs']
diff --git a/homeassistant/components/edp_redy/sensor.py b/homeassistant/components/edp_redy/sensor.py
index 389ae77f3..b8f9c031c 100644
--- a/homeassistant/components/edp_redy/sensor.py
+++ b/homeassistant/components/edp_redy/sensor.py
@@ -1,10 +1,10 @@
 """Support for EDP re:dy sensors."""
 import logging
 
-from homeassistant.helpers.entity import Entity
 from homeassistant.const import POWER_WATT
+from homeassistant.helpers.entity import Entity
 
-from homeassistant.components.edp_redy import EdpRedyDevice, EDP_REDY
+from . import EDP_REDY, EdpRedyDevice
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/edp_redy/switch.py b/homeassistant/components/edp_redy/switch.py
index ad4ce8fe7..0c92f80cc 100644
--- a/homeassistant/components/edp_redy/switch.py
+++ b/homeassistant/components/edp_redy/switch.py
@@ -1,9 +1,10 @@
 """Support for EDP re:dy plugs/switches."""
 import logging
 
-from homeassistant.components.edp_redy import EdpRedyDevice, EDP_REDY
 from homeassistant.components.switch import SwitchDevice
 
+from . import EDP_REDY, EdpRedyDevice
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['edp_redy']
diff --git a/homeassistant/components/egardia/alarm_control_panel.py b/homeassistant/components/egardia/alarm_control_panel.py
index e202a46f9..7fc60d5fb 100644
--- a/homeassistant/components/egardia/alarm_control_panel.py
+++ b/homeassistant/components/egardia/alarm_control_panel.py
@@ -4,14 +4,15 @@ import logging
 import requests
 
 import homeassistant.components.alarm_control_panel as alarm
-from homeassistant.components.egardia import (
-    CONF_REPORT_SERVER_CODES, CONF_REPORT_SERVER_ENABLED,
-    CONF_REPORT_SERVER_PORT, EGARDIA_DEVICE, EGARDIA_SERVER,
-    REPORT_SERVER_CODES_IGNORE)
 from homeassistant.const import (
     STATE_ALARM_ARMED_AWAY, STATE_ALARM_ARMED_HOME, STATE_ALARM_ARMED_NIGHT,
     STATE_ALARM_DISARMED, STATE_ALARM_TRIGGERED)
 
+from . import (
+    CONF_REPORT_SERVER_CODES, CONF_REPORT_SERVER_ENABLED,
+    CONF_REPORT_SERVER_PORT, EGARDIA_DEVICE, EGARDIA_SERVER,
+    REPORT_SERVER_CODES_IGNORE)
+
 DEPENDENCIES = ['egardia']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/egardia/binary_sensor.py b/homeassistant/components/egardia/binary_sensor.py
index 74a048a86..d11894ae6 100644
--- a/homeassistant/components/egardia/binary_sensor.py
+++ b/homeassistant/components/egardia/binary_sensor.py
@@ -2,10 +2,10 @@
 import logging
 
 from homeassistant.components.binary_sensor import BinarySensorDevice
-from homeassistant.components.egardia import (
-    ATTR_DISCOVER_DEVICES, EGARDIA_DEVICE)
 from homeassistant.const import STATE_OFF, STATE_ON
 
+from . import ATTR_DISCOVER_DEVICES, EGARDIA_DEVICE
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['egardia']
diff --git a/homeassistant/components/eight_sleep/binary_sensor.py b/homeassistant/components/eight_sleep/binary_sensor.py
index 2a9cb19a3..a3ca27b57 100644
--- a/homeassistant/components/eight_sleep/binary_sensor.py
+++ b/homeassistant/components/eight_sleep/binary_sensor.py
@@ -2,8 +2,8 @@
 import logging
 
 from homeassistant.components.binary_sensor import BinarySensorDevice
-from homeassistant.components.eight_sleep import (
-    DATA_EIGHT, EightSleepHeatEntity, CONF_BINARY_SENSORS, NAME_MAP)
+
+from . import CONF_BINARY_SENSORS, DATA_EIGHT, NAME_MAP, EightSleepHeatEntity
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/eight_sleep/sensor.py b/homeassistant/components/eight_sleep/sensor.py
index 2bb03c8d4..a1ad93ec5 100644
--- a/homeassistant/components/eight_sleep/sensor.py
+++ b/homeassistant/components/eight_sleep/sensor.py
@@ -1,9 +1,9 @@
 """Support for Eight Sleep sensors."""
 import logging
 
-from homeassistant.components.eight_sleep import (
-    DATA_EIGHT, EightSleepHeatEntity, EightSleepUserEntity,
-    CONF_SENSORS, NAME_MAP)
+from . import (
+    CONF_SENSORS, DATA_EIGHT, NAME_MAP, EightSleepHeatEntity,
+    EightSleepUserEntity)
 
 DEPENDENCIES = ['eight_sleep']
 
diff --git a/homeassistant/components/elkm1/alarm_control_panel.py b/homeassistant/components/elkm1/alarm_control_panel.py
index 63b38c1d3..e9155dd17 100644
--- a/homeassistant/components/elkm1/alarm_control_panel.py
+++ b/homeassistant/components/elkm1/alarm_control_panel.py
@@ -1,16 +1,17 @@
 """Each ElkM1 area will be created as a separate alarm_control_panel."""
 import voluptuous as vol
+
 import homeassistant.components.alarm_control_panel as alarm
 from homeassistant.const import (
     ATTR_CODE, ATTR_ENTITY_ID, STATE_ALARM_ARMED_AWAY, STATE_ALARM_ARMED_HOME,
     STATE_ALARM_ARMED_NIGHT, STATE_ALARM_ARMING, STATE_ALARM_DISARMED,
     STATE_ALARM_PENDING, STATE_ALARM_TRIGGERED)
-from homeassistant.components.elkm1 import (
-    DOMAIN as ELK_DOMAIN, create_elk_entities, ElkEntity)
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.dispatcher import (
     async_dispatcher_connect, async_dispatcher_send)
 
+from . import DOMAIN as ELK_DOMAIN, ElkEntity, create_elk_entities
+
 DEPENDENCIES = [ELK_DOMAIN]
 
 SIGNAL_ARM_ENTITY = 'elkm1_arm'
diff --git a/homeassistant/components/elkm1/climate.py b/homeassistant/components/elkm1/climate.py
index 72f93b541..93e4aa66b 100644
--- a/homeassistant/components/elkm1/climate.py
+++ b/homeassistant/components/elkm1/climate.py
@@ -1,14 +1,13 @@
 """Support for control of Elk-M1 connected thermostats."""
 from homeassistant.components.climate import ClimateDevice
 from homeassistant.components.climate.const import (
-    ATTR_TARGET_TEMP_HIGH, ATTR_TARGET_TEMP_LOW, STATE_AUTO,
-    STATE_COOL, STATE_FAN_ONLY, STATE_HEAT, STATE_IDLE, SUPPORT_AUX_HEAT,
-    SUPPORT_FAN_MODE, SUPPORT_OPERATION_MODE, SUPPORT_TARGET_TEMPERATURE_HIGH,
+    ATTR_TARGET_TEMP_HIGH, ATTR_TARGET_TEMP_LOW, STATE_AUTO, STATE_COOL,
+    STATE_FAN_ONLY, STATE_HEAT, STATE_IDLE, SUPPORT_AUX_HEAT, SUPPORT_FAN_MODE,
+    SUPPORT_OPERATION_MODE, SUPPORT_TARGET_TEMPERATURE_HIGH,
     SUPPORT_TARGET_TEMPERATURE_LOW)
-from homeassistant.components.elkm1 import (
-    DOMAIN as ELK_DOMAIN, ElkEntity, create_elk_entities)
-from homeassistant.const import (
-    STATE_ON, PRECISION_WHOLE)
+from homeassistant.const import PRECISION_WHOLE, STATE_ON
+
+from . import DOMAIN as ELK_DOMAIN, ElkEntity, create_elk_entities
 
 DEPENDENCIES = [ELK_DOMAIN]
 
diff --git a/homeassistant/components/elkm1/light.py b/homeassistant/components/elkm1/light.py
index 3a282595d..fe84ab3f2 100644
--- a/homeassistant/components/elkm1/light.py
+++ b/homeassistant/components/elkm1/light.py
@@ -1,8 +1,8 @@
 """Support for control of ElkM1 lighting (X10, UPB, etc)."""
 from homeassistant.components.light import (
     ATTR_BRIGHTNESS, SUPPORT_BRIGHTNESS, Light)
-from homeassistant.components.elkm1 import (
-    DOMAIN as ELK_DOMAIN, ElkEntity, create_elk_entities)
+
+from . import DOMAIN as ELK_DOMAIN, ElkEntity, create_elk_entities
 
 DEPENDENCIES = [ELK_DOMAIN]
 
diff --git a/homeassistant/components/elkm1/scene.py b/homeassistant/components/elkm1/scene.py
index c8583b1d8..1d08f4cf9 100644
--- a/homeassistant/components/elkm1/scene.py
+++ b/homeassistant/components/elkm1/scene.py
@@ -1,8 +1,8 @@
 """Support for control of ElkM1 tasks ("macros")."""
-from homeassistant.components.elkm1 import (
-    DOMAIN as ELK_DOMAIN, ElkEntity, create_elk_entities)
 from homeassistant.components.scene import Scene
 
+from . import DOMAIN as ELK_DOMAIN, ElkEntity, create_elk_entities
+
 DEPENDENCIES = [ELK_DOMAIN]
 
 
diff --git a/homeassistant/components/elkm1/sensor.py b/homeassistant/components/elkm1/sensor.py
index 63da6ea53..da27a3ac4 100644
--- a/homeassistant/components/elkm1/sensor.py
+++ b/homeassistant/components/elkm1/sensor.py
@@ -1,6 +1,5 @@
 """Support for control of ElkM1 sensors."""
-from homeassistant.components.elkm1 import (
-    DOMAIN as ELK_DOMAIN, create_elk_entities, ElkEntity)
+from . import DOMAIN as ELK_DOMAIN, ElkEntity, create_elk_entities
 
 DEPENDENCIES = [ELK_DOMAIN]
 
diff --git a/homeassistant/components/elkm1/switch.py b/homeassistant/components/elkm1/switch.py
index 7badd6ee5..740a29658 100644
--- a/homeassistant/components/elkm1/switch.py
+++ b/homeassistant/components/elkm1/switch.py
@@ -1,8 +1,8 @@
 """Support for control of ElkM1 outputs (relays)."""
-from homeassistant.components.elkm1 import (
-    DOMAIN as ELK_DOMAIN, ElkEntity, create_elk_entities)
 from homeassistant.components.switch import SwitchDevice
 
+from . import DOMAIN as ELK_DOMAIN, ElkEntity, create_elk_entities
+
 DEPENDENCIES = [ELK_DOMAIN]
 
 
diff --git a/homeassistant/components/emulated_roku/binding.py b/homeassistant/components/emulated_roku/binding.py
index cd4256028..9dfb58a5e 100644
--- a/homeassistant/components/emulated_roku/binding.py
+++ b/homeassistant/components/emulated_roku/binding.py
@@ -5,7 +5,7 @@ from homeassistant.const import (
     EVENT_HOMEASSISTANT_START, EVENT_HOMEASSISTANT_STOP)
 from homeassistant.core import CoreState, EventOrigin
 
-LOGGER = logging.getLogger('homeassistant.components.emulated_roku')
+LOGGER = logging.getLogger('.')
 
 EVENT_ROKU_COMMAND = 'roku_command'
 
diff --git a/homeassistant/components/envisalink/alarm_control_panel.py b/homeassistant/components/envisalink/alarm_control_panel.py
index a4cc5864f..44874c6d5 100644
--- a/homeassistant/components/envisalink/alarm_control_panel.py
+++ b/homeassistant/components/envisalink/alarm_control_panel.py
@@ -3,16 +3,18 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.core import callback
-from homeassistant.helpers.dispatcher import async_dispatcher_connect
 import homeassistant.components.alarm_control_panel as alarm
-import homeassistant.helpers.config_validation as cv
-from homeassistant.components.envisalink import (
-    DATA_EVL, EnvisalinkDevice, PARTITION_SCHEMA, CONF_CODE, CONF_PANIC,
-    CONF_PARTITIONNAME, SIGNAL_KEYPAD_UPDATE, SIGNAL_PARTITION_UPDATE)
 from homeassistant.const import (
-    STATE_ALARM_ARMED_AWAY, STATE_ALARM_ARMED_HOME, STATE_ALARM_DISARMED,
-    STATE_UNKNOWN, STATE_ALARM_TRIGGERED, STATE_ALARM_PENDING, ATTR_ENTITY_ID)
+    ATTR_ENTITY_ID, STATE_ALARM_ARMED_AWAY, STATE_ALARM_ARMED_HOME,
+    STATE_ALARM_DISARMED, STATE_ALARM_PENDING, STATE_ALARM_TRIGGERED,
+    STATE_UNKNOWN)
+from homeassistant.core import callback
+import homeassistant.helpers.config_validation as cv
+from homeassistant.helpers.dispatcher import async_dispatcher_connect
+
+from . import (
+    CONF_CODE, CONF_PANIC, CONF_PARTITIONNAME, DATA_EVL, PARTITION_SCHEMA,
+    SIGNAL_KEYPAD_UPDATE, SIGNAL_PARTITION_UPDATE, EnvisalinkDevice)
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/envisalink/binary_sensor.py b/homeassistant/components/envisalink/binary_sensor.py
index 26b54e16c..267bba8cd 100644
--- a/homeassistant/components/envisalink/binary_sensor.py
+++ b/homeassistant/components/envisalink/binary_sensor.py
@@ -1,16 +1,17 @@
 """Support for Envisalink zone states- represented as binary sensors."""
-import logging
 import datetime
+import logging
 
+from homeassistant.components.binary_sensor import BinarySensorDevice
+from homeassistant.const import ATTR_LAST_TRIP_TIME
 from homeassistant.core import callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
-from homeassistant.components.binary_sensor import BinarySensorDevice
-from homeassistant.components.envisalink import (
-    DATA_EVL, ZONE_SCHEMA, CONF_ZONENAME, CONF_ZONETYPE, EnvisalinkDevice,
-    SIGNAL_ZONE_UPDATE)
-from homeassistant.const import ATTR_LAST_TRIP_TIME
 from homeassistant.util import dt as dt_util
 
+from . import (
+    CONF_ZONENAME, CONF_ZONETYPE, DATA_EVL, SIGNAL_ZONE_UPDATE, ZONE_SCHEMA,
+    EnvisalinkDevice)
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['envisalink']
diff --git a/homeassistant/components/envisalink/sensor.py b/homeassistant/components/envisalink/sensor.py
index cc6a8b872..67a601b02 100644
--- a/homeassistant/components/envisalink/sensor.py
+++ b/homeassistant/components/envisalink/sensor.py
@@ -3,11 +3,12 @@ import logging
 
 from homeassistant.core import callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
-from homeassistant.components.envisalink import (
-    DATA_EVL, PARTITION_SCHEMA, CONF_PARTITIONNAME, EnvisalinkDevice,
-    SIGNAL_KEYPAD_UPDATE, SIGNAL_PARTITION_UPDATE)
 from homeassistant.helpers.entity import Entity
 
+from . import (
+    CONF_PARTITIONNAME, DATA_EVL, PARTITION_SCHEMA, SIGNAL_KEYPAD_UPDATE,
+    SIGNAL_PARTITION_UPDATE, EnvisalinkDevice)
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['envisalink']
diff --git a/homeassistant/components/esphome/binary_sensor.py b/homeassistant/components/esphome/binary_sensor.py
index 4796df636..2db2f209f 100644
--- a/homeassistant/components/esphome/binary_sensor.py
+++ b/homeassistant/components/esphome/binary_sensor.py
@@ -1,11 +1,10 @@
 """Support for ESPHome binary sensors."""
 import logging
-
 from typing import TYPE_CHECKING, Optional
 
 from homeassistant.components.binary_sensor import BinarySensorDevice
-from homeassistant.components.esphome import EsphomeEntity, \
-    platform_async_setup_entry
+
+from . import EsphomeEntity, platform_async_setup_entry
 
 if TYPE_CHECKING:
     # pylint: disable=unused-import
diff --git a/homeassistant/components/esphome/cover.py b/homeassistant/components/esphome/cover.py
index 14fce3fb4..d86c40e62 100644
--- a/homeassistant/components/esphome/cover.py
+++ b/homeassistant/components/esphome/cover.py
@@ -1,15 +1,14 @@
 """Support for ESPHome covers."""
 import logging
-
 from typing import TYPE_CHECKING, Optional
 
-from homeassistant.components.cover import CoverDevice, SUPPORT_CLOSE, \
-    SUPPORT_OPEN, SUPPORT_STOP
-from homeassistant.components.esphome import EsphomeEntity, \
-    platform_async_setup_entry
+from homeassistant.components.cover import (
+    SUPPORT_CLOSE, SUPPORT_OPEN, SUPPORT_STOP, CoverDevice)
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.helpers.typing import HomeAssistantType
 
+from . import EsphomeEntity, platform_async_setup_entry
+
 if TYPE_CHECKING:
     # pylint: disable=unused-import
     from aioesphomeapi import CoverInfo, CoverState  # noqa
diff --git a/homeassistant/components/esphome/fan.py b/homeassistant/components/esphome/fan.py
index 49e240154..05f18cb01 100644
--- a/homeassistant/components/esphome/fan.py
+++ b/homeassistant/components/esphome/fan.py
@@ -1,14 +1,15 @@
 """Support for ESPHome fans."""
 import logging
-from typing import List, Optional, TYPE_CHECKING
+from typing import TYPE_CHECKING, List, Optional
 
-from homeassistant.components.esphome import EsphomeEntity, \
-    platform_async_setup_entry
-from homeassistant.components.fan import FanEntity, SPEED_HIGH, SPEED_LOW, \
-    SPEED_MEDIUM, SUPPORT_OSCILLATE, SUPPORT_SET_SPEED, SPEED_OFF
+from homeassistant.components.fan import (
+    SPEED_HIGH, SPEED_LOW, SPEED_MEDIUM, SPEED_OFF, SUPPORT_OSCILLATE,
+    SUPPORT_SET_SPEED, FanEntity)
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.helpers.typing import HomeAssistantType
 
+from . import EsphomeEntity, platform_async_setup_entry
+
 if TYPE_CHECKING:
     # pylint: disable=unused-import
     from aioesphomeapi import FanInfo, FanState  # noqa
diff --git a/homeassistant/components/esphome/light.py b/homeassistant/components/esphome/light.py
index 3b0889ede..c84c50010 100644
--- a/homeassistant/components/esphome/light.py
+++ b/homeassistant/components/esphome/light.py
@@ -1,18 +1,18 @@
 """Support for ESPHome lights."""
 import logging
-from typing import Optional, List, Tuple, TYPE_CHECKING
+from typing import TYPE_CHECKING, List, Optional, Tuple
 
-from homeassistant.components.esphome import EsphomeEntity, \
-    platform_async_setup_entry
-from homeassistant.components.light import Light, SUPPORT_FLASH, \
-    SUPPORT_BRIGHTNESS, SUPPORT_TRANSITION, SUPPORT_COLOR, \
-    SUPPORT_WHITE_VALUE, SUPPORT_COLOR_TEMP, SUPPORT_EFFECT, ATTR_HS_COLOR, \
-    ATTR_FLASH, ATTR_TRANSITION, ATTR_BRIGHTNESS, ATTR_COLOR_TEMP, \
-    ATTR_EFFECT, ATTR_WHITE_VALUE, FLASH_SHORT, FLASH_LONG
+from homeassistant.components.light import (
+    ATTR_BRIGHTNESS, ATTR_COLOR_TEMP, ATTR_EFFECT, ATTR_FLASH, ATTR_HS_COLOR,
+    ATTR_TRANSITION, ATTR_WHITE_VALUE, FLASH_LONG, FLASH_SHORT,
+    SUPPORT_BRIGHTNESS, SUPPORT_COLOR, SUPPORT_COLOR_TEMP, SUPPORT_EFFECT,
+    SUPPORT_FLASH, SUPPORT_TRANSITION, SUPPORT_WHITE_VALUE, Light)
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.helpers.typing import HomeAssistantType
 import homeassistant.util.color as color_util
 
+from . import EsphomeEntity, platform_async_setup_entry
+
 if TYPE_CHECKING:
     # pylint: disable=unused-import
     from aioesphomeapi import LightInfo, LightState  # noqa
diff --git a/homeassistant/components/esphome/sensor.py b/homeassistant/components/esphome/sensor.py
index f776ea468..e4fb7ef82 100644
--- a/homeassistant/components/esphome/sensor.py
+++ b/homeassistant/components/esphome/sensor.py
@@ -1,13 +1,13 @@
 """Support for esphome sensors."""
 import logging
 import math
-from typing import Optional, TYPE_CHECKING
+from typing import TYPE_CHECKING, Optional
 
-from homeassistant.components.esphome import EsphomeEntity, \
-    platform_async_setup_entry
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.helpers.typing import HomeAssistantType
 
+from . import EsphomeEntity, platform_async_setup_entry
+
 if TYPE_CHECKING:
     # pylint: disable=unused-import
     from aioesphomeapi import ( # noqa
diff --git a/homeassistant/components/esphome/switch.py b/homeassistant/components/esphome/switch.py
index 4bf4b416b..e5a9d0cf4 100644
--- a/homeassistant/components/esphome/switch.py
+++ b/homeassistant/components/esphome/switch.py
@@ -1,14 +1,13 @@
 """Support for ESPHome switches."""
 import logging
-
 from typing import TYPE_CHECKING, Optional
 
-from homeassistant.components.esphome import EsphomeEntity, \
-    platform_async_setup_entry
 from homeassistant.components.switch import SwitchDevice
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.helpers.typing import HomeAssistantType
 
+from . import EsphomeEntity, platform_async_setup_entry
+
 if TYPE_CHECKING:
     # pylint: disable=unused-import
     from aioesphomeapi import SwitchInfo, SwitchState  # noqa
diff --git a/homeassistant/components/evohome/climate.py b/homeassistant/components/evohome/climate.py
index 955b82e37..eea34e070 100644
--- a/homeassistant/components/evohome/climate.py
+++ b/homeassistant/components/evohome/climate.py
@@ -6,30 +6,18 @@ from requests.exceptions import HTTPError
 
 from homeassistant.components.climate import ClimateDevice
 from homeassistant.components.climate.const import (
-    STATE_AUTO, STATE_ECO, STATE_MANUAL,
-    SUPPORT_AWAY_MODE,
-    SUPPORT_ON_OFF,
-    SUPPORT_OPERATION_MODE,
-    SUPPORT_TARGET_TEMPERATURE,
-)
-from homeassistant.components.evohome import (
-    DATA_EVOHOME, DISPATCHER_EVOHOME,
-    CONF_LOCATION_IDX, SCAN_INTERVAL_DEFAULT,
-    EVO_PARENT, EVO_CHILD,
-    GWS, TCS,
-)
+    STATE_AUTO, STATE_ECO, STATE_MANUAL, SUPPORT_AWAY_MODE, SUPPORT_ON_OFF,
+    SUPPORT_OPERATION_MODE, SUPPORT_TARGET_TEMPERATURE)
 from homeassistant.const import (
-    CONF_SCAN_INTERVAL,
-    HTTP_TOO_MANY_REQUESTS,
-    PRECISION_HALVES,
-    STATE_OFF,
-    TEMP_CELSIUS
-)
+    CONF_SCAN_INTERVAL, HTTP_TOO_MANY_REQUESTS, PRECISION_HALVES, STATE_OFF,
+    TEMP_CELSIUS)
 from homeassistant.core import callback
 from homeassistant.helpers.dispatcher import (
-    dispatcher_send,
-    async_dispatcher_connect
-)
+    async_dispatcher_connect, dispatcher_send)
+
+from . import (
+    CONF_LOCATION_IDX, DATA_EVOHOME, DISPATCHER_EVOHOME, EVO_CHILD, EVO_PARENT,
+    GWS, SCAN_INTERVAL_DEFAULT, TCS)
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/fan/demo.py b/homeassistant/components/fan/demo.py
index 840196c8b..e67fbef65 100644
--- a/homeassistant/components/fan/demo.py
+++ b/homeassistant/components/fan/demo.py
@@ -4,11 +4,12 @@ Demo fan platform that has a fake fan.
 For more details about this platform, please refer to the documentation
 https://home-assistant.io/components/demo/
 """
-from homeassistant.components.fan import (SPEED_LOW, SPEED_MEDIUM, SPEED_HIGH,
-                                          FanEntity, SUPPORT_SET_SPEED,
-                                          SUPPORT_OSCILLATE, SUPPORT_DIRECTION)
 from homeassistant.const import STATE_OFF
 
+from . import (
+    SPEED_HIGH, SPEED_LOW, SPEED_MEDIUM, SUPPORT_DIRECTION, SUPPORT_OSCILLATE,
+    SUPPORT_SET_SPEED, FanEntity)
+
 FULL_SUPPORT = SUPPORT_SET_SPEED | SUPPORT_OSCILLATE | SUPPORT_DIRECTION
 LIMITED_SUPPORT = SUPPORT_SET_SPEED
 
diff --git a/homeassistant/components/fastdotcom/sensor.py b/homeassistant/components/fastdotcom/sensor.py
index 0f17179f9..37fc0815d 100644
--- a/homeassistant/components/fastdotcom/sensor.py
+++ b/homeassistant/components/fastdotcom/sensor.py
@@ -1,12 +1,12 @@
 """Support for Fast.com internet speed testing sensor."""
 import logging
 
-from homeassistant.components.fastdotcom import DOMAIN as FASTDOTCOM_DOMAIN, \
-    DATA_UPDATED
 from homeassistant.core import callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.helpers.restore_state import RestoreEntity
 
+from . import DATA_UPDATED, DOMAIN as FASTDOTCOM_DOMAIN
+
 DEPENDENCIES = ['fastdotcom']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/ffmpeg/camera.py b/homeassistant/components/ffmpeg/camera.py
index db9e73f3e..4272a3d60 100644
--- a/homeassistant/components/ffmpeg/camera.py
+++ b/homeassistant/components/ffmpeg/camera.py
@@ -9,13 +9,12 @@ import logging
 
 import voluptuous as vol
 
+from homeassistant.components.camera import PLATFORM_SCHEMA, Camera
 from homeassistant.const import CONF_NAME
-from homeassistant.components.camera import Camera, PLATFORM_SCHEMA
-from homeassistant.components.ffmpeg import (
-    DATA_FFMPEG, CONF_INPUT, CONF_EXTRA_ARGUMENTS)
+from homeassistant.helpers.aiohttp_client import async_aiohttp_proxy_stream
 import homeassistant.helpers.config_validation as cv
-from homeassistant.helpers.aiohttp_client import (
-    async_aiohttp_proxy_stream)
+
+from . import CONF_EXTRA_ARGUMENTS, CONF_INPUT, DATA_FFMPEG
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/fibaro/binary_sensor.py b/homeassistant/components/fibaro/binary_sensor.py
index 2c2d9c30a..f71a5f366 100644
--- a/homeassistant/components/fibaro/binary_sensor.py
+++ b/homeassistant/components/fibaro/binary_sensor.py
@@ -2,10 +2,10 @@
 import logging
 
 from homeassistant.components.binary_sensor import (
-    BinarySensorDevice, ENTITY_ID_FORMAT)
-from homeassistant.components.fibaro import (
-    FIBARO_DEVICES, FibaroDevice)
-from homeassistant.const import (CONF_DEVICE_CLASS, CONF_ICON)
+    ENTITY_ID_FORMAT, BinarySensorDevice)
+from homeassistant.const import CONF_DEVICE_CLASS, CONF_ICON
+
+from . import FIBARO_DEVICES, FibaroDevice
 
 DEPENDENCIES = ['fibaro']
 
diff --git a/homeassistant/components/fibaro/cover.py b/homeassistant/components/fibaro/cover.py
index aa34fcc36..0f5cc32bc 100644
--- a/homeassistant/components/fibaro/cover.py
+++ b/homeassistant/components/fibaro/cover.py
@@ -2,9 +2,9 @@
 import logging
 
 from homeassistant.components.cover import (
-    CoverDevice, ENTITY_ID_FORMAT, ATTR_POSITION, ATTR_TILT_POSITION)
-from homeassistant.components.fibaro import (
-    FIBARO_DEVICES, FibaroDevice)
+    ATTR_POSITION, ATTR_TILT_POSITION, ENTITY_ID_FORMAT, CoverDevice)
+
+from . import FIBARO_DEVICES, FibaroDevice
 
 DEPENDENCIES = ['fibaro']
 
diff --git a/homeassistant/components/fibaro/light.py b/homeassistant/components/fibaro/light.py
index 5ee3e83b9..600b566b3 100644
--- a/homeassistant/components/fibaro/light.py
+++ b/homeassistant/components/fibaro/light.py
@@ -1,18 +1,17 @@
 """Support for Fibaro lights."""
-import logging
 import asyncio
 from functools import partial
+import logging
 
-from homeassistant.const import (
-    CONF_WHITE_VALUE)
-from homeassistant.components.fibaro import (
-    FIBARO_DEVICES, FibaroDevice,
-    CONF_DIMMING, CONF_COLOR, CONF_RESET_COLOR)
 from homeassistant.components.light import (
     ATTR_BRIGHTNESS, ATTR_HS_COLOR, ATTR_WHITE_VALUE, ENTITY_ID_FORMAT,
     SUPPORT_BRIGHTNESS, SUPPORT_COLOR, SUPPORT_WHITE_VALUE, Light)
+from homeassistant.const import CONF_WHITE_VALUE
 import homeassistant.util.color as color_util
 
+from . import (
+    CONF_COLOR, CONF_DIMMING, CONF_RESET_COLOR, FIBARO_DEVICES, FibaroDevice)
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['fibaro']
diff --git a/homeassistant/components/fibaro/scene.py b/homeassistant/components/fibaro/scene.py
index 620f095b7..93f0cd5b6 100644
--- a/homeassistant/components/fibaro/scene.py
+++ b/homeassistant/components/fibaro/scene.py
@@ -1,10 +1,9 @@
 """Support for Fibaro scenes."""
 import logging
 
-from homeassistant.components.scene import (
-    Scene)
-from homeassistant.components.fibaro import (
-    FIBARO_DEVICES, FibaroDevice)
+from homeassistant.components.scene import Scene
+
+from . import FIBARO_DEVICES, FibaroDevice
 
 DEPENDENCIES = ['fibaro']
 
diff --git a/homeassistant/components/fibaro/sensor.py b/homeassistant/components/fibaro/sensor.py
index 01452d8b3..20a37fd3c 100644
--- a/homeassistant/components/fibaro/sensor.py
+++ b/homeassistant/components/fibaro/sensor.py
@@ -1,13 +1,13 @@
 """Support for Fibaro sensors."""
 import logging
 
-from homeassistant.const import (
-    DEVICE_CLASS_TEMPERATURE, DEVICE_CLASS_HUMIDITY,
-    DEVICE_CLASS_ILLUMINANCE, TEMP_CELSIUS, TEMP_FAHRENHEIT)
-from homeassistant.helpers.entity import Entity
 from homeassistant.components.sensor import ENTITY_ID_FORMAT
-from homeassistant.components.fibaro import (
-    FIBARO_DEVICES, FibaroDevice)
+from homeassistant.const import (
+    DEVICE_CLASS_HUMIDITY, DEVICE_CLASS_ILLUMINANCE, DEVICE_CLASS_TEMPERATURE,
+    TEMP_CELSIUS, TEMP_FAHRENHEIT)
+from homeassistant.helpers.entity import Entity
+
+from . import FIBARO_DEVICES, FibaroDevice
 
 SENSOR_TYPES = {
     'com.fibaro.temperatureSensor':
diff --git a/homeassistant/components/fibaro/switch.py b/homeassistant/components/fibaro/switch.py
index 04b8aba1c..024531f62 100644
--- a/homeassistant/components/fibaro/switch.py
+++ b/homeassistant/components/fibaro/switch.py
@@ -1,10 +1,10 @@
 """Support for Fibaro switches."""
 import logging
 
-from homeassistant.util import convert
 from homeassistant.components.switch import ENTITY_ID_FORMAT, SwitchDevice
-from homeassistant.components.fibaro import (
-    FIBARO_DEVICES, FibaroDevice)
+from homeassistant.util import convert
+
+from . import FIBARO_DEVICES, FibaroDevice
 
 DEPENDENCIES = ['fibaro']
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/freebox/device_tracker.py b/homeassistant/components/freebox/device_tracker.py
index fb94f7f56..5418c1c61 100644
--- a/homeassistant/components/freebox/device_tracker.py
+++ b/homeassistant/components/freebox/device_tracker.py
@@ -3,7 +3,8 @@ from collections import namedtuple
 import logging
 
 from homeassistant.components.device_tracker import DeviceScanner
-from homeassistant.components.freebox import DATA_FREEBOX
+
+from . import DATA_FREEBOX
 
 DEPENDENCIES = ['freebox']
 
diff --git a/homeassistant/components/freebox/sensor.py b/homeassistant/components/freebox/sensor.py
index 49e68dc2c..328665ab5 100644
--- a/homeassistant/components/freebox/sensor.py
+++ b/homeassistant/components/freebox/sensor.py
@@ -1,9 +1,10 @@
 """Support for Freebox devices (Freebox v6 and Freebox mini 4K)."""
 import logging
 
-from homeassistant.components.freebox import DATA_FREEBOX
 from homeassistant.helpers.entity import Entity
 
+from . import DATA_FREEBOX
+
 DEPENDENCIES = ['freebox']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/fritzbox/binary_sensor.py b/homeassistant/components/fritzbox/binary_sensor.py
index c68c79f1e..65578c571 100644
--- a/homeassistant/components/fritzbox/binary_sensor.py
+++ b/homeassistant/components/fritzbox/binary_sensor.py
@@ -4,7 +4,8 @@ import logging
 import requests
 
 from homeassistant.components.binary_sensor import BinarySensorDevice
-from homeassistant.components.fritzbox import DOMAIN as FRITZBOX_DOMAIN
+
+from . import DOMAIN as FRITZBOX_DOMAIN
 
 DEPENDENCIES = ['fritzbox']
 
diff --git a/homeassistant/components/fritzbox/climate.py b/homeassistant/components/fritzbox/climate.py
index e8c20061b..e2c9be833 100644
--- a/homeassistant/components/fritzbox/climate.py
+++ b/homeassistant/components/fritzbox/climate.py
@@ -3,19 +3,19 @@ import logging
 
 import requests
 
-from homeassistant.components.fritzbox import DOMAIN as FRITZBOX_DOMAIN
-from homeassistant.components.fritzbox import (
-    ATTR_STATE_DEVICE_LOCKED, ATTR_STATE_BATTERY_LOW, ATTR_STATE_HOLIDAY_MODE,
-    ATTR_STATE_LOCKED, ATTR_STATE_SUMMER_MODE,
-    ATTR_STATE_WINDOW_OPEN)
 from homeassistant.components.climate import ClimateDevice
 from homeassistant.components.climate.const import (
     ATTR_OPERATION_MODE, STATE_ECO, STATE_HEAT, STATE_MANUAL,
-    SUPPORT_OPERATION_MODE,
-    SUPPORT_TARGET_TEMPERATURE)
+    SUPPORT_OPERATION_MODE, SUPPORT_TARGET_TEMPERATURE)
 from homeassistant.const import (
-    ATTR_BATTERY_LEVEL, ATTR_TEMPERATURE, PRECISION_HALVES, TEMP_CELSIUS,
-    STATE_OFF, STATE_ON)
+    ATTR_BATTERY_LEVEL, ATTR_TEMPERATURE, PRECISION_HALVES, STATE_OFF,
+    STATE_ON, TEMP_CELSIUS)
+
+from . import (
+    ATTR_STATE_BATTERY_LOW, ATTR_STATE_DEVICE_LOCKED, ATTR_STATE_HOLIDAY_MODE,
+    ATTR_STATE_LOCKED, ATTR_STATE_SUMMER_MODE, ATTR_STATE_WINDOW_OPEN,
+    DOMAIN as FRITZBOX_DOMAIN)
+
 DEPENDENCIES = ['fritzbox']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/fritzbox/sensor.py b/homeassistant/components/fritzbox/sensor.py
index a1736fb98..7309f8cc6 100644
--- a/homeassistant/components/fritzbox/sensor.py
+++ b/homeassistant/components/fritzbox/sensor.py
@@ -3,11 +3,11 @@ import logging
 
 import requests
 
-from homeassistant.components.fritzbox import DOMAIN as FRITZBOX_DOMAIN
-from homeassistant.components.fritzbox import (
-    ATTR_STATE_DEVICE_LOCKED, ATTR_STATE_LOCKED)
-from homeassistant.helpers.entity import Entity
 from homeassistant.const import TEMP_CELSIUS
+from homeassistant.helpers.entity import Entity
+
+from . import (
+    ATTR_STATE_DEVICE_LOCKED, ATTR_STATE_LOCKED, DOMAIN as FRITZBOX_DOMAIN)
 
 DEPENDENCIES = ['fritzbox']
 
diff --git a/homeassistant/components/fritzbox/switch.py b/homeassistant/components/fritzbox/switch.py
index 617c49020..e227cdaef 100644
--- a/homeassistant/components/fritzbox/switch.py
+++ b/homeassistant/components/fritzbox/switch.py
@@ -3,12 +3,12 @@ import logging
 
 import requests
 
-from homeassistant.components.fritzbox import DOMAIN as FRITZBOX_DOMAIN
-from homeassistant.components.fritzbox import (
-    ATTR_STATE_DEVICE_LOCKED, ATTR_STATE_LOCKED)
 from homeassistant.components.switch import SwitchDevice
-from homeassistant.const import (ATTR_TEMPERATURE, TEMP_CELSIUS,
-                                 ENERGY_KILO_WATT_HOUR)
+from homeassistant.const import (
+    ATTR_TEMPERATURE, ENERGY_KILO_WATT_HOUR, TEMP_CELSIUS)
+
+from . import (
+    ATTR_STATE_DEVICE_LOCKED, ATTR_STATE_LOCKED, DOMAIN as FRITZBOX_DOMAIN)
 
 DEPENDENCIES = ['fritzbox']
 
diff --git a/homeassistant/components/gc100/binary_sensor.py b/homeassistant/components/gc100/binary_sensor.py
index 27466f64c..ec69d1eec 100644
--- a/homeassistant/components/gc100/binary_sensor.py
+++ b/homeassistant/components/gc100/binary_sensor.py
@@ -6,12 +6,13 @@ https://home-assistant.io/components/binary_sensor.gc100/
 """
 import voluptuous as vol
 
-from homeassistant.components.gc100 import DATA_GC100, CONF_PORTS
 from homeassistant.components.binary_sensor import (
-    BinarySensorDevice, PLATFORM_SCHEMA)
+    PLATFORM_SCHEMA, BinarySensorDevice)
 from homeassistant.const import DEVICE_DEFAULT_NAME
 import homeassistant.helpers.config_validation as cv
 
+from . import CONF_PORTS, DATA_GC100
+
 DEPENDENCIES = ['gc100']
 
 _SENSORS_SCHEMA = vol.Schema({
diff --git a/homeassistant/components/gc100/switch.py b/homeassistant/components/gc100/switch.py
index 2a8e7eaa8..94c824fa5 100644
--- a/homeassistant/components/gc100/switch.py
+++ b/homeassistant/components/gc100/switch.py
@@ -6,11 +6,12 @@ https://home-assistant.io/components/switch.gc100/
 """
 import voluptuous as vol
 
-import homeassistant.helpers.config_validation as cv
-from homeassistant.components.gc100 import DATA_GC100, CONF_PORTS
-from homeassistant.components.switch import (PLATFORM_SCHEMA)
-from homeassistant.helpers.entity import ToggleEntity
+from homeassistant.components.switch import PLATFORM_SCHEMA
 from homeassistant.const import DEVICE_DEFAULT_NAME
+import homeassistant.helpers.config_validation as cv
+from homeassistant.helpers.entity import ToggleEntity
+
+from . import CONF_PORTS, DATA_GC100
 
 DEPENDENCIES = ['gc100']
 
diff --git a/homeassistant/components/geo_location/demo.py b/homeassistant/components/geo_location/demo.py
index 523e125a7..d63280ce6 100644
--- a/homeassistant/components/geo_location/demo.py
+++ b/homeassistant/components/geo_location/demo.py
@@ -5,9 +5,10 @@ from math import cos, pi, radians, sin
 import random
 from typing import Optional
 
-from homeassistant.components.geo_location import GeolocationEvent
 from homeassistant.helpers.event import track_time_interval
 
+from . import GeolocationEvent
+
 _LOGGER = logging.getLogger(__name__)
 
 AVG_KM_PER_DEGREE = 111.0
diff --git a/homeassistant/components/geofency/device_tracker.py b/homeassistant/components/geofency/device_tracker.py
index 51201240c..5e7b82918 100644
--- a/homeassistant/components/geofency/device_tracker.py
+++ b/homeassistant/components/geofency/device_tracker.py
@@ -8,10 +8,10 @@ import logging
 
 from homeassistant.components.device_tracker import (
     DOMAIN as DEVICE_TRACKER_DOMAIN)
-from homeassistant.components.geofency import (
-    DOMAIN as GEOFENCY_DOMAIN, TRACKER_UPDATE)
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
+from . import DOMAIN as GEOFENCY_DOMAIN, TRACKER_UPDATE
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['geofency']
diff --git a/homeassistant/components/google/calendar.py b/homeassistant/components/google/calendar.py
index cc65c6d65..9f71e7c4f 100644
--- a/homeassistant/components/google/calendar.py
+++ b/homeassistant/components/google/calendar.py
@@ -1,14 +1,14 @@
 """Support for Google Calendar Search binary sensors."""
-import logging
 from datetime import timedelta
+import logging
 
 from homeassistant.components.calendar import CalendarEventDevice
-from homeassistant.components.google import (
-    CONF_CAL_ID, CONF_ENTITIES, CONF_TRACK, TOKEN_FILE,
-    CONF_IGNORE_AVAILABILITY, CONF_SEARCH,
-    GoogleCalendarService)
 from homeassistant.util import Throttle, dt
 
+from . import (
+    CONF_CAL_ID, CONF_ENTITIES, CONF_IGNORE_AVAILABILITY, CONF_SEARCH,
+    CONF_TRACK, TOKEN_FILE, GoogleCalendarService)
+
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_GOOGLE_SEARCH_PARAMS = {
diff --git a/homeassistant/components/googlehome/device_tracker.py b/homeassistant/components/googlehome/device_tracker.py
index 462f5db3b..c024cde0c 100644
--- a/homeassistant/components/googlehome/device_tracker.py
+++ b/homeassistant/components/googlehome/device_tracker.py
@@ -1,13 +1,13 @@
 """Support for Google Home Bluetooth tacker."""
-import logging
 from datetime import timedelta
+import logging
 
 from homeassistant.components.device_tracker import DeviceScanner
-from homeassistant.components.googlehome import (
-    CLIENT, DOMAIN as GOOGLEHOME_DOMAIN, NAME)
 from homeassistant.helpers.event import async_track_time_interval
 from homeassistant.util import slugify
 
+from . import CLIENT, DOMAIN as GOOGLEHOME_DOMAIN, NAME
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['googlehome']
diff --git a/homeassistant/components/googlehome/sensor.py b/homeassistant/components/googlehome/sensor.py
index 7577ee0b0..4f37740da 100644
--- a/homeassistant/components/googlehome/sensor.py
+++ b/homeassistant/components/googlehome/sensor.py
@@ -1,13 +1,13 @@
 """Support for Google Home alarm sensor."""
-import logging
 from datetime import timedelta
+import logging
 
-from homeassistant.components.googlehome import (
-    CLIENT, DOMAIN as GOOGLEHOME_DOMAIN, NAME)
 from homeassistant.const import DEVICE_CLASS_TIMESTAMP
 from homeassistant.helpers.entity import Entity
 import homeassistant.util.dt as dt_util
 
+from . import CLIENT, DOMAIN as GOOGLEHOME_DOMAIN, NAME
+
 DEPENDENCIES = ['googlehome']
 
 SCAN_INTERVAL = timedelta(seconds=10)
diff --git a/homeassistant/components/gpslogger/device_tracker.py b/homeassistant/components/gpslogger/device_tracker.py
index 90d2dc04f..c94969752 100644
--- a/homeassistant/components/gpslogger/device_tracker.py
+++ b/homeassistant/components/gpslogger/device_tracker.py
@@ -1,13 +1,13 @@
 """Support for the GPSLogger device tracking."""
 import logging
 
-from homeassistant.components.device_tracker import DOMAIN as \
-    DEVICE_TRACKER_DOMAIN
-from homeassistant.components.gpslogger import DOMAIN as GPSLOGGER_DOMAIN, \
-    TRACKER_UPDATE
+from homeassistant.components.device_tracker import (
+    DOMAIN as DEVICE_TRACKER_DOMAIN)
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.helpers.typing import HomeAssistantType
 
+from . import DOMAIN as GPSLOGGER_DOMAIN, TRACKER_UPDATE
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['gpslogger']
diff --git a/homeassistant/components/hangouts/__init__.py b/homeassistant/components/hangouts/__init__.py
index 4796744c1..2d36de8b7 100644
--- a/homeassistant/components/hangouts/__init__.py
+++ b/homeassistant/components/hangouts/__init__.py
@@ -4,12 +4,12 @@ import logging
 import voluptuous as vol
 
 from homeassistant import config_entries
-from homeassistant.components.hangouts.intents import HelpIntent
 from homeassistant.const import EVENT_HOMEASSISTANT_STOP
 from homeassistant.helpers import dispatcher, intent
 import homeassistant.helpers.config_validation as cv
 
 # We need an import from .config_flow, without it .config_flow is never loaded.
+from .intents import HelpIntent
 from .config_flow import HangoutsFlowHandler  # noqa: F401
 from .const import (
     CONF_BOT, CONF_DEFAULT_CONVERSATIONS, CONF_ERROR_SUPPRESSED_CONVERSATIONS,
diff --git a/homeassistant/components/hangouts/const.py b/homeassistant/components/hangouts/const.py
index ca0fdf986..38b238292 100644
--- a/homeassistant/components/hangouts/const.py
+++ b/homeassistant/components/hangouts/const.py
@@ -7,7 +7,7 @@ from homeassistant.components.notify import (
     ATTR_DATA, ATTR_MESSAGE, ATTR_TARGET)
 import homeassistant.helpers.config_validation as cv
 
-_LOGGER = logging.getLogger('homeassistant.components.hangouts')
+_LOGGER = logging.getLogger('.')
 
 
 DOMAIN = 'hangouts'
diff --git a/homeassistant/components/hangouts/notify.py b/homeassistant/components/hangouts/notify.py
index c3b5450be..de9af2e07 100644
--- a/homeassistant/components/hangouts/notify.py
+++ b/homeassistant/components/hangouts/notify.py
@@ -3,12 +3,13 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.components.hangouts.const import (
-    CONF_DEFAULT_CONVERSATIONS, DOMAIN, SERVICE_SEND_MESSAGE, TARGETS_SCHEMA)
 from homeassistant.components.notify import (
     ATTR_DATA, ATTR_MESSAGE, ATTR_TARGET, PLATFORM_SCHEMA,
     BaseNotificationService)
 
+from .const import (
+    CONF_DEFAULT_CONVERSATIONS, DOMAIN, SERVICE_SEND_MESSAGE, TARGETS_SCHEMA)
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = [DOMAIN]
diff --git a/homeassistant/components/hdmi_cec/media_player.py b/homeassistant/components/hdmi_cec/media_player.py
index 553983a1f..b2d2910e1 100644
--- a/homeassistant/components/hdmi_cec/media_player.py
+++ b/homeassistant/components/hdmi_cec/media_player.py
@@ -1,7 +1,6 @@
 """Support for HDMI CEC devices as media players."""
 import logging
 
-from homeassistant.components.hdmi_cec import ATTR_NEW, CecDevice
 from homeassistant.components.media_player import MediaPlayerDevice
 from homeassistant.components.media_player.const import (
     DOMAIN, SUPPORT_NEXT_TRACK, SUPPORT_PAUSE, SUPPORT_PLAY_MEDIA,
@@ -10,6 +9,8 @@ from homeassistant.components.media_player.const import (
 from homeassistant.const import (
     STATE_IDLE, STATE_OFF, STATE_ON, STATE_PAUSED, STATE_PLAYING)
 
+from . import ATTR_NEW, CecDevice
+
 DEPENDENCIES = ['hdmi_cec']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/hdmi_cec/switch.py b/homeassistant/components/hdmi_cec/switch.py
index ff423890b..639f54570 100644
--- a/homeassistant/components/hdmi_cec/switch.py
+++ b/homeassistant/components/hdmi_cec/switch.py
@@ -1,10 +1,11 @@
 """Support for HDMI CEC devices as switches."""
 import logging
 
-from homeassistant.components.hdmi_cec import ATTR_NEW, CecDevice
 from homeassistant.components.switch import DOMAIN, SwitchDevice
 from homeassistant.const import STATE_OFF, STATE_ON, STATE_STANDBY
 
+from . import ATTR_NEW, CecDevice
+
 DEPENDENCIES = ['hdmi_cec']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/hive/binary_sensor.py b/homeassistant/components/hive/binary_sensor.py
index dee27c5c7..a0973f4d8 100644
--- a/homeassistant/components/hive/binary_sensor.py
+++ b/homeassistant/components/hive/binary_sensor.py
@@ -1,6 +1,7 @@
 """Support for the Hive binary sensors."""
 from homeassistant.components.binary_sensor import BinarySensorDevice
-from homeassistant.components.hive import DATA_HIVE, DOMAIN
+
+from . import DATA_HIVE, DOMAIN
 
 DEPENDENCIES = ['hive']
 
diff --git a/homeassistant/components/hive/climate.py b/homeassistant/components/hive/climate.py
index 45829cda0..dac7feb29 100644
--- a/homeassistant/components/hive/climate.py
+++ b/homeassistant/components/hive/climate.py
@@ -1,12 +1,13 @@
 """Support for the Hive climate devices."""
 from homeassistant.components.climate import ClimateDevice
 from homeassistant.components.climate.const import (
-    STATE_AUTO, STATE_HEAT,
-    SUPPORT_AUX_HEAT, SUPPORT_TARGET_TEMPERATURE, SUPPORT_OPERATION_MODE)
-from homeassistant.components.hive import DATA_HIVE, DOMAIN
+    STATE_AUTO, STATE_HEAT, SUPPORT_AUX_HEAT, SUPPORT_OPERATION_MODE,
+    SUPPORT_TARGET_TEMPERATURE)
 from homeassistant.const import (
     ATTR_TEMPERATURE, STATE_OFF, STATE_ON, TEMP_CELSIUS)
 
+from . import DATA_HIVE, DOMAIN
+
 DEPENDENCIES = ['hive']
 
 HIVE_TO_HASS_STATE = {
diff --git a/homeassistant/components/hive/light.py b/homeassistant/components/hive/light.py
index 2bec60f0e..3a2176c3e 100644
--- a/homeassistant/components/hive/light.py
+++ b/homeassistant/components/hive/light.py
@@ -1,10 +1,11 @@
 """Support for the Hive lights."""
-from homeassistant.components.hive import DATA_HIVE, DOMAIN
 from homeassistant.components.light import (
     ATTR_BRIGHTNESS, ATTR_COLOR_TEMP, ATTR_HS_COLOR, SUPPORT_BRIGHTNESS,
     SUPPORT_COLOR, SUPPORT_COLOR_TEMP, Light)
 import homeassistant.util.color as color_util
 
+from . import DATA_HIVE, DOMAIN
+
 DEPENDENCIES = ['hive']
 
 
diff --git a/homeassistant/components/hive/sensor.py b/homeassistant/components/hive/sensor.py
index 142c8c7ee..e7b7d6b45 100644
--- a/homeassistant/components/hive/sensor.py
+++ b/homeassistant/components/hive/sensor.py
@@ -1,8 +1,9 @@
 """Support for the Hive sensors."""
-from homeassistant.components.hive import DATA_HIVE, DOMAIN
 from homeassistant.const import TEMP_CELSIUS
 from homeassistant.helpers.entity import Entity
 
+from . import DATA_HIVE, DOMAIN
+
 DEPENDENCIES = ['hive']
 
 FRIENDLY_NAMES = {
diff --git a/homeassistant/components/hive/switch.py b/homeassistant/components/hive/switch.py
index c897e37f3..fd4d3d69b 100644
--- a/homeassistant/components/hive/switch.py
+++ b/homeassistant/components/hive/switch.py
@@ -1,7 +1,8 @@
 """Support for the Hive switches."""
-from homeassistant.components.hive import DATA_HIVE, DOMAIN
 from homeassistant.components.switch import SwitchDevice
 
+from . import DATA_HIVE, DOMAIN
+
 DEPENDENCIES = ['hive']
 
 
diff --git a/homeassistant/components/hlk_sw16/switch.py b/homeassistant/components/hlk_sw16/switch.py
index b1bfc5ce2..164a504fa 100644
--- a/homeassistant/components/hlk_sw16/switch.py
+++ b/homeassistant/components/hlk_sw16/switch.py
@@ -1,13 +1,11 @@
 """Support for HLK-SW16 switches."""
 import logging
 
-from homeassistant.components.hlk_sw16 import (
-    SW16Device, DOMAIN as HLK_SW16,
-    DATA_DEVICE_REGISTER)
-from homeassistant.components.switch import (
-    ToggleEntity)
+from homeassistant.components.switch import ToggleEntity
 from homeassistant.const import CONF_NAME
 
+from . import DATA_DEVICE_REGISTER, DOMAIN as HLK_SW16, SW16Device
+
 DEPENDENCIES = [HLK_SW16]
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/homekit_controller/alarm_control_panel.py b/homeassistant/components/homekit_controller/alarm_control_panel.py
index 61352c3be..9bc15aad7 100644
--- a/homeassistant/components/homekit_controller/alarm_control_panel.py
+++ b/homeassistant/components/homekit_controller/alarm_control_panel.py
@@ -2,12 +2,12 @@
 import logging
 
 from homeassistant.components.alarm_control_panel import AlarmControlPanel
-from homeassistant.components.homekit_controller import (
-    KNOWN_ACCESSORIES, HomeKitEntity)
 from homeassistant.const import (
     ATTR_BATTERY_LEVEL, STATE_ALARM_ARMED_AWAY, STATE_ALARM_ARMED_HOME,
     STATE_ALARM_ARMED_NIGHT, STATE_ALARM_DISARMED, STATE_ALARM_TRIGGERED)
 
+from . import KNOWN_ACCESSORIES, HomeKitEntity
+
 DEPENDENCIES = ['homekit_controller']
 
 ICON = 'mdi:security'
diff --git a/homeassistant/components/homekit_controller/binary_sensor.py b/homeassistant/components/homekit_controller/binary_sensor.py
index 5d83ce6d9..7fcc5b4e8 100644
--- a/homeassistant/components/homekit_controller/binary_sensor.py
+++ b/homeassistant/components/homekit_controller/binary_sensor.py
@@ -2,8 +2,8 @@
 import logging
 
 from homeassistant.components.binary_sensor import BinarySensorDevice
-from homeassistant.components.homekit_controller import (
-    KNOWN_ACCESSORIES, HomeKitEntity)
+
+from . import KNOWN_ACCESSORIES, HomeKitEntity
 
 DEPENDENCIES = ['homekit_controller']
 
diff --git a/homeassistant/components/homekit_controller/climate.py b/homeassistant/components/homekit_controller/climate.py
index 8696d2b1f..243b795e7 100644
--- a/homeassistant/components/homekit_controller/climate.py
+++ b/homeassistant/components/homekit_controller/climate.py
@@ -3,11 +3,11 @@ import logging
 
 from homeassistant.components.climate import ClimateDevice
 from homeassistant.components.climate.const import (
-    STATE_HEAT, STATE_COOL, STATE_IDLE,
-    SUPPORT_TARGET_TEMPERATURE, SUPPORT_OPERATION_MODE)
-from homeassistant.components.homekit_controller import (
-    HomeKitEntity, KNOWN_ACCESSORIES)
-from homeassistant.const import TEMP_CELSIUS, STATE_OFF, ATTR_TEMPERATURE
+    STATE_COOL, STATE_HEAT, STATE_IDLE, SUPPORT_OPERATION_MODE,
+    SUPPORT_TARGET_TEMPERATURE)
+from homeassistant.const import ATTR_TEMPERATURE, STATE_OFF, TEMP_CELSIUS
+
+from . import KNOWN_ACCESSORIES, HomeKitEntity
 
 DEPENDENCIES = ['homekit_controller']
 
diff --git a/homeassistant/components/homekit_controller/cover.py b/homeassistant/components/homekit_controller/cover.py
index 4cd4c9ed2..4db1246b9 100644
--- a/homeassistant/components/homekit_controller/cover.py
+++ b/homeassistant/components/homekit_controller/cover.py
@@ -5,11 +5,11 @@ from homeassistant.components.cover import (
     ATTR_POSITION, ATTR_TILT_POSITION, SUPPORT_CLOSE, SUPPORT_CLOSE_TILT,
     SUPPORT_OPEN, SUPPORT_OPEN_TILT, SUPPORT_SET_POSITION,
     SUPPORT_SET_TILT_POSITION, CoverDevice)
-from homeassistant.components.homekit_controller import (
-    KNOWN_ACCESSORIES, HomeKitEntity)
 from homeassistant.const import (
     STATE_CLOSED, STATE_CLOSING, STATE_OPEN, STATE_OPENING)
 
+from . import KNOWN_ACCESSORIES, HomeKitEntity
+
 STATE_STOPPED = 'stopped'
 
 DEPENDENCIES = ['homekit_controller']
diff --git a/homeassistant/components/homekit_controller/light.py b/homeassistant/components/homekit_controller/light.py
index b5677c0e0..db8fd332c 100644
--- a/homeassistant/components/homekit_controller/light.py
+++ b/homeassistant/components/homekit_controller/light.py
@@ -1,12 +1,12 @@
 """Support for Homekit lights."""
 import logging
 
-from homeassistant.components.homekit_controller import (
-    KNOWN_ACCESSORIES, HomeKitEntity)
 from homeassistant.components.light import (
     ATTR_BRIGHTNESS, ATTR_COLOR_TEMP, ATTR_HS_COLOR, SUPPORT_BRIGHTNESS,
     SUPPORT_COLOR, SUPPORT_COLOR_TEMP, Light)
 
+from . import KNOWN_ACCESSORIES, HomeKitEntity
+
 DEPENDENCIES = ['homekit_controller']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/homekit_controller/lock.py b/homeassistant/components/homekit_controller/lock.py
index 6da5fa356..a2aac5767 100644
--- a/homeassistant/components/homekit_controller/lock.py
+++ b/homeassistant/components/homekit_controller/lock.py
@@ -1,12 +1,12 @@
 """Support for HomeKit Controller locks."""
 import logging
 
-from homeassistant.components.homekit_controller import (
-    KNOWN_ACCESSORIES, HomeKitEntity)
 from homeassistant.components.lock import LockDevice
 from homeassistant.const import (
     ATTR_BATTERY_LEVEL, STATE_LOCKED, STATE_UNLOCKED)
 
+from . import KNOWN_ACCESSORIES, HomeKitEntity
+
 DEPENDENCIES = ['homekit_controller']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/homekit_controller/sensor.py b/homeassistant/components/homekit_controller/sensor.py
index 5af0016eb..955a1a792 100644
--- a/homeassistant/components/homekit_controller/sensor.py
+++ b/homeassistant/components/homekit_controller/sensor.py
@@ -1,8 +1,8 @@
 """Support for Homekit sensors."""
-from homeassistant.components.homekit_controller import (
-    KNOWN_ACCESSORIES, HomeKitEntity)
 from homeassistant.const import TEMP_CELSIUS
 
+from . import KNOWN_ACCESSORIES, HomeKitEntity
+
 DEPENDENCIES = ['homekit_controller']
 
 HUMIDITY_ICON = 'mdi-water-percent'
diff --git a/homeassistant/components/homekit_controller/switch.py b/homeassistant/components/homekit_controller/switch.py
index 21f10e624..ba19413d4 100644
--- a/homeassistant/components/homekit_controller/switch.py
+++ b/homeassistant/components/homekit_controller/switch.py
@@ -1,10 +1,10 @@
 """Support for Homekit switches."""
 import logging
 
-from homeassistant.components.homekit_controller import (
-    KNOWN_ACCESSORIES, HomeKitEntity)
 from homeassistant.components.switch import SwitchDevice
 
+from . import KNOWN_ACCESSORIES, HomeKitEntity
+
 DEPENDENCIES = ['homekit_controller']
 
 OUTLET_IN_USE = "outlet_in_use"
diff --git a/homeassistant/components/homematic/binary_sensor.py b/homeassistant/components/homematic/binary_sensor.py
index 1704411c9..7bf260a9b 100644
--- a/homeassistant/components/homematic/binary_sensor.py
+++ b/homeassistant/components/homematic/binary_sensor.py
@@ -2,9 +2,10 @@
 import logging
 
 from homeassistant.components.binary_sensor import BinarySensorDevice
-from homeassistant.components.homematic import ATTR_DISCOVER_DEVICES, HMDevice
 from homeassistant.const import STATE_UNKNOWN
 
+from . import ATTR_DISCOVER_DEVICES, HMDevice
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['homematic']
diff --git a/homeassistant/components/homematic/climate.py b/homeassistant/components/homematic/climate.py
index e5eb292b4..146cad1bc 100644
--- a/homeassistant/components/homematic/climate.py
+++ b/homeassistant/components/homematic/climate.py
@@ -5,10 +5,10 @@ from homeassistant.components.climate import ClimateDevice
 from homeassistant.components.climate.const import (
     STATE_AUTO, STATE_MANUAL, SUPPORT_OPERATION_MODE,
     SUPPORT_TARGET_TEMPERATURE)
-from homeassistant.components.homematic import (
-    ATTR_DISCOVER_DEVICES, HM_ATTRIBUTE_SUPPORT, HMDevice)
 from homeassistant.const import ATTR_TEMPERATURE, TEMP_CELSIUS
 
+from . import ATTR_DISCOVER_DEVICES, HM_ATTRIBUTE_SUPPORT, HMDevice
+
 DEPENDENCIES = ['homematic']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/homematic/cover.py b/homeassistant/components/homematic/cover.py
index 79a1afe9a..33b764dc3 100644
--- a/homeassistant/components/homematic/cover.py
+++ b/homeassistant/components/homematic/cover.py
@@ -3,9 +3,10 @@ import logging
 
 from homeassistant.components.cover import (
     ATTR_POSITION, ATTR_TILT_POSITION, CoverDevice)
-from homeassistant.components.homematic import ATTR_DISCOVER_DEVICES, HMDevice
 from homeassistant.const import STATE_UNKNOWN
 
+from . import ATTR_DISCOVER_DEVICES, HMDevice
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['homematic']
diff --git a/homeassistant/components/homematic/light.py b/homeassistant/components/homematic/light.py
index 21b875742..c36014611 100644
--- a/homeassistant/components/homematic/light.py
+++ b/homeassistant/components/homematic/light.py
@@ -1,11 +1,12 @@
 """Support for Homematic lights."""
 import logging
 
-from homeassistant.components.homematic import ATTR_DISCOVER_DEVICES, HMDevice
 from homeassistant.components.light import (
     ATTR_BRIGHTNESS, ATTR_EFFECT, ATTR_HS_COLOR, SUPPORT_BRIGHTNESS,
     SUPPORT_COLOR, SUPPORT_EFFECT, Light)
 
+from . import ATTR_DISCOVER_DEVICES, HMDevice
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['homematic']
diff --git a/homeassistant/components/homematic/lock.py b/homeassistant/components/homematic/lock.py
index 5d857617f..3c0ca040c 100644
--- a/homeassistant/components/homematic/lock.py
+++ b/homeassistant/components/homematic/lock.py
@@ -1,10 +1,11 @@
 """Support for Homematic locks."""
 import logging
 
-from homeassistant.components.homematic import ATTR_DISCOVER_DEVICES, HMDevice
 from homeassistant.components.lock import SUPPORT_OPEN, LockDevice
 from homeassistant.const import STATE_UNKNOWN
 
+from . import ATTR_DISCOVER_DEVICES, HMDevice
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['homematic']
diff --git a/homeassistant/components/homematic/notify.py b/homeassistant/components/homematic/notify.py
index e6ef1a60e..021560eee 100644
--- a/homeassistant/components/homematic/notify.py
+++ b/homeassistant/components/homematic/notify.py
@@ -8,14 +8,15 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.components.homematic import (
-    ATTR_ADDRESS, ATTR_CHANNEL, ATTR_INTERFACE, ATTR_PARAM, ATTR_VALUE, DOMAIN,
-    SERVICE_SET_DEVICE_VALUE)
 from homeassistant.components.notify import (
     ATTR_DATA, PLATFORM_SCHEMA, BaseNotificationService)
 import homeassistant.helpers.config_validation as cv
 import homeassistant.helpers.template as template_helper
 
+from . import (
+    ATTR_ADDRESS, ATTR_CHANNEL, ATTR_INTERFACE, ATTR_PARAM, ATTR_VALUE, DOMAIN,
+    SERVICE_SET_DEVICE_VALUE)
+
 _LOGGER = logging.getLogger(__name__)
 DEPENDENCIES = ["homematic"]
 
diff --git a/homeassistant/components/homematic/sensor.py b/homeassistant/components/homematic/sensor.py
index 8e3e55e1f..401d11f70 100644
--- a/homeassistant/components/homematic/sensor.py
+++ b/homeassistant/components/homematic/sensor.py
@@ -1,8 +1,9 @@
 """Support for HomeMatic sensors."""
 import logging
 
-from homeassistant.components.homematic import ATTR_DISCOVER_DEVICES, HMDevice
-from homeassistant.const import STATE_UNKNOWN, POWER_WATT, ENERGY_WATT_HOUR
+from homeassistant.const import ENERGY_WATT_HOUR, POWER_WATT, STATE_UNKNOWN
+
+from . import ATTR_DISCOVER_DEVICES, HMDevice
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/homematic/switch.py b/homeassistant/components/homematic/switch.py
index cfcd26891..393ad09b3 100644
--- a/homeassistant/components/homematic/switch.py
+++ b/homeassistant/components/homematic/switch.py
@@ -1,10 +1,11 @@
 """Support for HomeMatic switches."""
 import logging
 
-from homeassistant.components.homematic import ATTR_DISCOVER_DEVICES, HMDevice
 from homeassistant.components.switch import SwitchDevice
 from homeassistant.const import STATE_UNKNOWN
 
+from . import ATTR_DISCOVER_DEVICES, HMDevice
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['homematic']
diff --git a/homeassistant/components/homematicip_cloud/alarm_control_panel.py b/homeassistant/components/homematicip_cloud/alarm_control_panel.py
index efa1ea1f4..eb5855bb9 100644
--- a/homeassistant/components/homematicip_cloud/alarm_control_panel.py
+++ b/homeassistant/components/homematicip_cloud/alarm_control_panel.py
@@ -2,12 +2,12 @@
 import logging
 
 from homeassistant.components.alarm_control_panel import AlarmControlPanel
-from homeassistant.components.homematicip_cloud import (
-    DOMAIN as HMIPC_DOMAIN, HMIPC_HAPID, HomematicipGenericDevice)
 from homeassistant.const import (
     STATE_ALARM_ARMED_AWAY, STATE_ALARM_ARMED_HOME, STATE_ALARM_DISARMED,
     STATE_ALARM_TRIGGERED)
 
+from . import DOMAIN as HMIPC_DOMAIN, HMIPC_HAPID, HomematicipGenericDevice
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['homematicip_cloud']
diff --git a/homeassistant/components/homematicip_cloud/binary_sensor.py b/homeassistant/components/homematicip_cloud/binary_sensor.py
index 9445d6521..786a28a70 100644
--- a/homeassistant/components/homematicip_cloud/binary_sensor.py
+++ b/homeassistant/components/homematicip_cloud/binary_sensor.py
@@ -2,10 +2,9 @@
 import logging
 
 from homeassistant.components.binary_sensor import BinarySensorDevice
-from homeassistant.components.homematicip_cloud import (
-    DOMAIN as HMIPC_DOMAIN, HMIPC_HAPID, HomematicipGenericDevice)
-from homeassistant.components.homematicip_cloud.device import (
-    ATTR_GROUP_MEMBER_UNREACHABLE)
+
+from . import DOMAIN as HMIPC_DOMAIN, HMIPC_HAPID, HomematicipGenericDevice
+from .device import ATTR_GROUP_MEMBER_UNREACHABLE
 
 DEPENDENCIES = ['homematicip_cloud']
 
diff --git a/homeassistant/components/homematicip_cloud/climate.py b/homeassistant/components/homematicip_cloud/climate.py
index 08c88bbb7..955f3e5ba 100644
--- a/homeassistant/components/homematicip_cloud/climate.py
+++ b/homeassistant/components/homematicip_cloud/climate.py
@@ -4,10 +4,10 @@ import logging
 from homeassistant.components.climate import ClimateDevice
 from homeassistant.components.climate.const import (
     STATE_AUTO, STATE_MANUAL, SUPPORT_TARGET_TEMPERATURE)
-from homeassistant.components.homematicip_cloud import (
-    DOMAIN as HMIPC_DOMAIN, HMIPC_HAPID, HomematicipGenericDevice)
 from homeassistant.const import ATTR_TEMPERATURE, TEMP_CELSIUS
 
+from . import DOMAIN as HMIPC_DOMAIN, HMIPC_HAPID, HomematicipGenericDevice
+
 _LOGGER = logging.getLogger(__name__)
 
 STATE_BOOST = 'Boost'
diff --git a/homeassistant/components/homematicip_cloud/const.py b/homeassistant/components/homematicip_cloud/const.py
index fbda56f28..c9a5df601 100644
--- a/homeassistant/components/homematicip_cloud/const.py
+++ b/homeassistant/components/homematicip_cloud/const.py
@@ -1,7 +1,7 @@
 """Constants for the HomematicIP Cloud component."""
 import logging
 
-_LOGGER = logging.getLogger('homeassistant.components.homematicip_cloud')
+_LOGGER = logging.getLogger('.')
 
 DOMAIN = 'homematicip_cloud'
 
diff --git a/homeassistant/components/homematicip_cloud/cover.py b/homeassistant/components/homematicip_cloud/cover.py
index 86c11dab7..735e87896 100644
--- a/homeassistant/components/homematicip_cloud/cover.py
+++ b/homeassistant/components/homematicip_cloud/cover.py
@@ -2,8 +2,8 @@
 import logging
 
 from homeassistant.components.cover import ATTR_POSITION, CoverDevice
-from homeassistant.components.homematicip_cloud import (
-    DOMAIN as HMIPC_DOMAIN, HMIPC_HAPID, HomematicipGenericDevice)
+
+from . import DOMAIN as HMIPC_DOMAIN, HMIPC_HAPID, HomematicipGenericDevice
 
 DEPENDENCIES = ['homematicip_cloud']
 
diff --git a/homeassistant/components/homematicip_cloud/light.py b/homeassistant/components/homematicip_cloud/light.py
index 73c607683..f8b19b5bb 100644
--- a/homeassistant/components/homematicip_cloud/light.py
+++ b/homeassistant/components/homematicip_cloud/light.py
@@ -1,12 +1,12 @@
 """Support for HomematicIP Cloud lights."""
 import logging
 
-from homeassistant.components.homematicip_cloud import (
-    DOMAIN as HMIPC_DOMAIN, HMIPC_HAPID, HomematicipGenericDevice)
 from homeassistant.components.light import (
     ATTR_BRIGHTNESS, ATTR_COLOR_NAME, ATTR_HS_COLOR, SUPPORT_BRIGHTNESS,
     SUPPORT_COLOR, Light)
 
+from . import DOMAIN as HMIPC_DOMAIN, HMIPC_HAPID, HomematicipGenericDevice
+
 DEPENDENCIES = ['homematicip_cloud']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/homematicip_cloud/sensor.py b/homeassistant/components/homematicip_cloud/sensor.py
index d61559983..397587394 100644
--- a/homeassistant/components/homematicip_cloud/sensor.py
+++ b/homeassistant/components/homematicip_cloud/sensor.py
@@ -1,12 +1,12 @@
 """Support for HomematicIP Cloud sensors."""
 import logging
 
-from homeassistant.components.homematicip_cloud import (
-    DOMAIN as HMIPC_DOMAIN, HMIPC_HAPID, HomematicipGenericDevice)
 from homeassistant.const import (
     DEVICE_CLASS_HUMIDITY, DEVICE_CLASS_ILLUMINANCE, DEVICE_CLASS_TEMPERATURE,
     POWER_WATT, TEMP_CELSIUS)
 
+from . import DOMAIN as HMIPC_DOMAIN, HMIPC_HAPID, HomematicipGenericDevice
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['homematicip_cloud']
diff --git a/homeassistant/components/homematicip_cloud/switch.py b/homeassistant/components/homematicip_cloud/switch.py
index 74f50f87b..62e72f0ad 100644
--- a/homeassistant/components/homematicip_cloud/switch.py
+++ b/homeassistant/components/homematicip_cloud/switch.py
@@ -1,12 +1,11 @@
 """Support for HomematicIP Cloud switches."""
 import logging
 
-from homeassistant.components.homematicip_cloud import (
-    DOMAIN as HMIPC_DOMAIN, HMIPC_HAPID, HomematicipGenericDevice)
-from homeassistant.components.homematicip_cloud.device import (
-    ATTR_GROUP_MEMBER_UNREACHABLE)
 from homeassistant.components.switch import SwitchDevice
 
+from . import DOMAIN as HMIPC_DOMAIN, HMIPC_HAPID, HomematicipGenericDevice
+from .device import ATTR_GROUP_MEMBER_UNREACHABLE
+
 DEPENDENCIES = ['homematicip_cloud']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/homematicip_cloud/weather.py b/homeassistant/components/homematicip_cloud/weather.py
index 5a6261195..101adcdea 100644
--- a/homeassistant/components/homematicip_cloud/weather.py
+++ b/homeassistant/components/homematicip_cloud/weather.py
@@ -2,10 +2,10 @@
 """Support for HomematicIP Cloud weather devices."""
 import logging
 
-from homeassistant.components.homematicip_cloud import (
-    DOMAIN as HMIPC_DOMAIN, HMIPC_HAPID, HomematicipGenericDevice)
 from homeassistant.components.weather import WeatherEntity
 
+from . import DOMAIN as HMIPC_DOMAIN, HMIPC_HAPID, HomematicipGenericDevice
+
 DEPENDENCIES = ['homematicip_cloud']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/homeworks/light.py b/homeassistant/components/homeworks/light.py
index 7f5d7f6aa..ca41dff98 100644
--- a/homeassistant/components/homeworks/light.py
+++ b/homeassistant/components/homeworks/light.py
@@ -1,15 +1,16 @@
 """Support for Lutron Homeworks lights."""
 import logging
 
-from homeassistant.components.homeworks import (
-    CONF_ADDR, CONF_DIMMERS, CONF_RATE, ENTITY_SIGNAL, HOMEWORKS_CONTROLLER,
-    HomeworksDevice)
 from homeassistant.components.light import (
     ATTR_BRIGHTNESS, SUPPORT_BRIGHTNESS, Light)
 from homeassistant.const import CONF_NAME
 from homeassistant.core import callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
+from . import (
+    CONF_ADDR, CONF_DIMMERS, CONF_RATE, ENTITY_SIGNAL, HOMEWORKS_CONTROLLER,
+    HomeworksDevice)
+
 DEPENDENCIES = ['homeworks']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/http/view.py b/homeassistant/components/http/view.py
index bb7f2c2fe..daac9fef7 100644
--- a/homeassistant/components/http/view.py
+++ b/homeassistant/components/http/view.py
@@ -9,12 +9,12 @@ from aiohttp.web_exceptions import (
 import voluptuous as vol
 
 from homeassistant import exceptions
-from homeassistant.components.http.ban import process_success_login
 from homeassistant.const import CONTENT_TYPE_JSON
 from homeassistant.core import Context, is_callback
 from homeassistant.helpers.json import JSONEncoder
 
-from .const import KEY_AUTHENTICATED, KEY_REAL_IP, KEY_HASS
+from .ban import process_success_login
+from .const import KEY_AUTHENTICATED, KEY_HASS, KEY_REAL_IP
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/hue/const.py b/homeassistant/components/hue/const.py
index 2eb30d478..d61a0aa7e 100644
--- a/homeassistant/components/hue/const.py
+++ b/homeassistant/components/hue/const.py
@@ -1,6 +1,6 @@
 """Constants for the Hue component."""
 import logging
 
-LOGGER = logging.getLogger('homeassistant.components.hue')
+LOGGER = logging.getLogger('.')
 DOMAIN = "hue"
 API_NUPNP = 'https://www.meethue.com/api/nupnp'
diff --git a/homeassistant/components/hydrawise/binary_sensor.py b/homeassistant/components/hydrawise/binary_sensor.py
index bfe7cbd55..85a51d364 100644
--- a/homeassistant/components/hydrawise/binary_sensor.py
+++ b/homeassistant/components/hydrawise/binary_sensor.py
@@ -3,13 +3,14 @@ import logging
 
 import voluptuous as vol
 
-import homeassistant.helpers.config_validation as cv
-from homeassistant.components.hydrawise import (
-    BINARY_SENSORS, DATA_HYDRAWISE, HydrawiseEntity, DEVICE_MAP,
-    DEVICE_MAP_INDEX)
 from homeassistant.components.binary_sensor import (
-    BinarySensorDevice, PLATFORM_SCHEMA)
+    PLATFORM_SCHEMA, BinarySensorDevice)
 from homeassistant.const import CONF_MONITORED_CONDITIONS
+import homeassistant.helpers.config_validation as cv
+
+from . import (
+    BINARY_SENSORS, DATA_HYDRAWISE, DEVICE_MAP, DEVICE_MAP_INDEX,
+    HydrawiseEntity)
 
 DEPENDENCIES = ['hydrawise']
 
diff --git a/homeassistant/components/hydrawise/sensor.py b/homeassistant/components/hydrawise/sensor.py
index 575686b92..fc15a54ed 100644
--- a/homeassistant/components/hydrawise/sensor.py
+++ b/homeassistant/components/hydrawise/sensor.py
@@ -3,11 +3,12 @@ import logging
 
 import voluptuous as vol
 
-import homeassistant.helpers.config_validation as cv
-from homeassistant.components.hydrawise import (
-    DATA_HYDRAWISE, HydrawiseEntity, DEVICE_MAP, DEVICE_MAP_INDEX, SENSORS)
 from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import CONF_MONITORED_CONDITIONS
+import homeassistant.helpers.config_validation as cv
+
+from . import (
+    DATA_HYDRAWISE, DEVICE_MAP, DEVICE_MAP_INDEX, SENSORS, HydrawiseEntity)
 
 DEPENDENCIES = ['hydrawise']
 
diff --git a/homeassistant/components/hydrawise/switch.py b/homeassistant/components/hydrawise/switch.py
index a6a8b9c54..dcbd5274a 100644
--- a/homeassistant/components/hydrawise/switch.py
+++ b/homeassistant/components/hydrawise/switch.py
@@ -3,13 +3,14 @@ import logging
 
 import voluptuous as vol
 
-import homeassistant.helpers.config_validation as cv
-from homeassistant.components.hydrawise import (
-    ALLOWED_WATERING_TIME, CONF_WATERING_TIME,
-    DATA_HYDRAWISE, DEFAULT_WATERING_TIME, HydrawiseEntity, SWITCHES,
-    DEVICE_MAP, DEVICE_MAP_INDEX)
 from homeassistant.components.switch import PLATFORM_SCHEMA, SwitchDevice
 from homeassistant.const import CONF_MONITORED_CONDITIONS
+import homeassistant.helpers.config_validation as cv
+
+from . import (
+    ALLOWED_WATERING_TIME, CONF_WATERING_TIME, DATA_HYDRAWISE,
+    DEFAULT_WATERING_TIME, DEVICE_MAP, DEVICE_MAP_INDEX, SWITCHES,
+    HydrawiseEntity)
 
 DEPENDENCIES = ['hydrawise']
 
diff --git a/homeassistant/components/ifttt/alarm_control_panel.py b/homeassistant/components/ifttt/alarm_control_panel.py
index 98a176b1e..3f8061731 100644
--- a/homeassistant/components/ifttt/alarm_control_panel.py
+++ b/homeassistant/components/ifttt/alarm_control_panel.py
@@ -7,14 +7,14 @@ import voluptuous as vol
 import homeassistant.components.alarm_control_panel as alarm
 from homeassistant.components.alarm_control_panel import (
     DOMAIN, PLATFORM_SCHEMA)
-from homeassistant.components.ifttt import (
-    ATTR_EVENT, DOMAIN as IFTTT_DOMAIN, SERVICE_TRIGGER)
 from homeassistant.const import (
     ATTR_ENTITY_ID, ATTR_STATE, CONF_CODE, CONF_NAME, CONF_OPTIMISTIC,
     STATE_ALARM_ARMED_AWAY, STATE_ALARM_ARMED_HOME, STATE_ALARM_ARMED_NIGHT,
     STATE_ALARM_DISARMED)
 import homeassistant.helpers.config_validation as cv
 
+from . import ATTR_EVENT, DOMAIN as IFTTT_DOMAIN, SERVICE_TRIGGER
+
 DEPENDENCIES = ['ifttt']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/ihc/__init__.py b/homeassistant/components/ihc/__init__.py
index daaf471e3..102acd825 100644
--- a/homeassistant/components/ihc/__init__.py
+++ b/homeassistant/components/ihc/__init__.py
@@ -5,13 +5,6 @@ import os.path
 import voluptuous as vol
 
 from homeassistant.components.binary_sensor import DEVICE_CLASSES_SCHEMA
-from homeassistant.components.ihc.const import (
-    ATTR_IHC_ID, ATTR_VALUE, CONF_AUTOSETUP, CONF_BINARY_SENSOR, CONF_DIMMABLE,
-    CONF_INFO, CONF_INVERTING, CONF_LIGHT, CONF_NODE, CONF_NOTE, CONF_OFF_ID,
-    CONF_ON_ID, CONF_POSITION, CONF_SENSOR, CONF_SWITCH, CONF_XPATH,
-    SERVICE_SET_RUNTIME_VALUE_BOOL, SERVICE_SET_RUNTIME_VALUE_FLOAT,
-    SERVICE_SET_RUNTIME_VALUE_INT, SERVICE_PULSE)
-from homeassistant.components.ihc.util import async_pulse
 from homeassistant.config import load_yaml_config_file
 from homeassistant.const import (
     CONF_ID, CONF_NAME, CONF_PASSWORD, CONF_TYPE, CONF_UNIT_OF_MEASUREMENT,
@@ -20,6 +13,14 @@ from homeassistant.helpers import discovery
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.typing import HomeAssistantType
 
+from .const import (
+    ATTR_IHC_ID, ATTR_VALUE, CONF_AUTOSETUP, CONF_BINARY_SENSOR, CONF_DIMMABLE,
+    CONF_INFO, CONF_INVERTING, CONF_LIGHT, CONF_NODE, CONF_NOTE, CONF_OFF_ID,
+    CONF_ON_ID, CONF_POSITION, CONF_SENSOR, CONF_SWITCH, CONF_XPATH,
+    SERVICE_PULSE, SERVICE_SET_RUNTIME_VALUE_BOOL,
+    SERVICE_SET_RUNTIME_VALUE_FLOAT, SERVICE_SET_RUNTIME_VALUE_INT)
+from .util import async_pulse
+
 REQUIREMENTS = ['ihcsdk==2.3.0', 'defusedxml==0.5.0']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/ihc/binary_sensor.py b/homeassistant/components/ihc/binary_sensor.py
index 7e3371a83..69e3e1685 100644
--- a/homeassistant/components/ihc/binary_sensor.py
+++ b/homeassistant/components/ihc/binary_sensor.py
@@ -1,10 +1,11 @@
 """Support for IHC binary sensors."""
 from homeassistant.components.binary_sensor import BinarySensorDevice
-from homeassistant.components.ihc import IHC_CONTROLLER, IHC_DATA, IHC_INFO
-from homeassistant.components.ihc.const import CONF_INVERTING
-from homeassistant.components.ihc.ihcdevice import IHCDevice
 from homeassistant.const import CONF_TYPE
 
+from . import IHC_CONTROLLER, IHC_DATA, IHC_INFO
+from .const import CONF_INVERTING
+from .ihcdevice import IHCDevice
+
 DEPENDENCIES = ['ihc']
 
 
diff --git a/homeassistant/components/ihc/light.py b/homeassistant/components/ihc/light.py
index 646be7597..ad6d0fb65 100644
--- a/homeassistant/components/ihc/light.py
+++ b/homeassistant/components/ihc/light.py
@@ -1,15 +1,14 @@
 """Support for IHC lights."""
 import logging
 
-from homeassistant.components.ihc import IHC_CONTROLLER, IHC_DATA, IHC_INFO
-from homeassistant.components.ihc.const import (
-    CONF_DIMMABLE, CONF_OFF_ID, CONF_ON_ID)
-from homeassistant.components.ihc.util import (
-    async_pulse, async_set_bool, async_set_int)
-from homeassistant.components.ihc.ihcdevice import IHCDevice
 from homeassistant.components.light import (
     ATTR_BRIGHTNESS, SUPPORT_BRIGHTNESS, Light)
 
+from . import IHC_CONTROLLER, IHC_DATA, IHC_INFO
+from .const import CONF_DIMMABLE, CONF_OFF_ID, CONF_ON_ID
+from .ihcdevice import IHCDevice
+from .util import async_pulse, async_set_bool, async_set_int
+
 DEPENDENCIES = ['ihc']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/ihc/sensor.py b/homeassistant/components/ihc/sensor.py
index 930ac2216..fd1f2cee5 100644
--- a/homeassistant/components/ihc/sensor.py
+++ b/homeassistant/components/ihc/sensor.py
@@ -1,9 +1,10 @@
 """Support for IHC sensors."""
-from homeassistant.components.ihc import IHC_CONTROLLER, IHC_DATA, IHC_INFO
-from homeassistant.components.ihc.ihcdevice import IHCDevice
 from homeassistant.const import CONF_UNIT_OF_MEASUREMENT
 from homeassistant.helpers.entity import Entity
 
+from . import IHC_CONTROLLER, IHC_DATA, IHC_INFO
+from .ihcdevice import IHCDevice
+
 DEPENDENCIES = ['ihc']
 
 
diff --git a/homeassistant/components/ihc/switch.py b/homeassistant/components/ihc/switch.py
index d25b34344..e2189492b 100644
--- a/homeassistant/components/ihc/switch.py
+++ b/homeassistant/components/ihc/switch.py
@@ -1,10 +1,11 @@
 """Support for IHC switches."""
-from homeassistant.components.ihc import IHC_CONTROLLER, IHC_DATA, IHC_INFO
-from homeassistant.components.ihc.const import CONF_OFF_ID, CONF_ON_ID
-from homeassistant.components.ihc.util import async_pulse, async_set_bool
-from homeassistant.components.ihc.ihcdevice import IHCDevice
 from homeassistant.components.switch import SwitchDevice
 
+from . import IHC_CONTROLLER, IHC_DATA, IHC_INFO
+from .const import CONF_OFF_ID, CONF_ON_ID
+from .ihcdevice import IHCDevice
+from .util import async_pulse, async_set_bool
+
 DEPENDENCIES = ['ihc']
 
 
diff --git a/homeassistant/components/influxdb/sensor.py b/homeassistant/components/influxdb/sensor.py
index 35229c2a8..9dbb4787d 100644
--- a/homeassistant/components/influxdb/sensor.py
+++ b/homeassistant/components/influxdb/sensor.py
@@ -9,7 +9,6 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.components.influxdb import CONF_DB_NAME
 from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import (
     CONF_HOST, CONF_NAME, CONF_PASSWORD, CONF_PORT, CONF_SSL,
@@ -20,6 +19,8 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
+from . import CONF_DB_NAME
+
 _LOGGER = logging.getLogger(__name__)
 
 REQUIREMENTS = ['influxdb==5.2.0']
diff --git a/homeassistant/components/insteon/binary_sensor.py b/homeassistant/components/insteon/binary_sensor.py
index 06eddb9a0..6f1e56756 100644
--- a/homeassistant/components/insteon/binary_sensor.py
+++ b/homeassistant/components/insteon/binary_sensor.py
@@ -2,7 +2,8 @@
 import logging
 
 from homeassistant.components.binary_sensor import BinarySensorDevice
-from homeassistant.components.insteon import InsteonEntity
+
+from . import InsteonEntity
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/insteon/cover.py b/homeassistant/components/insteon/cover.py
index 7de2e8724..1bb316152 100644
--- a/homeassistant/components/insteon/cover.py
+++ b/homeassistant/components/insteon/cover.py
@@ -5,7 +5,8 @@ import math
 from homeassistant.components.cover import (
     ATTR_POSITION, SUPPORT_CLOSE, SUPPORT_OPEN, SUPPORT_SET_POSITION,
     CoverDevice)
-from homeassistant.components.insteon import InsteonEntity
+
+from . import InsteonEntity
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/insteon/fan.py b/homeassistant/components/insteon/fan.py
index 2b6097a4b..26a56d6df 100644
--- a/homeassistant/components/insteon/fan.py
+++ b/homeassistant/components/insteon/fan.py
@@ -4,9 +4,10 @@ import logging
 from homeassistant.components.fan import (
     SPEED_HIGH, SPEED_LOW, SPEED_MEDIUM, SPEED_OFF, SUPPORT_SET_SPEED,
     FanEntity)
-from homeassistant.components.insteon import InsteonEntity
 from homeassistant.const import STATE_OFF
 
+from . import InsteonEntity
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['insteon']
diff --git a/homeassistant/components/insteon/light.py b/homeassistant/components/insteon/light.py
index e8ffc2267..676c05332 100644
--- a/homeassistant/components/insteon/light.py
+++ b/homeassistant/components/insteon/light.py
@@ -1,10 +1,11 @@
 """Support for Insteon lights via PowerLinc Modem."""
 import logging
 
-from homeassistant.components.insteon import InsteonEntity
 from homeassistant.components.light import (
     ATTR_BRIGHTNESS, SUPPORT_BRIGHTNESS, Light)
 
+from . import InsteonEntity
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['insteon']
diff --git a/homeassistant/components/insteon/sensor.py b/homeassistant/components/insteon/sensor.py
index d895d9720..edea87e1f 100644
--- a/homeassistant/components/insteon/sensor.py
+++ b/homeassistant/components/insteon/sensor.py
@@ -1,9 +1,10 @@
 """Support for INSTEON dimmers via PowerLinc Modem."""
 import logging
 
-from homeassistant.components.insteon import InsteonEntity
 from homeassistant.helpers.entity import Entity
 
+from . import InsteonEntity
+
 DEPENDENCIES = ['insteon']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/insteon/switch.py b/homeassistant/components/insteon/switch.py
index 2a6b97a39..4fdcdb20b 100644
--- a/homeassistant/components/insteon/switch.py
+++ b/homeassistant/components/insteon/switch.py
@@ -1,9 +1,10 @@
 """Support for INSTEON dimmers via PowerLinc Modem."""
 import logging
 
-from homeassistant.components.insteon import InsteonEntity
 from homeassistant.components.switch import SwitchDevice
 
+from . import InsteonEntity
+
 DEPENDENCIES = ['insteon']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/iota/sensor.py b/homeassistant/components/iota/sensor.py
index 5cd5db616..2955828af 100644
--- a/homeassistant/components/iota/sensor.py
+++ b/homeassistant/components/iota/sensor.py
@@ -1,10 +1,11 @@
 """Support for IOTA wallet sensors."""
-import logging
 from datetime import timedelta
+import logging
 
-from homeassistant.components.iota import IotaDevice, CONF_WALLETS
 from homeassistant.const import CONF_NAME
 
+from . import CONF_WALLETS, IotaDevice
+
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_TESTNET = 'testnet'
diff --git a/homeassistant/components/iperf3/sensor.py b/homeassistant/components/iperf3/sensor.py
index 59813ae04..db9aafcdf 100644
--- a/homeassistant/components/iperf3/sensor.py
+++ b/homeassistant/components/iperf3/sensor.py
@@ -1,11 +1,11 @@
 """Support for Iperf3 sensors."""
-from homeassistant.components.iperf3 import (
-    DATA_UPDATED, DOMAIN as IPERF3_DOMAIN, SENSOR_TYPES, ATTR_VERSION)
 from homeassistant.const import ATTR_ATTRIBUTION
 from homeassistant.core import callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.helpers.restore_state import RestoreEntity
 
+from . import ATTR_VERSION, DATA_UPDATED, DOMAIN as IPERF3_DOMAIN, SENSOR_TYPES
+
 DEPENDENCIES = ['iperf3']
 
 ATTRIBUTION = 'Data retrieved using Iperf3'
diff --git a/homeassistant/components/ipma/const.py b/homeassistant/components/ipma/const.py
index bdd97c74e..1e778eff5 100644
--- a/homeassistant/components/ipma/const.py
+++ b/homeassistant/components/ipma/const.py
@@ -11,4 +11,4 @@ ENTITY_ID_SENSOR_FORMAT = WEATHER_DOMAIN + ".ipma_{}"
 ENTITY_ID_SENSOR_FORMAT_HOME = ENTITY_ID_SENSOR_FORMAT.format(
     HOME_LOCATION_NAME)
 
-_LOGGER = logging.getLogger('homeassistant.components.ipma')
+_LOGGER = logging.getLogger('.')
diff --git a/homeassistant/components/isy994/binary_sensor.py b/homeassistant/components/isy994/binary_sensor.py
index 013b99fbb..ce95e71e8 100644
--- a/homeassistant/components/isy994/binary_sensor.py
+++ b/homeassistant/components/isy994/binary_sensor.py
@@ -4,14 +4,14 @@ import logging
 from typing import Callable
 
 from homeassistant.components.binary_sensor import DOMAIN, BinarySensorDevice
-from homeassistant.components.isy994 import (
-    ISY994_NODES, ISY994_PROGRAMS, ISYDevice)
 from homeassistant.const import STATE_OFF, STATE_ON
 from homeassistant.core import callback
 from homeassistant.helpers.event import async_track_point_in_utc_time
 from homeassistant.helpers.typing import ConfigType
 from homeassistant.util import dt as dt_util
 
+from . import ISY994_NODES, ISY994_PROGRAMS, ISYDevice
+
 _LOGGER = logging.getLogger(__name__)
 
 ISY_DEVICE_TYPES = {
diff --git a/homeassistant/components/isy994/cover.py b/homeassistant/components/isy994/cover.py
index 22ea16297..b40d6428f 100644
--- a/homeassistant/components/isy994/cover.py
+++ b/homeassistant/components/isy994/cover.py
@@ -3,12 +3,12 @@ import logging
 from typing import Callable
 
 from homeassistant.components.cover import DOMAIN, CoverDevice
-from homeassistant.components.isy994 import (
-    ISY994_NODES, ISY994_PROGRAMS, ISYDevice)
 from homeassistant.const import (
     STATE_CLOSED, STATE_CLOSING, STATE_OPEN, STATE_OPENING, STATE_UNKNOWN)
 from homeassistant.helpers.typing import ConfigType
 
+from . import ISY994_NODES, ISY994_PROGRAMS, ISYDevice
+
 _LOGGER = logging.getLogger(__name__)
 
 VALUE_TO_STATE = {
diff --git a/homeassistant/components/isy994/fan.py b/homeassistant/components/isy994/fan.py
index 142eaedd6..5a21a28fd 100644
--- a/homeassistant/components/isy994/fan.py
+++ b/homeassistant/components/isy994/fan.py
@@ -5,10 +5,10 @@ from typing import Callable
 from homeassistant.components.fan import (
     DOMAIN, SPEED_HIGH, SPEED_LOW, SPEED_MEDIUM, SPEED_OFF, SUPPORT_SET_SPEED,
     FanEntity)
-from homeassistant.components.isy994 import (
-    ISY994_NODES, ISY994_PROGRAMS, ISYDevice)
 from homeassistant.helpers.typing import ConfigType
 
+from . import ISY994_NODES, ISY994_PROGRAMS, ISYDevice
+
 _LOGGER = logging.getLogger(__name__)
 
 VALUE_TO_STATE = {
diff --git a/homeassistant/components/isy994/light.py b/homeassistant/components/isy994/light.py
index cc39a6d1a..0ac50a5f3 100644
--- a/homeassistant/components/isy994/light.py
+++ b/homeassistant/components/isy994/light.py
@@ -2,10 +2,11 @@
 import logging
 from typing import Callable
 
-from homeassistant.components.isy994 import ISY994_NODES, ISYDevice
 from homeassistant.components.light import DOMAIN, SUPPORT_BRIGHTNESS, Light
 from homeassistant.helpers.typing import ConfigType
 
+from . import ISY994_NODES, ISYDevice
+
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/isy994/lock.py b/homeassistant/components/isy994/lock.py
index a2e8b1a1e..92cb317ed 100644
--- a/homeassistant/components/isy994/lock.py
+++ b/homeassistant/components/isy994/lock.py
@@ -2,12 +2,12 @@
 import logging
 from typing import Callable
 
-from homeassistant.components.isy994 import (
-    ISY994_NODES, ISY994_PROGRAMS, ISYDevice)
 from homeassistant.components.lock import DOMAIN, LockDevice
 from homeassistant.const import STATE_LOCKED, STATE_UNKNOWN, STATE_UNLOCKED
 from homeassistant.helpers.typing import ConfigType
 
+from . import ISY994_NODES, ISY994_PROGRAMS, ISYDevice
+
 _LOGGER = logging.getLogger(__name__)
 
 VALUE_TO_STATE = {
diff --git a/homeassistant/components/isy994/sensor.py b/homeassistant/components/isy994/sensor.py
index 2115c19f4..43c016ed4 100644
--- a/homeassistant/components/isy994/sensor.py
+++ b/homeassistant/components/isy994/sensor.py
@@ -2,13 +2,13 @@
 import logging
 from typing import Callable
 
-from homeassistant.components.isy994 import (
-    ISY994_NODES, ISY994_WEATHER, ISYDevice)
 from homeassistant.components.sensor import DOMAIN
 from homeassistant.const import (
-    TEMP_CELSIUS, TEMP_FAHRENHEIT, UNIT_UV_INDEX, POWER_WATT)
+    POWER_WATT, TEMP_CELSIUS, TEMP_FAHRENHEIT, UNIT_UV_INDEX)
 from homeassistant.helpers.typing import ConfigType
 
+from . import ISY994_NODES, ISY994_WEATHER, ISYDevice
+
 _LOGGER = logging.getLogger(__name__)
 
 UOM_FRIENDLY_NAME = {
diff --git a/homeassistant/components/isy994/switch.py b/homeassistant/components/isy994/switch.py
index 96f17c80b..5f0acd1b1 100644
--- a/homeassistant/components/isy994/switch.py
+++ b/homeassistant/components/isy994/switch.py
@@ -2,11 +2,11 @@
 import logging
 from typing import Callable
 
-from homeassistant.components.isy994 import (
-    ISY994_NODES, ISY994_PROGRAMS, ISYDevice)
 from homeassistant.components.switch import DOMAIN, SwitchDevice
 from homeassistant.helpers.typing import ConfigType
 
+from . import ISY994_NODES, ISY994_PROGRAMS, ISYDevice
+
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/juicenet/sensor.py b/homeassistant/components/juicenet/sensor.py
index 00b183fca..6b55e5395 100644
--- a/homeassistant/components/juicenet/sensor.py
+++ b/homeassistant/components/juicenet/sensor.py
@@ -1,9 +1,10 @@
 """Support for monitoring juicenet/juicepoint/juicebox based EVSE sensors."""
 import logging
 
-from homeassistant.const import TEMP_CELSIUS, POWER_WATT, ENERGY_WATT_HOUR
+from homeassistant.const import ENERGY_WATT_HOUR, POWER_WATT, TEMP_CELSIUS
 from homeassistant.helpers.entity import Entity
-from homeassistant.components.juicenet import JuicenetDevice, DOMAIN
+
+from . import DOMAIN, JuicenetDevice
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/knx/binary_sensor.py b/homeassistant/components/knx/binary_sensor.py
index c84e5820f..8ee21e24c 100644
--- a/homeassistant/components/knx/binary_sensor.py
+++ b/homeassistant/components/knx/binary_sensor.py
@@ -3,12 +3,12 @@ import voluptuous as vol
 
 from homeassistant.components.binary_sensor import (
     PLATFORM_SCHEMA, BinarySensorDevice)
-from homeassistant.components.knx import (
-    ATTR_DISCOVER_DEVICES, DATA_KNX, KNXAutomation)
 from homeassistant.const import CONF_ADDRESS, CONF_DEVICE_CLASS, CONF_NAME
 from homeassistant.core import callback
 import homeassistant.helpers.config_validation as cv
 
+from . import ATTR_DISCOVER_DEVICES, DATA_KNX, KNXAutomation
+
 CONF_SIGNIFICANT_BIT = 'significant_bit'
 CONF_DEFAULT_SIGNIFICANT_BIT = 1
 CONF_AUTOMATION = 'automation'
diff --git a/homeassistant/components/knx/climate.py b/homeassistant/components/knx/climate.py
index 921b2936d..e11e54493 100644
--- a/homeassistant/components/knx/climate.py
+++ b/homeassistant/components/knx/climate.py
@@ -5,11 +5,12 @@ from homeassistant.components.climate import PLATFORM_SCHEMA, ClimateDevice
 from homeassistant.components.climate.const import (
     STATE_DRY, STATE_ECO, STATE_FAN_ONLY, STATE_HEAT, STATE_IDLE, STATE_MANUAL,
     SUPPORT_ON_OFF, SUPPORT_OPERATION_MODE, SUPPORT_TARGET_TEMPERATURE)
-from homeassistant.components.knx import ATTR_DISCOVER_DEVICES, DATA_KNX
 from homeassistant.const import ATTR_TEMPERATURE, CONF_NAME, TEMP_CELSIUS
 from homeassistant.core import callback
 import homeassistant.helpers.config_validation as cv
 
+from . import ATTR_DISCOVER_DEVICES, DATA_KNX
+
 CONF_SETPOINT_SHIFT_ADDRESS = 'setpoint_shift_address'
 CONF_SETPOINT_SHIFT_STATE_ADDRESS = 'setpoint_shift_state_address'
 CONF_SETPOINT_SHIFT_STEP = 'setpoint_shift_step'
diff --git a/homeassistant/components/knx/cover.py b/homeassistant/components/knx/cover.py
index 9423983f9..b2b287d1e 100644
--- a/homeassistant/components/knx/cover.py
+++ b/homeassistant/components/knx/cover.py
@@ -5,12 +5,13 @@ from homeassistant.components.cover import (
     ATTR_POSITION, ATTR_TILT_POSITION, PLATFORM_SCHEMA, SUPPORT_CLOSE,
     SUPPORT_OPEN, SUPPORT_SET_POSITION, SUPPORT_SET_TILT_POSITION,
     SUPPORT_STOP, CoverDevice)
-from homeassistant.components.knx import ATTR_DISCOVER_DEVICES, DATA_KNX
 from homeassistant.const import CONF_NAME
 from homeassistant.core import callback
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.event import async_track_utc_time_change
 
+from . import ATTR_DISCOVER_DEVICES, DATA_KNX
+
 CONF_MOVE_LONG_ADDRESS = 'move_long_address'
 CONF_MOVE_SHORT_ADDRESS = 'move_short_address'
 CONF_POSITION_ADDRESS = 'position_address'
diff --git a/homeassistant/components/knx/light.py b/homeassistant/components/knx/light.py
index baba7edd2..cf59f1fc1 100644
--- a/homeassistant/components/knx/light.py
+++ b/homeassistant/components/knx/light.py
@@ -3,7 +3,6 @@ from enum import Enum
 
 import voluptuous as vol
 
-from homeassistant.components.knx import ATTR_DISCOVER_DEVICES, DATA_KNX
 from homeassistant.components.light import (
     ATTR_BRIGHTNESS, ATTR_COLOR_TEMP, ATTR_HS_COLOR, PLATFORM_SCHEMA,
     SUPPORT_BRIGHTNESS, SUPPORT_COLOR, SUPPORT_COLOR_TEMP, Light)
@@ -12,6 +11,8 @@ from homeassistant.core import callback
 import homeassistant.helpers.config_validation as cv
 import homeassistant.util.color as color_util
 
+from . import ATTR_DISCOVER_DEVICES, DATA_KNX
+
 CONF_STATE_ADDRESS = 'state_address'
 CONF_BRIGHTNESS_ADDRESS = 'brightness_address'
 CONF_BRIGHTNESS_STATE_ADDRESS = 'brightness_state_address'
diff --git a/homeassistant/components/knx/notify.py b/homeassistant/components/knx/notify.py
index 1e1d7f185..742252d18 100644
--- a/homeassistant/components/knx/notify.py
+++ b/homeassistant/components/knx/notify.py
@@ -1,13 +1,14 @@
 """Support for KNX/IP notification services."""
 import voluptuous as vol
 
-from homeassistant.components.knx import ATTR_DISCOVER_DEVICES, DATA_KNX
 from homeassistant.components.notify import (
     PLATFORM_SCHEMA, BaseNotificationService)
 from homeassistant.const import CONF_ADDRESS, CONF_NAME
 from homeassistant.core import callback
 import homeassistant.helpers.config_validation as cv
 
+from . import ATTR_DISCOVER_DEVICES, DATA_KNX
+
 DEFAULT_NAME = 'KNX Notify'
 
 DEPENDENCIES = ['knx']
diff --git a/homeassistant/components/knx/scene.py b/homeassistant/components/knx/scene.py
index b1bb2bf31..4bf186c28 100644
--- a/homeassistant/components/knx/scene.py
+++ b/homeassistant/components/knx/scene.py
@@ -1,12 +1,13 @@
 """Support for KNX scenes."""
 import voluptuous as vol
 
-from homeassistant.components.knx import ATTR_DISCOVER_DEVICES, DATA_KNX
 from homeassistant.components.scene import CONF_PLATFORM, Scene
 from homeassistant.const import CONF_ADDRESS, CONF_NAME
 from homeassistant.core import callback
 import homeassistant.helpers.config_validation as cv
 
+from . import ATTR_DISCOVER_DEVICES, DATA_KNX
+
 CONF_SCENE_NUMBER = 'scene_number'
 
 DEFAULT_NAME = 'KNX SCENE'
diff --git a/homeassistant/components/knx/sensor.py b/homeassistant/components/knx/sensor.py
index abbb61e15..7ddafe53b 100644
--- a/homeassistant/components/knx/sensor.py
+++ b/homeassistant/components/knx/sensor.py
@@ -1,13 +1,14 @@
 """Support for KNX/IP sensors."""
 import voluptuous as vol
 
-from homeassistant.components.knx import ATTR_DISCOVER_DEVICES, DATA_KNX
 from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import CONF_ADDRESS, CONF_NAME, CONF_TYPE
 from homeassistant.core import callback
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
+from . import ATTR_DISCOVER_DEVICES, DATA_KNX
+
 DEFAULT_NAME = 'KNX Sensor'
 DEPENDENCIES = ['knx']
 
diff --git a/homeassistant/components/knx/switch.py b/homeassistant/components/knx/switch.py
index cef14fb74..e3beff396 100644
--- a/homeassistant/components/knx/switch.py
+++ b/homeassistant/components/knx/switch.py
@@ -1,12 +1,13 @@
 """Support for KNX/IP switches."""
 import voluptuous as vol
 
-from homeassistant.components.knx import ATTR_DISCOVER_DEVICES, DATA_KNX
 from homeassistant.components.switch import PLATFORM_SCHEMA, SwitchDevice
 from homeassistant.const import CONF_ADDRESS, CONF_NAME
 from homeassistant.core import callback
 import homeassistant.helpers.config_validation as cv
 
+from . import ATTR_DISCOVER_DEVICES, DATA_KNX
+
 CONF_STATE_ADDRESS = 'state_address'
 
 DEFAULT_NAME = 'KNX Switch'
diff --git a/homeassistant/components/konnected/binary_sensor.py b/homeassistant/components/konnected/binary_sensor.py
index a47f81b95..1fbfbea18 100644
--- a/homeassistant/components/konnected/binary_sensor.py
+++ b/homeassistant/components/konnected/binary_sensor.py
@@ -2,14 +2,14 @@
 import logging
 
 from homeassistant.components.binary_sensor import BinarySensorDevice
-from homeassistant.components.konnected import (
-    DOMAIN as KONNECTED_DOMAIN, PIN_TO_ZONE, SIGNAL_SENSOR_UPDATE)
 from homeassistant.const import (
-    CONF_DEVICES, CONF_TYPE, CONF_NAME, CONF_BINARY_SENSORS, ATTR_ENTITY_ID,
-    ATTR_STATE)
+    ATTR_ENTITY_ID, ATTR_STATE, CONF_BINARY_SENSORS, CONF_DEVICES, CONF_NAME,
+    CONF_TYPE)
 from homeassistant.core import callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
+from . import DOMAIN as KONNECTED_DOMAIN, PIN_TO_ZONE, SIGNAL_SENSOR_UPDATE
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['konnected']
diff --git a/homeassistant/components/konnected/sensor.py b/homeassistant/components/konnected/sensor.py
index eb3f55113..a48d1a586 100644
--- a/homeassistant/components/konnected/sensor.py
+++ b/homeassistant/components/konnected/sensor.py
@@ -1,15 +1,16 @@
 """Support for DHT and DS18B20 sensors attached to a Konnected device."""
 import logging
 
-from homeassistant.components.konnected.const import (
-    DOMAIN as KONNECTED_DOMAIN, SIGNAL_DS18B20_NEW, SIGNAL_SENSOR_UPDATE)
 from homeassistant.const import (
-    CONF_DEVICES, CONF_PIN, CONF_TYPE, CONF_NAME, CONF_SENSORS,
+    CONF_DEVICES, CONF_NAME, CONF_PIN, CONF_SENSORS, CONF_TYPE,
     DEVICE_CLASS_HUMIDITY, DEVICE_CLASS_TEMPERATURE, TEMP_CELSIUS)
 from homeassistant.core import callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.helpers.entity import Entity
 
+from .const import (
+    DOMAIN as KONNECTED_DOMAIN, SIGNAL_DS18B20_NEW, SIGNAL_SENSOR_UPDATE)
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['konnected']
diff --git a/homeassistant/components/konnected/switch.py b/homeassistant/components/konnected/switch.py
index 1a4b49529..dfb135e19 100644
--- a/homeassistant/components/konnected/switch.py
+++ b/homeassistant/components/konnected/switch.py
@@ -1,12 +1,13 @@
 """Support for wired switches attached to a Konnected device."""
 import logging
 
-from homeassistant.components.konnected import (
-    DOMAIN as KONNECTED_DOMAIN, PIN_TO_ZONE, CONF_ACTIVATION, CONF_MOMENTARY,
-    CONF_PAUSE, CONF_REPEAT, STATE_LOW, STATE_HIGH)
-from homeassistant.helpers.entity import ToggleEntity
 from homeassistant.const import (
     ATTR_STATE, CONF_DEVICES, CONF_NAME, CONF_PIN, CONF_SWITCHES)
+from homeassistant.helpers.entity import ToggleEntity
+
+from . import (
+    CONF_ACTIVATION, CONF_MOMENTARY, CONF_PAUSE, CONF_REPEAT,
+    DOMAIN as KONNECTED_DOMAIN, PIN_TO_ZONE, STATE_HIGH, STATE_LOW)
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/lametric/notify.py b/homeassistant/components/lametric/notify.py
index 9903676d9..358bb056b 100644
--- a/homeassistant/components/lametric/notify.py
+++ b/homeassistant/components/lametric/notify.py
@@ -5,11 +5,11 @@ from requests.exceptions import ConnectionError as RequestsConnectionError
 import voluptuous as vol
 
 from homeassistant.components.notify import (
-    ATTR_TARGET, ATTR_DATA, PLATFORM_SCHEMA, BaseNotificationService)
+    ATTR_DATA, ATTR_TARGET, PLATFORM_SCHEMA, BaseNotificationService)
 from homeassistant.const import CONF_ICON
 import homeassistant.helpers.config_validation as cv
 
-from homeassistant.components.lametric import DOMAIN as LAMETRIC_DOMAIN
+from . import DOMAIN as LAMETRIC_DOMAIN
 
 REQUIREMENTS = ['lmnotify==0.0.4']
 
diff --git a/homeassistant/components/lcn/__init__.py b/homeassistant/components/lcn/__init__.py
index 6b9956434..e380c2bb4 100644
--- a/homeassistant/components/lcn/__init__.py
+++ b/homeassistant/components/lcn/__init__.py
@@ -3,12 +3,6 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.components.lcn.const import (
-    CONF_CONNECTIONS, CONF_DIM_MODE, CONF_DIMMABLE, CONF_MOTOR, CONF_OUTPUT,
-    CONF_SK_NUM_TRIES, CONF_SOURCE, CONF_TRANSITION, DATA_LCN, DEFAULT_NAME,
-    DIM_MODES, DOMAIN, LED_PORTS, LOGICOP_PORTS, MOTOR_PORTS, OUTPUT_PORTS,
-    PATTERN_ADDRESS, RELAY_PORTS, S0_INPUTS, SETPOINTS, THRESHOLDS, VAR_UNITS,
-    VARIABLES)
 from homeassistant.const import (
     CONF_ADDRESS, CONF_COVERS, CONF_HOST, CONF_LIGHTS, CONF_NAME,
     CONF_PASSWORD, CONF_PORT, CONF_SENSORS, CONF_SWITCHES,
@@ -17,6 +11,13 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.discovery import async_load_platform
 from homeassistant.helpers.entity import Entity
 
+from .const import (
+    CONF_CONNECTIONS, CONF_DIM_MODE, CONF_DIMMABLE, CONF_MOTOR, CONF_OUTPUT,
+    CONF_SK_NUM_TRIES, CONF_SOURCE, CONF_TRANSITION, DATA_LCN, DEFAULT_NAME,
+    DIM_MODES, DOMAIN, LED_PORTS, LOGICOP_PORTS, MOTOR_PORTS, OUTPUT_PORTS,
+    PATTERN_ADDRESS, RELAY_PORTS, S0_INPUTS, SETPOINTS, THRESHOLDS, VAR_UNITS,
+    VARIABLES)
+
 _LOGGER = logging.getLogger(__name__)
 
 REQUIREMENTS = ['pypck==0.5.9']
diff --git a/homeassistant/components/lcn/cover.py b/homeassistant/components/lcn/cover.py
index 4b4542fd6..a32ff7c23 100755
--- a/homeassistant/components/lcn/cover.py
+++ b/homeassistant/components/lcn/cover.py
@@ -1,10 +1,10 @@
 """Support for LCN covers."""
 from homeassistant.components.cover import CoverDevice
-from homeassistant.components.lcn import LcnDevice, get_connection
-from homeassistant.components.lcn.const import (
-    CONF_CONNECTIONS, CONF_MOTOR, DATA_LCN)
 from homeassistant.const import CONF_ADDRESS
 
+from . import LcnDevice, get_connection
+from .const import CONF_CONNECTIONS, CONF_MOTOR, DATA_LCN
+
 DEPENDENCIES = ['lcn']
 
 
diff --git a/homeassistant/components/lcn/light.py b/homeassistant/components/lcn/light.py
index 5f1008cbd..00b782593 100644
--- a/homeassistant/components/lcn/light.py
+++ b/homeassistant/components/lcn/light.py
@@ -1,13 +1,14 @@
 """Support for LCN lights."""
-from homeassistant.components.lcn import LcnDevice, get_connection
-from homeassistant.components.lcn.const import (
-    CONF_CONNECTIONS, CONF_DIMMABLE, CONF_OUTPUT, CONF_TRANSITION, DATA_LCN,
-    OUTPUT_PORTS)
 from homeassistant.components.light import (
     ATTR_BRIGHTNESS, ATTR_TRANSITION, SUPPORT_BRIGHTNESS, SUPPORT_TRANSITION,
     Light)
 from homeassistant.const import CONF_ADDRESS
 
+from . import LcnDevice, get_connection
+from .const import (
+    CONF_CONNECTIONS, CONF_DIMMABLE, CONF_OUTPUT, CONF_TRANSITION, DATA_LCN,
+    OUTPUT_PORTS)
+
 DEPENDENCIES = ['lcn']
 
 
diff --git a/homeassistant/components/lcn/sensor.py b/homeassistant/components/lcn/sensor.py
index e56c42de0..5e50d092a 100755
--- a/homeassistant/components/lcn/sensor.py
+++ b/homeassistant/components/lcn/sensor.py
@@ -1,9 +1,10 @@
 """Support for LCN sensors."""
-from homeassistant.components.lcn import LcnDevice, get_connection
-from homeassistant.components.lcn.const import (
+from homeassistant.const import CONF_ADDRESS, CONF_UNIT_OF_MEASUREMENT
+
+from . import LcnDevice, get_connection
+from .const import (
     CONF_CONNECTIONS, CONF_SOURCE, DATA_LCN, LED_PORTS, S0_INPUTS, SETPOINTS,
     THRESHOLDS, VARIABLES)
-from homeassistant.const import CONF_ADDRESS, CONF_UNIT_OF_MEASUREMENT
 
 DEPENDENCIES = ['lcn']
 
diff --git a/homeassistant/components/lcn/switch.py b/homeassistant/components/lcn/switch.py
index 09f35d267..7c375f4a5 100755
--- a/homeassistant/components/lcn/switch.py
+++ b/homeassistant/components/lcn/switch.py
@@ -1,10 +1,10 @@
 """Support for LCN switches."""
-from homeassistant.components.lcn import LcnDevice, get_connection
-from homeassistant.components.lcn.const import (
-    CONF_CONNECTIONS, CONF_OUTPUT, DATA_LCN, OUTPUT_PORTS)
 from homeassistant.components.switch import SwitchDevice
 from homeassistant.const import CONF_ADDRESS
 
+from . import LcnDevice, get_connection
+from .const import CONF_CONNECTIONS, CONF_OUTPUT, DATA_LCN, OUTPUT_PORTS
+
 DEPENDENCIES = ['lcn']
 
 
diff --git a/homeassistant/components/lifx/light.py b/homeassistant/components/lifx/light.py
index 19a9f7583..014ca9ae6 100644
--- a/homeassistant/components/lifx/light.py
+++ b/homeassistant/components/lifx/light.py
@@ -16,9 +16,6 @@ from homeassistant.components.light import (
     SUPPORT_BRIGHTNESS, SUPPORT_COLOR, SUPPORT_COLOR_TEMP, SUPPORT_EFFECT,
     SUPPORT_TRANSITION, VALID_BRIGHTNESS, VALID_BRIGHTNESS_PCT, Light,
     preprocess_turn_on_alternatives)
-from homeassistant.components.lifx import (
-    DOMAIN as LIFX_DOMAIN, DATA_LIFX_MANAGER, CONF_SERVER, CONF_PORT,
-    CONF_BROADCAST)
 from homeassistant.const import ATTR_ENTITY_ID, EVENT_HOMEASSISTANT_STOP
 from homeassistant.core import callback
 import homeassistant.helpers.config_validation as cv
@@ -27,6 +24,10 @@ from homeassistant.helpers.event import async_track_point_in_utc_time
 from homeassistant.helpers.service import async_extract_entity_ids
 import homeassistant.util.color as color_util
 
+from . import (
+    CONF_BROADCAST, CONF_PORT, CONF_SERVER, DATA_LIFX_MANAGER,
+    DOMAIN as LIFX_DOMAIN)
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['lifx']
diff --git a/homeassistant/components/light/demo.py b/homeassistant/components/light/demo.py
index 980d84917..d9affb03d 100644
--- a/homeassistant/components/light/demo.py
+++ b/homeassistant/components/light/demo.py
@@ -6,10 +6,10 @@ https://home-assistant.io/components/demo/
 """
 import random
 
-from homeassistant.components.light import (
+from . import (
     ATTR_BRIGHTNESS, ATTR_COLOR_TEMP, ATTR_EFFECT, ATTR_HS_COLOR,
-    ATTR_WHITE_VALUE, SUPPORT_BRIGHTNESS, SUPPORT_COLOR_TEMP, SUPPORT_EFFECT,
-    SUPPORT_COLOR, SUPPORT_WHITE_VALUE, Light)
+    ATTR_WHITE_VALUE, SUPPORT_BRIGHTNESS, SUPPORT_COLOR, SUPPORT_COLOR_TEMP,
+    SUPPORT_EFFECT, SUPPORT_WHITE_VALUE, Light)
 
 LIGHT_COLORS = [
     (56, 86),
diff --git a/homeassistant/components/light/group.py b/homeassistant/components/light/group.py
index bf54d3ecf..7e9d11d3a 100644
--- a/homeassistant/components/light/group.py
+++ b/homeassistant/components/light/group.py
@@ -4,27 +4,28 @@ This platform allows several lights to be grouped into one light.
 For more details about this platform, please refer to the documentation at
 https://home-assistant.io/components/light.group/
 """
-import logging
-import itertools
-from typing import List, Tuple, Optional, Iterator, Any, Callable
 from collections import Counter
+import itertools
+import logging
+from typing import Any, Callable, Iterator, List, Optional, Tuple
 
 import voluptuous as vol
 
-from homeassistant.core import State, callback
 from homeassistant.components import light
-from homeassistant.const import (STATE_ON, ATTR_ENTITY_ID, CONF_NAME,
-                                 CONF_ENTITIES, STATE_UNAVAILABLE,
-                                 ATTR_SUPPORTED_FEATURES)
-from homeassistant.helpers.event import async_track_state_change
-from homeassistant.helpers.typing import HomeAssistantType, ConfigType
-from homeassistant.components.light import (
-    SUPPORT_BRIGHTNESS, SUPPORT_COLOR, SUPPORT_COLOR_TEMP, SUPPORT_TRANSITION,
-    SUPPORT_EFFECT, SUPPORT_FLASH, SUPPORT_WHITE_VALUE, PLATFORM_SCHEMA,
-    ATTR_BRIGHTNESS, ATTR_HS_COLOR, ATTR_WHITE_VALUE, ATTR_COLOR_TEMP,
-    ATTR_MIN_MIREDS, ATTR_MAX_MIREDS, ATTR_EFFECT_LIST, ATTR_EFFECT,
-    ATTR_FLASH, ATTR_TRANSITION)
+from homeassistant.const import (
+    ATTR_ENTITY_ID, ATTR_SUPPORTED_FEATURES, CONF_ENTITIES, CONF_NAME,
+    STATE_ON, STATE_UNAVAILABLE)
+from homeassistant.core import State, callback
 import homeassistant.helpers.config_validation as cv
+from homeassistant.helpers.event import async_track_state_change
+from homeassistant.helpers.typing import ConfigType, HomeAssistantType
+
+from . import (
+    ATTR_BRIGHTNESS, ATTR_COLOR_TEMP, ATTR_EFFECT, ATTR_EFFECT_LIST,
+    ATTR_FLASH, ATTR_HS_COLOR, ATTR_MAX_MIREDS, ATTR_MIN_MIREDS,
+    ATTR_TRANSITION, ATTR_WHITE_VALUE, PLATFORM_SCHEMA, SUPPORT_BRIGHTNESS,
+    SUPPORT_COLOR, SUPPORT_COLOR_TEMP, SUPPORT_EFFECT, SUPPORT_FLASH,
+    SUPPORT_TRANSITION, SUPPORT_WHITE_VALUE)
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/light/switch.py b/homeassistant/components/light/switch.py
index de6247a27..4b4f33133 100644
--- a/homeassistant/components/light/switch.py
+++ b/homeassistant/components/light/switch.py
@@ -5,22 +5,18 @@ For more information about this platform, please refer to the documentation at
 https://home-assistant.io/components/light.switch/
 """
 import logging
+
 import voluptuous as vol
 
-from homeassistant.core import State, callback
-from homeassistant.components.light import (
-    Light, PLATFORM_SCHEMA)
 from homeassistant.components import switch
 from homeassistant.const import (
-    STATE_ON,
-    ATTR_ENTITY_ID,
-    CONF_NAME,
-    CONF_ENTITY_ID,
-    STATE_UNAVAILABLE
-)
-from homeassistant.helpers.typing import HomeAssistantType, ConfigType
-from homeassistant.helpers.event import async_track_state_change
+    ATTR_ENTITY_ID, CONF_ENTITY_ID, CONF_NAME, STATE_ON, STATE_UNAVAILABLE)
+from homeassistant.core import State, callback
 import homeassistant.helpers.config_validation as cv
+from homeassistant.helpers.event import async_track_state_change
+from homeassistant.helpers.typing import ConfigType, HomeAssistantType
+
+from . import PLATFORM_SCHEMA, Light
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/lightwave/light.py b/homeassistant/components/lightwave/light.py
index 1dfbac37c..f22533d25 100644
--- a/homeassistant/components/lightwave/light.py
+++ b/homeassistant/components/lightwave/light.py
@@ -1,9 +1,10 @@
 """Support for LightwaveRF lights."""
 from homeassistant.components.light import (
     ATTR_BRIGHTNESS, SUPPORT_BRIGHTNESS, Light)
-from homeassistant.components.lightwave import LIGHTWAVE_LINK
 from homeassistant.const import CONF_NAME
 
+from . import LIGHTWAVE_LINK
+
 DEPENDENCIES = ['lightwave']
 
 MAX_BRIGHTNESS = 255
diff --git a/homeassistant/components/lightwave/switch.py b/homeassistant/components/lightwave/switch.py
index d6c00b7fd..dfa93b4b1 100644
--- a/homeassistant/components/lightwave/switch.py
+++ b/homeassistant/components/lightwave/switch.py
@@ -1,8 +1,9 @@
 """Support for LightwaveRF switches."""
-from homeassistant.components.lightwave import LIGHTWAVE_LINK
 from homeassistant.components.switch import SwitchDevice
 from homeassistant.const import CONF_NAME
 
+from . import LIGHTWAVE_LINK
+
 DEPENDENCIES = ['lightwave']
 
 
diff --git a/homeassistant/components/linode/binary_sensor.py b/homeassistant/components/linode/binary_sensor.py
index a05681497..19455917d 100644
--- a/homeassistant/components/linode/binary_sensor.py
+++ b/homeassistant/components/linode/binary_sensor.py
@@ -5,11 +5,12 @@ import voluptuous as vol
 
 from homeassistant.components.binary_sensor import (
     PLATFORM_SCHEMA, BinarySensorDevice)
-from homeassistant.components.linode import (
+import homeassistant.helpers.config_validation as cv
+
+from . import (
     ATTR_CREATED, ATTR_IPV4_ADDRESS, ATTR_IPV6_ADDRESS, ATTR_MEMORY,
     ATTR_NODE_ID, ATTR_NODE_NAME, ATTR_REGION, ATTR_VCPUS, CONF_NODES,
     DATA_LINODE)
-import homeassistant.helpers.config_validation as cv
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/linode/switch.py b/homeassistant/components/linode/switch.py
index 0cab2f4d0..e5f97ef75 100644
--- a/homeassistant/components/linode/switch.py
+++ b/homeassistant/components/linode/switch.py
@@ -3,12 +3,13 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.components.linode import (
+from homeassistant.components.switch import PLATFORM_SCHEMA, SwitchDevice
+import homeassistant.helpers.config_validation as cv
+
+from . import (
     ATTR_CREATED, ATTR_IPV4_ADDRESS, ATTR_IPV6_ADDRESS, ATTR_MEMORY,
     ATTR_NODE_ID, ATTR_NODE_NAME, ATTR_REGION, ATTR_VCPUS, CONF_NODES,
     DATA_LINODE)
-from homeassistant.components.switch import PLATFORM_SCHEMA, SwitchDevice
-import homeassistant.helpers.config_validation as cv
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/locative/device_tracker.py b/homeassistant/components/locative/device_tracker.py
index 78090914b..9dbf7e74f 100644
--- a/homeassistant/components/locative/device_tracker.py
+++ b/homeassistant/components/locative/device_tracker.py
@@ -6,13 +6,13 @@ https://home-assistant.io/components/device_tracker.locative/
 """
 import logging
 
-from homeassistant.components.device_tracker import \
-    DOMAIN as DEVICE_TRACKER_DOMAIN
-from homeassistant.components.locative import DOMAIN as LOCATIVE_DOMAIN
-from homeassistant.components.locative import TRACKER_UPDATE
+from homeassistant.components.device_tracker import (
+    DOMAIN as DEVICE_TRACKER_DOMAIN)
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.util import slugify
 
+from . import DOMAIN as LOCATIVE_DOMAIN, TRACKER_UPDATE
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['locative']
diff --git a/homeassistant/components/lock/demo.py b/homeassistant/components/lock/demo.py
index a0cc45991..94a67fb87 100644
--- a/homeassistant/components/lock/demo.py
+++ b/homeassistant/components/lock/demo.py
@@ -4,8 +4,9 @@ Demo lock platform that has two fake locks.
 For more details about this platform, please refer to the documentation
 https://home-assistant.io/components/demo/
 """
-from homeassistant.components.lock import LockDevice, SUPPORT_OPEN
-from homeassistant.const import (STATE_LOCKED, STATE_UNLOCKED)
+from homeassistant.const import STATE_LOCKED, STATE_UNLOCKED
+
+from . import SUPPORT_OPEN, LockDevice
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/logi_circle/camera.py b/homeassistant/components/logi_circle/camera.py
index 4f349dd98..814475d04 100644
--- a/homeassistant/components/logi_circle/camera.py
+++ b/homeassistant/components/logi_circle/camera.py
@@ -1,19 +1,19 @@
 """Support to the Logi Circle cameras."""
-import logging
 import asyncio
 from datetime import timedelta
+import logging
 
 import voluptuous as vol
 
-from homeassistant.helpers import config_validation as cv
-from homeassistant.components.logi_circle import (
-    DOMAIN as LOGI_CIRCLE_DOMAIN, ATTRIBUTION)
 from homeassistant.components.camera import (
-    Camera, PLATFORM_SCHEMA, CAMERA_SERVICE_SCHEMA, SUPPORT_ON_OFF,
-    ATTR_ENTITY_ID, ATTR_FILENAME, DOMAIN)
+    ATTR_ENTITY_ID, ATTR_FILENAME, CAMERA_SERVICE_SCHEMA, DOMAIN,
+    PLATFORM_SCHEMA, SUPPORT_ON_OFF, Camera)
 from homeassistant.const import (
     ATTR_ATTRIBUTION, ATTR_BATTERY_CHARGING, ATTR_BATTERY_LEVEL,
-    CONF_SCAN_INTERVAL, STATE_ON, STATE_OFF)
+    CONF_SCAN_INTERVAL, STATE_OFF, STATE_ON)
+from homeassistant.helpers import config_validation as cv
+
+from . import ATTRIBUTION, DOMAIN as LOGI_CIRCLE_DOMAIN
 
 DEPENDENCIES = ['logi_circle']
 
diff --git a/homeassistant/components/logi_circle/sensor.py b/homeassistant/components/logi_circle/sensor.py
index 483021909..06d1701a9 100644
--- a/homeassistant/components/logi_circle/sensor.py
+++ b/homeassistant/components/logi_circle/sensor.py
@@ -3,18 +3,18 @@ import logging
 
 import voluptuous as vol
 
-import homeassistant.helpers.config_validation as cv
-from homeassistant.components.logi_circle import (
-    ATTRIBUTION, DEFAULT_ENTITY_NAMESPACE, DOMAIN as LOGI_CIRCLE_DOMAIN)
 from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import (
-    ATTR_ATTRIBUTION, ATTR_BATTERY_CHARGING,
-    CONF_ENTITY_NAMESPACE, CONF_MONITORED_CONDITIONS,
-    STATE_ON, STATE_OFF)
+    ATTR_ATTRIBUTION, ATTR_BATTERY_CHARGING, CONF_ENTITY_NAMESPACE,
+    CONF_MONITORED_CONDITIONS, STATE_OFF, STATE_ON)
+import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.icon import icon_for_battery_level
 from homeassistant.util.dt import as_local
 
+from . import (
+    ATTRIBUTION, DEFAULT_ENTITY_NAMESPACE, DOMAIN as LOGI_CIRCLE_DOMAIN)
+
 DEPENDENCIES = ['logi_circle']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/luftdaten/sensor.py b/homeassistant/components/luftdaten/sensor.py
index 398ec30a3..107673bac 100644
--- a/homeassistant/components/luftdaten/sensor.py
+++ b/homeassistant/components/luftdaten/sensor.py
@@ -1,16 +1,17 @@
 """Support for Luftdaten sensors."""
 import logging
 
-from homeassistant.components.luftdaten import (
-    DATA_LUFTDATEN, DATA_LUFTDATEN_CLIENT, DEFAULT_ATTRIBUTION, DOMAIN,
-    SENSORS, TOPIC_UPDATE)
-from homeassistant.components.luftdaten.const import ATTR_SENSOR_ID
 from homeassistant.const import (
     ATTR_ATTRIBUTION, ATTR_LATITUDE, ATTR_LONGITUDE, CONF_SHOW_ON_MAP)
 from homeassistant.core import callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.helpers.entity import Entity
 
+from . import (
+    DATA_LUFTDATEN, DATA_LUFTDATEN_CLIENT, DEFAULT_ATTRIBUTION, DOMAIN,
+    SENSORS, TOPIC_UPDATE)
+from .const import ATTR_SENSOR_ID
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['luftdaten']
diff --git a/homeassistant/components/lupusec/alarm_control_panel.py b/homeassistant/components/lupusec/alarm_control_panel.py
index de62e5bfa..0a88f3bd5 100644
--- a/homeassistant/components/lupusec/alarm_control_panel.py
+++ b/homeassistant/components/lupusec/alarm_control_panel.py
@@ -2,12 +2,11 @@
 from datetime import timedelta
 
 from homeassistant.components.alarm_control_panel import AlarmControlPanel
-from homeassistant.components.lupusec import DOMAIN as LUPUSEC_DOMAIN
-from homeassistant.components.lupusec import LupusecDevice
-from homeassistant.const import (STATE_ALARM_ARMED_AWAY,
-                                 STATE_ALARM_ARMED_HOME,
-                                 STATE_ALARM_DISARMED,
-                                 STATE_ALARM_TRIGGERED)
+from homeassistant.const import (
+    STATE_ALARM_ARMED_AWAY, STATE_ALARM_ARMED_HOME, STATE_ALARM_DISARMED,
+    STATE_ALARM_TRIGGERED)
+
+from . import DOMAIN as LUPUSEC_DOMAIN, LupusecDevice
 
 DEPENDENCIES = ['lupusec']
 
diff --git a/homeassistant/components/lupusec/binary_sensor.py b/homeassistant/components/lupusec/binary_sensor.py
index 8a5e103db..2c3f5e0e0 100644
--- a/homeassistant/components/lupusec/binary_sensor.py
+++ b/homeassistant/components/lupusec/binary_sensor.py
@@ -1,11 +1,11 @@
 """Support for Lupusec Security System binary sensors."""
-import logging
 from datetime import timedelta
+import logging
 
-from homeassistant.components.lupusec import (LupusecDevice,
-                                              DOMAIN as LUPUSEC_DOMAIN)
-from homeassistant.components.binary_sensor import (BinarySensorDevice,
-                                                    DEVICE_CLASSES)
+from homeassistant.components.binary_sensor import (
+    DEVICE_CLASSES, BinarySensorDevice)
+
+from . import DOMAIN as LUPUSEC_DOMAIN, LupusecDevice
 
 DEPENDENCIES = ['lupusec']
 
diff --git a/homeassistant/components/lupusec/switch.py b/homeassistant/components/lupusec/switch.py
index 8a30d65fe..0d86ea0a3 100644
--- a/homeassistant/components/lupusec/switch.py
+++ b/homeassistant/components/lupusec/switch.py
@@ -1,11 +1,11 @@
 """Support for Lupusec Security System switches."""
-import logging
 from datetime import timedelta
+import logging
 
-from homeassistant.components.lupusec import (LupusecDevice,
-                                              DOMAIN as LUPUSEC_DOMAIN)
 from homeassistant.components.switch import SwitchDevice
 
+from . import DOMAIN as LUPUSEC_DOMAIN, LupusecDevice
+
 DEPENDENCIES = ['lupusec']
 
 SCAN_INTERVAL = timedelta(seconds=2)
diff --git a/homeassistant/components/lutron/cover.py b/homeassistant/components/lutron/cover.py
index cc7a57a55..da7f69095 100644
--- a/homeassistant/components/lutron/cover.py
+++ b/homeassistant/components/lutron/cover.py
@@ -2,10 +2,10 @@
 import logging
 
 from homeassistant.components.cover import (
-    CoverDevice, SUPPORT_OPEN, SUPPORT_CLOSE, SUPPORT_SET_POSITION,
-    ATTR_POSITION)
-from homeassistant.components.lutron import (
-    LutronDevice, LUTRON_DEVICES, LUTRON_CONTROLLER)
+    ATTR_POSITION, SUPPORT_CLOSE, SUPPORT_OPEN, SUPPORT_SET_POSITION,
+    CoverDevice)
+
+from . import LUTRON_CONTROLLER, LUTRON_DEVICES, LutronDevice
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/lutron/light.py b/homeassistant/components/lutron/light.py
index c0b3b9911..5f3fd4787 100644
--- a/homeassistant/components/lutron/light.py
+++ b/homeassistant/components/lutron/light.py
@@ -3,8 +3,8 @@ import logging
 
 from homeassistant.components.light import (
     ATTR_BRIGHTNESS, SUPPORT_BRIGHTNESS, Light)
-from homeassistant.components.lutron import (
-    LutronDevice, LUTRON_DEVICES, LUTRON_CONTROLLER)
+
+from . import LUTRON_CONTROLLER, LUTRON_DEVICES, LutronDevice
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/lutron/scene.py b/homeassistant/components/lutron/scene.py
index f9002f2a8..a2d18c6d2 100644
--- a/homeassistant/components/lutron/scene.py
+++ b/homeassistant/components/lutron/scene.py
@@ -1,10 +1,10 @@
 """Support for Lutron scenes."""
 import logging
 
-from homeassistant.components.lutron import (
-    LutronDevice, LUTRON_DEVICES, LUTRON_CONTROLLER)
 from homeassistant.components.scene import Scene
 
+from . import LUTRON_CONTROLLER, LUTRON_DEVICES, LutronDevice
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['lutron']
diff --git a/homeassistant/components/lutron/switch.py b/homeassistant/components/lutron/switch.py
index bfdb06be3..b42c0d930 100644
--- a/homeassistant/components/lutron/switch.py
+++ b/homeassistant/components/lutron/switch.py
@@ -2,8 +2,8 @@
 import logging
 
 from homeassistant.components.switch import SwitchDevice
-from homeassistant.components.lutron import (
-    LutronDevice, LUTRON_DEVICES, LUTRON_CONTROLLER)
+
+from . import LUTRON_CONTROLLER, LUTRON_DEVICES, LutronDevice
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/lutron_caseta/cover.py b/homeassistant/components/lutron_caseta/cover.py
index 5e09dcc3c..d970f5282 100644
--- a/homeassistant/components/lutron_caseta/cover.py
+++ b/homeassistant/components/lutron_caseta/cover.py
@@ -2,10 +2,10 @@
 import logging
 
 from homeassistant.components.cover import (
-    CoverDevice, SUPPORT_OPEN, SUPPORT_CLOSE, SUPPORT_SET_POSITION,
-    ATTR_POSITION, DOMAIN)
-from homeassistant.components.lutron_caseta import (
-    LUTRON_CASETA_SMARTBRIDGE, LutronCasetaDevice)
+    ATTR_POSITION, DOMAIN, SUPPORT_CLOSE, SUPPORT_OPEN, SUPPORT_SET_POSITION,
+    CoverDevice)
+
+from . import LUTRON_CASETA_SMARTBRIDGE, LutronCasetaDevice
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/lutron_caseta/light.py b/homeassistant/components/lutron_caseta/light.py
index 3bab781f3..d883da73c 100644
--- a/homeassistant/components/lutron_caseta/light.py
+++ b/homeassistant/components/lutron_caseta/light.py
@@ -2,11 +2,11 @@
 import logging
 
 from homeassistant.components.light import (
-    ATTR_BRIGHTNESS, SUPPORT_BRIGHTNESS, Light, DOMAIN)
+    ATTR_BRIGHTNESS, DOMAIN, SUPPORT_BRIGHTNESS, Light)
 from homeassistant.components.lutron.light import (
     to_hass_level, to_lutron_level)
-from homeassistant.components.lutron_caseta import (
-    LUTRON_CASETA_SMARTBRIDGE, LutronCasetaDevice)
+
+from . import LUTRON_CASETA_SMARTBRIDGE, LutronCasetaDevice
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/lutron_caseta/scene.py b/homeassistant/components/lutron_caseta/scene.py
index c6ca7bad3..2e7059a56 100644
--- a/homeassistant/components/lutron_caseta/scene.py
+++ b/homeassistant/components/lutron_caseta/scene.py
@@ -1,9 +1,10 @@
 """Support for Lutron Caseta scenes."""
 import logging
 
-from homeassistant.components.lutron_caseta import LUTRON_CASETA_SMARTBRIDGE
 from homeassistant.components.scene import Scene
 
+from . import LUTRON_CASETA_SMARTBRIDGE
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['lutron_caseta']
diff --git a/homeassistant/components/lutron_caseta/switch.py b/homeassistant/components/lutron_caseta/switch.py
index 0ef059518..54c670913 100644
--- a/homeassistant/components/lutron_caseta/switch.py
+++ b/homeassistant/components/lutron_caseta/switch.py
@@ -1,9 +1,9 @@
 """Support for Lutron Caseta switches."""
 import logging
 
-from homeassistant.components.lutron_caseta import (
-    LUTRON_CASETA_SMARTBRIDGE, LutronCasetaDevice)
-from homeassistant.components.switch import SwitchDevice, DOMAIN
+from homeassistant.components.switch import DOMAIN, SwitchDevice
+
+from . import LUTRON_CASETA_SMARTBRIDGE, LutronCasetaDevice
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/mailgun/notify.py b/homeassistant/components/mailgun/notify.py
index 05137254f..b9f5bf0b1 100644
--- a/homeassistant/components/mailgun/notify.py
+++ b/homeassistant/components/mailgun/notify.py
@@ -3,14 +3,14 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.components.mailgun import (
-    CONF_SANDBOX, DOMAIN as MAILGUN_DOMAIN)
 from homeassistant.components.notify import (
-    PLATFORM_SCHEMA, BaseNotificationService, ATTR_TITLE, ATTR_TITLE_DEFAULT,
-    ATTR_DATA)
+    ATTR_DATA, ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA,
+    BaseNotificationService)
 from homeassistant.const import (
     CONF_API_KEY, CONF_DOMAIN, CONF_RECIPIENT, CONF_SENDER)
 
+from . import CONF_SANDBOX, DOMAIN as MAILGUN_DOMAIN
+
 REQUIREMENTS = ['pymailgunner==1.4']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/maxcube/binary_sensor.py b/homeassistant/components/maxcube/binary_sensor.py
index 8d5ab84f6..6221b95d8 100644
--- a/homeassistant/components/maxcube/binary_sensor.py
+++ b/homeassistant/components/maxcube/binary_sensor.py
@@ -2,7 +2,8 @@
 import logging
 
 from homeassistant.components.binary_sensor import BinarySensorDevice
-from homeassistant.components.maxcube import DATA_KEY
+
+from . import DATA_KEY
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/maxcube/climate.py b/homeassistant/components/maxcube/climate.py
index 170a3ba34..c30ebc7d6 100644
--- a/homeassistant/components/maxcube/climate.py
+++ b/homeassistant/components/maxcube/climate.py
@@ -1,13 +1,13 @@
 """Support for MAX! Thermostats via MAX! Cube."""
-import socket
 import logging
+import socket
 
 from homeassistant.components.climate import ClimateDevice
 from homeassistant.components.climate.const import (
-    STATE_AUTO, SUPPORT_TARGET_TEMPERATURE,
-    SUPPORT_OPERATION_MODE)
-from homeassistant.components.maxcube import DATA_KEY
-from homeassistant.const import TEMP_CELSIUS, ATTR_TEMPERATURE
+    STATE_AUTO, SUPPORT_OPERATION_MODE, SUPPORT_TARGET_TEMPERATURE)
+from homeassistant.const import ATTR_TEMPERATURE, TEMP_CELSIUS
+
+from . import DATA_KEY
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/media_player/demo.py b/homeassistant/components/media_player/demo.py
index de455879d..070701f63 100644
--- a/homeassistant/components/media_player/demo.py
+++ b/homeassistant/components/media_player/demo.py
@@ -4,16 +4,16 @@ Demo implementation of the media player.
 For more details about this platform, please refer to the documentation
 https://home-assistant.io/components/demo/
 """
+from homeassistant.const import STATE_OFF, STATE_PAUSED, STATE_PLAYING
 import homeassistant.util.dt as dt_util
-from homeassistant.components.media_player import (
-    MediaPlayerDevice)
-from homeassistant.components.media_player.const import (
+
+from . import MediaPlayerDevice
+from .const import (
     MEDIA_TYPE_MOVIE, MEDIA_TYPE_MUSIC, MEDIA_TYPE_TVSHOW,
     SUPPORT_CLEAR_PLAYLIST, SUPPORT_NEXT_TRACK, SUPPORT_PAUSE, SUPPORT_PLAY,
     SUPPORT_PLAY_MEDIA, SUPPORT_PREVIOUS_TRACK, SUPPORT_SELECT_SOUND_MODE,
     SUPPORT_SELECT_SOURCE, SUPPORT_SHUFFLE_SET, SUPPORT_TURN_OFF,
     SUPPORT_TURN_ON, SUPPORT_VOLUME_MUTE, SUPPORT_VOLUME_SET)
-from homeassistant.const import STATE_OFF, STATE_PAUSED, STATE_PLAYING
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/melissa/climate.py b/homeassistant/components/melissa/climate.py
index b9eb28a61..0df294a14 100644
--- a/homeassistant/components/melissa/climate.py
+++ b/homeassistant/components/melissa/climate.py
@@ -8,16 +8,15 @@ import logging
 
 from homeassistant.components.climate import ClimateDevice
 from homeassistant.components.climate.const import (
-    SUPPORT_OPERATION_MODE, SUPPORT_TARGET_TEMPERATURE,
-    SUPPORT_ON_OFF, STATE_AUTO, STATE_HEAT, STATE_COOL, STATE_DRY,
-    STATE_FAN_ONLY, SUPPORT_FAN_MODE
-)
-from homeassistant.components.fan import SPEED_LOW, SPEED_MEDIUM, SPEED_HIGH
-from homeassistant.components.melissa import DATA_MELISSA
+    STATE_AUTO, STATE_COOL, STATE_DRY, STATE_FAN_ONLY, STATE_HEAT,
+    SUPPORT_FAN_MODE, SUPPORT_ON_OFF, SUPPORT_OPERATION_MODE,
+    SUPPORT_TARGET_TEMPERATURE)
+from homeassistant.components.fan import SPEED_HIGH, SPEED_LOW, SPEED_MEDIUM
 from homeassistant.const import (
-    TEMP_CELSIUS, STATE_ON, STATE_OFF, STATE_IDLE, ATTR_TEMPERATURE,
-    PRECISION_WHOLE
-)
+    ATTR_TEMPERATURE, PRECISION_WHOLE, STATE_IDLE, STATE_OFF, STATE_ON,
+    TEMP_CELSIUS)
+
+from . import DATA_MELISSA
 
 DEPENDENCIES = ['melissa']
 
diff --git a/homeassistant/components/meteo_france/sensor.py b/homeassistant/components/meteo_france/sensor.py
index f0ef92679..122b91cae 100644
--- a/homeassistant/components/meteo_france/sensor.py
+++ b/homeassistant/components/meteo_france/sensor.py
@@ -1,11 +1,11 @@
 """Support for Meteo-France raining forecast sensor."""
 import logging
 
-from homeassistant.components.meteo_france import (
-    ATTRIBUTION, CONF_CITY, DATA_METEO_FRANCE, SENSOR_TYPES)
 from homeassistant.const import ATTR_ATTRIBUTION, CONF_MONITORED_CONDITIONS
 from homeassistant.helpers.entity import Entity
 
+from . import ATTRIBUTION, CONF_CITY, DATA_METEO_FRANCE, SENSOR_TYPES
+
 _LOGGER = logging.getLogger(__name__)
 
 STATE_ATTR_FORECAST = '1h rain forecast'
diff --git a/homeassistant/components/meteo_france/weather.py b/homeassistant/components/meteo_france/weather.py
index 849c9d9da..b2b94c762 100644
--- a/homeassistant/components/meteo_france/weather.py
+++ b/homeassistant/components/meteo_france/weather.py
@@ -2,13 +2,13 @@
 from datetime import datetime, timedelta
 import logging
 
-from homeassistant.components.meteo_france import (
-    ATTRIBUTION, CONDITION_CLASSES, CONF_CITY, DATA_METEO_FRANCE)
 from homeassistant.components.weather import (
     ATTR_FORECAST_CONDITION, ATTR_FORECAST_TEMP, ATTR_FORECAST_TEMP_LOW,
     ATTR_FORECAST_TIME, WeatherEntity)
 from homeassistant.const import TEMP_CELSIUS
 
+from . import ATTRIBUTION, CONDITION_CLASSES, CONF_CITY, DATA_METEO_FRANCE
+
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/metoffice/weather.py b/homeassistant/components/metoffice/weather.py
index b4984bc3c..a67dcdcdb 100644
--- a/homeassistant/components/metoffice/weather.py
+++ b/homeassistant/components/metoffice/weather.py
@@ -3,13 +3,13 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.components.metoffice.sensor import (
-    CONDITION_CLASSES, ATTRIBUTION, MetOfficeCurrentData)
 from homeassistant.components.weather import PLATFORM_SCHEMA, WeatherEntity
 from homeassistant.const import (
     CONF_API_KEY, CONF_LATITUDE, CONF_LONGITUDE, CONF_NAME, TEMP_CELSIUS)
 from homeassistant.helpers import config_validation as cv
 
+from .sensor import ATTRIBUTION, CONDITION_CLASSES, MetOfficeCurrentData
+
 REQUIREMENTS = ['datapoint==0.4.3']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/modbus/binary_sensor.py b/homeassistant/components/modbus/binary_sensor.py
index 4e0ab7444..0c1054845 100644
--- a/homeassistant/components/modbus/binary_sensor.py
+++ b/homeassistant/components/modbus/binary_sensor.py
@@ -4,12 +4,12 @@ import logging
 import voluptuous as vol
 
 from homeassistant.components.binary_sensor import BinarySensorDevice
-from homeassistant.components.modbus import (
-    CONF_HUB, DEFAULT_HUB, DOMAIN as MODBUS_DOMAIN)
 from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import CONF_NAME, CONF_SLAVE
 from homeassistant.helpers import config_validation as cv
 
+from . import CONF_HUB, DEFAULT_HUB, DOMAIN as MODBUS_DOMAIN
+
 _LOGGER = logging.getLogger(__name__)
 
 CONF_COIL = 'coil'
diff --git a/homeassistant/components/modbus/climate.py b/homeassistant/components/modbus/climate.py
index 44daedac9..4d2b86903 100644
--- a/homeassistant/components/modbus/climate.py
+++ b/homeassistant/components/modbus/climate.py
@@ -6,11 +6,11 @@ import voluptuous as vol
 
 from homeassistant.components.climate import PLATFORM_SCHEMA, ClimateDevice
 from homeassistant.components.climate.const import SUPPORT_TARGET_TEMPERATURE
-from homeassistant.components.modbus import (
-    CONF_HUB, DEFAULT_HUB, DOMAIN as MODBUS_DOMAIN)
 from homeassistant.const import ATTR_TEMPERATURE, CONF_NAME, CONF_SLAVE
 import homeassistant.helpers.config_validation as cv
 
+from . import CONF_HUB, DEFAULT_HUB, DOMAIN as MODBUS_DOMAIN
+
 _LOGGER = logging.getLogger(__name__)
 
 CONF_TARGET_TEMP = 'target_temp_register'
diff --git a/homeassistant/components/modbus/sensor.py b/homeassistant/components/modbus/sensor.py
index 3f8c68b25..10e11a9a6 100644
--- a/homeassistant/components/modbus/sensor.py
+++ b/homeassistant/components/modbus/sensor.py
@@ -4,8 +4,6 @@ import struct
 
 import voluptuous as vol
 
-from homeassistant.components.modbus import (
-    CONF_HUB, DEFAULT_HUB, DOMAIN as MODBUS_DOMAIN)
 from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import (
     CONF_NAME, CONF_OFFSET, CONF_SLAVE, CONF_STRUCTURE,
@@ -13,6 +11,8 @@ from homeassistant.const import (
 from homeassistant.helpers import config_validation as cv
 from homeassistant.helpers.restore_state import RestoreEntity
 
+from . import CONF_HUB, DEFAULT_HUB, DOMAIN as MODBUS_DOMAIN
+
 _LOGGER = logging.getLogger(__name__)
 
 CONF_COUNT = 'count'
diff --git a/homeassistant/components/modbus/switch.py b/homeassistant/components/modbus/switch.py
index b7039a01d..69c5e3e48 100644
--- a/homeassistant/components/modbus/switch.py
+++ b/homeassistant/components/modbus/switch.py
@@ -3,8 +3,6 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.components.modbus import (
-    CONF_HUB, DEFAULT_HUB, DOMAIN as MODBUS_DOMAIN)
 from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import (
     CONF_COMMAND_OFF, CONF_COMMAND_ON, CONF_NAME, CONF_SLAVE, STATE_ON)
@@ -12,6 +10,8 @@ from homeassistant.helpers import config_validation as cv
 from homeassistant.helpers.entity import ToggleEntity
 from homeassistant.helpers.restore_state import RestoreEntity
 
+from . import CONF_HUB, DEFAULT_HUB, DOMAIN as MODBUS_DOMAIN
+
 _LOGGER = logging.getLogger(__name__)
 
 CONF_COIL = 'coil'
diff --git a/homeassistant/components/mqtt/__init__.py b/homeassistant/components/mqtt/__init__.py
index e4d468e21..2c605fb4b 100644
--- a/homeassistant/components/mqtt/__init__.py
+++ b/homeassistant/components/mqtt/__init__.py
@@ -5,8 +5,8 @@ For more details about this component, please refer to the documentation at
 https://home-assistant.io/components/mqtt/
 """
 import asyncio
-import inspect
 from functools import partial, wraps
+import inspect
 from itertools import groupby
 import json
 import logging
@@ -22,6 +22,7 @@ import requests.certs
 import voluptuous as vol
 
 from homeassistant import config_entries
+from homeassistant.components import websocket_api
 from homeassistant.const import (
     CONF_DEVICE, CONF_NAME, CONF_PASSWORD, CONF_PAYLOAD, CONF_PORT,
     CONF_PROTOCOL, CONF_USERNAME, CONF_VALUE_TEMPLATE,
@@ -37,7 +38,6 @@ from homeassistant.setup import async_prepare_setup_platform
 from homeassistant.util.async_ import (
     run_callback_threadsafe, run_coroutine_threadsafe)
 from homeassistant.util.logging import catch_log_exception
-from homeassistant.components import websocket_api
 
 # Loading the config flow file will register the flow
 from . import config_flow  # noqa pylint: disable=unused-import
@@ -1012,7 +1012,7 @@ class MqttDiscoveryUpdate(Entity):
         await super().async_added_to_hass()
 
         from homeassistant.helpers.dispatcher import async_dispatcher_connect
-        from homeassistant.components.mqtt.discovery import (
+        from .discovery import (
             MQTT_DISCOVERY_UPDATED, clear_discovery_hash)
 
         @callback
diff --git a/homeassistant/components/mqtt/alarm_control_panel.py b/homeassistant/components/mqtt/alarm_control_panel.py
index c350b32b4..9498b5975 100644
--- a/homeassistant/components/mqtt/alarm_control_panel.py
+++ b/homeassistant/components/mqtt/alarm_control_panel.py
@@ -11,12 +11,6 @@ import voluptuous as vol
 
 from homeassistant.components import mqtt
 import homeassistant.components.alarm_control_panel as alarm
-from homeassistant.components.mqtt import (
-    ATTR_DISCOVERY_HASH, CONF_COMMAND_TOPIC, CONF_QOS, CONF_RETAIN,
-    CONF_STATE_TOPIC, CONF_UNIQUE_ID, MqttAttributes, MqttAvailability,
-    MqttDiscoveryUpdate, MqttEntityDeviceInfo, subscription)
-from homeassistant.components.mqtt.discovery import (
-    MQTT_DISCOVERY_NEW, clear_discovery_hash)
 from homeassistant.const import (
     CONF_CODE, CONF_DEVICE, CONF_NAME, STATE_ALARM_ARMED_AWAY,
     STATE_ALARM_ARMED_HOME, STATE_ALARM_ARMED_NIGHT, STATE_ALARM_DISARMED,
@@ -26,6 +20,12 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.helpers.typing import ConfigType, HomeAssistantType
 
+from . import (
+    ATTR_DISCOVERY_HASH, CONF_COMMAND_TOPIC, CONF_QOS, CONF_RETAIN,
+    CONF_STATE_TOPIC, CONF_UNIQUE_ID, MqttAttributes, MqttAvailability,
+    MqttDiscoveryUpdate, MqttEntityDeviceInfo, subscription)
+from .discovery import MQTT_DISCOVERY_NEW, clear_discovery_hash
+
 _LOGGER = logging.getLogger(__name__)
 
 CONF_CODE_ARM_REQUIRED = 'code_arm_required'
diff --git a/homeassistant/components/mqtt/binary_sensor.py b/homeassistant/components/mqtt/binary_sensor.py
index f2a93d06f..7532f3053 100644
--- a/homeassistant/components/mqtt/binary_sensor.py
+++ b/homeassistant/components/mqtt/binary_sensor.py
@@ -11,12 +11,6 @@ import voluptuous as vol
 from homeassistant.components import binary_sensor, mqtt
 from homeassistant.components.binary_sensor import (
     DEVICE_CLASSES_SCHEMA, BinarySensorDevice)
-from homeassistant.components.mqtt import (
-    ATTR_DISCOVERY_HASH, CONF_QOS, CONF_STATE_TOPIC, CONF_UNIQUE_ID,
-    MqttAttributes, MqttAvailability, MqttDiscoveryUpdate,
-    MqttEntityDeviceInfo, subscription)
-from homeassistant.components.mqtt.discovery import (
-    MQTT_DISCOVERY_NEW, clear_discovery_hash)
 from homeassistant.const import (
     CONF_DEVICE, CONF_DEVICE_CLASS, CONF_FORCE_UPDATE, CONF_NAME,
     CONF_PAYLOAD_OFF, CONF_PAYLOAD_ON, CONF_VALUE_TEMPLATE)
@@ -26,6 +20,12 @@ from homeassistant.helpers.dispatcher import async_dispatcher_connect
 import homeassistant.helpers.event as evt
 from homeassistant.helpers.typing import ConfigType, HomeAssistantType
 
+from . import (
+    ATTR_DISCOVERY_HASH, CONF_QOS, CONF_STATE_TOPIC, CONF_UNIQUE_ID,
+    MqttAttributes, MqttAvailability, MqttDiscoveryUpdate,
+    MqttEntityDeviceInfo, subscription)
+from .discovery import MQTT_DISCOVERY_NEW, clear_discovery_hash
+
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'MQTT Binary sensor'
diff --git a/homeassistant/components/mqtt/camera.py b/homeassistant/components/mqtt/camera.py
index ca41f3c42..889e55334 100644
--- a/homeassistant/components/mqtt/camera.py
+++ b/homeassistant/components/mqtt/camera.py
@@ -12,17 +12,17 @@ import voluptuous as vol
 
 from homeassistant.components import camera, mqtt
 from homeassistant.components.camera import PLATFORM_SCHEMA, Camera
-from homeassistant.components.mqtt import (
-    ATTR_DISCOVERY_HASH, CONF_STATE_TOPIC, CONF_UNIQUE_ID, MqttDiscoveryUpdate,
-    subscription)
-from homeassistant.components.mqtt.discovery import (
-    MQTT_DISCOVERY_NEW, clear_discovery_hash)
 from homeassistant.const import CONF_NAME
 from homeassistant.core import callback
 from homeassistant.helpers import config_validation as cv
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.helpers.typing import ConfigType, HomeAssistantType
 
+from . import (
+    ATTR_DISCOVERY_HASH, CONF_STATE_TOPIC, CONF_UNIQUE_ID, MqttDiscoveryUpdate,
+    subscription)
+from .discovery import MQTT_DISCOVERY_NEW, clear_discovery_hash
+
 _LOGGER = logging.getLogger(__name__)
 
 CONF_TOPIC = 'topic'
diff --git a/homeassistant/components/mqtt/climate.py b/homeassistant/components/mqtt/climate.py
index ae8474379..a9c23d27e 100644
--- a/homeassistant/components/mqtt/climate.py
+++ b/homeassistant/components/mqtt/climate.py
@@ -10,20 +10,13 @@ import voluptuous as vol
 
 from homeassistant.components import climate, mqtt
 from homeassistant.components.climate import (
-    ClimateDevice, PLATFORM_SCHEMA as CLIMATE_PLATFORM_SCHEMA)
+    PLATFORM_SCHEMA as CLIMATE_PLATFORM_SCHEMA, ClimateDevice)
 from homeassistant.components.climate.const import (
-    ATTR_OPERATION_MODE, DEFAULT_MAX_TEMP, DEFAULT_MIN_TEMP,
-    STATE_AUTO, STATE_COOL,
-    STATE_DRY, STATE_FAN_ONLY, STATE_HEAT, SUPPORT_AUX_HEAT, SUPPORT_AWAY_MODE,
-    SUPPORT_FAN_MODE, SUPPORT_HOLD_MODE, SUPPORT_OPERATION_MODE,
-    SUPPORT_SWING_MODE, SUPPORT_TARGET_TEMPERATURE)
+    ATTR_OPERATION_MODE, DEFAULT_MAX_TEMP, DEFAULT_MIN_TEMP, STATE_AUTO,
+    STATE_COOL, STATE_DRY, STATE_FAN_ONLY, STATE_HEAT, SUPPORT_AUX_HEAT,
+    SUPPORT_AWAY_MODE, SUPPORT_FAN_MODE, SUPPORT_HOLD_MODE,
+    SUPPORT_OPERATION_MODE, SUPPORT_SWING_MODE, SUPPORT_TARGET_TEMPERATURE)
 from homeassistant.components.fan import SPEED_HIGH, SPEED_LOW, SPEED_MEDIUM
-from homeassistant.components.mqtt import (
-    ATTR_DISCOVERY_HASH, CONF_QOS, CONF_RETAIN, CONF_STATE_TOPIC,
-    CONF_UNIQUE_ID, MQTT_BASE_PLATFORM_SCHEMA, MqttAttributes,
-    MqttAvailability, MqttDiscoveryUpdate, MqttEntityDeviceInfo, subscription)
-from homeassistant.components.mqtt.discovery import (
-    MQTT_DISCOVERY_NEW, clear_discovery_hash)
 from homeassistant.const import (
     ATTR_TEMPERATURE, CONF_DEVICE, CONF_NAME, CONF_VALUE_TEMPLATE, STATE_OFF,
     STATE_ON)
@@ -32,6 +25,12 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.helpers.typing import ConfigType, HomeAssistantType
 
+from . import (
+    ATTR_DISCOVERY_HASH, CONF_QOS, CONF_RETAIN, CONF_STATE_TOPIC,
+    CONF_UNIQUE_ID, MQTT_BASE_PLATFORM_SCHEMA, MqttAttributes,
+    MqttAvailability, MqttDiscoveryUpdate, MqttEntityDeviceInfo, subscription)
+from .discovery import MQTT_DISCOVERY_NEW, clear_discovery_hash
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['mqtt']
diff --git a/homeassistant/components/mqtt/cover.py b/homeassistant/components/mqtt/cover.py
index 37222cbe8..8116421ac 100644
--- a/homeassistant/components/mqtt/cover.py
+++ b/homeassistant/components/mqtt/cover.py
@@ -13,12 +13,6 @@ from homeassistant.components.cover import (
     ATTR_POSITION, ATTR_TILT_POSITION, DEVICE_CLASSES_SCHEMA, SUPPORT_CLOSE,
     SUPPORT_CLOSE_TILT, SUPPORT_OPEN, SUPPORT_OPEN_TILT, SUPPORT_SET_POSITION,
     SUPPORT_SET_TILT_POSITION, SUPPORT_STOP, SUPPORT_STOP_TILT, CoverDevice)
-from homeassistant.components.mqtt import (
-    ATTR_DISCOVERY_HASH, CONF_COMMAND_TOPIC, CONF_QOS, CONF_RETAIN,
-    CONF_STATE_TOPIC, CONF_UNIQUE_ID, MqttAttributes, MqttAvailability,
-    MqttDiscoveryUpdate, MqttEntityDeviceInfo, subscription)
-from homeassistant.components.mqtt.discovery import (
-    MQTT_DISCOVERY_NEW, clear_discovery_hash)
 from homeassistant.const import (
     CONF_DEVICE, CONF_DEVICE_CLASS, CONF_NAME, CONF_OPTIMISTIC,
     CONF_VALUE_TEMPLATE, STATE_CLOSED, STATE_OPEN, STATE_UNKNOWN)
@@ -28,6 +22,12 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.helpers.typing import ConfigType, HomeAssistantType
 
+from . import (
+    ATTR_DISCOVERY_HASH, CONF_COMMAND_TOPIC, CONF_QOS, CONF_RETAIN,
+    CONF_STATE_TOPIC, CONF_UNIQUE_ID, MqttAttributes, MqttAvailability,
+    MqttDiscoveryUpdate, MqttEntityDeviceInfo, subscription)
+from .discovery import MQTT_DISCOVERY_NEW, clear_discovery_hash
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['mqtt']
diff --git a/homeassistant/components/mqtt/device_tracker.py b/homeassistant/components/mqtt/device_tracker.py
index bf55d955c..0f22ed150 100644
--- a/homeassistant/components/mqtt/device_tracker.py
+++ b/homeassistant/components/mqtt/device_tracker.py
@@ -9,12 +9,13 @@ import logging
 import voluptuous as vol
 
 from homeassistant.components import mqtt
-from homeassistant.core import callback
-from homeassistant.const import CONF_DEVICES
-from homeassistant.components.mqtt import CONF_QOS
 from homeassistant.components.device_tracker import PLATFORM_SCHEMA
+from homeassistant.const import CONF_DEVICES
+from homeassistant.core import callback
 import homeassistant.helpers.config_validation as cv
 
+from . import CONF_QOS
+
 DEPENDENCIES = ['mqtt']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/mqtt/discovery.py b/homeassistant/components/mqtt/discovery.py
index 745e54d0e..cb87a208b 100644
--- a/homeassistant/components/mqtt/discovery.py
+++ b/homeassistant/components/mqtt/discovery.py
@@ -10,12 +10,13 @@ import logging
 import re
 
 from homeassistant.components import mqtt
-from homeassistant.components.mqtt import ATTR_DISCOVERY_HASH, CONF_STATE_TOPIC
 from homeassistant.const import CONF_DEVICE, CONF_PLATFORM
 from homeassistant.helpers.discovery import async_load_platform
 from homeassistant.helpers.dispatcher import async_dispatcher_send
 from homeassistant.helpers.typing import HomeAssistantType
 
+from . import ATTR_DISCOVERY_HASH, CONF_STATE_TOPIC
+
 _LOGGER = logging.getLogger(__name__)
 
 TOPIC_MATCHER = re.compile(
diff --git a/homeassistant/components/mqtt/fan.py b/homeassistant/components/mqtt/fan.py
index 7c9f816ef..b8bff6088 100644
--- a/homeassistant/components/mqtt/fan.py
+++ b/homeassistant/components/mqtt/fan.py
@@ -12,12 +12,6 @@ from homeassistant.components import fan, mqtt
 from homeassistant.components.fan import (
     ATTR_SPEED, SPEED_HIGH, SPEED_LOW, SPEED_MEDIUM, SPEED_OFF,
     SUPPORT_OSCILLATE, SUPPORT_SET_SPEED, FanEntity)
-from homeassistant.components.mqtt import (
-    ATTR_DISCOVERY_HASH, CONF_COMMAND_TOPIC, CONF_QOS, CONF_RETAIN,
-    CONF_STATE_TOPIC, CONF_UNIQUE_ID, MqttAttributes, MqttAvailability,
-    MqttDiscoveryUpdate, MqttEntityDeviceInfo, subscription)
-from homeassistant.components.mqtt.discovery import (
-    MQTT_DISCOVERY_NEW, clear_discovery_hash)
 from homeassistant.const import (
     CONF_DEVICE, CONF_NAME, CONF_OPTIMISTIC, CONF_PAYLOAD_OFF, CONF_PAYLOAD_ON,
     CONF_STATE, STATE_OFF, STATE_ON)
@@ -26,6 +20,12 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.helpers.typing import ConfigType, HomeAssistantType
 
+from . import (
+    ATTR_DISCOVERY_HASH, CONF_COMMAND_TOPIC, CONF_QOS, CONF_RETAIN,
+    CONF_STATE_TOPIC, CONF_UNIQUE_ID, MqttAttributes, MqttAvailability,
+    MqttDiscoveryUpdate, MqttEntityDeviceInfo, subscription)
+from .discovery import MQTT_DISCOVERY_NEW, clear_discovery_hash
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['mqtt']
diff --git a/homeassistant/components/mqtt/lock.py b/homeassistant/components/mqtt/lock.py
index d9adc37d7..ee459d217 100644
--- a/homeassistant/components/mqtt/lock.py
+++ b/homeassistant/components/mqtt/lock.py
@@ -10,12 +10,6 @@ import voluptuous as vol
 
 from homeassistant.components import lock, mqtt
 from homeassistant.components.lock import LockDevice
-from homeassistant.components.mqtt import (
-    ATTR_DISCOVERY_HASH, CONF_COMMAND_TOPIC, CONF_QOS, CONF_RETAIN,
-    CONF_STATE_TOPIC, CONF_UNIQUE_ID, MqttAttributes, MqttAvailability,
-    MqttDiscoveryUpdate, MqttEntityDeviceInfo, subscription)
-from homeassistant.components.mqtt.discovery import (
-    MQTT_DISCOVERY_NEW, clear_discovery_hash)
 from homeassistant.const import (
     CONF_DEVICE, CONF_NAME, CONF_OPTIMISTIC, CONF_VALUE_TEMPLATE)
 from homeassistant.core import callback
@@ -23,6 +17,12 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.helpers.typing import ConfigType, HomeAssistantType
 
+from . import (
+    ATTR_DISCOVERY_HASH, CONF_COMMAND_TOPIC, CONF_QOS, CONF_RETAIN,
+    CONF_STATE_TOPIC, CONF_UNIQUE_ID, MqttAttributes, MqttAvailability,
+    MqttDiscoveryUpdate, MqttEntityDeviceInfo, subscription)
+from .discovery import MQTT_DISCOVERY_NEW, clear_discovery_hash
+
 _LOGGER = logging.getLogger(__name__)
 
 CONF_PAYLOAD_LOCK = 'payload_lock'
diff --git a/homeassistant/components/mqtt/sensor.py b/homeassistant/components/mqtt/sensor.py
index c6ef3344f..aa8d5e2a3 100644
--- a/homeassistant/components/mqtt/sensor.py
+++ b/homeassistant/components/mqtt/sensor.py
@@ -12,12 +12,6 @@ from typing import Optional
 import voluptuous as vol
 
 from homeassistant.components import mqtt, sensor
-from homeassistant.components.mqtt import (
-    ATTR_DISCOVERY_HASH, CONF_QOS, CONF_STATE_TOPIC, CONF_UNIQUE_ID,
-    MqttAttributes, MqttAvailability, MqttDiscoveryUpdate,
-    MqttEntityDeviceInfo, subscription)
-from homeassistant.components.mqtt.discovery import (
-    MQTT_DISCOVERY_NEW, clear_discovery_hash)
 from homeassistant.components.sensor import DEVICE_CLASSES_SCHEMA
 from homeassistant.const import (
     CONF_DEVICE, CONF_DEVICE_CLASS, CONF_FORCE_UPDATE, CONF_ICON, CONF_NAME,
@@ -30,6 +24,12 @@ from homeassistant.helpers.event import async_track_point_in_utc_time
 from homeassistant.helpers.typing import ConfigType, HomeAssistantType
 from homeassistant.util import dt as dt_util
 
+from . import (
+    ATTR_DISCOVERY_HASH, CONF_QOS, CONF_STATE_TOPIC, CONF_UNIQUE_ID,
+    MqttAttributes, MqttAvailability, MqttDiscoveryUpdate,
+    MqttEntityDeviceInfo, subscription)
+from .discovery import MQTT_DISCOVERY_NEW, clear_discovery_hash
+
 _LOGGER = logging.getLogger(__name__)
 
 CONF_EXPIRE_AFTER = 'expire_after'
diff --git a/homeassistant/components/mqtt/subscription.py b/homeassistant/components/mqtt/subscription.py
index e4563fc37..e159132d5 100644
--- a/homeassistant/components/mqtt/subscription.py
+++ b/homeassistant/components/mqtt/subscription.py
@@ -10,10 +10,11 @@ from typing import Any, Callable, Dict, Optional
 import attr
 
 from homeassistant.components import mqtt
-from homeassistant.components.mqtt import DEFAULT_QOS, MessageCallbackType
 from homeassistant.helpers.typing import HomeAssistantType
 from homeassistant.loader import bind_hass
 
+from . import DEFAULT_QOS, MessageCallbackType
+
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/mqtt/switch.py b/homeassistant/components/mqtt/switch.py
index de7da6b72..4847afd80 100644
--- a/homeassistant/components/mqtt/switch.py
+++ b/homeassistant/components/mqtt/switch.py
@@ -9,12 +9,6 @@ import logging
 import voluptuous as vol
 
 from homeassistant.components import mqtt, switch
-from homeassistant.components.mqtt import (
-    ATTR_DISCOVERY_HASH, CONF_COMMAND_TOPIC, CONF_QOS, CONF_RETAIN,
-    CONF_STATE_TOPIC, CONF_UNIQUE_ID, MqttAttributes, MqttAvailability,
-    MqttDiscoveryUpdate, MqttEntityDeviceInfo, subscription)
-from homeassistant.components.mqtt.discovery import (
-    MQTT_DISCOVERY_NEW, clear_discovery_hash)
 from homeassistant.components.switch import SwitchDevice
 from homeassistant.const import (
     CONF_DEVICE, CONF_ICON, CONF_NAME, CONF_OPTIMISTIC, CONF_PAYLOAD_OFF,
@@ -25,6 +19,12 @@ from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.helpers.restore_state import RestoreEntity
 from homeassistant.helpers.typing import ConfigType, HomeAssistantType
 
+from . import (
+    ATTR_DISCOVERY_HASH, CONF_COMMAND_TOPIC, CONF_QOS, CONF_RETAIN,
+    CONF_STATE_TOPIC, CONF_UNIQUE_ID, MqttAttributes, MqttAvailability,
+    MqttDiscoveryUpdate, MqttEntityDeviceInfo, subscription)
+from .discovery import MQTT_DISCOVERY_NEW, clear_discovery_hash
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['mqtt']
diff --git a/homeassistant/components/mqtt/vacuum.py b/homeassistant/components/mqtt/vacuum.py
index eb7e78b62..efa00821c 100644
--- a/homeassistant/components/mqtt/vacuum.py
+++ b/homeassistant/components/mqtt/vacuum.py
@@ -9,11 +9,6 @@ import logging
 import voluptuous as vol
 
 from homeassistant.components import mqtt
-from homeassistant.components.mqtt import (
-    ATTR_DISCOVERY_HASH, CONF_UNIQUE_ID, MqttAttributes, MqttAvailability,
-    MqttDiscoveryUpdate, MqttEntityDeviceInfo, subscription)
-from homeassistant.components.mqtt.discovery import (
-    MQTT_DISCOVERY_NEW, clear_discovery_hash)
 from homeassistant.components.vacuum import (
     DOMAIN, SUPPORT_BATTERY, SUPPORT_CLEAN_SPOT, SUPPORT_FAN_SPEED,
     SUPPORT_LOCATE, SUPPORT_PAUSE, SUPPORT_RETURN_HOME, SUPPORT_SEND_COMMAND,
@@ -25,6 +20,11 @@ import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.helpers.icon import icon_for_battery_level
 
+from . import (
+    ATTR_DISCOVERY_HASH, CONF_UNIQUE_ID, MqttAttributes, MqttAvailability,
+    MqttDiscoveryUpdate, MqttEntityDeviceInfo, subscription)
+from .discovery import MQTT_DISCOVERY_NEW, clear_discovery_hash
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['mqtt']
diff --git a/homeassistant/components/mychevy/binary_sensor.py b/homeassistant/components/mychevy/binary_sensor.py
index 67f12a143..a2435d596 100644
--- a/homeassistant/components/mychevy/binary_sensor.py
+++ b/homeassistant/components/mychevy/binary_sensor.py
@@ -1,14 +1,13 @@
 """Support for MyChevy binary sensors."""
 import logging
 
-from homeassistant.components.mychevy import (
-    EVBinarySensorConfig, DOMAIN as MYCHEVY_DOMAIN, UPDATE_TOPIC
-)
 from homeassistant.components.binary_sensor import (
     ENTITY_ID_FORMAT, BinarySensorDevice)
 from homeassistant.core import callback
 from homeassistant.util import slugify
 
+from . import DOMAIN as MYCHEVY_DOMAIN, UPDATE_TOPIC, EVBinarySensorConfig
+
 _LOGGER = logging.getLogger(__name__)
 
 SENSORS = [
diff --git a/homeassistant/components/mychevy/sensor.py b/homeassistant/components/mychevy/sensor.py
index c7d140e0c..42b27df62 100644
--- a/homeassistant/components/mychevy/sensor.py
+++ b/homeassistant/components/mychevy/sensor.py
@@ -1,16 +1,16 @@
 """Support for MyChevy sensors."""
 import logging
 
-from homeassistant.components.mychevy import (
-    EVSensorConfig, DOMAIN as MYCHEVY_DOMAIN, MYCHEVY_ERROR, MYCHEVY_SUCCESS,
-    UPDATE_TOPIC, ERROR_TOPIC
-)
 from homeassistant.components.sensor import ENTITY_ID_FORMAT
 from homeassistant.core import callback
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.icon import icon_for_battery_level
 from homeassistant.util import slugify
 
+from . import (
+    DOMAIN as MYCHEVY_DOMAIN, ERROR_TOPIC, MYCHEVY_ERROR, MYCHEVY_SUCCESS,
+    UPDATE_TOPIC, EVSensorConfig)
+
 _LOGGER = logging.getLogger(__name__)
 
 BATTERY_SENSOR = "batteryLevel"
diff --git a/homeassistant/components/neato/camera.py b/homeassistant/components/neato/camera.py
index 530aa8fc6..f8106c3e6 100644
--- a/homeassistant/components/neato/camera.py
+++ b/homeassistant/components/neato/camera.py
@@ -1,10 +1,10 @@
 """Support for loading picture from Neato."""
+from datetime import timedelta
 import logging
 
-from datetime import timedelta
 from homeassistant.components.camera import Camera
-from homeassistant.components.neato import (
-    NEATO_MAP_DATA, NEATO_ROBOTS, NEATO_LOGIN)
+
+from . import NEATO_LOGIN, NEATO_MAP_DATA, NEATO_ROBOTS
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/neato/switch.py b/homeassistant/components/neato/switch.py
index fcc72762b..ea60f9492 100644
--- a/homeassistant/components/neato/switch.py
+++ b/homeassistant/components/neato/switch.py
@@ -1,10 +1,13 @@
 """Support for Neato Connected Vacuums switches."""
-import logging
 from datetime import timedelta
+import logging
+
 import requests
+
 from homeassistant.const import STATE_OFF, STATE_ON
 from homeassistant.helpers.entity import ToggleEntity
-from homeassistant.components.neato import NEATO_ROBOTS, NEATO_LOGIN
+
+from . import NEATO_LOGIN, NEATO_ROBOTS
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/neato/vacuum.py b/homeassistant/components/neato/vacuum.py
index 2f2f39049..3575301ea 100644
--- a/homeassistant/components/neato/vacuum.py
+++ b/homeassistant/components/neato/vacuum.py
@@ -1,22 +1,23 @@
 """Support for Neato Connected Vacuums."""
-import logging
 from datetime import timedelta
+import logging
+
 import requests
 import voluptuous as vol
 
-from homeassistant.const import (ATTR_ENTITY_ID)
 from homeassistant.components.vacuum import (
-    StateVacuumDevice, SUPPORT_BATTERY, SUPPORT_PAUSE, SUPPORT_RETURN_HOME,
-    SUPPORT_STATE, SUPPORT_STOP, SUPPORT_START, STATE_IDLE,
-    STATE_PAUSED, STATE_CLEANING, STATE_DOCKED, STATE_RETURNING, STATE_ERROR,
-    SUPPORT_MAP, ATTR_STATUS, ATTR_BATTERY_LEVEL, ATTR_BATTERY_ICON,
-    SUPPORT_LOCATE, SUPPORT_CLEAN_SPOT, DOMAIN)
-from homeassistant.components.neato import (
-    NEATO_ROBOTS, NEATO_LOGIN, NEATO_MAP_DATA, ACTION, ERRORS, MODE, ALERTS,
-    NEATO_PERSISTENT_MAPS)
-
-from homeassistant.helpers.service import extract_entity_ids
+    ATTR_BATTERY_ICON, ATTR_BATTERY_LEVEL, ATTR_STATUS, DOMAIN, STATE_CLEANING,
+    STATE_DOCKED, STATE_ERROR, STATE_IDLE, STATE_PAUSED, STATE_RETURNING,
+    SUPPORT_BATTERY, SUPPORT_CLEAN_SPOT, SUPPORT_LOCATE, SUPPORT_MAP,
+    SUPPORT_PAUSE, SUPPORT_RETURN_HOME, SUPPORT_START, SUPPORT_STATE,
+    SUPPORT_STOP, StateVacuumDevice)
+from homeassistant.const import ATTR_ENTITY_ID
 import homeassistant.helpers.config_validation as cv
+from homeassistant.helpers.service import extract_entity_ids
+
+from . import (
+    ACTION, ALERTS, ERRORS, MODE, NEATO_LOGIN, NEATO_MAP_DATA,
+    NEATO_PERSISTENT_MAPS, NEATO_ROBOTS)
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/ness_alarm/alarm_control_panel.py b/homeassistant/components/ness_alarm/alarm_control_panel.py
index ee3a0c213..f77b53498 100644
--- a/homeassistant/components/ness_alarm/alarm_control_panel.py
+++ b/homeassistant/components/ness_alarm/alarm_control_panel.py
@@ -8,14 +8,14 @@ https://home-assistant.io/components/alarm_control_panel.ness_alarm/
 import logging
 
 import homeassistant.components.alarm_control_panel as alarm
-from homeassistant.components.ness_alarm import (
-    DATA_NESS, SIGNAL_ARMING_STATE_CHANGED)
 from homeassistant.const import (
-    STATE_ALARM_ARMED_AWAY, STATE_ALARM_ARMING,
-    STATE_ALARM_TRIGGERED, STATE_ALARM_PENDING, STATE_ALARM_DISARMED)
+    STATE_ALARM_ARMED_AWAY, STATE_ALARM_ARMING, STATE_ALARM_DISARMED,
+    STATE_ALARM_PENDING, STATE_ALARM_TRIGGERED)
 from homeassistant.core import callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
+from . import DATA_NESS, SIGNAL_ARMING_STATE_CHANGED
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['ness_alarm']
diff --git a/homeassistant/components/ness_alarm/binary_sensor.py b/homeassistant/components/ness_alarm/binary_sensor.py
index 9f1479efd..7b684f74a 100644
--- a/homeassistant/components/ness_alarm/binary_sensor.py
+++ b/homeassistant/components/ness_alarm/binary_sensor.py
@@ -7,12 +7,13 @@ https://home-assistant.io/components/binary_sensor.ness_alarm/
 import logging
 
 from homeassistant.components.binary_sensor import BinarySensorDevice
-from homeassistant.components.ness_alarm import (
-    CONF_ZONES, CONF_ZONE_TYPE, CONF_ZONE_NAME, CONF_ZONE_ID,
-    SIGNAL_ZONE_CHANGED, ZoneChangedData)
 from homeassistant.core import callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
+from . import (
+    CONF_ZONE_ID, CONF_ZONE_NAME, CONF_ZONE_TYPE, CONF_ZONES,
+    SIGNAL_ZONE_CHANGED, ZoneChangedData)
+
 DEPENDENCIES = ['ness_alarm']
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/nest/binary_sensor.py b/homeassistant/components/nest/binary_sensor.py
index 1077fdb07..aa56bfbf2 100644
--- a/homeassistant/components/nest/binary_sensor.py
+++ b/homeassistant/components/nest/binary_sensor.py
@@ -3,10 +3,11 @@ from itertools import chain
 import logging
 
 from homeassistant.components.binary_sensor import BinarySensorDevice
-from homeassistant.components.nest import (
-    DATA_NEST, DATA_NEST_CONFIG, CONF_BINARY_SENSORS, NestSensorDevice)
 from homeassistant.const import CONF_MONITORED_CONDITIONS
 
+from . import (
+    CONF_BINARY_SENSORS, DATA_NEST, DATA_NEST_CONFIG, NestSensorDevice)
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['nest']
diff --git a/homeassistant/components/nest/climate.py b/homeassistant/components/nest/climate.py
index 88b6cbbbe..cd9a7cb71 100644
--- a/homeassistant/components/nest/climate.py
+++ b/homeassistant/components/nest/climate.py
@@ -3,20 +3,19 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.components.nest import (
-    DATA_NEST, SIGNAL_NEST_UPDATE, DOMAIN as NEST_DOMAIN)
-from homeassistant.components.climate import ClimateDevice, PLATFORM_SCHEMA
+from homeassistant.components.climate import PLATFORM_SCHEMA, ClimateDevice
 from homeassistant.components.climate.const import (
-    STATE_AUTO, STATE_COOL, STATE_HEAT, STATE_ECO,
-    ATTR_TARGET_TEMP_HIGH, ATTR_TARGET_TEMP_LOW,
-    SUPPORT_TARGET_TEMPERATURE,
-    SUPPORT_TARGET_TEMPERATURE_HIGH, SUPPORT_TARGET_TEMPERATURE_LOW,
-    SUPPORT_OPERATION_MODE, SUPPORT_AWAY_MODE, SUPPORT_FAN_MODE)
+    ATTR_TARGET_TEMP_HIGH, ATTR_TARGET_TEMP_LOW, STATE_AUTO, STATE_COOL,
+    STATE_ECO, STATE_HEAT, SUPPORT_AWAY_MODE, SUPPORT_FAN_MODE,
+    SUPPORT_OPERATION_MODE, SUPPORT_TARGET_TEMPERATURE,
+    SUPPORT_TARGET_TEMPERATURE_HIGH, SUPPORT_TARGET_TEMPERATURE_LOW)
 from homeassistant.const import (
-    ATTR_TEMPERATURE, TEMP_CELSIUS, TEMP_FAHRENHEIT,
-    CONF_SCAN_INTERVAL, STATE_ON, STATE_OFF)
+    ATTR_TEMPERATURE, CONF_SCAN_INTERVAL, STATE_OFF, STATE_ON, TEMP_CELSIUS,
+    TEMP_FAHRENHEIT)
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
+from . import DATA_NEST, DOMAIN as NEST_DOMAIN, SIGNAL_NEST_UPDATE
+
 DEPENDENCIES = ['nest']
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/nest/sensor.py b/homeassistant/components/nest/sensor.py
index bde3f681c..ecae83e30 100644
--- a/homeassistant/components/nest/sensor.py
+++ b/homeassistant/components/nest/sensor.py
@@ -1,13 +1,12 @@
 """Support for Nest Thermostat sensors."""
 import logging
 
-from homeassistant.components.climate.const import (
-    STATE_COOL, STATE_HEAT)
-from homeassistant.components.nest import (
-    DATA_NEST, DATA_NEST_CONFIG, CONF_SENSORS, NestSensorDevice)
+from homeassistant.components.climate.const import STATE_COOL, STATE_HEAT
 from homeassistant.const import (
-    TEMP_CELSIUS, TEMP_FAHRENHEIT, CONF_MONITORED_CONDITIONS,
-    DEVICE_CLASS_TEMPERATURE, DEVICE_CLASS_HUMIDITY, STATE_OFF)
+    CONF_MONITORED_CONDITIONS, DEVICE_CLASS_HUMIDITY, DEVICE_CLASS_TEMPERATURE,
+    STATE_OFF, TEMP_CELSIUS, TEMP_FAHRENHEIT)
+
+from . import CONF_SENSORS, DATA_NEST, DATA_NEST_CONFIG, NestSensorDevice
 
 DEPENDENCIES = ['nest']
 
diff --git a/homeassistant/components/netatmo/binary_sensor.py b/homeassistant/components/netatmo/binary_sensor.py
index 7986010ef..a11ce6bdd 100644
--- a/homeassistant/components/netatmo/binary_sensor.py
+++ b/homeassistant/components/netatmo/binary_sensor.py
@@ -4,11 +4,12 @@ import logging
 import voluptuous as vol
 
 from homeassistant.components.binary_sensor import (
-    BinarySensorDevice, PLATFORM_SCHEMA)
-from homeassistant.components.netatmo import CameraData
+    PLATFORM_SCHEMA, BinarySensorDevice)
 from homeassistant.const import CONF_TIMEOUT
 from homeassistant.helpers import config_validation as cv
 
+from . import CameraData
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['netatmo']
diff --git a/homeassistant/components/netatmo/camera.py b/homeassistant/components/netatmo/camera.py
index 57d30d6cb..513852cde 100644
--- a/homeassistant/components/netatmo/camera.py
+++ b/homeassistant/components/netatmo/camera.py
@@ -4,11 +4,12 @@ import logging
 import requests
 import voluptuous as vol
 
+from homeassistant.components.camera import PLATFORM_SCHEMA, Camera
 from homeassistant.const import CONF_VERIFY_SSL
-from homeassistant.components.netatmo import CameraData
-from homeassistant.components.camera import (Camera, PLATFORM_SCHEMA)
 from homeassistant.helpers import config_validation as cv
 
+from . import CameraData
+
 DEPENDENCIES = ['netatmo']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/nissan_leaf/binary_sensor.py b/homeassistant/components/nissan_leaf/binary_sensor.py
index 2397405ec..5c71cf1fc 100644
--- a/homeassistant/components/nissan_leaf/binary_sensor.py
+++ b/homeassistant/components/nissan_leaf/binary_sensor.py
@@ -1,10 +1,10 @@
 """Plugged In Status Support for the Nissan Leaf."""
 import logging
 
-from homeassistant.components.nissan_leaf import (
-    DATA_CHARGING, DATA_LEAF, DATA_PLUGGED_IN, LeafEntity)
 from homeassistant.components.binary_sensor import BinarySensorDevice
 
+from . import DATA_CHARGING, DATA_LEAF, DATA_PLUGGED_IN, LeafEntity
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['nissan_leaf']
diff --git a/homeassistant/components/nissan_leaf/device_tracker.py b/homeassistant/components/nissan_leaf/device_tracker.py
index 1ca7fceb9..95f6fcdca 100644
--- a/homeassistant/components/nissan_leaf/device_tracker.py
+++ b/homeassistant/components/nissan_leaf/device_tracker.py
@@ -1,11 +1,11 @@
 """Support for tracking a Nissan Leaf."""
 import logging
 
-from homeassistant.components.nissan_leaf import (
-    DATA_LEAF, DATA_LOCATION, SIGNAL_UPDATE_LEAF)
 from homeassistant.helpers.dispatcher import dispatcher_connect
 from homeassistant.util import slugify
 
+from . import DATA_LEAF, DATA_LOCATION, SIGNAL_UPDATE_LEAF
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['nissan_leaf']
diff --git a/homeassistant/components/nissan_leaf/sensor.py b/homeassistant/components/nissan_leaf/sensor.py
index f6206f1f4..682f482b4 100644
--- a/homeassistant/components/nissan_leaf/sensor.py
+++ b/homeassistant/components/nissan_leaf/sensor.py
@@ -1,14 +1,15 @@
 """Battery Charge and Range Support for the Nissan Leaf."""
 import logging
 
-from homeassistant.components.nissan_leaf import (
-    DATA_BATTERY, DATA_CHARGING, DATA_LEAF, DATA_RANGE_AC, DATA_RANGE_AC_OFF,
-    LeafEntity)
 from homeassistant.const import DEVICE_CLASS_BATTERY
 from homeassistant.helpers.icon import icon_for_battery_level
 from homeassistant.util.distance import LENGTH_KILOMETERS, LENGTH_MILES
 from homeassistant.util.unit_system import IMPERIAL_SYSTEM, METRIC_SYSTEM
 
+from . import (
+    DATA_BATTERY, DATA_CHARGING, DATA_LEAF, DATA_RANGE_AC, DATA_RANGE_AC_OFF,
+    LeafEntity)
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['nissan_leaf']
diff --git a/homeassistant/components/nissan_leaf/switch.py b/homeassistant/components/nissan_leaf/switch.py
index 60b9a6630..e6d72103a 100644
--- a/homeassistant/components/nissan_leaf/switch.py
+++ b/homeassistant/components/nissan_leaf/switch.py
@@ -1,10 +1,10 @@
 """Charge and Climate Control Support for the Nissan Leaf."""
 import logging
 
-from homeassistant.components.nissan_leaf import (
-    DATA_CLIMATE, DATA_LEAF, LeafEntity)
 from homeassistant.helpers.entity import ToggleEntity
 
+from . import DATA_CLIMATE, DATA_LEAF, LeafEntity
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['nissan_leaf']
diff --git a/homeassistant/components/notify/apns.py b/homeassistant/components/notify/apns.py
index 8fabfc3ae..3f5403f0c 100644
--- a/homeassistant/components/notify/apns.py
+++ b/homeassistant/components/notify/apns.py
@@ -9,13 +9,14 @@ import os
 
 import voluptuous as vol
 
-from homeassistant.helpers.event import track_state_change
 from homeassistant.config import load_yaml_config_file
-from homeassistant.components.notify import (
-    ATTR_TARGET, ATTR_DATA, BaseNotificationService, DOMAIN, PLATFORM_SCHEMA)
-from homeassistant.const import CONF_NAME, CONF_PLATFORM, ATTR_NAME
-import homeassistant.helpers.config_validation as cv
+from homeassistant.const import ATTR_NAME, CONF_NAME, CONF_PLATFORM
 from homeassistant.helpers import template as template_helper
+import homeassistant.helpers.config_validation as cv
+from homeassistant.helpers.event import track_state_change
+
+from . import (
+    ATTR_DATA, ATTR_TARGET, DOMAIN, PLATFORM_SCHEMA, BaseNotificationService)
 
 REQUIREMENTS = ['apns2==0.3.0']
 
diff --git a/homeassistant/components/notify/aws_lambda.py b/homeassistant/components/notify/aws_lambda.py
index 17df1ba8f..e605f82c3 100644
--- a/homeassistant/components/notify/aws_lambda.py
+++ b/homeassistant/components/notify/aws_lambda.py
@@ -4,19 +4,18 @@ AWS Lambda platform for notify component.
 For more details about this platform, please refer to the documentation at
 https://home-assistant.io/components/notify.aws_lambda/
 """
-import logging
-import json
 import base64
+import json
+import logging
 
 import voluptuous as vol
 
-from homeassistant.const import (
-    CONF_PLATFORM, CONF_NAME)
-from homeassistant.components.notify import (
-    ATTR_TARGET, PLATFORM_SCHEMA, BaseNotificationService)
+from homeassistant.const import CONF_NAME, CONF_PLATFORM
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.json import JSONEncoder
 
+from . import ATTR_TARGET, PLATFORM_SCHEMA, BaseNotificationService
+
 REQUIREMENTS = ['boto3==1.9.16']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/notify/aws_sns.py b/homeassistant/components/notify/aws_sns.py
index 065898bcb..9363576fc 100644
--- a/homeassistant/components/notify/aws_sns.py
+++ b/homeassistant/components/notify/aws_sns.py
@@ -4,18 +4,18 @@ AWS SNS platform for notify component.
 For more details about this platform, please refer to the documentation at
 https://home-assistant.io/components/notify.aws_sns/
 """
-import logging
 import json
+import logging
 
 import voluptuous as vol
 
-from homeassistant.const import (
-    CONF_PLATFORM, CONF_NAME)
-from homeassistant.components.notify import (
-    ATTR_TITLE, ATTR_TITLE_DEFAULT, ATTR_TARGET, PLATFORM_SCHEMA,
-    BaseNotificationService)
+from homeassistant.const import CONF_NAME, CONF_PLATFORM
 import homeassistant.helpers.config_validation as cv
 
+from . import (
+    ATTR_TARGET, ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA,
+    BaseNotificationService)
+
 _LOGGER = logging.getLogger(__name__)
 REQUIREMENTS = ["boto3==1.9.16"]
 
diff --git a/homeassistant/components/notify/aws_sqs.py b/homeassistant/components/notify/aws_sqs.py
index 78e71bde9..ed22147cf 100644
--- a/homeassistant/components/notify/aws_sqs.py
+++ b/homeassistant/components/notify/aws_sqs.py
@@ -4,17 +4,16 @@ AWS SQS platform for notify component.
 For more details about this platform, please refer to the documentation at
 https://home-assistant.io/components/notify.aws_sqs/
 """
-import logging
 import json
+import logging
 
 import voluptuous as vol
 
-from homeassistant.const import (
-    CONF_PLATFORM, CONF_NAME)
-from homeassistant.components.notify import (
-    ATTR_TARGET, PLATFORM_SCHEMA, BaseNotificationService)
+from homeassistant.const import CONF_NAME, CONF_PLATFORM
 import homeassistant.helpers.config_validation as cv
 
+from . import ATTR_TARGET, PLATFORM_SCHEMA, BaseNotificationService
+
 _LOGGER = logging.getLogger(__name__)
 REQUIREMENTS = ["boto3==1.9.16"]
 
diff --git a/homeassistant/components/notify/ciscospark.py b/homeassistant/components/notify/ciscospark.py
index e83e0e902..a33e9432e 100644
--- a/homeassistant/components/notify/ciscospark.py
+++ b/homeassistant/components/notify/ciscospark.py
@@ -8,11 +8,11 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.components.notify import (
-    PLATFORM_SCHEMA, BaseNotificationService, ATTR_TITLE)
-from homeassistant.const import (CONF_TOKEN)
+from homeassistant.const import CONF_TOKEN
 import homeassistant.helpers.config_validation as cv
 
+from . import ATTR_TITLE, PLATFORM_SCHEMA, BaseNotificationService
+
 REQUIREMENTS = ['ciscosparkapi==0.4.2']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/notify/clickatell.py b/homeassistant/components/notify/clickatell.py
index 6af2b4551..559232e25 100644
--- a/homeassistant/components/notify/clickatell.py
+++ b/homeassistant/components/notify/clickatell.py
@@ -9,10 +9,10 @@ import logging
 import requests
 import voluptuous as vol
 
+from homeassistant.const import CONF_API_KEY, CONF_RECIPIENT
 import homeassistant.helpers.config_validation as cv
-from homeassistant.const import (CONF_API_KEY, CONF_RECIPIENT)
-from homeassistant.components.notify import (
-    PLATFORM_SCHEMA, BaseNotificationService)
+
+from . import PLATFORM_SCHEMA, BaseNotificationService
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/notify/clicksend.py b/homeassistant/components/notify/clicksend.py
index faf30ac7c..6f10ac707 100644
--- a/homeassistant/components/notify/clicksend.py
+++ b/homeassistant/components/notify/clicksend.py
@@ -7,16 +7,16 @@ https://home-assistant.io/components/notify.clicksend/
 import json
 import logging
 
+from aiohttp.hdrs import CONTENT_TYPE
 import requests
 import voluptuous as vol
-from aiohttp.hdrs import CONTENT_TYPE
 
-import homeassistant.helpers.config_validation as cv
-from homeassistant.components.notify import (
-    PLATFORM_SCHEMA, BaseNotificationService)
 from homeassistant.const import (
     CONF_API_KEY, CONF_RECIPIENT, CONF_SENDER, CONF_USERNAME,
     CONTENT_TYPE_JSON)
+import homeassistant.helpers.config_validation as cv
+
+from . import PLATFORM_SCHEMA, BaseNotificationService
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/notify/clicksend_tts.py b/homeassistant/components/notify/clicksend_tts.py
index c60e02ece..1481fea17 100644
--- a/homeassistant/components/notify/clicksend_tts.py
+++ b/homeassistant/components/notify/clicksend_tts.py
@@ -9,15 +9,15 @@ https://home-assistant.io/components/notify.clicksend_tts/
 import json
 import logging
 
+from aiohttp.hdrs import CONTENT_TYPE
 import requests
 import voluptuous as vol
-from aiohttp.hdrs import CONTENT_TYPE
 
-import homeassistant.helpers.config_validation as cv
-from homeassistant.components.notify import (
-    PLATFORM_SCHEMA, BaseNotificationService)
 from homeassistant.const import (
-    CONF_API_KEY, CONF_USERNAME, CONF_RECIPIENT, CONTENT_TYPE_JSON)
+    CONF_API_KEY, CONF_RECIPIENT, CONF_USERNAME, CONTENT_TYPE_JSON)
+import homeassistant.helpers.config_validation as cv
+
+from . import PLATFORM_SCHEMA, BaseNotificationService
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/notify/command_line.py b/homeassistant/components/notify/command_line.py
index 4a7483d6e..6a81dace2 100644
--- a/homeassistant/components/notify/command_line.py
+++ b/homeassistant/components/notify/command_line.py
@@ -9,11 +9,11 @@ import subprocess
 
 import voluptuous as vol
 
-from homeassistant.const import (CONF_COMMAND, CONF_NAME)
-from homeassistant.components.notify import (
-    BaseNotificationService, PLATFORM_SCHEMA)
+from homeassistant.const import CONF_COMMAND, CONF_NAME
 import homeassistant.helpers.config_validation as cv
 
+from . import PLATFORM_SCHEMA, BaseNotificationService
+
 _LOGGER = logging.getLogger(__name__)
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/notify/demo.py b/homeassistant/components/notify/demo.py
index 5b8e1f168..9cb616090 100644
--- a/homeassistant/components/notify/demo.py
+++ b/homeassistant/components/notify/demo.py
@@ -4,7 +4,7 @@ Demo notification service.
 For more details about this platform, please refer to the documentation
 https://home-assistant.io/components/demo/
 """
-from homeassistant.components.notify import BaseNotificationService
+from . import BaseNotificationService
 
 EVENT_NOTIFY = "notify"
 
diff --git a/homeassistant/components/notify/discord.py b/homeassistant/components/notify/discord.py
index e9f0d5cec..f98c136b3 100644
--- a/homeassistant/components/notify/discord.py
+++ b/homeassistant/components/notify/discord.py
@@ -8,10 +8,10 @@ import logging
 
 import voluptuous as vol
 
-import homeassistant.helpers.config_validation as cv
-from homeassistant.components.notify import (
-    PLATFORM_SCHEMA, BaseNotificationService, ATTR_TARGET, ATTR_DATA)
 from homeassistant.const import CONF_TOKEN
+import homeassistant.helpers.config_validation as cv
+
+from . import ATTR_DATA, ATTR_TARGET, PLATFORM_SCHEMA, BaseNotificationService
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/notify/facebook.py b/homeassistant/components/notify/facebook.py
index b73f845ea..b642a7b93 100644
--- a/homeassistant/components/notify/facebook.py
+++ b/homeassistant/components/notify/facebook.py
@@ -11,11 +11,11 @@ from aiohttp.hdrs import CONTENT_TYPE
 import requests
 import voluptuous as vol
 
-from homeassistant.components.notify import (
-    ATTR_DATA, ATTR_TARGET, PLATFORM_SCHEMA, BaseNotificationService)
 from homeassistant.const import CONTENT_TYPE_JSON
 import homeassistant.helpers.config_validation as cv
 
+from . import ATTR_DATA, ATTR_TARGET, PLATFORM_SCHEMA, BaseNotificationService
+
 _LOGGER = logging.getLogger(__name__)
 
 CONF_PAGE_ACCESS_TOKEN = 'page_access_token'
diff --git a/homeassistant/components/notify/file.py b/homeassistant/components/notify/file.py
index 749a6d4b3..98f6da66e 100644
--- a/homeassistant/components/notify/file.py
+++ b/homeassistant/components/notify/file.py
@@ -9,11 +9,12 @@ import os
 
 import voluptuous as vol
 
-import homeassistant.util.dt as dt_util
-from homeassistant.components.notify import (
-    ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA, BaseNotificationService)
 from homeassistant.const import CONF_FILENAME
 import homeassistant.helpers.config_validation as cv
+import homeassistant.util.dt as dt_util
+
+from . import (
+    ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA, BaseNotificationService)
 
 CONF_TIMESTAMP = 'timestamp'
 
diff --git a/homeassistant/components/notify/flock.py b/homeassistant/components/notify/flock.py
index d26f62980..16f38bbbb 100644
--- a/homeassistant/components/notify/flock.py
+++ b/homeassistant/components/notify/flock.py
@@ -10,12 +10,12 @@ import logging
 import async_timeout
 import voluptuous as vol
 
-from homeassistant.components.notify import (
-    PLATFORM_SCHEMA, BaseNotificationService)
 from homeassistant.const import CONF_ACCESS_TOKEN
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 import homeassistant.helpers.config_validation as cv
 
+from . import PLATFORM_SCHEMA, BaseNotificationService
+
 _LOGGER = logging.getLogger(__name__)
 _RESOURCE = 'https://api.flock.com/hooks/sendMessage/'
 
diff --git a/homeassistant/components/notify/free_mobile.py b/homeassistant/components/notify/free_mobile.py
index a27d04951..fb7829105 100644
--- a/homeassistant/components/notify/free_mobile.py
+++ b/homeassistant/components/notify/free_mobile.py
@@ -8,11 +8,11 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.components.notify import (
-    PLATFORM_SCHEMA, BaseNotificationService)
 from homeassistant.const import CONF_ACCESS_TOKEN, CONF_USERNAME
 import homeassistant.helpers.config_validation as cv
 
+from . import PLATFORM_SCHEMA, BaseNotificationService
+
 REQUIREMENTS = ['freesms==0.1.2']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/notify/gntp.py b/homeassistant/components/notify/gntp.py
index 1a2b65f95..4560eb21f 100644
--- a/homeassistant/components/notify/gntp.py
+++ b/homeassistant/components/notify/gntp.py
@@ -9,11 +9,12 @@ import os
 
 import voluptuous as vol
 
-from homeassistant.components.notify import (
-    ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA, BaseNotificationService)
 from homeassistant.const import CONF_PASSWORD, CONF_PORT
 import homeassistant.helpers.config_validation as cv
 
+from . import (
+    ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA, BaseNotificationService)
+
 REQUIREMENTS = ['gntp==1.0.3']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/notify/group.py b/homeassistant/components/notify/group.py
index 5d25c2d81..85d4d53e3 100644
--- a/homeassistant/components/notify/group.py
+++ b/homeassistant/components/notify/group.py
@@ -8,13 +8,15 @@ import asyncio
 from collections.abc import Mapping
 from copy import deepcopy
 import logging
+
 import voluptuous as vol
 
 from homeassistant.const import ATTR_SERVICE
-from homeassistant.components.notify import (
-    DOMAIN, ATTR_MESSAGE, ATTR_DATA, PLATFORM_SCHEMA, BaseNotificationService)
 import homeassistant.helpers.config_validation as cv
 
+from . import (
+    ATTR_DATA, ATTR_MESSAGE, DOMAIN, PLATFORM_SCHEMA, BaseNotificationService)
+
 _LOGGER = logging.getLogger(__name__)
 
 CONF_SERVICES = 'services'
diff --git a/homeassistant/components/notify/hipchat.py b/homeassistant/components/notify/hipchat.py
index 344827c00..8ce7b8b12 100644
--- a/homeassistant/components/notify/hipchat.py
+++ b/homeassistant/components/notify/hipchat.py
@@ -8,10 +8,10 @@ import logging
 
 import voluptuous as vol
 
+from homeassistant.const import CONF_HOST, CONF_ROOM, CONF_TOKEN
 import homeassistant.helpers.config_validation as cv
-from homeassistant.components.notify import (
-    ATTR_TARGET, ATTR_DATA, PLATFORM_SCHEMA, BaseNotificationService)
-from homeassistant.const import CONF_TOKEN, CONF_HOST, CONF_ROOM
+
+from . import ATTR_DATA, ATTR_TARGET, PLATFORM_SCHEMA, BaseNotificationService
 
 REQUIREMENTS = ['hipnotify==1.0.8']
 
diff --git a/homeassistant/components/notify/html5.py b/homeassistant/components/notify/html5.py
index 17f7e3163..f9bf36e61 100644
--- a/homeassistant/components/notify/html5.py
+++ b/homeassistant/components/notify/html5.py
@@ -5,9 +5,9 @@ For more details about this platform, please refer to the documentation at
 https://home-assistant.io/components/notify.html5/
 """
 import datetime
+from functools import partial
 import json
 import logging
-from functools import partial
 import time
 import uuid
 
@@ -15,18 +15,19 @@ from aiohttp.hdrs import AUTHORIZATION
 import voluptuous as vol
 from voluptuous.humanize import humanize_error
 
-from homeassistant.util.json import load_json, save_json
-from homeassistant.exceptions import HomeAssistantError
 from homeassistant.components import websocket_api
 from homeassistant.components.frontend import add_manifest_json_key
 from homeassistant.components.http import HomeAssistantView
-from homeassistant.components.notify import (
-    ATTR_DATA, ATTR_TITLE, ATTR_TARGET, PLATFORM_SCHEMA, ATTR_TITLE_DEFAULT,
-    BaseNotificationService, DOMAIN)
 from homeassistant.const import (
-    URL_ROOT, HTTP_BAD_REQUEST, HTTP_UNAUTHORIZED, HTTP_INTERNAL_SERVER_ERROR)
+    HTTP_BAD_REQUEST, HTTP_INTERNAL_SERVER_ERROR, HTTP_UNAUTHORIZED, URL_ROOT)
+from homeassistant.exceptions import HomeAssistantError
 from homeassistant.helpers import config_validation as cv
 from homeassistant.util import ensure_unique_string
+from homeassistant.util.json import load_json, save_json
+
+from . import (
+    ATTR_DATA, ATTR_TARGET, ATTR_TITLE, ATTR_TITLE_DEFAULT, DOMAIN,
+    PLATFORM_SCHEMA, BaseNotificationService)
 
 REQUIREMENTS = ['pywebpush==1.6.0']
 
diff --git a/homeassistant/components/notify/kodi.py b/homeassistant/components/notify/kodi.py
index 50d2246cd..2dd33bf89 100644
--- a/homeassistant/components/notify/kodi.py
+++ b/homeassistant/components/notify/kodi.py
@@ -10,14 +10,15 @@ import aiohttp
 import voluptuous as vol
 
 from homeassistant.const import (
-    ATTR_ICON, CONF_HOST, CONF_PORT, CONF_USERNAME, CONF_PASSWORD,
-    CONF_PROXY_SSL)
-from homeassistant.components.notify import (
-    ATTR_TITLE, ATTR_TITLE_DEFAULT, ATTR_DATA, PLATFORM_SCHEMA,
-    BaseNotificationService)
+    ATTR_ICON, CONF_HOST, CONF_PASSWORD, CONF_PORT, CONF_PROXY_SSL,
+    CONF_USERNAME)
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 import homeassistant.helpers.config_validation as cv
 
+from . import (
+    ATTR_DATA, ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA,
+    BaseNotificationService)
+
 REQUIREMENTS = ['jsonrpc-async==0.6']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/notify/lannouncer.py b/homeassistant/components/notify/lannouncer.py
index 5677f38b0..5c975e842 100644
--- a/homeassistant/components/notify/lannouncer.py
+++ b/homeassistant/components/notify/lannouncer.py
@@ -5,16 +5,16 @@ For more details about this platform, please refer to the documentation at
 https://home-assistant.io/components/notify.lannouncer/
 """
 import logging
-
-from urllib.parse import urlencode
 import socket
+from urllib.parse import urlencode
+
 import voluptuous as vol
 
-from homeassistant.components.notify import (
-    PLATFORM_SCHEMA, ATTR_DATA, BaseNotificationService)
-from homeassistant.const import (CONF_HOST, CONF_PORT)
+from homeassistant.const import CONF_HOST, CONF_PORT
 import homeassistant.helpers.config_validation as cv
 
+from . import ATTR_DATA, PLATFORM_SCHEMA, BaseNotificationService
+
 ATTR_METHOD = 'method'
 ATTR_METHOD_DEFAULT = 'speak'
 ATTR_METHOD_ALLOWED = ['speak', 'alarm']
diff --git a/homeassistant/components/notify/llamalab_automate.py b/homeassistant/components/notify/llamalab_automate.py
index 0ddcb450b..d3689dbbd 100644
--- a/homeassistant/components/notify/llamalab_automate.py
+++ b/homeassistant/components/notify/llamalab_automate.py
@@ -5,14 +5,14 @@ For more details about this platform, please refer to the documentation at
 https://home-assistant.io/components/notify.llamalab_automate/
 """
 import logging
+
 import requests
 import voluptuous as vol
 
-from homeassistant.components.notify import (
-    BaseNotificationService, PLATFORM_SCHEMA)
 from homeassistant.const import CONF_API_KEY, CONF_DEVICE
 from homeassistant.helpers import config_validation as cv
 
+from . import PLATFORM_SCHEMA, BaseNotificationService
 
 _LOGGER = logging.getLogger(__name__)
 _RESOURCE = 'https://llamalab.com/automate/cloud/message'
diff --git a/homeassistant/components/notify/mastodon.py b/homeassistant/components/notify/mastodon.py
index 095e3f98f..59c787bc0 100644
--- a/homeassistant/components/notify/mastodon.py
+++ b/homeassistant/components/notify/mastodon.py
@@ -8,11 +8,11 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.components.notify import (
-    PLATFORM_SCHEMA, BaseNotificationService)
 from homeassistant.const import CONF_ACCESS_TOKEN
 import homeassistant.helpers.config_validation as cv
 
+from . import PLATFORM_SCHEMA, BaseNotificationService
+
 REQUIREMENTS = ['Mastodon.py==1.3.1']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/notify/message_bird.py b/homeassistant/components/notify/message_bird.py
index fa747ccba..c45d153d8 100644
--- a/homeassistant/components/notify/message_bird.py
+++ b/homeassistant/components/notify/message_bird.py
@@ -8,10 +8,10 @@ import logging
 
 import voluptuous as vol
 
-import homeassistant.helpers.config_validation as cv
-from homeassistant.components.notify import (
-    ATTR_TARGET, PLATFORM_SCHEMA, BaseNotificationService)
 from homeassistant.const import CONF_API_KEY, CONF_SENDER
+import homeassistant.helpers.config_validation as cv
+
+from . import ATTR_TARGET, PLATFORM_SCHEMA, BaseNotificationService
 
 REQUIREMENTS = ['messagebird==1.2.0']
 
diff --git a/homeassistant/components/notify/mycroft.py b/homeassistant/components/notify/mycroft.py
index 1fd22c5c4..e9cd44d5d 100644
--- a/homeassistant/components/notify/mycroft.py
+++ b/homeassistant/components/notify/mycroft.py
@@ -6,8 +6,7 @@ https://home-assistant.io/components/notify.mycroft/
 """
 import logging
 
-
-from homeassistant.components.notify import BaseNotificationService
+from . import BaseNotificationService
 
 DEPENDENCIES = ['mycroft']
 
diff --git a/homeassistant/components/notify/nfandroidtv.py b/homeassistant/components/notify/nfandroidtv.py
index f99d97574..8127b4b3e 100644
--- a/homeassistant/components/notify/nfandroidtv.py
+++ b/homeassistant/components/notify/nfandroidtv.py
@@ -4,21 +4,21 @@ Notifications for Android TV notification service.
 For more details about this platform, please refer to the documentation at
 https://home-assistant.io/components/notify.nfandroidtv/
 """
-import logging
-import io
 import base64
+import io
+import logging
 
 import requests
-from requests.auth import HTTPBasicAuth
-from requests.auth import HTTPDigestAuth
+from requests.auth import HTTPBasicAuth, HTTPDigestAuth
 import voluptuous as vol
 
-from homeassistant.components.notify import (
-    ATTR_TITLE, ATTR_TITLE_DEFAULT, ATTR_DATA, BaseNotificationService,
-    PLATFORM_SCHEMA)
 from homeassistant.const import CONF_TIMEOUT
 import homeassistant.helpers.config_validation as cv
 
+from . import (
+    ATTR_DATA, ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA,
+    BaseNotificationService)
+
 _LOGGER = logging.getLogger(__name__)
 
 CONF_IP = 'host'
diff --git a/homeassistant/components/notify/prowl.py b/homeassistant/components/notify/prowl.py
index f0741766a..27ce8d0fb 100644
--- a/homeassistant/components/notify/prowl.py
+++ b/homeassistant/components/notify/prowl.py
@@ -4,18 +4,19 @@ Prowl notification service.
 For more details about this platform, please refer to the documentation at
 https://home-assistant.io/components/notify.prowl/
 """
-import logging
 import asyncio
+import logging
 
 import async_timeout
 import voluptuous as vol
 
-from homeassistant.components.notify import (
-    ATTR_TITLE, ATTR_TITLE_DEFAULT, ATTR_DATA, PLATFORM_SCHEMA,
-    BaseNotificationService)
 from homeassistant.const import CONF_API_KEY
-import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
+import homeassistant.helpers.config_validation as cv
+
+from . import (
+    ATTR_DATA, ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA,
+    BaseNotificationService)
 
 _LOGGER = logging.getLogger(__name__)
 _RESOURCE = 'https://api.prowlapp.com/publicapi/'
diff --git a/homeassistant/components/notify/pushbullet.py b/homeassistant/components/notify/pushbullet.py
index a94cf4f10..505d6f4e1 100644
--- a/homeassistant/components/notify/pushbullet.py
+++ b/homeassistant/components/notify/pushbullet.py
@@ -9,12 +9,13 @@ import mimetypes
 
 import voluptuous as vol
 
-from homeassistant.components.notify import (
-    ATTR_DATA, ATTR_TARGET, ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA,
-    BaseNotificationService)
 from homeassistant.const import CONF_API_KEY
 import homeassistant.helpers.config_validation as cv
 
+from . import (
+    ATTR_DATA, ATTR_TARGET, ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA,
+    BaseNotificationService)
+
 REQUIREMENTS = ['pushbullet.py==0.11.0']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/notify/pushetta.py b/homeassistant/components/notify/pushetta.py
index a29cd5871..5db671775 100644
--- a/homeassistant/components/notify/pushetta.py
+++ b/homeassistant/components/notify/pushetta.py
@@ -8,11 +8,12 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.components.notify import (
-    ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA, BaseNotificationService)
 from homeassistant.const import CONF_API_KEY
 import homeassistant.helpers.config_validation as cv
 
+from . import (
+    ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA, BaseNotificationService)
+
 _LOGGER = logging.getLogger(__name__)
 REQUIREMENTS = ['pushetta==1.0.15']
 
diff --git a/homeassistant/components/notify/pushover.py b/homeassistant/components/notify/pushover.py
index b249ca804..372ea361f 100644
--- a/homeassistant/components/notify/pushover.py
+++ b/homeassistant/components/notify/pushover.py
@@ -8,12 +8,13 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.components.notify import (
-    ATTR_TITLE, ATTR_TITLE_DEFAULT, ATTR_TARGET, ATTR_DATA,
-    BaseNotificationService, PLATFORM_SCHEMA)
 from homeassistant.const import CONF_API_KEY
 import homeassistant.helpers.config_validation as cv
 
+from . import (
+    ATTR_DATA, ATTR_TARGET, ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA,
+    BaseNotificationService)
+
 REQUIREMENTS = ['python-pushover==0.3']
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/notify/pushsafer.py b/homeassistant/components/notify/pushsafer.py
index 94dc08a81..9a3308ff2 100644
--- a/homeassistant/components/notify/pushsafer.py
+++ b/homeassistant/components/notify/pushsafer.py
@@ -4,19 +4,20 @@ Pushsafer platform for notify component.
 For more details about this platform, please refer to the documentation at
 https://home-assistant.io/components/notify.pushsafer/
 """
-import logging
 import base64
+import logging
 import mimetypes
 
 import requests
 from requests.auth import HTTPBasicAuth
 import voluptuous as vol
 
-from homeassistant.components.notify import (
-    ATTR_TITLE, ATTR_TITLE_DEFAULT, ATTR_TARGET, ATTR_DATA,
-    PLATFORM_SCHEMA, BaseNotificationService)
 import homeassistant.helpers.config_validation as cv
 
+from . import (
+    ATTR_DATA, ATTR_TARGET, ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA,
+    BaseNotificationService)
+
 _LOGGER = logging.getLogger(__name__)
 _RESOURCE = 'https://www.pushsafer.com/api'
 _ALLOWED_IMAGES = ['image/gif', 'image/jpeg', 'image/png']
diff --git a/homeassistant/components/notify/rest.py b/homeassistant/components/notify/rest.py
index 469319a0f..eec2ea4aa 100644
--- a/homeassistant/components/notify/rest.py
+++ b/homeassistant/components/notify/rest.py
@@ -9,16 +9,16 @@ import logging
 import requests
 import voluptuous as vol
 
-from homeassistant.components.notify import (
-    ATTR_TARGET, ATTR_TITLE, ATTR_TITLE_DEFAULT, BaseNotificationService,
-    PLATFORM_SCHEMA)
-from homeassistant.const import (CONF_AUTHENTICATION, CONF_HEADERS,
-                                 CONF_METHOD, CONF_NAME, CONF_PASSWORD,
-                                 CONF_RESOURCE, CONF_USERNAME, CONF_VERIFY_SSL,
-                                 HTTP_BASIC_AUTHENTICATION,
-                                 HTTP_DIGEST_AUTHENTICATION)
+from homeassistant.const import (
+    CONF_AUTHENTICATION, CONF_HEADERS, CONF_METHOD, CONF_NAME, CONF_PASSWORD,
+    CONF_RESOURCE, CONF_USERNAME, CONF_VERIFY_SSL, HTTP_BASIC_AUTHENTICATION,
+    HTTP_DIGEST_AUTHENTICATION)
 import homeassistant.helpers.config_validation as cv
 
+from . import (
+    ATTR_TARGET, ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA,
+    BaseNotificationService)
+
 CONF_DATA = 'data'
 CONF_DATA_TEMPLATE = 'data_template'
 CONF_MESSAGE_PARAMETER_NAME = 'message_param_name'
diff --git a/homeassistant/components/notify/rocketchat.py b/homeassistant/components/notify/rocketchat.py
index e9b481b1c..116c32993 100644
--- a/homeassistant/components/notify/rocketchat.py
+++ b/homeassistant/components/notify/rocketchat.py
@@ -8,11 +8,11 @@ import logging
 
 import voluptuous as vol
 
-import homeassistant.helpers.config_validation as cv
 from homeassistant.const import (
-    CONF_URL, CONF_USERNAME, CONF_PASSWORD, CONF_ROOM)
-from homeassistant.components.notify import (
-    ATTR_DATA, PLATFORM_SCHEMA, BaseNotificationService)
+    CONF_PASSWORD, CONF_ROOM, CONF_URL, CONF_USERNAME)
+import homeassistant.helpers.config_validation as cv
+
+from . import ATTR_DATA, PLATFORM_SCHEMA, BaseNotificationService
 
 REQUIREMENTS = ['rocketchat-API==0.6.1']
 
diff --git a/homeassistant/components/notify/sendgrid.py b/homeassistant/components/notify/sendgrid.py
index e72dcbbed..6bab566bf 100644
--- a/homeassistant/components/notify/sendgrid.py
+++ b/homeassistant/components/notify/sendgrid.py
@@ -8,12 +8,13 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.components.notify import (
-    ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA, BaseNotificationService)
 from homeassistant.const import (
-    CONF_API_KEY, CONF_SENDER, CONF_RECIPIENT, CONTENT_TYPE_TEXT_PLAIN)
+    CONF_API_KEY, CONF_RECIPIENT, CONF_SENDER, CONTENT_TYPE_TEXT_PLAIN)
 import homeassistant.helpers.config_validation as cv
 
+from . import (
+    ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA, BaseNotificationService)
+
 REQUIREMENTS = ['sendgrid==5.6.0']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/notify/simplepush.py b/homeassistant/components/notify/simplepush.py
index 9d5c58fc5..1d198b5ad 100644
--- a/homeassistant/components/notify/simplepush.py
+++ b/homeassistant/components/notify/simplepush.py
@@ -8,10 +8,11 @@ import logging
 
 import voluptuous as vol
 
-import homeassistant.helpers.config_validation as cv
-from homeassistant.components.notify import (
-    ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA, BaseNotificationService)
 from homeassistant.const import CONF_PASSWORD
+import homeassistant.helpers.config_validation as cv
+
+from . import (
+    ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA, BaseNotificationService)
 
 REQUIREMENTS = ['simplepush==1.1.4']
 
diff --git a/homeassistant/components/notify/slack.py b/homeassistant/components/notify/slack.py
index 961f67120..7aee58ed0 100644
--- a/homeassistant/components/notify/slack.py
+++ b/homeassistant/components/notify/slack.py
@@ -7,15 +7,15 @@ https://home-assistant.io/components/notify.slack/
 import logging
 
 import requests
-from requests.auth import HTTPBasicAuth
-from requests.auth import HTTPDigestAuth
+from requests.auth import HTTPBasicAuth, HTTPDigestAuth
 import voluptuous as vol
 
+from homeassistant.const import CONF_API_KEY, CONF_ICON, CONF_USERNAME
 import homeassistant.helpers.config_validation as cv
-from homeassistant.components.notify import (
-    ATTR_TARGET, ATTR_TITLE, ATTR_DATA, PLATFORM_SCHEMA,
+
+from . import (
+    ATTR_DATA, ATTR_TARGET, ATTR_TITLE, PLATFORM_SCHEMA,
     BaseNotificationService)
-from homeassistant.const import (CONF_API_KEY, CONF_USERNAME, CONF_ICON)
 
 REQUIREMENTS = ['slacker==0.12.0']
 
diff --git a/homeassistant/components/notify/smtp.py b/homeassistant/components/notify/smtp.py
index e3a6f8b85..995aae76c 100644
--- a/homeassistant/components/notify/smtp.py
+++ b/homeassistant/components/notify/smtp.py
@@ -4,25 +4,26 @@ Mail (SMTP) notification service.
 For more details about this platform, please refer to the documentation at
 https://home-assistant.io/components/notify.smtp/
 """
-import logging
-import smtplib
+from email.mime.application import MIMEApplication
+from email.mime.image import MIMEImage
 from email.mime.multipart import MIMEMultipart
 from email.mime.text import MIMEText
-from email.mime.image import MIMEImage
-from email.mime.application import MIMEApplication
 import email.utils
+import logging
 import os
+import smtplib
 
 import voluptuous as vol
 
+from homeassistant.const import (
+    CONF_PASSWORD, CONF_PORT, CONF_RECIPIENT, CONF_SENDER, CONF_TIMEOUT,
+    CONF_USERNAME)
 import homeassistant.helpers.config_validation as cv
 import homeassistant.util.dt as dt_util
-from homeassistant.components.notify import (
-    ATTR_TITLE, ATTR_TITLE_DEFAULT, ATTR_DATA, PLATFORM_SCHEMA,
+
+from . import (
+    ATTR_DATA, ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA,
     BaseNotificationService)
-from homeassistant.const import (
-    CONF_USERNAME, CONF_PASSWORD, CONF_PORT, CONF_TIMEOUT,
-    CONF_SENDER, CONF_RECIPIENT)
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/notify/stride.py b/homeassistant/components/notify/stride.py
index f31e50a58..f5f5b52ab 100644
--- a/homeassistant/components/notify/stride.py
+++ b/homeassistant/components/notify/stride.py
@@ -8,10 +8,10 @@ import logging
 
 import voluptuous as vol
 
+from homeassistant.const import CONF_ROOM, CONF_TOKEN
 import homeassistant.helpers.config_validation as cv
-from homeassistant.components.notify import (
-    ATTR_TARGET, ATTR_DATA, PLATFORM_SCHEMA, BaseNotificationService)
-from homeassistant.const import CONF_TOKEN, CONF_ROOM
+
+from . import ATTR_DATA, ATTR_TARGET, PLATFORM_SCHEMA, BaseNotificationService
 
 REQUIREMENTS = ['pystride==0.1.7']
 
diff --git a/homeassistant/components/notify/synology_chat.py b/homeassistant/components/notify/synology_chat.py
index 922631b40..023586ae5 100644
--- a/homeassistant/components/notify/synology_chat.py
+++ b/homeassistant/components/notify/synology_chat.py
@@ -4,17 +4,17 @@ SynologyChat platform for notify component.
 For more details about this platform, please refer to the documentation at
 https://home-assistant.io/components/notify.synology_chat/
 """
-import logging
 import json
+import logging
 
 import requests
 import voluptuous as vol
 
-from homeassistant.components.notify import (
-    BaseNotificationService, PLATFORM_SCHEMA, ATTR_DATA)
 from homeassistant.const import CONF_RESOURCE, CONF_VERIFY_SSL
 import homeassistant.helpers.config_validation as cv
 
+from . import ATTR_DATA, PLATFORM_SCHEMA, BaseNotificationService
+
 ATTR_FILE_URL = 'file_url'
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/notify/syslog.py b/homeassistant/components/notify/syslog.py
index 740148e28..4f7900b8d 100644
--- a/homeassistant/components/notify/syslog.py
+++ b/homeassistant/components/notify/syslog.py
@@ -8,7 +8,7 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.components.notify import (
+from . import (
     ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA, BaseNotificationService)
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/notify/telegram.py b/homeassistant/components/notify/telegram.py
index 1dff82fa2..a6975f60f 100644
--- a/homeassistant/components/notify/telegram.py
+++ b/homeassistant/components/notify/telegram.py
@@ -8,11 +8,12 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.components.notify import (
-    ATTR_MESSAGE, ATTR_TITLE, ATTR_DATA, ATTR_TARGET,
-    PLATFORM_SCHEMA, BaseNotificationService)
 from homeassistant.const import ATTR_LOCATION
 
+from . import (
+    ATTR_DATA, ATTR_MESSAGE, ATTR_TARGET, ATTR_TITLE, PLATFORM_SCHEMA,
+    BaseNotificationService)
+
 _LOGGER = logging.getLogger(__name__)
 
 DOMAIN = 'telegram_bot'
diff --git a/homeassistant/components/notify/twilio_call.py b/homeassistant/components/notify/twilio_call.py
index 538a4fd95..4826ab776 100644
--- a/homeassistant/components/notify/twilio_call.py
+++ b/homeassistant/components/notify/twilio_call.py
@@ -11,8 +11,8 @@ import voluptuous as vol
 
 from homeassistant.components.twilio import DATA_TWILIO
 import homeassistant.helpers.config_validation as cv
-from homeassistant.components.notify import (
-    ATTR_TARGET, PLATFORM_SCHEMA, BaseNotificationService)
+
+from . import ATTR_TARGET, PLATFORM_SCHEMA, BaseNotificationService
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/notify/twilio_sms.py b/homeassistant/components/notify/twilio_sms.py
index e106c5ae6..165e74397 100644
--- a/homeassistant/components/notify/twilio_sms.py
+++ b/homeassistant/components/notify/twilio_sms.py
@@ -10,8 +10,8 @@ import voluptuous as vol
 
 from homeassistant.components.twilio import DATA_TWILIO
 import homeassistant.helpers.config_validation as cv
-from homeassistant.components.notify import (
-    ATTR_TARGET, PLATFORM_SCHEMA, BaseNotificationService)
+
+from . import ATTR_TARGET, PLATFORM_SCHEMA, BaseNotificationService
 
 _LOGGER = logging.getLogger(__name__)
 DEPENDENCIES = ["twilio"]
diff --git a/homeassistant/components/notify/twitter.py b/homeassistant/components/notify/twitter.py
index d49495271..43d977d26 100644
--- a/homeassistant/components/notify/twitter.py
+++ b/homeassistant/components/notify/twitter.py
@@ -4,21 +4,21 @@ Twitter platform for notify component.
 For more details about this platform, please refer to the documentation at
 https://home-assistant.io/components/notify.twitter/
 """
+from datetime import datetime, timedelta
+from functools import partial
 import json
 import logging
 import mimetypes
 import os
-from datetime import timedelta, datetime
-from functools import partial
 
 import voluptuous as vol
 
-import homeassistant.helpers.config_validation as cv
-from homeassistant.components.notify import (
-    ATTR_DATA, PLATFORM_SCHEMA, BaseNotificationService)
 from homeassistant.const import CONF_ACCESS_TOKEN, CONF_USERNAME
+import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.event import async_track_point_in_time
 
+from . import ATTR_DATA, PLATFORM_SCHEMA, BaseNotificationService
+
 REQUIREMENTS = ['TwitterAPI==2.5.9']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/notify/xmpp.py b/homeassistant/components/notify/xmpp.py
index 462dd007d..382767431 100644
--- a/homeassistant/components/notify/xmpp.py
+++ b/homeassistant/components/notify/xmpp.py
@@ -14,13 +14,14 @@ import string
 import requests
 import voluptuous as vol
 
-from homeassistant.components.notify import (
-    ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA, BaseNotificationService)
 from homeassistant.const import (
     CONF_PASSWORD, CONF_RECIPIENT, CONF_RESOURCE, CONF_ROOM, CONF_SENDER)
 import homeassistant.helpers.config_validation as cv
 import homeassistant.helpers.template as template_helper
 
+from . import (
+    ATTR_TITLE, ATTR_TITLE_DEFAULT, PLATFORM_SCHEMA, BaseNotificationService)
+
 REQUIREMENTS = ['slixmpp==1.4.2']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/notify/yessssms.py b/homeassistant/components/notify/yessssms.py
index e16e384ca..19efa2a53 100644
--- a/homeassistant/components/notify/yessssms.py
+++ b/homeassistant/components/notify/yessssms.py
@@ -8,11 +8,10 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.components.notify import (
-    PLATFORM_SCHEMA, BaseNotificationService)
-from homeassistant.const import CONF_USERNAME, CONF_PASSWORD, CONF_RECIPIENT
+from homeassistant.const import CONF_PASSWORD, CONF_RECIPIENT, CONF_USERNAME
 import homeassistant.helpers.config_validation as cv
 
+from . import PLATFORM_SCHEMA, BaseNotificationService
 
 REQUIREMENTS = ['YesssSMS==0.2.3']
 
diff --git a/homeassistant/components/nuheat/climate.py b/homeassistant/components/nuheat/climate.py
index f52d2c7b5..27e909f8f 100644
--- a/homeassistant/components/nuheat/climate.py
+++ b/homeassistant/components/nuheat/climate.py
@@ -4,29 +4,22 @@ Support for NuHeat thermostats.
 For more details about this platform, please refer to the documentation at
 https://home-assistant.io/components/climate.nuheat/
 """
-import logging
 from datetime import timedelta
+import logging
 
 import voluptuous as vol
 
 from homeassistant.components.climate import ClimateDevice
 from homeassistant.components.climate.const import (
-    DOMAIN,
-    SUPPORT_HOLD_MODE,
-    SUPPORT_OPERATION_MODE,
-    SUPPORT_TARGET_TEMPERATURE,
-    STATE_AUTO,
-    STATE_HEAT,
-    STATE_IDLE)
-from homeassistant.components.nuheat import DOMAIN as NUHEAT_DOMAIN
+    DOMAIN, STATE_AUTO, STATE_HEAT, STATE_IDLE, SUPPORT_HOLD_MODE,
+    SUPPORT_OPERATION_MODE, SUPPORT_TARGET_TEMPERATURE)
 from homeassistant.const import (
-    ATTR_ENTITY_ID,
-    ATTR_TEMPERATURE,
-    TEMP_CELSIUS,
-    TEMP_FAHRENHEIT)
+    ATTR_ENTITY_ID, ATTR_TEMPERATURE, TEMP_CELSIUS, TEMP_FAHRENHEIT)
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util import Throttle
 
+from . import DOMAIN as NUHEAT_DOMAIN
+
 DEPENDENCIES = ["nuheat"]
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/octoprint/binary_sensor.py b/homeassistant/components/octoprint/binary_sensor.py
index cb8601777..be3381f3b 100644
--- a/homeassistant/components/octoprint/binary_sensor.py
+++ b/homeassistant/components/octoprint/binary_sensor.py
@@ -3,10 +3,10 @@ import logging
 
 import requests
 
-from homeassistant.components.octoprint import (BINARY_SENSOR_TYPES,
-                                                DOMAIN as COMPONENT_DOMAIN)
 from homeassistant.components.binary_sensor import BinarySensorDevice
 
+from . import BINARY_SENSOR_TYPES, DOMAIN as COMPONENT_DOMAIN
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['octoprint']
diff --git a/homeassistant/components/octoprint/sensor.py b/homeassistant/components/octoprint/sensor.py
index 2df307f02..f07d88d11 100644
--- a/homeassistant/components/octoprint/sensor.py
+++ b/homeassistant/components/octoprint/sensor.py
@@ -3,11 +3,11 @@ import logging
 
 import requests
 
-from homeassistant.components.octoprint import (SENSOR_TYPES,
-                                                DOMAIN as COMPONENT_DOMAIN)
-from homeassistant.const import (TEMP_CELSIUS)
+from homeassistant.const import TEMP_CELSIUS
 from homeassistant.helpers.entity import Entity
 
+from . import DOMAIN as COMPONENT_DOMAIN, SENSOR_TYPES
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['octoprint']
diff --git a/homeassistant/components/opentherm_gw/binary_sensor.py b/homeassistant/components/opentherm_gw/binary_sensor.py
index b35998c80..d0b60a257 100644
--- a/homeassistant/components/opentherm_gw/binary_sensor.py
+++ b/homeassistant/components/opentherm_gw/binary_sensor.py
@@ -2,12 +2,12 @@
 import logging
 
 from homeassistant.components.binary_sensor import (
-    BinarySensorDevice, ENTITY_ID_FORMAT)
-from homeassistant.components.opentherm_gw import (
-    DATA_GW_VARS, DATA_OPENTHERM_GW, SIGNAL_OPENTHERM_GW_UPDATE)
+    ENTITY_ID_FORMAT, BinarySensorDevice)
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.helpers.entity import async_generate_entity_id
 
+from . import DATA_GW_VARS, DATA_OPENTHERM_GW, SIGNAL_OPENTHERM_GW_UPDATE
+
 _LOGGER = logging.getLogger(__name__)
 
 DEVICE_CLASS_COLD = 'cold'
diff --git a/homeassistant/components/opentherm_gw/climate.py b/homeassistant/components/opentherm_gw/climate.py
index 1a7c03163..58ce49a9b 100644
--- a/homeassistant/components/opentherm_gw/climate.py
+++ b/homeassistant/components/opentherm_gw/climate.py
@@ -3,14 +3,15 @@ import logging
 
 from homeassistant.components.climate import ClimateDevice
 from homeassistant.components.climate.const import (
-    STATE_IDLE, STATE_HEAT, STATE_COOL, SUPPORT_TARGET_TEMPERATURE)
-from homeassistant.components.opentherm_gw import (
+    STATE_COOL, STATE_HEAT, STATE_IDLE, SUPPORT_TARGET_TEMPERATURE)
+from homeassistant.const import (
+    ATTR_TEMPERATURE, CONF_NAME, PRECISION_HALVES, PRECISION_TENTHS,
+    PRECISION_WHOLE, TEMP_CELSIUS)
+from homeassistant.helpers.dispatcher import async_dispatcher_connect
+
+from . import (
     CONF_FLOOR_TEMP, CONF_PRECISION, DATA_DEVICE, DATA_GW_VARS,
     DATA_OPENTHERM_GW, SIGNAL_OPENTHERM_GW_UPDATE)
-from homeassistant.const import (ATTR_TEMPERATURE, CONF_NAME, PRECISION_HALVES,
-                                 PRECISION_TENTHS, PRECISION_WHOLE,
-                                 TEMP_CELSIUS)
-from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/opentherm_gw/sensor.py b/homeassistant/components/opentherm_gw/sensor.py
index 070f847e5..5c64b8ab7 100644
--- a/homeassistant/components/opentherm_gw/sensor.py
+++ b/homeassistant/components/opentherm_gw/sensor.py
@@ -1,13 +1,13 @@
 """Support for OpenTherm Gateway sensors."""
 import logging
 
-from homeassistant.components.opentherm_gw import (
-    DATA_GW_VARS, DATA_OPENTHERM_GW, SIGNAL_OPENTHERM_GW_UPDATE)
 from homeassistant.components.sensor import ENTITY_ID_FORMAT
 from homeassistant.const import DEVICE_CLASS_TEMPERATURE, TEMP_CELSIUS
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.helpers.entity import Entity, async_generate_entity_id
 
+from . import DATA_GW_VARS, DATA_OPENTHERM_GW, SIGNAL_OPENTHERM_GW_UPDATE
+
 _LOGGER = logging.getLogger(__name__)
 
 UNIT_BAR = 'bar'
diff --git a/homeassistant/components/openuv/binary_sensor.py b/homeassistant/components/openuv/binary_sensor.py
index b790427b2..cfc82a757 100644
--- a/homeassistant/components/openuv/binary_sensor.py
+++ b/homeassistant/components/openuv/binary_sensor.py
@@ -2,13 +2,14 @@
 import logging
 
 from homeassistant.components.binary_sensor import BinarySensorDevice
-from homeassistant.components.openuv import (
-    BINARY_SENSORS, DATA_OPENUV_CLIENT, DATA_PROTECTION_WINDOW, DOMAIN,
-    TOPIC_UPDATE, TYPE_PROTECTION_WINDOW, OpenUvEntity)
 from homeassistant.core import callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.util.dt import as_local, parse_datetime, utcnow
 
+from . import (
+    BINARY_SENSORS, DATA_OPENUV_CLIENT, DATA_PROTECTION_WINDOW, DOMAIN,
+    TOPIC_UPDATE, TYPE_PROTECTION_WINDOW, OpenUvEntity)
+
 _LOGGER = logging.getLogger(__name__)
 ATTR_PROTECTION_WINDOW_ENDING_TIME = 'end_time'
 ATTR_PROTECTION_WINDOW_ENDING_UV = 'end_uv'
diff --git a/homeassistant/components/openuv/sensor.py b/homeassistant/components/openuv/sensor.py
index 489a100a5..42780d57b 100644
--- a/homeassistant/components/openuv/sensor.py
+++ b/homeassistant/components/openuv/sensor.py
@@ -1,15 +1,16 @@
 """Support for OpenUV sensors."""
 import logging
 
-from homeassistant.components.openuv import (
+from homeassistant.core import callback
+from homeassistant.helpers.dispatcher import async_dispatcher_connect
+from homeassistant.util.dt import as_local, parse_datetime
+
+from . import (
     DATA_OPENUV_CLIENT, DATA_UV, DOMAIN, SENSORS, TOPIC_UPDATE,
     TYPE_CURRENT_OZONE_LEVEL, TYPE_CURRENT_UV_INDEX, TYPE_CURRENT_UV_LEVEL,
     TYPE_MAX_UV_INDEX, TYPE_SAFE_EXPOSURE_TIME_1, TYPE_SAFE_EXPOSURE_TIME_2,
     TYPE_SAFE_EXPOSURE_TIME_3, TYPE_SAFE_EXPOSURE_TIME_4,
     TYPE_SAFE_EXPOSURE_TIME_5, TYPE_SAFE_EXPOSURE_TIME_6, OpenUvEntity)
-from homeassistant.core import callback
-from homeassistant.helpers.dispatcher import async_dispatcher_connect
-from homeassistant.util.dt import as_local, parse_datetime
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/owlet/binary_sensor.py b/homeassistant/components/owlet/binary_sensor.py
index cb6627815..bcdd0fec1 100644
--- a/homeassistant/components/owlet/binary_sensor.py
+++ b/homeassistant/components/owlet/binary_sensor.py
@@ -2,9 +2,9 @@
 from datetime import timedelta
 
 from homeassistant.components.binary_sensor import BinarySensorDevice
-from homeassistant.components.owlet import DOMAIN as OWLET_DOMAIN
 from homeassistant.util import dt as dt_util
 
+from . import DOMAIN as OWLET_DOMAIN
 from .const import SENSOR_BASE_STATION, SENSOR_MOVEMENT
 
 SCAN_INTERVAL = timedelta(seconds=120)
diff --git a/homeassistant/components/owlet/sensor.py b/homeassistant/components/owlet/sensor.py
index b91cc3877..849e0858a 100644
--- a/homeassistant/components/owlet/sensor.py
+++ b/homeassistant/components/owlet/sensor.py
@@ -1,10 +1,10 @@
 """Support for Owlet sensors."""
 from datetime import timedelta
 
-from homeassistant.components.owlet import DOMAIN as OWLET_DOMAIN
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import dt as dt_util
 
+from . import DOMAIN as OWLET_DOMAIN
 from .const import SENSOR_HEART_RATE, SENSOR_OXYGEN_LEVEL
 
 SCAN_INTERVAL = timedelta(seconds=120)
diff --git a/homeassistant/components/owntracks/device_tracker.py b/homeassistant/components/owntracks/device_tracker.py
index be8698a47..f1214b62b 100644
--- a/homeassistant/components/owntracks/device_tracker.py
+++ b/homeassistant/components/owntracks/device_tracker.py
@@ -9,12 +9,11 @@ import logging
 
 from homeassistant.components import zone as zone_comp
 from homeassistant.components.device_tracker import (
-    ATTR_SOURCE_TYPE, SOURCE_TYPE_BLUETOOTH_LE, SOURCE_TYPE_GPS
-)
-from homeassistant.components.owntracks import DOMAIN as OT_DOMAIN
+    ATTR_SOURCE_TYPE, SOURCE_TYPE_BLUETOOTH_LE, SOURCE_TYPE_GPS)
 from homeassistant.const import STATE_HOME
-from homeassistant.util import slugify, decorator
+from homeassistant.util import decorator, slugify
 
+from . import DOMAIN as OT_DOMAIN
 
 DEPENDENCIES = ['owntracks']
 
diff --git a/homeassistant/components/plum_lightpad/light.py b/homeassistant/components/plum_lightpad/light.py
index 43cceaa67..233539560 100644
--- a/homeassistant/components/plum_lightpad/light.py
+++ b/homeassistant/components/plum_lightpad/light.py
@@ -1,9 +1,10 @@
 """Support for Plum Lightpad lights."""
 from homeassistant.components.light import (
     ATTR_BRIGHTNESS, ATTR_HS_COLOR, SUPPORT_BRIGHTNESS, SUPPORT_COLOR, Light)
-from homeassistant.components.plum_lightpad import PLUM_DATA
 import homeassistant.util.color as color_util
 
+from . import PLUM_DATA
+
 DEPENDENCIES = ['plum_lightpad']
 
 
diff --git a/homeassistant/components/point/alarm_control_panel.py b/homeassistant/components/point/alarm_control_panel.py
index a50dffe42..4fd5ffea6 100644
--- a/homeassistant/components/point/alarm_control_panel.py
+++ b/homeassistant/components/point/alarm_control_panel.py
@@ -3,13 +3,13 @@ import logging
 
 from homeassistant.components.alarm_control_panel import (
     DOMAIN, AlarmControlPanel)
-from homeassistant.components.point.const import (
-    DOMAIN as POINT_DOMAIN, POINT_DISCOVERY_NEW, SIGNAL_WEBHOOK)
 from homeassistant.const import (
     STATE_ALARM_ARMED_AWAY, STATE_ALARM_DISARMED, STATE_ALARM_TRIGGERED)
 from homeassistant.core import callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
+from .const import DOMAIN as POINT_DOMAIN, POINT_DISCOVERY_NEW, SIGNAL_WEBHOOK
+
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/point/binary_sensor.py b/homeassistant/components/point/binary_sensor.py
index c29ce4216..2276d4e2f 100644
--- a/homeassistant/components/point/binary_sensor.py
+++ b/homeassistant/components/point/binary_sensor.py
@@ -2,12 +2,12 @@
 import logging
 
 from homeassistant.components.binary_sensor import DOMAIN, BinarySensorDevice
-from homeassistant.components.point import MinutPointEntity
-from homeassistant.components.point.const import (
-    DOMAIN as POINT_DOMAIN, POINT_DISCOVERY_NEW, SIGNAL_WEBHOOK)
 from homeassistant.core import callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
+from . import MinutPointEntity
+from .const import DOMAIN as POINT_DOMAIN, POINT_DISCOVERY_NEW, SIGNAL_WEBHOOK
+
 _LOGGER = logging.getLogger(__name__)
 
 EVENTS = {
diff --git a/homeassistant/components/point/sensor.py b/homeassistant/components/point/sensor.py
index 90b83ba42..46399c82a 100644
--- a/homeassistant/components/point/sensor.py
+++ b/homeassistant/components/point/sensor.py
@@ -1,9 +1,6 @@
 """Support for Minut Point sensors."""
 import logging
 
-from homeassistant.components.point import MinutPointEntity
-from homeassistant.components.point.const import (
-    DOMAIN as POINT_DOMAIN, POINT_DISCOVERY_NEW)
 from homeassistant.components.sensor import DOMAIN
 from homeassistant.const import (
     DEVICE_CLASS_HUMIDITY, DEVICE_CLASS_PRESSURE, DEVICE_CLASS_TEMPERATURE,
@@ -11,6 +8,9 @@ from homeassistant.const import (
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.util.dt import parse_datetime
 
+from . import MinutPointEntity
+from .const import DOMAIN as POINT_DOMAIN, POINT_DISCOVERY_NEW
+
 _LOGGER = logging.getLogger(__name__)
 
 DEVICE_CLASS_SOUND = 'sound_level'
diff --git a/homeassistant/components/ps4/__init__.py b/homeassistant/components/ps4/__init__.py
index 087d3f89f..edefb5e47 100644
--- a/homeassistant/components/ps4/__init__.py
+++ b/homeassistant/components/ps4/__init__.py
@@ -6,8 +6,9 @@ https://home-assistant.io/components/ps4/
 """
 import logging
 
-from homeassistant.components.ps4.config_flow import PlayStation4FlowHandler  # noqa: pylint: disable=unused-import
-from homeassistant.components.ps4.const import DOMAIN  # noqa: pylint: disable=unused-import
+from .config_flow import (  # noqa  pylint: disable=unused-import
+    PlayStation4FlowHandler)
+from .const import DOMAIN  # noqa: pylint: disable=unused-import
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/ps4/config_flow.py b/homeassistant/components/ps4/config_flow.py
index d000ed1f7..482c7383d 100644
--- a/homeassistant/components/ps4/config_flow.py
+++ b/homeassistant/components/ps4/config_flow.py
@@ -5,11 +5,11 @@ import logging
 import voluptuous as vol
 
 from homeassistant import config_entries
-from homeassistant.components.ps4.const import (
-    DEFAULT_NAME, DEFAULT_REGION, DOMAIN, REGIONS)
 from homeassistant.const import (
     CONF_CODE, CONF_HOST, CONF_IP_ADDRESS, CONF_NAME, CONF_REGION, CONF_TOKEN)
 
+from .const import DEFAULT_NAME, DEFAULT_REGION, DOMAIN, REGIONS
+
 _LOGGER = logging.getLogger(__name__)
 
 UDP_PORT = 987
diff --git a/homeassistant/components/ps4/media_player.py b/homeassistant/components/ps4/media_player.py
index e2b8e97f4..60b656a46 100644
--- a/homeassistant/components/ps4/media_player.py
+++ b/homeassistant/components/ps4/media_player.py
@@ -9,20 +9,18 @@ import socket
 
 import voluptuous as vol
 
-import homeassistant.helpers.config_validation as cv
 from homeassistant.components.media_player import (
-    MediaPlayerDevice, ENTITY_IMAGE_URL)
+    ENTITY_IMAGE_URL, MediaPlayerDevice)
 from homeassistant.components.media_player.const import (
-    MEDIA_TYPE_MUSIC, SUPPORT_SELECT_SOURCE,
-    SUPPORT_STOP, SUPPORT_TURN_OFF, SUPPORT_TURN_ON,
-)
-from homeassistant.components.ps4.const import DOMAIN as PS4_DOMAIN
+    MEDIA_TYPE_MUSIC, SUPPORT_SELECT_SOURCE, SUPPORT_STOP, SUPPORT_TURN_OFF,
+    SUPPORT_TURN_ON)
 from homeassistant.const import (
-    ATTR_ENTITY_ID, ATTR_COMMAND, CONF_HOST, CONF_NAME, CONF_REGION,
-    CONF_TOKEN, STATE_IDLE, STATE_OFF, STATE_PLAYING,
-)
+    ATTR_COMMAND, ATTR_ENTITY_ID, CONF_HOST, CONF_NAME, CONF_REGION,
+    CONF_TOKEN, STATE_IDLE, STATE_OFF, STATE_PLAYING)
+import homeassistant.helpers.config_validation as cv
 from homeassistant.util.json import load_json, save_json
 
+from .const import DOMAIN as PS4_DOMAIN
 
 DEPENDENCIES = ['ps4']
 
diff --git a/homeassistant/components/qwikswitch/binary_sensor.py b/homeassistant/components/qwikswitch/binary_sensor.py
index 2fe14773d..17021f7a9 100644
--- a/homeassistant/components/qwikswitch/binary_sensor.py
+++ b/homeassistant/components/qwikswitch/binary_sensor.py
@@ -7,9 +7,10 @@ https://home-assistant.io/components/binary_sensor.qwikswitch/
 import logging
 
 from homeassistant.components.binary_sensor import BinarySensorDevice
-from homeassistant.components.qwikswitch import QSEntity, DOMAIN as QWIKSWITCH
 from homeassistant.core import callback
 
+from . import DOMAIN as QWIKSWITCH, QSEntity
+
 DEPENDENCIES = [QWIKSWITCH]
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/qwikswitch/light.py b/homeassistant/components/qwikswitch/light.py
index 413358d9c..46a0a8848 100644
--- a/homeassistant/components/qwikswitch/light.py
+++ b/homeassistant/components/qwikswitch/light.py
@@ -4,10 +4,10 @@ Support for Qwikswitch Relays and Dimmers.
 For more details about this platform, please refer to the documentation at
 https://home-assistant.io/components/light.qwikswitch/
 """
-from homeassistant.components.qwikswitch import (
-    QSToggleEntity, DOMAIN as QWIKSWITCH)
 from homeassistant.components.light import SUPPORT_BRIGHTNESS, Light
 
+from . import DOMAIN as QWIKSWITCH, QSToggleEntity
+
 DEPENDENCIES = [QWIKSWITCH]
 
 
diff --git a/homeassistant/components/qwikswitch/sensor.py b/homeassistant/components/qwikswitch/sensor.py
index c8d33de4b..07d0247e4 100644
--- a/homeassistant/components/qwikswitch/sensor.py
+++ b/homeassistant/components/qwikswitch/sensor.py
@@ -6,9 +6,10 @@ https://home-assistant.io/components/sensor.qwikswitch/
 """
 import logging
 
-from homeassistant.components.qwikswitch import DOMAIN as QWIKSWITCH, QSEntity
 from homeassistant.core import callback
 
+from . import DOMAIN as QWIKSWITCH, QSEntity
+
 DEPENDENCIES = [QWIKSWITCH]
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/qwikswitch/switch.py b/homeassistant/components/qwikswitch/switch.py
index 3b8e6d74d..ec544df8c 100644
--- a/homeassistant/components/qwikswitch/switch.py
+++ b/homeassistant/components/qwikswitch/switch.py
@@ -4,10 +4,10 @@ Support for Qwikswitch relays.
 For more details about this platform, please refer to the documentation at
 https://home-assistant.io/components/switch.qwikswitch/
 """
-from homeassistant.components.qwikswitch import (
-    QSToggleEntity, DOMAIN as QWIKSWITCH)
 from homeassistant.components.switch import SwitchDevice
 
+from . import DOMAIN as QWIKSWITCH, QSToggleEntity
+
 DEPENDENCIES = [QWIKSWITCH]
 
 
diff --git a/homeassistant/components/rachio/binary_sensor.py b/homeassistant/components/rachio/binary_sensor.py
index 36a32c79c..9cf57ea32 100644
--- a/homeassistant/components/rachio/binary_sensor.py
+++ b/homeassistant/components/rachio/binary_sensor.py
@@ -8,17 +8,13 @@ from abc import abstractmethod
 import logging
 
 from homeassistant.components.binary_sensor import BinarySensorDevice
-from homeassistant.components.rachio import (DOMAIN as DOMAIN_RACHIO,
-                                             KEY_DEVICE_ID,
-                                             KEY_STATUS,
-                                             KEY_SUBTYPE,
-                                             SIGNAL_RACHIO_CONTROLLER_UPDATE,
-                                             STATUS_OFFLINE,
-                                             STATUS_ONLINE,
-                                             SUBTYPE_OFFLINE,
-                                             SUBTYPE_ONLINE,)
 from homeassistant.helpers.dispatcher import dispatcher_connect
 
+from . import (
+    DOMAIN as DOMAIN_RACHIO, KEY_DEVICE_ID, KEY_STATUS, KEY_SUBTYPE,
+    SIGNAL_RACHIO_CONTROLLER_UPDATE, STATUS_OFFLINE, STATUS_ONLINE,
+    SUBTYPE_OFFLINE, SUBTYPE_ONLINE)
+
 DEPENDENCIES = ['rachio']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/rachio/switch.py b/homeassistant/components/rachio/switch.py
index 4797aae9a..fe584441a 100644
--- a/homeassistant/components/rachio/switch.py
+++ b/homeassistant/components/rachio/switch.py
@@ -9,26 +9,15 @@ from datetime import timedelta
 import logging
 
 from homeassistant.components.switch import SwitchDevice
-from homeassistant.components.rachio import (CONF_MANUAL_RUN_MINS,
-                                             DOMAIN as DOMAIN_RACHIO,
-                                             KEY_DEVICE_ID,
-                                             KEY_ENABLED,
-                                             KEY_ID,
-                                             KEY_NAME,
-                                             KEY_ON,
-                                             KEY_SUBTYPE,
-                                             KEY_SUMMARY,
-                                             KEY_ZONE_ID,
-                                             KEY_ZONE_NUMBER,
-                                             SIGNAL_RACHIO_CONTROLLER_UPDATE,
-                                             SIGNAL_RACHIO_ZONE_UPDATE,
-                                             SUBTYPE_ZONE_STARTED,
-                                             SUBTYPE_ZONE_STOPPED,
-                                             SUBTYPE_ZONE_COMPLETED,
-                                             SUBTYPE_SLEEP_MODE_ON,
-                                             SUBTYPE_SLEEP_MODE_OFF)
 from homeassistant.helpers.dispatcher import dispatcher_connect
 
+from . import (
+    CONF_MANUAL_RUN_MINS, DOMAIN as DOMAIN_RACHIO, KEY_DEVICE_ID, KEY_ENABLED,
+    KEY_ID, KEY_NAME, KEY_ON, KEY_SUBTYPE, KEY_SUMMARY, KEY_ZONE_ID,
+    KEY_ZONE_NUMBER, SIGNAL_RACHIO_CONTROLLER_UPDATE,
+    SIGNAL_RACHIO_ZONE_UPDATE, SUBTYPE_SLEEP_MODE_OFF, SUBTYPE_SLEEP_MODE_ON,
+    SUBTYPE_ZONE_COMPLETED, SUBTYPE_ZONE_STARTED, SUBTYPE_ZONE_STOPPED)
+
 DEPENDENCIES = ['rachio']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/rainbird/sensor.py b/homeassistant/components/rainbird/sensor.py
index 1af2b7710..3d0de04e5 100644
--- a/homeassistant/components/rainbird/sensor.py
+++ b/homeassistant/components/rainbird/sensor.py
@@ -8,12 +8,13 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.components.rainbird import DATA_RAINBIRD
-import homeassistant.helpers.config_validation as cv
-from homeassistant.const import CONF_MONITORED_CONDITIONS
 from homeassistant.components.sensor import PLATFORM_SCHEMA
+from homeassistant.const import CONF_MONITORED_CONDITIONS
+import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
+from . import DATA_RAINBIRD
+
 DEPENDENCIES = ['rainbird']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/rainbird/switch.py b/homeassistant/components/rainbird/switch.py
index 86f25102f..2031769b3 100644
--- a/homeassistant/components/rainbird/switch.py
+++ b/homeassistant/components/rainbird/switch.py
@@ -9,13 +9,14 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.components.rainbird import DATA_RAINBIRD
-from homeassistant.components.switch import (SwitchDevice, PLATFORM_SCHEMA)
-from homeassistant.const import (CONF_SWITCHES, CONF_ZONE,
-                                 CONF_FRIENDLY_NAME, CONF_TRIGGER_TIME,
-                                 CONF_SCAN_INTERVAL)
+from homeassistant.components.switch import PLATFORM_SCHEMA, SwitchDevice
+from homeassistant.const import (
+    CONF_FRIENDLY_NAME, CONF_SCAN_INTERVAL, CONF_SWITCHES, CONF_TRIGGER_TIME,
+    CONF_ZONE)
 from homeassistant.helpers import config_validation as cv
 
+from . import DATA_RAINBIRD
+
 DEPENDENCIES = ['rainbird']
 
 DOMAIN = 'rainbird'
diff --git a/homeassistant/components/raincloud/binary_sensor.py b/homeassistant/components/raincloud/binary_sensor.py
index 810c7d201..cb66fc3c6 100644
--- a/homeassistant/components/raincloud/binary_sensor.py
+++ b/homeassistant/components/raincloud/binary_sensor.py
@@ -8,12 +8,12 @@ import logging
 
 import voluptuous as vol
 
-import homeassistant.helpers.config_validation as cv
-from homeassistant.components.raincloud import (
-    BINARY_SENSORS, DATA_RAINCLOUD, ICON_MAP, RainCloudEntity)
 from homeassistant.components.binary_sensor import (
-    BinarySensorDevice, PLATFORM_SCHEMA)
+    PLATFORM_SCHEMA, BinarySensorDevice)
 from homeassistant.const import CONF_MONITORED_CONDITIONS
+import homeassistant.helpers.config_validation as cv
+
+from . import BINARY_SENSORS, DATA_RAINCLOUD, ICON_MAP, RainCloudEntity
 
 DEPENDENCIES = ['raincloud']
 
diff --git a/homeassistant/components/raincloud/sensor.py b/homeassistant/components/raincloud/sensor.py
index 15a346880..8bcccf061 100644
--- a/homeassistant/components/raincloud/sensor.py
+++ b/homeassistant/components/raincloud/sensor.py
@@ -8,13 +8,13 @@ import logging
 
 import voluptuous as vol
 
-import homeassistant.helpers.config_validation as cv
-from homeassistant.components.raincloud import (
-    DATA_RAINCLOUD, ICON_MAP, RainCloudEntity, SENSORS)
 from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import CONF_MONITORED_CONDITIONS
+import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.icon import icon_for_battery_level
 
+from . import DATA_RAINCLOUD, ICON_MAP, SENSORS, RainCloudEntity
+
 DEPENDENCIES = ['raincloud']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/raincloud/switch.py b/homeassistant/components/raincloud/switch.py
index 1b76e8974..3901e1e0b 100644
--- a/homeassistant/components/raincloud/switch.py
+++ b/homeassistant/components/raincloud/switch.py
@@ -3,13 +3,13 @@ import logging
 
 import voluptuous as vol
 
+from homeassistant.components.switch import PLATFORM_SCHEMA, SwitchDevice
+from homeassistant.const import ATTR_ATTRIBUTION, CONF_MONITORED_CONDITIONS
 import homeassistant.helpers.config_validation as cv
-from homeassistant.components.raincloud import (
-    ALLOWED_WATERING_TIME, ATTRIBUTION, CONF_WATERING_TIME,
-    DATA_RAINCLOUD, DEFAULT_WATERING_TIME, RainCloudEntity, SWITCHES)
-from homeassistant.components.switch import SwitchDevice, PLATFORM_SCHEMA
-from homeassistant.const import (
-    CONF_MONITORED_CONDITIONS, ATTR_ATTRIBUTION)
+
+from . import (
+    ALLOWED_WATERING_TIME, ATTRIBUTION, CONF_WATERING_TIME, DATA_RAINCLOUD,
+    DEFAULT_WATERING_TIME, SWITCHES, RainCloudEntity)
 
 DEPENDENCIES = ['raincloud']
 
diff --git a/homeassistant/components/rainmachine/binary_sensor.py b/homeassistant/components/rainmachine/binary_sensor.py
index efae93303..929dbcf31 100644
--- a/homeassistant/components/rainmachine/binary_sensor.py
+++ b/homeassistant/components/rainmachine/binary_sensor.py
@@ -7,13 +7,14 @@ https://home-assistant.io/components/binary_sensor.rainmachine/
 import logging
 
 from homeassistant.components.binary_sensor import BinarySensorDevice
-from homeassistant.components.rainmachine import (
+from homeassistant.core import callback
+from homeassistant.helpers.dispatcher import async_dispatcher_connect
+
+from . import (
     BINARY_SENSORS, DATA_CLIENT, DOMAIN as RAINMACHINE_DOMAIN,
     SENSOR_UPDATE_TOPIC, TYPE_FREEZE, TYPE_FREEZE_PROTECTION, TYPE_HOT_DAYS,
     TYPE_HOURLY, TYPE_MONTH, TYPE_RAINDELAY, TYPE_RAINSENSOR, TYPE_WEEKDAY,
     RainMachineEntity)
-from homeassistant.core import callback
-from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
 DEPENDENCIES = ['rainmachine']
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/rainmachine/const.py b/homeassistant/components/rainmachine/const.py
index e0e79e8c1..4d08a871f 100644
--- a/homeassistant/components/rainmachine/const.py
+++ b/homeassistant/components/rainmachine/const.py
@@ -1,8 +1,8 @@
 """Define constants for the SimpliSafe component."""
-import logging
 from datetime import timedelta
+import logging
 
-LOGGER = logging.getLogger('homeassistant.components.rainmachine')
+LOGGER = logging.getLogger('.')
 
 DOMAIN = 'rainmachine'
 
diff --git a/homeassistant/components/rainmachine/sensor.py b/homeassistant/components/rainmachine/sensor.py
index 86a97bc29..908daa2c8 100644
--- a/homeassistant/components/rainmachine/sensor.py
+++ b/homeassistant/components/rainmachine/sensor.py
@@ -6,12 +6,13 @@ https://home-assistant.io/components/sensor.rainmachine/
 """
 import logging
 
-from homeassistant.components.rainmachine import (
-    DATA_CLIENT, DOMAIN as RAINMACHINE_DOMAIN, SENSOR_UPDATE_TOPIC, SENSORS,
-    RainMachineEntity)
 from homeassistant.core import callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
+from . import (
+    DATA_CLIENT, DOMAIN as RAINMACHINE_DOMAIN, SENSOR_UPDATE_TOPIC, SENSORS,
+    RainMachineEntity)
+
 DEPENDENCIES = ['rainmachine']
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/rainmachine/switch.py b/homeassistant/components/rainmachine/switch.py
index e3a1ddab9..6b658c0fc 100644
--- a/homeassistant/components/rainmachine/switch.py
+++ b/homeassistant/components/rainmachine/switch.py
@@ -4,18 +4,19 @@ This component provides support for RainMachine programs and zones.
 For more details about this component, please refer to the documentation at
 https://home-assistant.io/components/switch.rainmachine/
 """
-import logging
 from datetime import datetime
+import logging
 
-from homeassistant.components.rainmachine import (
-    DATA_CLIENT, DOMAIN as RAINMACHINE_DOMAIN, PROGRAM_UPDATE_TOPIC,
-    ZONE_UPDATE_TOPIC, RainMachineEntity)
-from homeassistant.const import ATTR_ID
 from homeassistant.components.switch import SwitchDevice
+from homeassistant.const import ATTR_ID
 from homeassistant.core import callback
 from homeassistant.helpers.dispatcher import (
     async_dispatcher_connect, async_dispatcher_send)
 
+from . import (
+    DATA_CLIENT, DOMAIN as RAINMACHINE_DOMAIN, PROGRAM_UPDATE_TOPIC,
+    ZONE_UPDATE_TOPIC, RainMachineEntity)
+
 DEPENDENCIES = ['rainmachine']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/raspihats/binary_sensor.py b/homeassistant/components/raspihats/binary_sensor.py
index b0ebc2e35..29fa474f7 100644
--- a/homeassistant/components/raspihats/binary_sensor.py
+++ b/homeassistant/components/raspihats/binary_sensor.py
@@ -5,13 +5,14 @@ import voluptuous as vol
 
 from homeassistant.components.binary_sensor import (
     PLATFORM_SCHEMA, BinarySensorDevice)
-from homeassistant.components.raspihats import (
-    CONF_BOARD, CONF_CHANNELS, CONF_I2C_HATS, CONF_INDEX, CONF_INVERT_LOGIC,
-    I2C_HAT_NAMES, I2C_HATS_MANAGER, I2CHatsException)
 from homeassistant.const import (
     CONF_ADDRESS, CONF_DEVICE_CLASS, CONF_NAME, DEVICE_DEFAULT_NAME)
 import homeassistant.helpers.config_validation as cv
 
+from . import (
+    CONF_BOARD, CONF_CHANNELS, CONF_I2C_HATS, CONF_INDEX, CONF_INVERT_LOGIC,
+    I2C_HAT_NAMES, I2C_HATS_MANAGER, I2CHatsException)
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['raspihats']
diff --git a/homeassistant/components/raspihats/switch.py b/homeassistant/components/raspihats/switch.py
index 26fcda3c8..93538682a 100644
--- a/homeassistant/components/raspihats/switch.py
+++ b/homeassistant/components/raspihats/switch.py
@@ -3,14 +3,15 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.components.raspihats import (
-    CONF_BOARD, CONF_CHANNELS, CONF_I2C_HATS, CONF_INDEX, CONF_INITIAL_STATE,
-    CONF_INVERT_LOGIC, I2C_HAT_NAMES, I2C_HATS_MANAGER, I2CHatsException)
 from homeassistant.components.switch import PLATFORM_SCHEMA
 from homeassistant.const import CONF_ADDRESS, CONF_NAME, DEVICE_DEFAULT_NAME
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import ToggleEntity
 
+from . import (
+    CONF_BOARD, CONF_CHANNELS, CONF_I2C_HATS, CONF_INDEX, CONF_INITIAL_STATE,
+    CONF_INVERT_LOGIC, I2C_HAT_NAMES, I2C_HATS_MANAGER, I2CHatsException)
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['raspihats']
diff --git a/homeassistant/components/rest/binary_sensor.py b/homeassistant/components/rest/binary_sensor.py
index 1599d5bce..1a9415929 100644
--- a/homeassistant/components/rest/binary_sensor.py
+++ b/homeassistant/components/rest/binary_sensor.py
@@ -6,19 +6,20 @@ https://home-assistant.io/components/binary_sensor.rest/
 """
 import logging
 
-import voluptuous as vol
 from requests.auth import HTTPBasicAuth, HTTPDigestAuth
+import voluptuous as vol
 
 from homeassistant.components.binary_sensor import (
-    BinarySensorDevice, DEVICE_CLASSES_SCHEMA, PLATFORM_SCHEMA)
-from homeassistant.components.rest.sensor import RestData
+    DEVICE_CLASSES_SCHEMA, PLATFORM_SCHEMA, BinarySensorDevice)
 from homeassistant.const import (
-    CONF_PAYLOAD, CONF_NAME, CONF_VALUE_TEMPLATE, CONF_METHOD, CONF_RESOURCE,
-    CONF_VERIFY_SSL, CONF_USERNAME, CONF_PASSWORD, CONF_TIMEOUT,
-    CONF_HEADERS, CONF_AUTHENTICATION, HTTP_BASIC_AUTHENTICATION,
-    HTTP_DIGEST_AUTHENTICATION, CONF_DEVICE_CLASS)
-import homeassistant.helpers.config_validation as cv
+    CONF_AUTHENTICATION, CONF_DEVICE_CLASS, CONF_HEADERS, CONF_METHOD,
+    CONF_NAME, CONF_PASSWORD, CONF_PAYLOAD, CONF_RESOURCE, CONF_TIMEOUT,
+    CONF_USERNAME, CONF_VALUE_TEMPLATE, CONF_VERIFY_SSL,
+    HTTP_BASIC_AUTHENTICATION, HTTP_DIGEST_AUTHENTICATION)
 from homeassistant.exceptions import PlatformNotReady
+import homeassistant.helpers.config_validation as cv
+
+from .sensor import RestData
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/rflink/binary_sensor.py b/homeassistant/components/rflink/binary_sensor.py
index 73b912d62..5318642a5 100644
--- a/homeassistant/components/rflink/binary_sensor.py
+++ b/homeassistant/components/rflink/binary_sensor.py
@@ -10,13 +10,12 @@ import voluptuous as vol
 
 from homeassistant.components.binary_sensor import (
     DEVICE_CLASSES_SCHEMA, PLATFORM_SCHEMA, BinarySensorDevice)
-from homeassistant.components.rflink import (
-    CONF_ALIASES, CONF_DEVICES, RflinkDevice)
-from homeassistant.const import (
-    CONF_FORCE_UPDATE, CONF_NAME, CONF_DEVICE_CLASS)
+from homeassistant.const import CONF_DEVICE_CLASS, CONF_FORCE_UPDATE, CONF_NAME
 import homeassistant.helpers.config_validation as cv
 import homeassistant.helpers.event as evt
 
+from . import CONF_ALIASES, CONF_DEVICES, RflinkDevice
+
 CONF_OFF_DELAY = 'off_delay'
 DEFAULT_FORCE_UPDATE = False
 
diff --git a/homeassistant/components/rflink/cover.py b/homeassistant/components/rflink/cover.py
index cdc7cac3a..f91ef1cc6 100644
--- a/homeassistant/components/rflink/cover.py
+++ b/homeassistant/components/rflink/cover.py
@@ -8,15 +8,15 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.components.rflink import (
+from homeassistant.components.cover import PLATFORM_SCHEMA, CoverDevice
+from homeassistant.const import CONF_NAME, STATE_OPEN
+import homeassistant.helpers.config_validation as cv
+from homeassistant.helpers.restore_state import RestoreEntity
+
+from . import (
     CONF_ALIASES, CONF_DEVICE_DEFAULTS, CONF_DEVICES, CONF_FIRE_EVENT,
     CONF_GROUP, CONF_GROUP_ALIASES, CONF_NOGROUP_ALIASES,
     CONF_SIGNAL_REPETITIONS, DEVICE_DEFAULTS_SCHEMA, RflinkCommand)
-from homeassistant.components.cover import (
-    CoverDevice, PLATFORM_SCHEMA)
-import homeassistant.helpers.config_validation as cv
-from homeassistant.helpers.restore_state import RestoreEntity
-from homeassistant.const import CONF_NAME, STATE_OPEN
 
 DEPENDENCIES = ['rflink']
 
diff --git a/homeassistant/components/rflink/light.py b/homeassistant/components/rflink/light.py
index 726433b4f..cdb34328b 100644
--- a/homeassistant/components/rflink/light.py
+++ b/homeassistant/components/rflink/light.py
@@ -10,15 +10,15 @@ import voluptuous as vol
 
 from homeassistant.components.light import (
     ATTR_BRIGHTNESS, PLATFORM_SCHEMA, SUPPORT_BRIGHTNESS, Light)
-from homeassistant.components.rflink import (
+from homeassistant.const import CONF_NAME, CONF_TYPE
+import homeassistant.helpers.config_validation as cv
+
+from . import (
     CONF_ALIASES, CONF_ALIASSES, CONF_AUTOMATIC_ADD, CONF_DEVICE_DEFAULTS,
     CONF_DEVICES, CONF_FIRE_EVENT, CONF_GROUP, CONF_GROUP_ALIASES,
     CONF_GROUP_ALIASSES, CONF_NOGROUP_ALIASES, CONF_NOGROUP_ALIASSES,
     CONF_SIGNAL_REPETITIONS, DATA_DEVICE_REGISTER, DEVICE_DEFAULTS_SCHEMA,
-    EVENT_KEY_COMMAND, EVENT_KEY_ID, SwitchableRflinkDevice,
-    remove_deprecated)
-import homeassistant.helpers.config_validation as cv
-from homeassistant.const import (CONF_NAME, CONF_TYPE)
+    EVENT_KEY_COMMAND, EVENT_KEY_ID, SwitchableRflinkDevice, remove_deprecated)
 
 DEPENDENCIES = ['rflink']
 
diff --git a/homeassistant/components/rflink/sensor.py b/homeassistant/components/rflink/sensor.py
index f3ec776fd..e46cc09d0 100644
--- a/homeassistant/components/rflink/sensor.py
+++ b/homeassistant/components/rflink/sensor.py
@@ -8,17 +8,17 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.components.rflink import (
-    CONF_ALIASES, CONF_ALIASSES, CONF_AUTOMATIC_ADD, CONF_DEVICES,
-    DATA_DEVICE_REGISTER, DATA_ENTITY_LOOKUP, EVENT_KEY_ID,
-    EVENT_KEY_SENSOR, EVENT_KEY_UNIT, RflinkDevice, remove_deprecated,
-    SIGNAL_AVAILABILITY, SIGNAL_HANDLE_EVENT, TMP_ENTITY)
-from homeassistant.components.sensor import (
-    PLATFORM_SCHEMA)
-import homeassistant.helpers.config_validation as cv
+from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import (
     ATTR_UNIT_OF_MEASUREMENT, CONF_NAME, CONF_UNIT_OF_MEASUREMENT)
-from homeassistant.helpers.dispatcher import (async_dispatcher_connect)
+import homeassistant.helpers.config_validation as cv
+from homeassistant.helpers.dispatcher import async_dispatcher_connect
+
+from . import (
+    CONF_ALIASES, CONF_ALIASSES, CONF_AUTOMATIC_ADD, CONF_DEVICES,
+    DATA_DEVICE_REGISTER, DATA_ENTITY_LOOKUP, EVENT_KEY_ID, EVENT_KEY_SENSOR,
+    EVENT_KEY_UNIT, SIGNAL_AVAILABILITY, SIGNAL_HANDLE_EVENT, TMP_ENTITY,
+    RflinkDevice, remove_deprecated)
 
 DEPENDENCIES = ['rflink']
 
diff --git a/homeassistant/components/rflink/switch.py b/homeassistant/components/rflink/switch.py
index 25e4e367f..a1470bf11 100644
--- a/homeassistant/components/rflink/switch.py
+++ b/homeassistant/components/rflink/switch.py
@@ -8,15 +8,15 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.components.rflink import (
+from homeassistant.components.switch import PLATFORM_SCHEMA, SwitchDevice
+from homeassistant.const import CONF_NAME
+import homeassistant.helpers.config_validation as cv
+
+from . import (
     CONF_ALIASES, CONF_ALIASSES, CONF_DEVICE_DEFAULTS, CONF_DEVICES,
     CONF_FIRE_EVENT, CONF_GROUP, CONF_GROUP_ALIASES, CONF_GROUP_ALIASSES,
     CONF_NOGROUP_ALIASES, CONF_NOGROUP_ALIASSES, CONF_SIGNAL_REPETITIONS,
     DEVICE_DEFAULTS_SCHEMA, SwitchableRflinkDevice, remove_deprecated)
-from homeassistant.components.switch import (
-    PLATFORM_SCHEMA, SwitchDevice)
-import homeassistant.helpers.config_validation as cv
-from homeassistant.const import CONF_NAME
 
 DEPENDENCIES = ['rflink']
 
diff --git a/homeassistant/components/rfxtrx/binary_sensor.py b/homeassistant/components/rfxtrx/binary_sensor.py
index 9a49bd02b..d548897fb 100644
--- a/homeassistant/components/rfxtrx/binary_sensor.py
+++ b/homeassistant/components/rfxtrx/binary_sensor.py
@@ -6,15 +6,14 @@ import voluptuous as vol
 from homeassistant.components import rfxtrx
 from homeassistant.components.binary_sensor import (
     DEVICE_CLASSES_SCHEMA, PLATFORM_SCHEMA, BinarySensorDevice)
-from homeassistant.components.rfxtrx import (
-    ATTR_NAME, CONF_AUTOMATIC_ADD, CONF_DATA_BITS, CONF_DEVICES,
-    CONF_FIRE_EVENT, CONF_OFF_DELAY)
 from homeassistant.const import (
     CONF_COMMAND_OFF, CONF_COMMAND_ON, CONF_DEVICE_CLASS, CONF_NAME)
-from homeassistant.helpers import config_validation as cv
-from homeassistant.helpers import event as evt
-from homeassistant.util import dt as dt_util
-from homeassistant.util import slugify
+from homeassistant.helpers import config_validation as cv, event as evt
+from homeassistant.util import dt as dt_util, slugify
+
+from . import (
+    ATTR_NAME, CONF_AUTOMATIC_ADD, CONF_DATA_BITS, CONF_DEVICES,
+    CONF_FIRE_EVENT, CONF_OFF_DELAY)
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/rfxtrx/cover.py b/homeassistant/components/rfxtrx/cover.py
index 5a6579236..7ac0e2aa4 100644
--- a/homeassistant/components/rfxtrx/cover.py
+++ b/homeassistant/components/rfxtrx/cover.py
@@ -2,13 +2,14 @@
 import voluptuous as vol
 
 from homeassistant.components import rfxtrx
-from homeassistant.components.cover import CoverDevice, PLATFORM_SCHEMA
+from homeassistant.components.cover import PLATFORM_SCHEMA, CoverDevice
 from homeassistant.const import CONF_NAME
-from homeassistant.components.rfxtrx import (
-    CONF_AUTOMATIC_ADD, CONF_FIRE_EVENT, DEFAULT_SIGNAL_REPETITIONS,
-    CONF_SIGNAL_REPETITIONS, CONF_DEVICES)
 from homeassistant.helpers import config_validation as cv
 
+from . import (
+    CONF_AUTOMATIC_ADD, CONF_DEVICES, CONF_FIRE_EVENT, CONF_SIGNAL_REPETITIONS,
+    DEFAULT_SIGNAL_REPETITIONS)
+
 DEPENDENCIES = ['rfxtrx']
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/rfxtrx/light.py b/homeassistant/components/rfxtrx/light.py
index d0b75c2f9..3320a6721 100644
--- a/homeassistant/components/rfxtrx/light.py
+++ b/homeassistant/components/rfxtrx/light.py
@@ -5,13 +5,14 @@ import voluptuous as vol
 
 from homeassistant.components import rfxtrx
 from homeassistant.components.light import (
-    ATTR_BRIGHTNESS, SUPPORT_BRIGHTNESS, Light, PLATFORM_SCHEMA)
+    ATTR_BRIGHTNESS, PLATFORM_SCHEMA, SUPPORT_BRIGHTNESS, Light)
 from homeassistant.const import CONF_NAME
-from homeassistant.components.rfxtrx import (
-    CONF_AUTOMATIC_ADD, CONF_FIRE_EVENT, DEFAULT_SIGNAL_REPETITIONS,
-    CONF_SIGNAL_REPETITIONS, CONF_DEVICES)
 from homeassistant.helpers import config_validation as cv
 
+from . import (
+    CONF_AUTOMATIC_ADD, CONF_DEVICES, CONF_FIRE_EVENT, CONF_SIGNAL_REPETITIONS,
+    DEFAULT_SIGNAL_REPETITIONS)
+
 DEPENDENCIES = ['rfxtrx']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/rfxtrx/sensor.py b/homeassistant/components/rfxtrx/sensor.py
index 74c646355..cc54320cb 100644
--- a/homeassistant/components/rfxtrx/sensor.py
+++ b/homeassistant/components/rfxtrx/sensor.py
@@ -4,15 +4,16 @@ import logging
 import voluptuous as vol
 
 from homeassistant.components import rfxtrx
-from homeassistant.components.rfxtrx import (
-    ATTR_DATA_TYPE, ATTR_FIRE_EVENT, CONF_AUTOMATIC_ADD, CONF_DATA_TYPE,
-    CONF_DEVICES, CONF_FIRE_EVENT, DATA_TYPES)
 from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import ATTR_ENTITY_ID, ATTR_NAME, CONF_NAME
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import slugify
 
+from . import (
+    ATTR_DATA_TYPE, ATTR_FIRE_EVENT, CONF_AUTOMATIC_ADD, CONF_DATA_TYPE,
+    CONF_DEVICES, CONF_FIRE_EVENT, DATA_TYPES)
+
 DEPENDENCIES = ['rfxtrx']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/rfxtrx/switch.py b/homeassistant/components/rfxtrx/switch.py
index 141cf2c2c..908c07ea7 100644
--- a/homeassistant/components/rfxtrx/switch.py
+++ b/homeassistant/components/rfxtrx/switch.py
@@ -4,12 +4,13 @@ import logging
 import voluptuous as vol
 
 from homeassistant.components import rfxtrx
-from homeassistant.components.switch import SwitchDevice, PLATFORM_SCHEMA
-from homeassistant.components.rfxtrx import (
-    CONF_AUTOMATIC_ADD, CONF_FIRE_EVENT, DEFAULT_SIGNAL_REPETITIONS,
-    CONF_SIGNAL_REPETITIONS, CONF_DEVICES)
-from homeassistant.helpers import config_validation as cv
+from homeassistant.components.switch import PLATFORM_SCHEMA, SwitchDevice
 from homeassistant.const import CONF_NAME
+from homeassistant.helpers import config_validation as cv
+
+from . import (
+    CONF_AUTOMATIC_ADD, CONF_DEVICES, CONF_FIRE_EVENT, CONF_SIGNAL_REPETITIONS,
+    DEFAULT_SIGNAL_REPETITIONS)
 
 DEPENDENCIES = ['rfxtrx']
 
diff --git a/homeassistant/components/ring/binary_sensor.py b/homeassistant/components/ring/binary_sensor.py
index 79fc61a62..bcc365a2e 100644
--- a/homeassistant/components/ring/binary_sensor.py
+++ b/homeassistant/components/ring/binary_sensor.py
@@ -4,20 +4,18 @@ This component provides HA sensor support for Ring Door Bell/Chimes.
 For more details about this platform, please refer to the documentation at
 https://home-assistant.io/components/binary_sensor.ring/
 """
-import logging
 from datetime import timedelta
+import logging
 
 import voluptuous as vol
-import homeassistant.helpers.config_validation as cv
-
-from homeassistant.components.ring import (
-    ATTRIBUTION, DEFAULT_ENTITY_NAMESPACE, DATA_RING)
-
-from homeassistant.const import (
-    ATTR_ATTRIBUTION, CONF_ENTITY_NAMESPACE, CONF_MONITORED_CONDITIONS)
 
 from homeassistant.components.binary_sensor import (
-    BinarySensorDevice, PLATFORM_SCHEMA)
+    PLATFORM_SCHEMA, BinarySensorDevice)
+from homeassistant.const import (
+    ATTR_ATTRIBUTION, CONF_ENTITY_NAMESPACE, CONF_MONITORED_CONDITIONS)
+import homeassistant.helpers.config_validation as cv
+
+from . import ATTRIBUTION, DATA_RING, DEFAULT_ENTITY_NAMESPACE
 
 DEPENDENCIES = ['ring']
 
diff --git a/homeassistant/components/ring/camera.py b/homeassistant/components/ring/camera.py
index ce9ceb7b7..efcdf8599 100644
--- a/homeassistant/components/ring/camera.py
+++ b/homeassistant/components/ring/camera.py
@@ -5,21 +5,20 @@ For more details about this platform, please refer to the documentation at
 https://home-assistant.io/components/camera.ring/
 """
 import asyncio
-import logging
-
 from datetime import timedelta
+import logging
 
 import voluptuous as vol
 
-from homeassistant.helpers import config_validation as cv
-from homeassistant.components.ring import (
-    DATA_RING, ATTRIBUTION, NOTIFICATION_ID)
-from homeassistant.components.camera import Camera, PLATFORM_SCHEMA
+from homeassistant.components.camera import PLATFORM_SCHEMA, Camera
 from homeassistant.components.ffmpeg import DATA_FFMPEG
 from homeassistant.const import ATTR_ATTRIBUTION, CONF_SCAN_INTERVAL
+from homeassistant.helpers import config_validation as cv
 from homeassistant.helpers.aiohttp_client import async_aiohttp_proxy_stream
 from homeassistant.util import dt as dt_util
 
+from . import ATTRIBUTION, DATA_RING, NOTIFICATION_ID
+
 CONF_FFMPEG_ARGUMENTS = 'ffmpeg_arguments'
 
 DEPENDENCIES = ['ring', 'ffmpeg']
diff --git a/homeassistant/components/ring/sensor.py b/homeassistant/components/ring/sensor.py
index d58e0cf8b..5e323d89a 100644
--- a/homeassistant/components/ring/sensor.py
+++ b/homeassistant/components/ring/sensor.py
@@ -9,16 +9,15 @@ import logging
 
 import voluptuous as vol
 
-import homeassistant.helpers.config_validation as cv
-from homeassistant.components.ring import (
-    ATTRIBUTION, DEFAULT_ENTITY_NAMESPACE, DATA_RING)
 from homeassistant.components.sensor import PLATFORM_SCHEMA
 from homeassistant.const import (
-    CONF_ENTITY_NAMESPACE, CONF_MONITORED_CONDITIONS,
-    ATTR_ATTRIBUTION)
+    ATTR_ATTRIBUTION, CONF_ENTITY_NAMESPACE, CONF_MONITORED_CONDITIONS)
+import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.icon import icon_for_battery_level
 
+from . import ATTRIBUTION, DATA_RING, DEFAULT_ENTITY_NAMESPACE
+
 DEPENDENCIES = ['ring']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/sabnzbd/sensor.py b/homeassistant/components/sabnzbd/sensor.py
index ca8fc64ee..4968725a4 100644
--- a/homeassistant/components/sabnzbd/sensor.py
+++ b/homeassistant/components/sabnzbd/sensor.py
@@ -1,11 +1,11 @@
 """Support for monitoring an SABnzbd NZB client."""
 import logging
 
-from homeassistant.components.sabnzbd import DATA_SABNZBD, \
-    SIGNAL_SABNZBD_UPDATED, SENSOR_TYPES
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.helpers.entity import Entity
 
+from . import DATA_SABNZBD, SENSOR_TYPES, SIGNAL_SABNZBD_UPDATED
+
 DEPENDENCIES = ['sabnzbd']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/scene/__init__.py b/homeassistant/components/scene/__init__.py
index 35eedabd5..86392c090 100644
--- a/homeassistant/components/scene/__init__.py
+++ b/homeassistant/components/scene/__init__.py
@@ -5,8 +5,7 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.const import (
-    ATTR_ENTITY_ID, CONF_PLATFORM, SERVICE_TURN_ON)
+from homeassistant.const import ATTR_ENTITY_ID, CONF_PLATFORM, SERVICE_TURN_ON
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 from homeassistant.helpers.entity_component import EntityComponent
@@ -28,9 +27,8 @@ def _hass_domain_validator(config):
 def _platform_validator(config):
     """Validate it is a valid  platform."""
     try:
-        platform = importlib.import_module(
-            'homeassistant.components.scene.{}'.format(
-                config[CONF_PLATFORM]))
+        platform = importlib.import_module('.{}'.format(config[CONF_PLATFORM]),
+                                           __name__)
     except ImportError:
         try:
             platform = importlib.import_module(
diff --git a/homeassistant/components/scene/homeassistant.py b/homeassistant/components/scene/homeassistant.py
index 96e24138b..86af6c346 100644
--- a/homeassistant/components/scene/homeassistant.py
+++ b/homeassistant/components/scene/homeassistant.py
@@ -3,13 +3,14 @@ from collections import namedtuple
 
 import voluptuous as vol
 
-import homeassistant.helpers.config_validation as cv
-from homeassistant.components.scene import Scene, STATES
 from homeassistant.const import (
     ATTR_ENTITY_ID, ATTR_STATE, CONF_ENTITIES, CONF_NAME, CONF_PLATFORM,
     STATE_OFF, STATE_ON)
 from homeassistant.core import State
-from homeassistant.helpers.state import async_reproduce_state, HASS_DOMAIN
+import homeassistant.helpers.config_validation as cv
+from homeassistant.helpers.state import HASS_DOMAIN, async_reproduce_state
+
+from . import STATES, Scene
 
 PLATFORM_SCHEMA = vol.Schema({
     vol.Required(CONF_PLATFORM): HASS_DOMAIN,
diff --git a/homeassistant/components/sense/binary_sensor.py b/homeassistant/components/sense/binary_sensor.py
index 0341f65e9..da9bae3cc 100644
--- a/homeassistant/components/sense/binary_sensor.py
+++ b/homeassistant/components/sense/binary_sensor.py
@@ -2,7 +2,8 @@
 import logging
 
 from homeassistant.components.binary_sensor import BinarySensorDevice
-from homeassistant.components.sense import SENSE_DATA
+
+from . import SENSE_DATA
 
 DEPENDENCIES = ['sense']
 
diff --git a/homeassistant/components/sense/sensor.py b/homeassistant/components/sense/sensor.py
index ffde584c0..0224884e1 100644
--- a/homeassistant/components/sense/sensor.py
+++ b/homeassistant/components/sense/sensor.py
@@ -2,11 +2,12 @@
 from datetime import timedelta
 import logging
 
-from homeassistant.components.sense import SENSE_DATA
-from homeassistant.const import POWER_WATT, ENERGY_KILO_WATT_HOUR
+from homeassistant.const import ENERGY_KILO_WATT_HOUR, POWER_WATT
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import Throttle
 
+from . import SENSE_DATA
+
 _LOGGER = logging.getLogger(__name__)
 
 ACTIVE_NAME = 'Energy'
diff --git a/homeassistant/components/simplisafe/alarm_control_panel.py b/homeassistant/components/simplisafe/alarm_control_panel.py
index 9fdeea73d..693117786 100644
--- a/homeassistant/components/simplisafe/alarm_control_panel.py
+++ b/homeassistant/components/simplisafe/alarm_control_panel.py
@@ -3,14 +3,14 @@ import logging
 import re
 
 import homeassistant.components.alarm_control_panel as alarm
-from homeassistant.components.simplisafe.const import (
-    DATA_CLIENT, DOMAIN, TOPIC_UPDATE)
 from homeassistant.const import (
     CONF_CODE, STATE_ALARM_ARMED_AWAY, STATE_ALARM_ARMED_HOME,
     STATE_ALARM_DISARMED)
 from homeassistant.core import callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
+from .const import DATA_CLIENT, DOMAIN, TOPIC_UPDATE
+
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_ALARM_ACTIVE = 'alarm_active'
diff --git a/homeassistant/components/sisyphus/light.py b/homeassistant/components/sisyphus/light.py
index c9d209596..182e5e781 100644
--- a/homeassistant/components/sisyphus/light.py
+++ b/homeassistant/components/sisyphus/light.py
@@ -1,9 +1,10 @@
 """Support for the light on the Sisyphus Kinetic Art Table."""
 import logging
 
-from homeassistant.const import CONF_NAME
 from homeassistant.components.light import SUPPORT_BRIGHTNESS, Light
-from homeassistant.components.sisyphus import DATA_SISYPHUS
+from homeassistant.const import CONF_NAME
+
+from . import DATA_SISYPHUS
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/sisyphus/media_player.py b/homeassistant/components/sisyphus/media_player.py
index 463ac2b6c..11546c3fd 100644
--- a/homeassistant/components/sisyphus/media_player.py
+++ b/homeassistant/components/sisyphus/media_player.py
@@ -6,10 +6,11 @@ from homeassistant.components.media_player.const import (
     SUPPORT_NEXT_TRACK, SUPPORT_PAUSE, SUPPORT_PLAY, SUPPORT_PREVIOUS_TRACK,
     SUPPORT_SHUFFLE_SET, SUPPORT_TURN_OFF, SUPPORT_TURN_ON,
     SUPPORT_VOLUME_MUTE, SUPPORT_VOLUME_SET)
-from homeassistant.components.sisyphus import DATA_SISYPHUS
 from homeassistant.const import (
     CONF_HOST, CONF_NAME, STATE_IDLE, STATE_OFF, STATE_PAUSED, STATE_PLAYING)
 
+from . import DATA_SISYPHUS
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['sisyphus']
diff --git a/homeassistant/components/skybell/binary_sensor.py b/homeassistant/components/skybell/binary_sensor.py
index 169e1b51a..8c2b83552 100644
--- a/homeassistant/components/skybell/binary_sensor.py
+++ b/homeassistant/components/skybell/binary_sensor.py
@@ -5,13 +5,13 @@ import logging
 import voluptuous as vol
 
 from homeassistant.components.binary_sensor import (
-    BinarySensorDevice, PLATFORM_SCHEMA)
-from homeassistant.components.skybell import (
-    DEFAULT_ENTITY_NAMESPACE, DOMAIN as SKYBELL_DOMAIN, SkybellDevice)
+    PLATFORM_SCHEMA, BinarySensorDevice)
 from homeassistant.const import (
     CONF_ENTITY_NAMESPACE, CONF_MONITORED_CONDITIONS)
 import homeassistant.helpers.config_validation as cv
 
+from . import DEFAULT_ENTITY_NAMESPACE, DOMAIN as SKYBELL_DOMAIN, SkybellDevice
+
 DEPENDENCIES = ['skybell']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/skybell/camera.py b/homeassistant/components/skybell/camera.py
index c22489aa6..04b03f84b 100644
--- a/homeassistant/components/skybell/camera.py
+++ b/homeassistant/components/skybell/camera.py
@@ -5,13 +5,11 @@ import logging
 import requests
 import voluptuous as vol
 
-from homeassistant.components.camera import PLATFORM_SCHEMA
+from homeassistant.components.camera import PLATFORM_SCHEMA, Camera
 from homeassistant.const import CONF_MONITORED_CONDITIONS
 import homeassistant.helpers.config_validation as cv
 
-from homeassistant.components.camera import Camera
-from homeassistant.components.skybell import (
-    DOMAIN as SKYBELL_DOMAIN, SkybellDevice)
+from . import DOMAIN as SKYBELL_DOMAIN, SkybellDevice
 
 DEPENDENCIES = ['skybell']
 
diff --git a/homeassistant/components/skybell/light.py b/homeassistant/components/skybell/light.py
index 02be279f6..d413f9df4 100644
--- a/homeassistant/components/skybell/light.py
+++ b/homeassistant/components/skybell/light.py
@@ -1,14 +1,12 @@
 """Light/LED support for the Skybell HD Doorbell."""
 import logging
 
-
 from homeassistant.components.light import (
-    ATTR_BRIGHTNESS, ATTR_HS_COLOR,
-    SUPPORT_BRIGHTNESS, SUPPORT_COLOR, Light)
-from homeassistant.components.skybell import (
-    DOMAIN as SKYBELL_DOMAIN, SkybellDevice)
+    ATTR_BRIGHTNESS, ATTR_HS_COLOR, SUPPORT_BRIGHTNESS, SUPPORT_COLOR, Light)
 import homeassistant.util.color as color_util
 
+from . import DOMAIN as SKYBELL_DOMAIN, SkybellDevice
+
 DEPENDENCIES = ['skybell']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/skybell/sensor.py b/homeassistant/components/skybell/sensor.py
index 89841ae74..067e850df 100644
--- a/homeassistant/components/skybell/sensor.py
+++ b/homeassistant/components/skybell/sensor.py
@@ -5,12 +5,12 @@ import logging
 import voluptuous as vol
 
 from homeassistant.components.sensor import PLATFORM_SCHEMA
-from homeassistant.components.skybell import (
-    DEFAULT_ENTITY_NAMESPACE, DOMAIN as SKYBELL_DOMAIN, SkybellDevice)
 from homeassistant.const import (
     CONF_ENTITY_NAMESPACE, CONF_MONITORED_CONDITIONS)
 import homeassistant.helpers.config_validation as cv
 
+from . import DEFAULT_ENTITY_NAMESPACE, DOMAIN as SKYBELL_DOMAIN, SkybellDevice
+
 DEPENDENCIES = ['skybell']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/skybell/switch.py b/homeassistant/components/skybell/switch.py
index 32f1d7f93..674bbf22a 100644
--- a/homeassistant/components/skybell/switch.py
+++ b/homeassistant/components/skybell/switch.py
@@ -3,14 +3,13 @@ import logging
 
 import voluptuous as vol
 
-
-from homeassistant.components.skybell import (
-    DEFAULT_ENTITY_NAMESPACE, DOMAIN as SKYBELL_DOMAIN, SkybellDevice)
 from homeassistant.components.switch import PLATFORM_SCHEMA, SwitchDevice
 from homeassistant.const import (
     CONF_ENTITY_NAMESPACE, CONF_MONITORED_CONDITIONS)
 import homeassistant.helpers.config_validation as cv
 
+from . import DEFAULT_ENTITY_NAMESPACE, DOMAIN as SKYBELL_DOMAIN, SkybellDevice
+
 DEPENDENCIES = ['skybell']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/smappee/sensor.py b/homeassistant/components/smappee/sensor.py
index 09584851c..98527c769 100644
--- a/homeassistant/components/smappee/sensor.py
+++ b/homeassistant/components/smappee/sensor.py
@@ -1,10 +1,11 @@
 """Support for monitoring a Smappee energy sensor."""
-import logging
 from datetime import timedelta
+import logging
 
-from homeassistant.components.smappee import DATA_SMAPPEE
+from homeassistant.const import ENERGY_KILO_WATT_HOUR, POWER_WATT
 from homeassistant.helpers.entity import Entity
-from homeassistant.const import POWER_WATT, ENERGY_KILO_WATT_HOUR
+
+from . import DATA_SMAPPEE
 
 DEPENDENCIES = ['smappee']
 
diff --git a/homeassistant/components/smappee/switch.py b/homeassistant/components/smappee/switch.py
index 3b9bee081..963caf457 100644
--- a/homeassistant/components/smappee/switch.py
+++ b/homeassistant/components/smappee/switch.py
@@ -1,8 +1,9 @@
 """Support for interacting with Smappee Comport Plugs."""
 import logging
 
-from homeassistant.components.smappee import DATA_SMAPPEE
-from homeassistant.components.switch import (SwitchDevice)
+from homeassistant.components.switch import SwitchDevice
+
+from . import DATA_SMAPPEE
 
 DEPENDENCIES = ['smappee']
 
diff --git a/homeassistant/components/smhi/const.py b/homeassistant/components/smhi/const.py
index 9689857e5..4cd1d6f7b 100644
--- a/homeassistant/components/smhi/const.py
+++ b/homeassistant/components/smhi/const.py
@@ -13,4 +13,4 @@ ENTITY_ID_SENSOR_FORMAT = WEATHER_DOMAIN + ".smhi_{}"
 ENTITY_ID_SENSOR_FORMAT_HOME = ENTITY_ID_SENSOR_FORMAT.format(
     HOME_LOCATION_NAME)
 
-LOGGER = logging.getLogger('homeassistant.components.smhi')
+LOGGER = logging.getLogger('.')
diff --git a/homeassistant/components/smhi/weather.py b/homeassistant/components/smhi/weather.py
index 6136d093a..fc3399f75 100644
--- a/homeassistant/components/smhi/weather.py
+++ b/homeassistant/components/smhi/weather.py
@@ -7,8 +7,6 @@ from typing import Dict, List
 import aiohttp
 import async_timeout
 
-from homeassistant.components.smhi.const import (
-    ATTR_SMHI_CLOUDINESS, ENTITY_ID_SENSOR_FORMAT)
 from homeassistant.components.weather import (
     ATTR_FORECAST_CONDITION, ATTR_FORECAST_PRECIPITATION, ATTR_FORECAST_TEMP,
     ATTR_FORECAST_TEMP_LOW, ATTR_FORECAST_TIME, WeatherEntity)
@@ -19,6 +17,8 @@ from homeassistant.core import HomeAssistant
 from homeassistant.helpers import aiohttp_client
 from homeassistant.util import Throttle, slugify
 
+from .const import ATTR_SMHI_CLOUDINESS, ENTITY_ID_SENSOR_FORMAT
+
 DEPENDENCIES = ['smhi']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/sonos/media_player.py b/homeassistant/components/sonos/media_player.py
index 684e25ba5..ba7854e4f 100644
--- a/homeassistant/components/sonos/media_player.py
+++ b/homeassistant/components/sonos/media_player.py
@@ -1,9 +1,9 @@
 """Support to interface with Sonos players."""
+import asyncio
 import datetime
 import functools as ft
 import logging
 import socket
-import asyncio
 import urllib
 
 import async_timeout
@@ -11,20 +11,20 @@ import requests
 import voluptuous as vol
 
 from homeassistant.components.media_player import (
-    MediaPlayerDevice, PLATFORM_SCHEMA)
+    PLATFORM_SCHEMA, MediaPlayerDevice)
 from homeassistant.components.media_player.const import (
-    ATTR_MEDIA_ENQUEUE, DOMAIN, MEDIA_TYPE_MUSIC,
-    SUPPORT_CLEAR_PLAYLIST, SUPPORT_NEXT_TRACK, SUPPORT_PAUSE, SUPPORT_PLAY,
-    SUPPORT_PLAY_MEDIA, SUPPORT_PREVIOUS_TRACK, SUPPORT_SEEK,
-    SUPPORT_SELECT_SOURCE, SUPPORT_SHUFFLE_SET, SUPPORT_STOP,
-    SUPPORT_VOLUME_MUTE, SUPPORT_VOLUME_SET)
-from homeassistant.components.sonos import DOMAIN as SONOS_DOMAIN
+    ATTR_MEDIA_ENQUEUE, DOMAIN, MEDIA_TYPE_MUSIC, SUPPORT_CLEAR_PLAYLIST,
+    SUPPORT_NEXT_TRACK, SUPPORT_PAUSE, SUPPORT_PLAY, SUPPORT_PLAY_MEDIA,
+    SUPPORT_PREVIOUS_TRACK, SUPPORT_SEEK, SUPPORT_SELECT_SOURCE,
+    SUPPORT_SHUFFLE_SET, SUPPORT_STOP, SUPPORT_VOLUME_MUTE, SUPPORT_VOLUME_SET)
 from homeassistant.const import (
     ATTR_ENTITY_ID, ATTR_TIME, CONF_HOSTS, STATE_IDLE, STATE_OFF, STATE_PAUSED,
     STATE_PLAYING)
 import homeassistant.helpers.config_validation as cv
 from homeassistant.util.dt import utcnow
 
+from . import DOMAIN as SONOS_DOMAIN
+
 DEPENDENCIES = ('sonos',)
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/spc/alarm_control_panel.py b/homeassistant/components/spc/alarm_control_panel.py
index 7adbb6167..623a4b0db 100644
--- a/homeassistant/components/spc/alarm_control_panel.py
+++ b/homeassistant/components/spc/alarm_control_panel.py
@@ -7,12 +7,13 @@ https://home-assistant.io/components/alarm_control_panel.spc/
 import logging
 
 import homeassistant.components.alarm_control_panel as alarm
-from homeassistant.helpers.dispatcher import async_dispatcher_connect
-from homeassistant.core import callback
-from homeassistant.components.spc import (DATA_API, SIGNAL_UPDATE_ALARM)
 from homeassistant.const import (
     STATE_ALARM_ARMED_AWAY, STATE_ALARM_ARMED_HOME, STATE_ALARM_ARMED_NIGHT,
     STATE_ALARM_DISARMED, STATE_ALARM_TRIGGERED)
+from homeassistant.core import callback
+from homeassistant.helpers.dispatcher import async_dispatcher_connect
+
+from . import DATA_API, SIGNAL_UPDATE_ALARM
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/spc/binary_sensor.py b/homeassistant/components/spc/binary_sensor.py
index baa252668..6a0712d62 100644
--- a/homeassistant/components/spc/binary_sensor.py
+++ b/homeassistant/components/spc/binary_sensor.py
@@ -7,9 +7,10 @@ https://home-assistant.io/components/binary_sensor.spc/
 import logging
 
 from homeassistant.components.binary_sensor import BinarySensorDevice
-from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.core import callback
-from homeassistant.components.spc import (DATA_API, SIGNAL_UPDATE_SENSOR)
+from homeassistant.helpers.dispatcher import async_dispatcher_connect
+
+from . import DATA_API, SIGNAL_UPDATE_SENSOR
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/speedtestdotnet/__init__.py b/homeassistant/components/speedtestdotnet/__init__.py
index 0c8908a30..f140f881e 100644
--- a/homeassistant/components/speedtestdotnet/__init__.py
+++ b/homeassistant/components/speedtestdotnet/__init__.py
@@ -5,8 +5,6 @@ import logging
 import voluptuous as vol
 
 from homeassistant.components.sensor import DOMAIN as SENSOR_DOMAIN
-from homeassistant.components.speedtestdotnet.const import (
-    DATA_UPDATED, DOMAIN, SENSOR_TYPES)
 from homeassistant.const import (
     CONF_MONITORED_CONDITIONS, CONF_SCAN_INTERVAL, CONF_UPDATE_INTERVAL,
     CONF_UPDATE_INTERVAL_INVALIDATION_VERSION)
@@ -15,6 +13,8 @@ from homeassistant.helpers.discovery import async_load_platform
 from homeassistant.helpers.dispatcher import dispatcher_send
 from homeassistant.helpers.event import async_track_time_interval
 
+from .const import DATA_UPDATED, DOMAIN, SENSOR_TYPES
+
 REQUIREMENTS = ['speedtest-cli==2.1.1']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/speedtestdotnet/sensor.py b/homeassistant/components/speedtestdotnet/sensor.py
index 11bc9a37c..fb92bb76a 100644
--- a/homeassistant/components/speedtestdotnet/sensor.py
+++ b/homeassistant/components/speedtestdotnet/sensor.py
@@ -1,13 +1,14 @@
 """Support for Speedtest.net internet speed testing sensor."""
 import logging
 
-from homeassistant.components.speedtestdotnet.const import (
-    DATA_UPDATED, DOMAIN as SPEEDTESTDOTNET_DOMAIN, SENSOR_TYPES)
 from homeassistant.const import ATTR_ATTRIBUTION
 from homeassistant.core import callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.helpers.restore_state import RestoreEntity
 
+from .const import (
+    DATA_UPDATED, DOMAIN as SPEEDTESTDOTNET_DOMAIN, SENSOR_TYPES)
+
 DEPENDENCIES = ['speedtestdotnet']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/spider/climate.py b/homeassistant/components/spider/climate.py
index b3380ec8f..3b612441a 100644
--- a/homeassistant/components/spider/climate.py
+++ b/homeassistant/components/spider/climate.py
@@ -4,12 +4,12 @@ import logging
 
 from homeassistant.components.climate import ClimateDevice
 from homeassistant.components.climate.const import (
-    STATE_COOL, STATE_HEAT, STATE_IDLE,
-    SUPPORT_OPERATION_MODE, SUPPORT_TARGET_TEMPERATURE,
-    SUPPORT_FAN_MODE)
-from homeassistant.components.spider import DOMAIN as SPIDER_DOMAIN
+    STATE_COOL, STATE_HEAT, STATE_IDLE, SUPPORT_FAN_MODE,
+    SUPPORT_OPERATION_MODE, SUPPORT_TARGET_TEMPERATURE)
 from homeassistant.const import ATTR_TEMPERATURE, TEMP_CELSIUS
 
+from . import DOMAIN as SPIDER_DOMAIN
+
 DEPENDENCIES = ['spider']
 
 FAN_LIST = [
diff --git a/homeassistant/components/spider/switch.py b/homeassistant/components/spider/switch.py
index 227e47485..e43762be4 100644
--- a/homeassistant/components/spider/switch.py
+++ b/homeassistant/components/spider/switch.py
@@ -1,9 +1,10 @@
 """Support for Spider switches."""
 import logging
 
-from homeassistant.components.spider import DOMAIN as SPIDER_DOMAIN
 from homeassistant.components.switch import SwitchDevice
 
+from . import DOMAIN as SPIDER_DOMAIN
+
 DEPENDENCIES = ['spider']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/tado/climate.py b/homeassistant/components/tado/climate.py
index d5f152bbd..71ebeadae 100644
--- a/homeassistant/components/tado/climate.py
+++ b/homeassistant/components/tado/climate.py
@@ -1,13 +1,14 @@
 """Support for Tado to create a climate device for each zone."""
 import logging
 
-from homeassistant.const import (PRECISION_TENTHS, TEMP_CELSIUS)
 from homeassistant.components.climate import ClimateDevice
 from homeassistant.components.climate.const import (
-    SUPPORT_TARGET_TEMPERATURE, SUPPORT_OPERATION_MODE)
+    SUPPORT_OPERATION_MODE, SUPPORT_TARGET_TEMPERATURE)
+from homeassistant.const import (
+    ATTR_TEMPERATURE, PRECISION_TENTHS, TEMP_CELSIUS)
 from homeassistant.util.temperature import convert as convert_temperature
-from homeassistant.const import ATTR_TEMPERATURE
-from homeassistant.components.tado import DATA_TADO
+
+from . import DATA_TADO
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/tado/sensor.py b/homeassistant/components/tado/sensor.py
index a1eb918ac..8fa858977 100644
--- a/homeassistant/components/tado/sensor.py
+++ b/homeassistant/components/tado/sensor.py
@@ -1,10 +1,11 @@
 """Support for Tado sensors for each zone."""
 import logging
 
-from homeassistant.components.tado import DATA_TADO
 from homeassistant.const import ATTR_ID, ATTR_NAME, TEMP_CELSIUS
 from homeassistant.helpers.entity import Entity
 
+from . import DATA_TADO
+
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_DATA_ID = 'data_id'
diff --git a/homeassistant/components/tahoma/binary_sensor.py b/homeassistant/components/tahoma/binary_sensor.py
index 69855f7cb..948c6f90a 100644
--- a/homeassistant/components/tahoma/binary_sensor.py
+++ b/homeassistant/components/tahoma/binary_sensor.py
@@ -1,12 +1,11 @@
 """Support for Tahoma binary sensors."""
-import logging
 from datetime import timedelta
+import logging
 
-from homeassistant.components.binary_sensor import (
-    BinarySensorDevice)
-from homeassistant.components.tahoma import (
-    DOMAIN as TAHOMA_DOMAIN, TahomaDevice)
-from homeassistant.const import (STATE_OFF, STATE_ON, ATTR_BATTERY_LEVEL)
+from homeassistant.components.binary_sensor import BinarySensorDevice
+from homeassistant.const import ATTR_BATTERY_LEVEL, STATE_OFF, STATE_ON
+
+from . import DOMAIN as TAHOMA_DOMAIN, TahomaDevice
 
 DEPENDENCIES = ['tahoma']
 
diff --git a/homeassistant/components/tahoma/cover.py b/homeassistant/components/tahoma/cover.py
index 6dbf9a398..85e785f9c 100644
--- a/homeassistant/components/tahoma/cover.py
+++ b/homeassistant/components/tahoma/cover.py
@@ -2,10 +2,10 @@
 from datetime import timedelta
 import logging
 
+from homeassistant.components.cover import ATTR_POSITION, CoverDevice
 from homeassistant.util.dt import utcnow
-from homeassistant.components.cover import CoverDevice, ATTR_POSITION
-from homeassistant.components.tahoma import (
-    DOMAIN as TAHOMA_DOMAIN, TahomaDevice)
+
+from . import DOMAIN as TAHOMA_DOMAIN, TahomaDevice
 
 DEPENDENCIES = ['tahoma']
 
diff --git a/homeassistant/components/tahoma/scene.py b/homeassistant/components/tahoma/scene.py
index 643cc65aa..eedb95d1a 100644
--- a/homeassistant/components/tahoma/scene.py
+++ b/homeassistant/components/tahoma/scene.py
@@ -2,8 +2,8 @@
 import logging
 
 from homeassistant.components.scene import Scene
-from homeassistant.components.tahoma import (
-    DOMAIN as TAHOMA_DOMAIN)
+
+from . import DOMAIN as TAHOMA_DOMAIN
 
 DEPENDENCIES = ['tahoma']
 
diff --git a/homeassistant/components/tahoma/sensor.py b/homeassistant/components/tahoma/sensor.py
index 8a2ea976b..3c0391180 100644
--- a/homeassistant/components/tahoma/sensor.py
+++ b/homeassistant/components/tahoma/sensor.py
@@ -1,11 +1,11 @@
 """Support for Tahoma sensors."""
-import logging
 from datetime import timedelta
+import logging
 
-from homeassistant.helpers.entity import Entity
-from homeassistant.components.tahoma import (
-    DOMAIN as TAHOMA_DOMAIN, TahomaDevice)
 from homeassistant.const import ATTR_BATTERY_LEVEL
+from homeassistant.helpers.entity import Entity
+
+from . import DOMAIN as TAHOMA_DOMAIN, TahomaDevice
 
 DEPENDENCIES = ['tahoma']
 
diff --git a/homeassistant/components/tahoma/switch.py b/homeassistant/components/tahoma/switch.py
index 779bff9ce..71f00ed89 100644
--- a/homeassistant/components/tahoma/switch.py
+++ b/homeassistant/components/tahoma/switch.py
@@ -2,9 +2,9 @@
 import logging
 
 from homeassistant.components.switch import SwitchDevice
-from homeassistant.components.tahoma import (
-    DOMAIN as TAHOMA_DOMAIN, TahomaDevice)
-from homeassistant.const import (STATE_OFF, STATE_ON)
+from homeassistant.const import STATE_OFF, STATE_ON
+
+from . import DOMAIN as TAHOMA_DOMAIN, TahomaDevice
 
 DEPENDENCIES = ['tahoma']
 
diff --git a/homeassistant/components/tcp/binary_sensor.py b/homeassistant/components/tcp/binary_sensor.py
index 4a12febd8..80d77cd52 100644
--- a/homeassistant/components/tcp/binary_sensor.py
+++ b/homeassistant/components/tcp/binary_sensor.py
@@ -7,8 +7,8 @@ https://home-assistant.io/components/binary_sensor.tcp/
 import logging
 
 from homeassistant.components.binary_sensor import BinarySensorDevice
-from homeassistant.components.tcp.sensor import (
-    TcpSensor, CONF_VALUE_ON, PLATFORM_SCHEMA)
+
+from .sensor import CONF_VALUE_ON, PLATFORM_SCHEMA, TcpSensor
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/telegram_bot/broadcast.py b/homeassistant/components/telegram_bot/broadcast.py
index eb52ab496..a129ebf66 100644
--- a/homeassistant/components/telegram_bot/broadcast.py
+++ b/homeassistant/components/telegram_bot/broadcast.py
@@ -1,9 +1,7 @@
 """Support for Telegram bot to send messages only."""
 import logging
 
-from homeassistant.components.telegram_bot import (
-    initialize_bot,
-    PLATFORM_SCHEMA as TELEGRAM_PLATFORM_SCHEMA)
+from . import PLATFORM_SCHEMA as TELEGRAM_PLATFORM_SCHEMA, initialize_bot
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/telegram_bot/polling.py b/homeassistant/components/telegram_bot/polling.py
index 9936b6909..7d0039319 100644
--- a/homeassistant/components/telegram_bot/polling.py
+++ b/homeassistant/components/telegram_bot/polling.py
@@ -1,14 +1,14 @@
 """Support for Telegram bot using polling."""
 import logging
 
-from homeassistant.components.telegram_bot import (
-    initialize_bot,
-    CONF_ALLOWED_CHAT_IDS, BaseTelegramBotEntity,
-    PLATFORM_SCHEMA as TELEGRAM_PLATFORM_SCHEMA)
 from homeassistant.const import (
     EVENT_HOMEASSISTANT_START, EVENT_HOMEASSISTANT_STOP)
 from homeassistant.core import callback
 
+from . import (
+    CONF_ALLOWED_CHAT_IDS, PLATFORM_SCHEMA as TELEGRAM_PLATFORM_SCHEMA,
+    BaseTelegramBotEntity, initialize_bot)
+
 _LOGGER = logging.getLogger(__name__)
 
 PLATFORM_SCHEMA = TELEGRAM_PLATFORM_SCHEMA
diff --git a/homeassistant/components/telegram_bot/webhooks.py b/homeassistant/components/telegram_bot/webhooks.py
index 41a206944..424ece815 100644
--- a/homeassistant/components/telegram_bot/webhooks.py
+++ b/homeassistant/components/telegram_bot/webhooks.py
@@ -7,14 +7,14 @@ import voluptuous as vol
 
 from homeassistant.components.http import HomeAssistantView
 from homeassistant.components.http.const import KEY_REAL_IP
-from homeassistant.components.telegram_bot import (
-    CONF_ALLOWED_CHAT_IDS, BaseTelegramBotEntity, PLATFORM_SCHEMA,
-    initialize_bot)
 from homeassistant.const import (
-    EVENT_HOMEASSISTANT_STOP, HTTP_BAD_REQUEST,
-    HTTP_UNAUTHORIZED, CONF_URL)
+    CONF_URL, EVENT_HOMEASSISTANT_STOP, HTTP_BAD_REQUEST, HTTP_UNAUTHORIZED)
 import homeassistant.helpers.config_validation as cv
 
+from . import (
+    CONF_ALLOWED_CHAT_IDS, PLATFORM_SCHEMA, BaseTelegramBotEntity,
+    initialize_bot)
+
 DEPENDENCIES = ['http']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/tellduslive/binary_sensor.py b/homeassistant/components/tellduslive/binary_sensor.py
index 85faeca96..fc13f7583 100644
--- a/homeassistant/components/tellduslive/binary_sensor.py
+++ b/homeassistant/components/tellduslive/binary_sensor.py
@@ -3,9 +3,10 @@ import logging
 
 from homeassistant.components import binary_sensor, tellduslive
 from homeassistant.components.binary_sensor import BinarySensorDevice
-from homeassistant.components.tellduslive.entry import TelldusLiveEntity
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
+from .entry import TelldusLiveEntity
+
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/tellduslive/cover.py b/homeassistant/components/tellduslive/cover.py
index 1bd3158d1..6dac00ed7 100644
--- a/homeassistant/components/tellduslive/cover.py
+++ b/homeassistant/components/tellduslive/cover.py
@@ -3,9 +3,10 @@ import logging
 
 from homeassistant.components import cover, tellduslive
 from homeassistant.components.cover import CoverDevice
-from homeassistant.components.tellduslive.entry import TelldusLiveEntity
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
+from .entry import TelldusLiveEntity
+
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/tellduslive/light.py b/homeassistant/components/tellduslive/light.py
index 12baf8384..3847c66b6 100644
--- a/homeassistant/components/tellduslive/light.py
+++ b/homeassistant/components/tellduslive/light.py
@@ -4,9 +4,10 @@ import logging
 from homeassistant.components import light, tellduslive
 from homeassistant.components.light import (
     ATTR_BRIGHTNESS, SUPPORT_BRIGHTNESS, Light)
-from homeassistant.components.tellduslive.entry import TelldusLiveEntity
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
+from .entry import TelldusLiveEntity
+
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/tellduslive/sensor.py b/homeassistant/components/tellduslive/sensor.py
index 42c93aa52..156c11c95 100644
--- a/homeassistant/components/tellduslive/sensor.py
+++ b/homeassistant/components/tellduslive/sensor.py
@@ -2,12 +2,13 @@
 import logging
 
 from homeassistant.components import sensor, tellduslive
-from homeassistant.components.tellduslive.entry import TelldusLiveEntity
 from homeassistant.const import (
     DEVICE_CLASS_HUMIDITY, DEVICE_CLASS_ILLUMINANCE, DEVICE_CLASS_TEMPERATURE,
-    TEMP_CELSIUS, POWER_WATT)
+    POWER_WATT, TEMP_CELSIUS)
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 
+from .entry import TelldusLiveEntity
+
 _LOGGER = logging.getLogger(__name__)
 
 SENSOR_TYPE_TEMPERATURE = 'temp'
diff --git a/homeassistant/components/tellduslive/switch.py b/homeassistant/components/tellduslive/switch.py
index bb0164b10..55275b5b7 100644
--- a/homeassistant/components/tellduslive/switch.py
+++ b/homeassistant/components/tellduslive/switch.py
@@ -2,10 +2,11 @@
 import logging
 
 from homeassistant.components import switch, tellduslive
-from homeassistant.components.tellduslive.entry import TelldusLiveEntity
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.helpers.entity import ToggleEntity
 
+from .entry import TelldusLiveEntity
+
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/tellstick/cover.py b/homeassistant/components/tellstick/cover.py
index d0c9c0314..b90e34229 100644
--- a/homeassistant/components/tellstick/cover.py
+++ b/homeassistant/components/tellstick/cover.py
@@ -1,8 +1,9 @@
 """Support for Tellstick covers."""
 from homeassistant.components.cover import CoverDevice
-from homeassistant.components.tellstick import (
-    DEFAULT_SIGNAL_REPETITIONS, ATTR_DISCOVER_DEVICES, ATTR_DISCOVER_CONFIG,
-    DATA_TELLSTICK, TellstickDevice)
+
+from . import (
+    ATTR_DISCOVER_CONFIG, ATTR_DISCOVER_DEVICES, DATA_TELLSTICK,
+    DEFAULT_SIGNAL_REPETITIONS, TellstickDevice)
 
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
diff --git a/homeassistant/components/tellstick/light.py b/homeassistant/components/tellstick/light.py
index 5deee5e08..15c8b0c5e 100644
--- a/homeassistant/components/tellstick/light.py
+++ b/homeassistant/components/tellstick/light.py
@@ -1,10 +1,10 @@
 """Support for Tellstick lights."""
 from homeassistant.components.light import (
     ATTR_BRIGHTNESS, SUPPORT_BRIGHTNESS, Light)
-from homeassistant.components.tellstick import (
-    DEFAULT_SIGNAL_REPETITIONS, ATTR_DISCOVER_DEVICES, ATTR_DISCOVER_CONFIG,
-    DATA_TELLSTICK, TellstickDevice)
 
+from . import (
+    ATTR_DISCOVER_CONFIG, ATTR_DISCOVER_DEVICES, DATA_TELLSTICK,
+    DEFAULT_SIGNAL_REPETITIONS, TellstickDevice)
 
 SUPPORT_TELLSTICK = SUPPORT_BRIGHTNESS
 
diff --git a/homeassistant/components/tellstick/switch.py b/homeassistant/components/tellstick/switch.py
index 56d563e49..75c18bee8 100644
--- a/homeassistant/components/tellstick/switch.py
+++ b/homeassistant/components/tellstick/switch.py
@@ -1,9 +1,10 @@
 """Support for Tellstick switches."""
-from homeassistant.components.tellstick import (
-    DEFAULT_SIGNAL_REPETITIONS, ATTR_DISCOVER_DEVICES,
-    ATTR_DISCOVER_CONFIG, DATA_TELLSTICK, TellstickDevice)
 from homeassistant.helpers.entity import ToggleEntity
 
+from . import (
+    ATTR_DISCOVER_CONFIG, ATTR_DISCOVER_DEVICES, DATA_TELLSTICK,
+    DEFAULT_SIGNAL_REPETITIONS, TellstickDevice)
+
 
 def setup_platform(hass, config, add_entities, discovery_info=None):
     """Set up Tellstick switches."""
diff --git a/homeassistant/components/tesla/binary_sensor.py b/homeassistant/components/tesla/binary_sensor.py
index 2c037140f..a87239d24 100644
--- a/homeassistant/components/tesla/binary_sensor.py
+++ b/homeassistant/components/tesla/binary_sensor.py
@@ -2,8 +2,9 @@
 import logging
 
 from homeassistant.components.binary_sensor import (
-    BinarySensorDevice, ENTITY_ID_FORMAT)
-from homeassistant.components.tesla import DOMAIN as TESLA_DOMAIN, TeslaDevice
+    ENTITY_ID_FORMAT, BinarySensorDevice)
+
+from . import DOMAIN as TESLA_DOMAIN, TeslaDevice
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/tesla/climate.py b/homeassistant/components/tesla/climate.py
index 118e7204b..603ce1a4d 100644
--- a/homeassistant/components/tesla/climate.py
+++ b/homeassistant/components/tesla/climate.py
@@ -1,14 +1,14 @@
 """Support for Tesla HVAC system."""
 import logging
 
-from homeassistant.components.climate import ClimateDevice, ENTITY_ID_FORMAT
+from homeassistant.components.climate import ENTITY_ID_FORMAT, ClimateDevice
 from homeassistant.components.climate.const import (
     SUPPORT_OPERATION_MODE, SUPPORT_TARGET_TEMPERATURE)
-from homeassistant.components.tesla import DOMAIN as TESLA_DOMAIN
-from homeassistant.components.tesla import TeslaDevice
 from homeassistant.const import (
     ATTR_TEMPERATURE, STATE_OFF, STATE_ON, TEMP_CELSIUS, TEMP_FAHRENHEIT)
 
+from . import DOMAIN as TESLA_DOMAIN, TeslaDevice
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['tesla']
diff --git a/homeassistant/components/tesla/device_tracker.py b/homeassistant/components/tesla/device_tracker.py
index 0aeab5b1c..5a7693d83 100644
--- a/homeassistant/components/tesla/device_tracker.py
+++ b/homeassistant/components/tesla/device_tracker.py
@@ -1,10 +1,11 @@
 """Support for tracking Tesla cars."""
 import logging
 
-from homeassistant.components.tesla import DOMAIN as TESLA_DOMAIN
 from homeassistant.helpers.event import track_utc_time_change
 from homeassistant.util import slugify
 
+from . import DOMAIN as TESLA_DOMAIN
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['tesla']
diff --git a/homeassistant/components/tesla/lock.py b/homeassistant/components/tesla/lock.py
index 34d660ac8..ade394496 100644
--- a/homeassistant/components/tesla/lock.py
+++ b/homeassistant/components/tesla/lock.py
@@ -2,10 +2,10 @@
 import logging
 
 from homeassistant.components.lock import ENTITY_ID_FORMAT, LockDevice
-from homeassistant.components.tesla import DOMAIN as TESLA_DOMAIN
-from homeassistant.components.tesla import TeslaDevice
 from homeassistant.const import STATE_LOCKED, STATE_UNLOCKED
 
+from . import DOMAIN as TESLA_DOMAIN, TeslaDevice
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['tesla']
diff --git a/homeassistant/components/tesla/sensor.py b/homeassistant/components/tesla/sensor.py
index 1d4505ed9..99705d3f7 100644
--- a/homeassistant/components/tesla/sensor.py
+++ b/homeassistant/components/tesla/sensor.py
@@ -3,12 +3,12 @@ from datetime import timedelta
 import logging
 
 from homeassistant.components.sensor import ENTITY_ID_FORMAT
-from homeassistant.components.tesla import DOMAIN as TESLA_DOMAIN
-from homeassistant.components.tesla import TeslaDevice
 from homeassistant.const import (
-    TEMP_CELSIUS, TEMP_FAHRENHEIT, LENGTH_KILOMETERS, LENGTH_MILES)
+    LENGTH_KILOMETERS, LENGTH_MILES, TEMP_CELSIUS, TEMP_FAHRENHEIT)
 from homeassistant.helpers.entity import Entity
 
+from . import DOMAIN as TESLA_DOMAIN, TeslaDevice
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['tesla']
diff --git a/homeassistant/components/tesla/switch.py b/homeassistant/components/tesla/switch.py
index a1787e999..e00164ff1 100644
--- a/homeassistant/components/tesla/switch.py
+++ b/homeassistant/components/tesla/switch.py
@@ -2,10 +2,10 @@
 import logging
 
 from homeassistant.components.switch import ENTITY_ID_FORMAT, SwitchDevice
-from homeassistant.components.tesla import DOMAIN as TESLA_DOMAIN
-from homeassistant.components.tesla import TeslaDevice
 from homeassistant.const import STATE_OFF, STATE_ON
 
+from . import DOMAIN as TESLA_DOMAIN, TeslaDevice
+
 _LOGGER = logging.getLogger(__name__)
 DEPENDENCIES = ['tesla']
 
diff --git a/homeassistant/components/thethingsnetwork/sensor.py b/homeassistant/components/thethingsnetwork/sensor.py
index 05da90bf7..d59b42972 100644
--- a/homeassistant/components/thethingsnetwork/sensor.py
+++ b/homeassistant/components/thethingsnetwork/sensor.py
@@ -8,13 +8,13 @@ import async_timeout
 import voluptuous as vol
 
 from homeassistant.components.sensor import PLATFORM_SCHEMA
-from homeassistant.components.thethingsnetwork import (
-    DATA_TTN, TTN_APP_ID, TTN_ACCESS_KEY, TTN_DATA_STORAGE_URL)
 from homeassistant.const import CONTENT_TYPE_JSON
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
+from . import DATA_TTN, TTN_ACCESS_KEY, TTN_APP_ID, TTN_DATA_STORAGE_URL
+
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_DEVICE_ID = 'device_id'
diff --git a/homeassistant/components/tibber/notify.py b/homeassistant/components/tibber/notify.py
index 6ae22c342..604fadb87 100644
--- a/homeassistant/components/tibber/notify.py
+++ b/homeassistant/components/tibber/notify.py
@@ -4,7 +4,8 @@ import logging
 
 from homeassistant.components.notify import (
     ATTR_TITLE, ATTR_TITLE_DEFAULT, BaseNotificationService)
-from homeassistant.components.tibber import DOMAIN as TIBBER_DOMAIN
+
+from . import DOMAIN as TIBBER_DOMAIN
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/tibber/sensor.py b/homeassistant/components/tibber/sensor.py
index fb224a254..9f3e9cdcc 100644
--- a/homeassistant/components/tibber/sensor.py
+++ b/homeassistant/components/tibber/sensor.py
@@ -1,16 +1,15 @@
 """Support for Tibber sensors."""
 import asyncio
-
+from datetime import timedelta
 import logging
 
-from datetime import timedelta
 import aiohttp
 
-from homeassistant.components.tibber import DOMAIN as TIBBER_DOMAIN
 from homeassistant.exceptions import PlatformNotReady
 from homeassistant.helpers.entity import Entity
-from homeassistant.util import dt as dt_util
-from homeassistant.util import Throttle
+from homeassistant.util import Throttle, dt as dt_util
+
+from . import DOMAIN as TIBBER_DOMAIN
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/tplink/light.py b/homeassistant/components/tplink/light.py
index de1a943c3..0ba1dfaa3 100644
--- a/homeassistant/components/tplink/light.py
+++ b/homeassistant/components/tplink/light.py
@@ -8,15 +8,14 @@ import logging
 import time
 
 from homeassistant.components.light import (
-    Light, ATTR_BRIGHTNESS, ATTR_COLOR_TEMP, ATTR_HS_COLOR, SUPPORT_BRIGHTNESS,
-    SUPPORT_COLOR_TEMP, SUPPORT_COLOR)
-from homeassistant.util.color import \
-    color_temperature_mired_to_kelvin as mired_to_kelvin
-from homeassistant.util.color import (
-    color_temperature_kelvin_to_mired as kelvin_to_mired)
+    ATTR_BRIGHTNESS, ATTR_COLOR_TEMP, ATTR_HS_COLOR, SUPPORT_BRIGHTNESS,
+    SUPPORT_COLOR, SUPPORT_COLOR_TEMP, Light)
 import homeassistant.helpers.device_registry as dr
-from homeassistant.components.tplink import (DOMAIN as TPLINK_DOMAIN,
-                                             CONF_LIGHT)
+from homeassistant.util.color import (
+    color_temperature_kelvin_to_mired as kelvin_to_mired,
+    color_temperature_mired_to_kelvin as mired_to_kelvin)
+
+from . import CONF_LIGHT, DOMAIN as TPLINK_DOMAIN
 
 DEPENDENCIES = ['tplink']
 
diff --git a/homeassistant/components/tplink/switch.py b/homeassistant/components/tplink/switch.py
index 65b884169..a75945e99 100644
--- a/homeassistant/components/tplink/switch.py
+++ b/homeassistant/components/tplink/switch.py
@@ -8,12 +8,12 @@ import logging
 import time
 
 from homeassistant.components.switch import (
-    SwitchDevice, ATTR_CURRENT_POWER_W, ATTR_TODAY_ENERGY_KWH)
-from homeassistant.components.tplink import (DOMAIN as TPLINK_DOMAIN,
-                                             CONF_SWITCH)
+    ATTR_CURRENT_POWER_W, ATTR_TODAY_ENERGY_KWH, SwitchDevice)
 from homeassistant.const import ATTR_VOLTAGE
 import homeassistant.helpers.device_registry as dr
 
+from . import CONF_SWITCH, DOMAIN as TPLINK_DOMAIN
+
 DEPENDENCIES = ['tplink']
 
 PARALLEL_UPDATES = 0
diff --git a/homeassistant/components/tradfri/light.py b/homeassistant/components/tradfri/light.py
index e5e27ecbe..38ce428b5 100644
--- a/homeassistant/components/tradfri/light.py
+++ b/homeassistant/components/tradfri/light.py
@@ -1,19 +1,16 @@
 """Support for IKEA Tradfri lights."""
 import logging
 
-from homeassistant.core import callback
 from homeassistant.components.light import (
     ATTR_BRIGHTNESS, ATTR_COLOR_TEMP, ATTR_HS_COLOR, ATTR_TRANSITION,
-    SUPPORT_BRIGHTNESS, SUPPORT_TRANSITION, SUPPORT_COLOR_TEMP,
-    SUPPORT_COLOR, Light)
-from homeassistant.components.light import \
-    PLATFORM_SCHEMA as LIGHT_PLATFORM_SCHEMA
-from homeassistant.components.tradfri import (
-    KEY_GATEWAY, KEY_API, DOMAIN as TRADFRI_DOMAIN)
-from homeassistant.components.tradfri.const import (
-    CONF_IMPORT_GROUPS, CONF_GATEWAY_ID)
+    PLATFORM_SCHEMA as LIGHT_PLATFORM_SCHEMA, SUPPORT_BRIGHTNESS,
+    SUPPORT_COLOR, SUPPORT_COLOR_TEMP, SUPPORT_TRANSITION, Light)
+from homeassistant.core import callback
 import homeassistant.util.color as color_util
 
+from . import DOMAIN as TRADFRI_DOMAIN, KEY_API, KEY_GATEWAY
+from .const import CONF_GATEWAY_ID, CONF_IMPORT_GROUPS
+
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_DIMMER = 'dimmer'
diff --git a/homeassistant/components/tradfri/sensor.py b/homeassistant/components/tradfri/sensor.py
index 97c7dc962..acc84a935 100644
--- a/homeassistant/components/tradfri/sensor.py
+++ b/homeassistant/components/tradfri/sensor.py
@@ -1,12 +1,12 @@
 """Support for IKEA Tradfri sensors."""
+from datetime import timedelta
 import logging
 
-from datetime import timedelta
-
 from homeassistant.core import callback
-from homeassistant.components.tradfri import KEY_GATEWAY, KEY_API
 from homeassistant.helpers.entity import Entity
 
+from . import KEY_API, KEY_GATEWAY
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['tradfri']
diff --git a/homeassistant/components/tradfri/switch.py b/homeassistant/components/tradfri/switch.py
index 23e6cb20c..ef9a9537c 100644
--- a/homeassistant/components/tradfri/switch.py
+++ b/homeassistant/components/tradfri/switch.py
@@ -1,12 +1,11 @@
 """Support for IKEA Tradfri switches."""
 import logging
 
-from homeassistant.core import callback
 from homeassistant.components.switch import SwitchDevice
-from homeassistant.components.tradfri import (
-    KEY_GATEWAY, KEY_API, DOMAIN as TRADFRI_DOMAIN)
-from homeassistant.components.tradfri.const import (
-    CONF_GATEWAY_ID)
+from homeassistant.core import callback
+
+from . import DOMAIN as TRADFRI_DOMAIN, KEY_API, KEY_GATEWAY
+from .const import CONF_GATEWAY_ID
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/transmission/sensor.py b/homeassistant/components/transmission/sensor.py
index 061ed2c0c..dfd4c1950 100644
--- a/homeassistant/components/transmission/sensor.py
+++ b/homeassistant/components/transmission/sensor.py
@@ -1,15 +1,14 @@
 """Support for monitoring the Transmission BitTorrent client API."""
 from datetime import timedelta
-
 import logging
 
-from homeassistant.components.transmission import (
-    DATA_TRANSMISSION, SENSOR_TYPES, DATA_UPDATED)
 from homeassistant.const import STATE_IDLE
 from homeassistant.core import callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.helpers.entity import Entity
 
+from . import DATA_TRANSMISSION, DATA_UPDATED, SENSOR_TYPES
+
 DEPENDENCIES = ['transmission']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/transmission/switch.py b/homeassistant/components/transmission/switch.py
index 373397edd..854a2e727 100644
--- a/homeassistant/components/transmission/switch.py
+++ b/homeassistant/components/transmission/switch.py
@@ -1,14 +1,13 @@
 """Support for setting the Transmission BitTorrent client Turtle Mode."""
 import logging
 
-from homeassistant.components.transmission import (
-    DATA_TRANSMISSION, DATA_UPDATED)
-from homeassistant.const import (
-    STATE_OFF, STATE_ON)
+from homeassistant.const import STATE_OFF, STATE_ON
 from homeassistant.core import callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.helpers.entity import ToggleEntity
 
+from . import DATA_TRANSMISSION, DATA_UPDATED
+
 DEPENDENCIES = ['transmission']
 
 _LOGGING = logging.getLogger(__name__)
diff --git a/homeassistant/components/tts/amazon_polly.py b/homeassistant/components/tts/amazon_polly.py
index 0102a1fec..12383df11 100644
--- a/homeassistant/components/tts/amazon_polly.py
+++ b/homeassistant/components/tts/amazon_polly.py
@@ -8,9 +8,10 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.components.tts import Provider, PLATFORM_SCHEMA
 import homeassistant.helpers.config_validation as cv
 
+from . import PLATFORM_SCHEMA, Provider
+
 REQUIREMENTS = ['boto3==1.9.16']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/tts/baidu.py b/homeassistant/components/tts/baidu.py
index 609f38454..e7a1f368f 100644
--- a/homeassistant/components/tts/baidu.py
+++ b/homeassistant/components/tts/baidu.py
@@ -6,12 +6,14 @@ https://home-assistant.io/components/tts.baidu/
 """
 
 import logging
+
 import voluptuous as vol
 
-from homeassistant.components.tts import Provider, CONF_LANG, PLATFORM_SCHEMA
 from homeassistant.const import CONF_API_KEY
 import homeassistant.helpers.config_validation as cv
 
+from . import CONF_LANG, PLATFORM_SCHEMA, Provider
+
 REQUIREMENTS = ["baidu-aip==1.6.6"]
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/tts/demo.py b/homeassistant/components/tts/demo.py
index ba854fc2f..6784e7cea 100644
--- a/homeassistant/components/tts/demo.py
+++ b/homeassistant/components/tts/demo.py
@@ -8,7 +8,7 @@ import os
 
 import voluptuous as vol
 
-from homeassistant.components.tts import Provider, PLATFORM_SCHEMA, CONF_LANG
+from . import CONF_LANG, PLATFORM_SCHEMA, Provider
 
 SUPPORT_LANGUAGES = [
     'en', 'de'
diff --git a/homeassistant/components/tts/marytts.py b/homeassistant/components/tts/marytts.py
index 61f01a9b2..971d3fb57 100644
--- a/homeassistant/components/tts/marytts.py
+++ b/homeassistant/components/tts/marytts.py
@@ -13,10 +13,11 @@ import async_timeout
 import voluptuous as vol
 
 from homeassistant.const import CONF_HOST, CONF_PORT
-from homeassistant.components.tts import Provider, PLATFORM_SCHEMA, CONF_LANG
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 import homeassistant.helpers.config_validation as cv
 
+from . import CONF_LANG, PLATFORM_SCHEMA, Provider
+
 _LOGGER = logging.getLogger(__name__)
 
 SUPPORT_LANGUAGES = [
diff --git a/homeassistant/components/tts/microsoft.py b/homeassistant/components/tts/microsoft.py
index 3cce7c1a7..ab9fb576c 100644
--- a/homeassistant/components/tts/microsoft.py
+++ b/homeassistant/components/tts/microsoft.py
@@ -4,15 +4,16 @@ Support for the Microsoft Cognitive Services text-to-speech service.
 For more details about this component, please refer to the documentation at
 https://home-assistant.io/components/tts.microsoft/
 """
-import logging
 from http.client import HTTPException
+import logging
 
 import voluptuous as vol
 
-from homeassistant.components.tts import Provider, PLATFORM_SCHEMA, CONF_LANG
-from homeassistant.const import CONF_TYPE, CONF_API_KEY
+from homeassistant.const import CONF_API_KEY, CONF_TYPE
 import homeassistant.helpers.config_validation as cv
 
+from . import CONF_LANG, PLATFORM_SCHEMA, Provider
+
 CONF_GENDER = 'gender'
 CONF_OUTPUT = 'output'
 CONF_RATE = 'rate'
diff --git a/homeassistant/components/tts/picotts.py b/homeassistant/components/tts/picotts.py
index 59c698303..99d3b5e97 100644
--- a/homeassistant/components/tts/picotts.py
+++ b/homeassistant/components/tts/picotts.py
@@ -4,14 +4,15 @@ Support for the Pico TTS speech service.
 For more details about this component, please refer to the documentation at
 https://home-assistant.io/components/tts.picotts/
 """
+import logging
 import os
-import tempfile
 import shutil
 import subprocess
-import logging
+import tempfile
+
 import voluptuous as vol
 
-from homeassistant.components.tts import Provider, PLATFORM_SCHEMA, CONF_LANG
+from . import CONF_LANG, PLATFORM_SCHEMA, Provider
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/tts/voicerss.py b/homeassistant/components/tts/voicerss.py
index 22eba69e5..3676dff3b 100644
--- a/homeassistant/components/tts/voicerss.py
+++ b/homeassistant/components/tts/voicerss.py
@@ -12,10 +12,11 @@ import async_timeout
 import voluptuous as vol
 
 from homeassistant.const import CONF_API_KEY
-from homeassistant.components.tts import Provider, PLATFORM_SCHEMA, CONF_LANG
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 import homeassistant.helpers.config_validation as cv
 
+from . import CONF_LANG, PLATFORM_SCHEMA, Provider
+
 _LOGGER = logging.getLogger(__name__)
 
 VOICERSS_API_URL = "https://api.voicerss.org/"
diff --git a/homeassistant/components/tts/yandextts.py b/homeassistant/components/tts/yandextts.py
index 112e78413..aecba2925 100644
--- a/homeassistant/components/tts/yandextts.py
+++ b/homeassistant/components/tts/yandextts.py
@@ -12,10 +12,10 @@ import async_timeout
 import voluptuous as vol
 
 from homeassistant.const import CONF_API_KEY
-from homeassistant.components.tts import Provider, PLATFORM_SCHEMA, CONF_LANG
 from homeassistant.helpers.aiohttp_client import async_get_clientsession
 import homeassistant.helpers.config_validation as cv
 
+from . import CONF_LANG, PLATFORM_SCHEMA, Provider
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/tuya/climate.py b/homeassistant/components/tuya/climate.py
index 06714760a..b7a10dad8 100644
--- a/homeassistant/components/tuya/climate.py
+++ b/homeassistant/components/tuya/climate.py
@@ -1,15 +1,15 @@
 """Support for the Tuya climate devices."""
-from homeassistant.components.climate import ClimateDevice, ENTITY_ID_FORMAT
+from homeassistant.components.climate import ENTITY_ID_FORMAT, ClimateDevice
 from homeassistant.components.climate.const import (
-    STATE_AUTO, STATE_COOL, STATE_ECO,
-    STATE_FAN_ONLY, STATE_HEAT, SUPPORT_FAN_MODE, SUPPORT_ON_OFF,
-    SUPPORT_OPERATION_MODE, SUPPORT_TARGET_TEMPERATURE)
-from homeassistant.components.fan import SPEED_LOW, SPEED_MEDIUM, SPEED_HIGH
-from homeassistant.components.tuya import DATA_TUYA, TuyaDevice
-
+    STATE_AUTO, STATE_COOL, STATE_ECO, STATE_FAN_ONLY, STATE_HEAT,
+    SUPPORT_FAN_MODE, SUPPORT_ON_OFF, SUPPORT_OPERATION_MODE,
+    SUPPORT_TARGET_TEMPERATURE)
+from homeassistant.components.fan import SPEED_HIGH, SPEED_LOW, SPEED_MEDIUM
 from homeassistant.const import (
     ATTR_TEMPERATURE, PRECISION_WHOLE, TEMP_CELSIUS, TEMP_FAHRENHEIT)
 
+from . import DATA_TUYA, TuyaDevice
+
 DEPENDENCIES = ['tuya']
 DEVICE_TYPE = 'climate'
 
diff --git a/homeassistant/components/tuya/cover.py b/homeassistant/components/tuya/cover.py
index ac2309cbf..274f4d938 100644
--- a/homeassistant/components/tuya/cover.py
+++ b/homeassistant/components/tuya/cover.py
@@ -1,7 +1,8 @@
 """Support for Tuya covers."""
 from homeassistant.components.cover import (
-    CoverDevice, ENTITY_ID_FORMAT, SUPPORT_OPEN, SUPPORT_CLOSE, SUPPORT_STOP)
-from homeassistant.components.tuya import DATA_TUYA, TuyaDevice
+    ENTITY_ID_FORMAT, SUPPORT_CLOSE, SUPPORT_OPEN, SUPPORT_STOP, CoverDevice)
+
+from . import DATA_TUYA, TuyaDevice
 
 DEPENDENCIES = ['tuya']
 
diff --git a/homeassistant/components/tuya/fan.py b/homeassistant/components/tuya/fan.py
index b6e2cb695..259417869 100644
--- a/homeassistant/components/tuya/fan.py
+++ b/homeassistant/components/tuya/fan.py
@@ -1,9 +1,10 @@
 """Support for Tuya fans."""
 from homeassistant.components.fan import (
-    ENTITY_ID_FORMAT, FanEntity, SUPPORT_OSCILLATE, SUPPORT_SET_SPEED)
-from homeassistant.components.tuya import DATA_TUYA, TuyaDevice
+    ENTITY_ID_FORMAT, SUPPORT_OSCILLATE, SUPPORT_SET_SPEED, FanEntity)
 from homeassistant.const import STATE_OFF
 
+from . import DATA_TUYA, TuyaDevice
+
 DEPENDENCIES = ['tuya']
 
 
diff --git a/homeassistant/components/tuya/light.py b/homeassistant/components/tuya/light.py
index 1cf2f8118..17f9b43dc 100644
--- a/homeassistant/components/tuya/light.py
+++ b/homeassistant/components/tuya/light.py
@@ -1,11 +1,11 @@
 """Support for the Tuya lights."""
 from homeassistant.components.light import (
     ATTR_BRIGHTNESS, ATTR_COLOR_TEMP, ATTR_HS_COLOR, ENTITY_ID_FORMAT,
-    SUPPORT_BRIGHTNESS, SUPPORT_COLOR_TEMP, SUPPORT_COLOR, Light)
-
-from homeassistant.components.tuya import DATA_TUYA, TuyaDevice
+    SUPPORT_BRIGHTNESS, SUPPORT_COLOR, SUPPORT_COLOR_TEMP, Light)
 from homeassistant.util import color as colorutil
 
+from . import DATA_TUYA, TuyaDevice
+
 DEPENDENCIES = ['tuya']
 
 
diff --git a/homeassistant/components/tuya/scene.py b/homeassistant/components/tuya/scene.py
index 33d207d85..24383dca6 100644
--- a/homeassistant/components/tuya/scene.py
+++ b/homeassistant/components/tuya/scene.py
@@ -1,6 +1,7 @@
 """Support for the Tuya scenes."""
-from homeassistant.components.scene import Scene, DOMAIN
-from homeassistant.components.tuya import DATA_TUYA, TuyaDevice
+from homeassistant.components.scene import DOMAIN, Scene
+
+from . import DATA_TUYA, TuyaDevice
 
 DEPENDENCIES = ['tuya']
 
diff --git a/homeassistant/components/tuya/switch.py b/homeassistant/components/tuya/switch.py
index 1e8fab2cc..c2e32eedc 100644
--- a/homeassistant/components/tuya/switch.py
+++ b/homeassistant/components/tuya/switch.py
@@ -1,6 +1,7 @@
 """Support for Tuya switches."""
 from homeassistant.components.switch import ENTITY_ID_FORMAT, SwitchDevice
-from homeassistant.components.tuya import DATA_TUYA, TuyaDevice
+
+from . import DATA_TUYA, TuyaDevice
 
 DEPENDENCIES = ['tuya']
 
diff --git a/homeassistant/components/unifi/const.py b/homeassistant/components/unifi/const.py
index 8fe90823c..fdeb15ee4 100644
--- a/homeassistant/components/unifi/const.py
+++ b/homeassistant/components/unifi/const.py
@@ -1,7 +1,7 @@
 """Constants for the UniFi component."""
 import logging
 
-LOGGER = logging.getLogger('homeassistant.components.unifi')
+LOGGER = logging.getLogger('.')
 DOMAIN = 'unifi'
 
 CONTROLLER_ID = '{host}-{site}'
diff --git a/homeassistant/components/unifi/switch.py b/homeassistant/components/unifi/switch.py
index 425b9878f..e90da2dbc 100644
--- a/homeassistant/components/unifi/switch.py
+++ b/homeassistant/components/unifi/switch.py
@@ -1,19 +1,18 @@
 """Support for devices connected to UniFi POE."""
 import asyncio
-import logging
-
 from datetime import timedelta
+import logging
 
 import async_timeout
 
 from homeassistant.components import unifi
 from homeassistant.components.switch import SwitchDevice
-from homeassistant.components.unifi.const import (
-    CONF_CONTROLLER, CONF_SITE_ID, CONTROLLER_ID, DOMAIN)
 from homeassistant.const import CONF_HOST
 from homeassistant.core import callback
 from homeassistant.helpers.device_registry import CONNECTION_NETWORK_MAC
 
+from .const import CONF_CONTROLLER, CONF_SITE_ID, CONTROLLER_ID, DOMAIN
+
 DEPENDENCIES = [DOMAIN]
 SCAN_INTERVAL = timedelta(seconds=15)
 
diff --git a/homeassistant/components/upcloud/binary_sensor.py b/homeassistant/components/upcloud/binary_sensor.py
index 3fd54b349..a0c3c9f34 100644
--- a/homeassistant/components/upcloud/binary_sensor.py
+++ b/homeassistant/components/upcloud/binary_sensor.py
@@ -3,11 +3,11 @@ import logging
 
 import voluptuous as vol
 
-import homeassistant.helpers.config_validation as cv
 from homeassistant.components.binary_sensor import (
-    BinarySensorDevice, PLATFORM_SCHEMA)
-from homeassistant.components.upcloud import (
-    UpCloudServerEntity, CONF_SERVERS, DATA_UPCLOUD)
+    PLATFORM_SCHEMA, BinarySensorDevice)
+import homeassistant.helpers.config_validation as cv
+
+from . import CONF_SERVERS, DATA_UPCLOUD, UpCloudServerEntity
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/upcloud/switch.py b/homeassistant/components/upcloud/switch.py
index 0b44d787f..7e84adccf 100644
--- a/homeassistant/components/upcloud/switch.py
+++ b/homeassistant/components/upcloud/switch.py
@@ -3,11 +3,11 @@ import logging
 
 import voluptuous as vol
 
+from homeassistant.components.switch import PLATFORM_SCHEMA, SwitchDevice
 from homeassistant.const import STATE_OFF
 import homeassistant.helpers.config_validation as cv
-from homeassistant.components.switch import (SwitchDevice, PLATFORM_SCHEMA)
-from homeassistant.components.upcloud import (
-    UpCloudServerEntity, CONF_SERVERS, DATA_UPCLOUD)
+
+from . import CONF_SERVERS, DATA_UPCLOUD, UpCloudServerEntity
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/upnp/const.py b/homeassistant/components/upnp/const.py
index 04932488a..9d2957660 100644
--- a/homeassistant/components/upnp/const.py
+++ b/homeassistant/components/upnp/const.py
@@ -1,12 +1,11 @@
 """Constants for the IGD component."""
 import logging
 
-
 CONF_ENABLE_PORT_MAPPING = 'port_mapping'
 CONF_ENABLE_SENSORS = 'sensors'
 CONF_HASS = 'hass'
 CONF_LOCAL_IP = 'local_ip'
 CONF_PORTS = 'ports'
 DOMAIN = 'upnp'
-LOGGER = logging.getLogger('homeassistant.components.upnp')
+LOGGER = logging.getLogger('.')
 SIGNAL_REMOVE_SENSOR = 'upnp_remove_sensor'
diff --git a/homeassistant/components/upnp/sensor.py b/homeassistant/components/upnp/sensor.py
index 8eccf8834..5f544e1a1 100644
--- a/homeassistant/components/upnp/sensor.py
+++ b/homeassistant/components/upnp/sensor.py
@@ -10,9 +10,8 @@ import logging
 from homeassistant.core import callback
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.helpers.entity import Entity
-from homeassistant.components.upnp.const import DOMAIN as DOMAIN_UPNP
-from homeassistant.components.upnp.const import SIGNAL_REMOVE_SENSOR
 
+from .const import DOMAIN as DOMAIN_UPNP, SIGNAL_REMOVE_SENSOR
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/usps/camera.py b/homeassistant/components/usps/camera.py
index d4769102d..5b5eaca4c 100644
--- a/homeassistant/components/usps/camera.py
+++ b/homeassistant/components/usps/camera.py
@@ -3,7 +3,8 @@ from datetime import timedelta
 import logging
 
 from homeassistant.components.camera import Camera
-from homeassistant.components.usps import DATA_USPS
+
+from . import DATA_USPS
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/usps/sensor.py b/homeassistant/components/usps/sensor.py
index 160371586..3e5fea5c4 100644
--- a/homeassistant/components/usps/sensor.py
+++ b/homeassistant/components/usps/sensor.py
@@ -2,12 +2,13 @@
 from collections import defaultdict
 import logging
 
-from homeassistant.components.usps import DATA_USPS
 from homeassistant.const import ATTR_ATTRIBUTION, ATTR_DATE
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import slugify
 from homeassistant.util.dt import now
 
+from . import DATA_USPS
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['usps']
diff --git a/homeassistant/components/vacuum/demo.py b/homeassistant/components/vacuum/demo.py
index 12507683f..2a19337c0 100644
--- a/homeassistant/components/vacuum/demo.py
+++ b/homeassistant/components/vacuum/demo.py
@@ -6,13 +6,12 @@ https://home-assistant.io/components/demo/
 """
 import logging
 
-from homeassistant.components.vacuum import (
-    ATTR_CLEANED_AREA, SUPPORT_BATTERY, SUPPORT_CLEAN_SPOT,
-    SUPPORT_FAN_SPEED, SUPPORT_LOCATE, SUPPORT_PAUSE, SUPPORT_RETURN_HOME,
-    SUPPORT_SEND_COMMAND, SUPPORT_STATUS, SUPPORT_STOP, SUPPORT_TURN_OFF,
-    SUPPORT_TURN_ON, SUPPORT_STATE, SUPPORT_START, STATE_CLEANING,
-    STATE_DOCKED, STATE_IDLE, STATE_PAUSED, STATE_RETURNING, VacuumDevice,
-    StateVacuumDevice)
+from . import (
+    ATTR_CLEANED_AREA, STATE_CLEANING, STATE_DOCKED, STATE_IDLE, STATE_PAUSED,
+    STATE_RETURNING, SUPPORT_BATTERY, SUPPORT_CLEAN_SPOT, SUPPORT_FAN_SPEED,
+    SUPPORT_LOCATE, SUPPORT_PAUSE, SUPPORT_RETURN_HOME, SUPPORT_SEND_COMMAND,
+    SUPPORT_START, SUPPORT_STATE, SUPPORT_STATUS, SUPPORT_STOP,
+    SUPPORT_TURN_OFF, SUPPORT_TURN_ON, StateVacuumDevice, VacuumDevice)
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/velbus/binary_sensor.py b/homeassistant/components/velbus/binary_sensor.py
index 43ffa232b..cbe1350bd 100644
--- a/homeassistant/components/velbus/binary_sensor.py
+++ b/homeassistant/components/velbus/binary_sensor.py
@@ -2,8 +2,8 @@
 import logging
 
 from homeassistant.components.binary_sensor import BinarySensorDevice
-from homeassistant.components.velbus import (
-    DOMAIN as VELBUS_DOMAIN, VelbusEntity)
+
+from . import DOMAIN as VELBUS_DOMAIN, VelbusEntity
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/velbus/climate.py b/homeassistant/components/velbus/climate.py
index 1f45408a6..470524bb6 100644
--- a/homeassistant/components/velbus/climate.py
+++ b/homeassistant/components/velbus/climate.py
@@ -4,10 +4,9 @@ import logging
 from homeassistant.components.climate import ClimateDevice
 from homeassistant.components.climate.const import (
     STATE_HEAT, SUPPORT_TARGET_TEMPERATURE)
-from homeassistant.components.velbus import (
-    DOMAIN as VELBUS_DOMAIN, VelbusEntity)
-from homeassistant.const import (
-    TEMP_CELSIUS, TEMP_FAHRENHEIT, ATTR_TEMPERATURE)
+from homeassistant.const import ATTR_TEMPERATURE, TEMP_CELSIUS, TEMP_FAHRENHEIT
+
+from . import DOMAIN as VELBUS_DOMAIN, VelbusEntity
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/velbus/cover.py b/homeassistant/components/velbus/cover.py
index 72a5a7af7..b176ab76c 100644
--- a/homeassistant/components/velbus/cover.py
+++ b/homeassistant/components/velbus/cover.py
@@ -5,12 +5,12 @@ import time
 import voluptuous as vol
 
 from homeassistant.components.cover import (
-    CoverDevice, PLATFORM_SCHEMA, SUPPORT_OPEN, SUPPORT_CLOSE,
-    SUPPORT_STOP)
-from homeassistant.components.velbus import DOMAIN
-from homeassistant.const import (CONF_COVERS, CONF_NAME)
+    PLATFORM_SCHEMA, SUPPORT_CLOSE, SUPPORT_OPEN, SUPPORT_STOP, CoverDevice)
+from homeassistant.const import CONF_COVERS, CONF_NAME
 import homeassistant.helpers.config_validation as cv
 
+from . import DOMAIN
+
 _LOGGER = logging.getLogger(__name__)
 
 COVER_SCHEMA = vol.Schema({
diff --git a/homeassistant/components/velbus/sensor.py b/homeassistant/components/velbus/sensor.py
index 10ad89ab8..ad78a795a 100644
--- a/homeassistant/components/velbus/sensor.py
+++ b/homeassistant/components/velbus/sensor.py
@@ -1,8 +1,7 @@
 """Support for Velbus sensors."""
 import logging
 
-from homeassistant.components.velbus import (
-    DOMAIN as VELBUS_DOMAIN, VelbusEntity)
+from . import DOMAIN as VELBUS_DOMAIN, VelbusEntity
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/velbus/switch.py b/homeassistant/components/velbus/switch.py
index 7104bb075..b5ef89ca4 100644
--- a/homeassistant/components/velbus/switch.py
+++ b/homeassistant/components/velbus/switch.py
@@ -2,8 +2,8 @@
 import logging
 
 from homeassistant.components.switch import SwitchDevice
-from homeassistant.components.velbus import (
-    DOMAIN as VELBUS_DOMAIN, VelbusEntity)
+
+from . import DOMAIN as VELBUS_DOMAIN, VelbusEntity
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/velux/cover.py b/homeassistant/components/velux/cover.py
index 6abaa42bb..1893909b7 100644
--- a/homeassistant/components/velux/cover.py
+++ b/homeassistant/components/velux/cover.py
@@ -2,9 +2,10 @@
 from homeassistant.components.cover import (
     ATTR_POSITION, SUPPORT_CLOSE, SUPPORT_OPEN, SUPPORT_SET_POSITION,
     SUPPORT_STOP, CoverDevice)
-from homeassistant.components.velux import DATA_VELUX
 from homeassistant.core import callback
 
+from . import DATA_VELUX
+
 DEPENDENCIES = ['velux']
 
 
diff --git a/homeassistant/components/velux/scene.py b/homeassistant/components/velux/scene.py
index b0716dc2c..614d3f349 100644
--- a/homeassistant/components/velux/scene.py
+++ b/homeassistant/components/velux/scene.py
@@ -1,6 +1,7 @@
 """Support for VELUX scenes."""
 from homeassistant.components.scene import Scene
-from homeassistant.components.velux import _LOGGER, DATA_VELUX
+
+from . import _LOGGER, DATA_VELUX
 
 DEPENDENCIES = ['velux']
 
diff --git a/homeassistant/components/vera/binary_sensor.py b/homeassistant/components/vera/binary_sensor.py
index 837422dbc..c81fa3193 100644
--- a/homeassistant/components/vera/binary_sensor.py
+++ b/homeassistant/components/vera/binary_sensor.py
@@ -2,9 +2,9 @@
 import logging
 
 from homeassistant.components.binary_sensor import (
-    BinarySensorDevice, ENTITY_ID_FORMAT)
-from homeassistant.components.vera import (
-    VERA_CONTROLLER, VERA_DEVICES, VeraDevice)
+    ENTITY_ID_FORMAT, BinarySensorDevice)
+
+from . import VERA_CONTROLLER, VERA_DEVICES, VeraDevice
 
 DEPENDENCIES = ['vera']
 
diff --git a/homeassistant/components/vera/climate.py b/homeassistant/components/vera/climate.py
index 9c812da92..f8ff9c21b 100644
--- a/homeassistant/components/vera/climate.py
+++ b/homeassistant/components/vera/climate.py
@@ -1,21 +1,15 @@
 """Support for Vera thermostats."""
 import logging
 
-from homeassistant.util import convert
-from homeassistant.components.climate import ClimateDevice, ENTITY_ID_FORMAT
+from homeassistant.components.climate import ENTITY_ID_FORMAT, ClimateDevice
 from homeassistant.components.climate.const import (
-    STATE_AUTO, STATE_COOL,
-    STATE_HEAT, SUPPORT_TARGET_TEMPERATURE,
-    SUPPORT_OPERATION_MODE, SUPPORT_FAN_MODE)
+    STATE_AUTO, STATE_COOL, STATE_HEAT, SUPPORT_FAN_MODE,
+    SUPPORT_OPERATION_MODE, SUPPORT_TARGET_TEMPERATURE)
 from homeassistant.const import (
-    STATE_ON,
-    STATE_OFF,
-    TEMP_FAHRENHEIT,
-    TEMP_CELSIUS,
-    ATTR_TEMPERATURE)
+    ATTR_TEMPERATURE, STATE_OFF, STATE_ON, TEMP_CELSIUS, TEMP_FAHRENHEIT)
+from homeassistant.util import convert
 
-from homeassistant.components.vera import (
-    VERA_CONTROLLER, VERA_DEVICES, VeraDevice)
+from . import VERA_CONTROLLER, VERA_DEVICES, VeraDevice
 
 DEPENDENCIES = ['vera']
 
diff --git a/homeassistant/components/vera/cover.py b/homeassistant/components/vera/cover.py
index 1168cca84..4cf2aac3b 100644
--- a/homeassistant/components/vera/cover.py
+++ b/homeassistant/components/vera/cover.py
@@ -1,10 +1,10 @@
 """Support for Vera cover - curtains, rollershutters etc."""
 import logging
 
-from homeassistant.components.cover import CoverDevice, ENTITY_ID_FORMAT, \
-    ATTR_POSITION
-from homeassistant.components.vera import (
-    VERA_CONTROLLER, VERA_DEVICES, VeraDevice)
+from homeassistant.components.cover import (
+    ATTR_POSITION, ENTITY_ID_FORMAT, CoverDevice)
+
+from . import VERA_CONTROLLER, VERA_DEVICES, VeraDevice
 
 DEPENDENCIES = ['vera']
 
diff --git a/homeassistant/components/vera/light.py b/homeassistant/components/vera/light.py
index 93e54b915..e4e315bb5 100644
--- a/homeassistant/components/vera/light.py
+++ b/homeassistant/components/vera/light.py
@@ -2,12 +2,12 @@
 import logging
 
 from homeassistant.components.light import (
-    ATTR_BRIGHTNESS, ATTR_HS_COLOR, ENTITY_ID_FORMAT,
-    SUPPORT_BRIGHTNESS, SUPPORT_COLOR, Light)
-from homeassistant.components.vera import (
-    VERA_CONTROLLER, VERA_DEVICES, VeraDevice)
+    ATTR_BRIGHTNESS, ATTR_HS_COLOR, ENTITY_ID_FORMAT, SUPPORT_BRIGHTNESS,
+    SUPPORT_COLOR, Light)
 import homeassistant.util.color as color_util
 
+from . import VERA_CONTROLLER, VERA_DEVICES, VeraDevice
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['vera']
diff --git a/homeassistant/components/vera/lock.py b/homeassistant/components/vera/lock.py
index 61d5f0baf..5ace07b87 100644
--- a/homeassistant/components/vera/lock.py
+++ b/homeassistant/components/vera/lock.py
@@ -2,9 +2,9 @@
 import logging
 
 from homeassistant.components.lock import ENTITY_ID_FORMAT, LockDevice
-from homeassistant.const import (STATE_LOCKED, STATE_UNLOCKED)
-from homeassistant.components.vera import (
-    VERA_CONTROLLER, VERA_DEVICES, VeraDevice)
+from homeassistant.const import STATE_LOCKED, STATE_UNLOCKED
+
+from . import VERA_CONTROLLER, VERA_DEVICES, VeraDevice
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/vera/scene.py b/homeassistant/components/vera/scene.py
index 0960512f6..5000f9bc5 100644
--- a/homeassistant/components/vera/scene.py
+++ b/homeassistant/components/vera/scene.py
@@ -1,10 +1,10 @@
 """Support for Vera scenes."""
 import logging
 
-from homeassistant.util import slugify
 from homeassistant.components.scene import Scene
-from homeassistant.components.vera import (
-    VERA_CONTROLLER, VERA_SCENES, VERA_ID_FORMAT)
+from homeassistant.util import slugify
+
+from . import VERA_CONTROLLER, VERA_ID_FORMAT, VERA_SCENES
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/vera/sensor.py b/homeassistant/components/vera/sensor.py
index 8b68cc919..3c026046b 100644
--- a/homeassistant/components/vera/sensor.py
+++ b/homeassistant/components/vera/sensor.py
@@ -1,14 +1,13 @@
 """Support for Vera sensors."""
-import logging
 from datetime import timedelta
+import logging
 
-from homeassistant.const import (
-    TEMP_CELSIUS, TEMP_FAHRENHEIT)
-from homeassistant.helpers.entity import Entity
 from homeassistant.components.sensor import ENTITY_ID_FORMAT
+from homeassistant.const import TEMP_CELSIUS, TEMP_FAHRENHEIT
+from homeassistant.helpers.entity import Entity
 from homeassistant.util import convert
-from homeassistant.components.vera import (
-    VERA_CONTROLLER, VERA_DEVICES, VeraDevice)
+
+from . import VERA_CONTROLLER, VERA_DEVICES, VeraDevice
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/vera/switch.py b/homeassistant/components/vera/switch.py
index 2f4d18e34..f422e49bf 100644
--- a/homeassistant/components/vera/switch.py
+++ b/homeassistant/components/vera/switch.py
@@ -1,10 +1,10 @@
 """Support for Vera switches."""
 import logging
 
-from homeassistant.util import convert
 from homeassistant.components.switch import ENTITY_ID_FORMAT, SwitchDevice
-from homeassistant.components.vera import (
-    VERA_CONTROLLER, VERA_DEVICES, VeraDevice)
+from homeassistant.util import convert
+
+from . import VERA_CONTROLLER, VERA_DEVICES, VeraDevice
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/verisure/alarm_control_panel.py b/homeassistant/components/verisure/alarm_control_panel.py
index adcdcd668..dc73be056 100644
--- a/homeassistant/components/verisure/alarm_control_panel.py
+++ b/homeassistant/components/verisure/alarm_control_panel.py
@@ -3,11 +3,11 @@ import logging
 from time import sleep
 
 import homeassistant.components.alarm_control_panel as alarm
-from homeassistant.components.verisure import CONF_ALARM, CONF_CODE_DIGITS
-from homeassistant.components.verisure import HUB as hub
 from homeassistant.const import (
     STATE_ALARM_ARMED_AWAY, STATE_ALARM_ARMED_HOME, STATE_ALARM_DISARMED)
 
+from . import CONF_ALARM, CONF_CODE_DIGITS, HUB as hub
+
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/verisure/binary_sensor.py b/homeassistant/components/verisure/binary_sensor.py
index 4c9e79724..1c1e0ee15 100644
--- a/homeassistant/components/verisure/binary_sensor.py
+++ b/homeassistant/components/verisure/binary_sensor.py
@@ -2,8 +2,8 @@
 import logging
 
 from homeassistant.components.binary_sensor import BinarySensorDevice
-from homeassistant.components.verisure import CONF_DOOR_WINDOW
-from homeassistant.components.verisure import HUB as hub
+
+from . import CONF_DOOR_WINDOW, HUB as hub
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/verisure/camera.py b/homeassistant/components/verisure/camera.py
index 7112e535a..fad3d2bef 100644
--- a/homeassistant/components/verisure/camera.py
+++ b/homeassistant/components/verisure/camera.py
@@ -5,8 +5,8 @@ import os
 
 from homeassistant.components.camera import Camera
 from homeassistant.const import EVENT_HOMEASSISTANT_STOP
-from homeassistant.components.verisure import HUB as hub
-from homeassistant.components.verisure import CONF_SMARTCAM
+
+from . import CONF_SMARTCAM, HUB as hub
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/verisure/lock.py b/homeassistant/components/verisure/lock.py
index cdd230ea7..2010504c9 100644
--- a/homeassistant/components/verisure/lock.py
+++ b/homeassistant/components/verisure/lock.py
@@ -1,13 +1,11 @@
 """Support for Verisure locks."""
 import logging
-from time import sleep
-from time import time
-from homeassistant.components.verisure import HUB as hub
-from homeassistant.components.verisure import (
-    CONF_LOCKS, CONF_DEFAULT_LOCK_CODE, CONF_CODE_DIGITS)
+from time import sleep, time
+
 from homeassistant.components.lock import LockDevice
-from homeassistant.const import (
-    ATTR_CODE, STATE_LOCKED, STATE_UNLOCKED)
+from homeassistant.const import ATTR_CODE, STATE_LOCKED, STATE_UNLOCKED
+
+from . import CONF_CODE_DIGITS, CONF_DEFAULT_LOCK_CODE, CONF_LOCKS, HUB as hub
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/verisure/sensor.py b/homeassistant/components/verisure/sensor.py
index 13706d840..cf5205a61 100644
--- a/homeassistant/components/verisure/sensor.py
+++ b/homeassistant/components/verisure/sensor.py
@@ -1,12 +1,11 @@
 """Support for Verisure sensors."""
 import logging
 
-from homeassistant.components.verisure import HUB as hub
-from homeassistant.components.verisure import (
-    CONF_THERMOMETERS, CONF_HYDROMETERS, CONF_MOUSE)
 from homeassistant.const import TEMP_CELSIUS
 from homeassistant.helpers.entity import Entity
 
+from . import CONF_HYDROMETERS, CONF_MOUSE, CONF_THERMOMETERS, HUB as hub
+
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/verisure/switch.py b/homeassistant/components/verisure/switch.py
index a418eec6b..eb69d4c02 100644
--- a/homeassistant/components/verisure/switch.py
+++ b/homeassistant/components/verisure/switch.py
@@ -2,10 +2,10 @@
 import logging
 from time import time
 
-from homeassistant.components.verisure import HUB as hub
-from homeassistant.components.verisure import CONF_SMARTPLUGS
 from homeassistant.components.switch import SwitchDevice
 
+from . import CONF_SMARTPLUGS, HUB as hub
+
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/volvooncall/binary_sensor.py b/homeassistant/components/volvooncall/binary_sensor.py
index 7158e4df6..4b4f4ff77 100644
--- a/homeassistant/components/volvooncall/binary_sensor.py
+++ b/homeassistant/components/volvooncall/binary_sensor.py
@@ -1,9 +1,10 @@
 """Support for VOC."""
 import logging
 
-from homeassistant.components.volvooncall import VolvoEntity, DATA_KEY
 from homeassistant.components.binary_sensor import (
-    BinarySensorDevice, DEVICE_CLASSES)
+    DEVICE_CLASSES, BinarySensorDevice)
+
+from . import DATA_KEY, VolvoEntity
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/volvooncall/device_tracker.py b/homeassistant/components/volvooncall/device_tracker.py
index d4838c015..6c7e0914f 100644
--- a/homeassistant/components/volvooncall/device_tracker.py
+++ b/homeassistant/components/volvooncall/device_tracker.py
@@ -1,10 +1,11 @@
 """Support for tracking a Volvo."""
 import logging
 
-from homeassistant.util import slugify
-from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.components.device_tracker import SOURCE_TYPE_GPS
-from homeassistant.components.volvooncall import DATA_KEY, SIGNAL_STATE_UPDATED
+from homeassistant.helpers.dispatcher import async_dispatcher_connect
+from homeassistant.util import slugify
+
+from . import DATA_KEY, SIGNAL_STATE_UPDATED
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/volvooncall/lock.py b/homeassistant/components/volvooncall/lock.py
index f281ea644..4a81f9017 100644
--- a/homeassistant/components/volvooncall/lock.py
+++ b/homeassistant/components/volvooncall/lock.py
@@ -2,7 +2,8 @@
 import logging
 
 from homeassistant.components.lock import LockDevice
-from homeassistant.components.volvooncall import VolvoEntity, DATA_KEY
+
+from . import DATA_KEY, VolvoEntity
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/volvooncall/sensor.py b/homeassistant/components/volvooncall/sensor.py
index 07f16e580..8921bf057 100644
--- a/homeassistant/components/volvooncall/sensor.py
+++ b/homeassistant/components/volvooncall/sensor.py
@@ -1,7 +1,7 @@
 """Support for Volvo On Call sensors."""
 import logging
 
-from homeassistant.components.volvooncall import VolvoEntity, DATA_KEY
+from . import DATA_KEY, VolvoEntity
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/volvooncall/switch.py b/homeassistant/components/volvooncall/switch.py
index d3985557c..372909d1e 100644
--- a/homeassistant/components/volvooncall/switch.py
+++ b/homeassistant/components/volvooncall/switch.py
@@ -1,9 +1,10 @@
 """Support for Volvo heater."""
 import logging
 
-from homeassistant.components.volvooncall import VolvoEntity, DATA_KEY
 from homeassistant.helpers.entity import ToggleEntity
 
+from . import DATA_KEY, VolvoEntity
+
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/vultr/binary_sensor.py b/homeassistant/components/vultr/binary_sensor.py
index 149a6c282..dccb648c9 100644
--- a/homeassistant/components/vultr/binary_sensor.py
+++ b/homeassistant/components/vultr/binary_sensor.py
@@ -8,15 +8,16 @@ import logging
 
 import voluptuous as vol
 
-import homeassistant.helpers.config_validation as cv
-from homeassistant.const import CONF_NAME
 from homeassistant.components.binary_sensor import (
-    BinarySensorDevice, PLATFORM_SCHEMA)
-from homeassistant.components.vultr import (
-    CONF_SUBSCRIPTION, ATTR_AUTO_BACKUPS, ATTR_ALLOWED_BANDWIDTH,
-    ATTR_CREATED_AT, ATTR_SUBSCRIPTION_ID, ATTR_SUBSCRIPTION_NAME,
-    ATTR_IPV4_ADDRESS, ATTR_IPV6_ADDRESS, ATTR_MEMORY, ATTR_DISK,
-    ATTR_COST_PER_MONTH, ATTR_OS, ATTR_REGION, ATTR_VCPUS, DATA_VULTR)
+    PLATFORM_SCHEMA, BinarySensorDevice)
+from homeassistant.const import CONF_NAME
+import homeassistant.helpers.config_validation as cv
+
+from . import (
+    ATTR_ALLOWED_BANDWIDTH, ATTR_AUTO_BACKUPS, ATTR_COST_PER_MONTH,
+    ATTR_CREATED_AT, ATTR_DISK, ATTR_IPV4_ADDRESS, ATTR_IPV6_ADDRESS,
+    ATTR_MEMORY, ATTR_OS, ATTR_REGION, ATTR_SUBSCRIPTION_ID,
+    ATTR_SUBSCRIPTION_NAME, ATTR_VCPUS, CONF_SUBSCRIPTION, DATA_VULTR)
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/vultr/sensor.py b/homeassistant/components/vultr/sensor.py
index a727e5bd2..7ca731cab 100644
--- a/homeassistant/components/vultr/sensor.py
+++ b/homeassistant/components/vultr/sensor.py
@@ -9,13 +9,14 @@ import logging
 import voluptuous as vol
 
 from homeassistant.components.sensor import PLATFORM_SCHEMA
-from homeassistant.components.vultr import (
-    ATTR_CURRENT_BANDWIDTH_USED, ATTR_PENDING_CHARGES, CONF_SUBSCRIPTION,
-    DATA_VULTR)
 from homeassistant.const import CONF_MONITORED_CONDITIONS, CONF_NAME
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
+from . import (
+    ATTR_CURRENT_BANDWIDTH_USED, ATTR_PENDING_CHARGES, CONF_SUBSCRIPTION,
+    DATA_VULTR)
+
 _LOGGER = logging.getLogger(__name__)
 
 DEFAULT_NAME = 'Vultr {} {}'
diff --git a/homeassistant/components/vultr/switch.py b/homeassistant/components/vultr/switch.py
index 874d1979d..1f7d9ceaa 100644
--- a/homeassistant/components/vultr/switch.py
+++ b/homeassistant/components/vultr/switch.py
@@ -8,14 +8,15 @@ import logging
 
 import voluptuous as vol
 
-import homeassistant.helpers.config_validation as cv
+from homeassistant.components.switch import PLATFORM_SCHEMA, SwitchDevice
 from homeassistant.const import CONF_NAME
-from homeassistant.components.switch import (SwitchDevice, PLATFORM_SCHEMA)
-from homeassistant.components.vultr import (
-    CONF_SUBSCRIPTION, ATTR_AUTO_BACKUPS, ATTR_ALLOWED_BANDWIDTH,
-    ATTR_CREATED_AT, ATTR_SUBSCRIPTION_ID, ATTR_SUBSCRIPTION_NAME,
-    ATTR_IPV4_ADDRESS, ATTR_IPV6_ADDRESS, ATTR_MEMORY, ATTR_DISK,
-    ATTR_COST_PER_MONTH, ATTR_OS, ATTR_REGION, ATTR_VCPUS, DATA_VULTR)
+import homeassistant.helpers.config_validation as cv
+
+from . import (
+    ATTR_ALLOWED_BANDWIDTH, ATTR_AUTO_BACKUPS, ATTR_COST_PER_MONTH,
+    ATTR_CREATED_AT, ATTR_DISK, ATTR_IPV4_ADDRESS, ATTR_IPV6_ADDRESS,
+    ATTR_MEMORY, ATTR_OS, ATTR_REGION, ATTR_SUBSCRIPTION_ID,
+    ATTR_SUBSCRIPTION_NAME, ATTR_VCPUS, CONF_SUBSCRIPTION, DATA_VULTR)
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/w800rf32/binary_sensor.py b/homeassistant/components/w800rf32/binary_sensor.py
index 855a5f3ed..c94248349 100644
--- a/homeassistant/components/w800rf32/binary_sensor.py
+++ b/homeassistant/components/w800rf32/binary_sensor.py
@@ -5,13 +5,13 @@ import voluptuous as vol
 
 from homeassistant.components.binary_sensor import (
     DEVICE_CLASSES_SCHEMA, PLATFORM_SCHEMA, BinarySensorDevice)
-from homeassistant.components.w800rf32 import (W800RF32_DEVICE)
-from homeassistant.const import (CONF_DEVICE_CLASS, CONF_NAME, CONF_DEVICES)
+from homeassistant.const import CONF_DEVICE_CLASS, CONF_DEVICES, CONF_NAME
 from homeassistant.core import callback
-from homeassistant.helpers import config_validation as cv
-from homeassistant.helpers import event as evt
+from homeassistant.helpers import config_validation as cv, event as evt
+from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.util import dt as dt_util
-from homeassistant.helpers.dispatcher import (async_dispatcher_connect)
+
+from . import W800RF32_DEVICE
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/water_heater/demo.py b/homeassistant/components/water_heater/demo.py
index b551993ac..37ae535cd 100644
--- a/homeassistant/components/water_heater/demo.py
+++ b/homeassistant/components/water_heater/demo.py
@@ -1,10 +1,9 @@
 """Demo platform that offers a fake water heater device."""
-from homeassistant.components.water_heater import (
-    WaterHeaterDevice,
-    SUPPORT_TARGET_TEMPERATURE,
-    SUPPORT_AWAY_MODE,
-    SUPPORT_OPERATION_MODE)
-from homeassistant.const import TEMP_FAHRENHEIT, ATTR_TEMPERATURE, TEMP_CELSIUS
+from homeassistant.const import ATTR_TEMPERATURE, TEMP_CELSIUS, TEMP_FAHRENHEIT
+
+from . import (
+    SUPPORT_AWAY_MODE, SUPPORT_OPERATION_MODE, SUPPORT_TARGET_TEMPERATURE,
+    WaterHeaterDevice)
 
 SUPPORT_FLAGS_HEATER = (SUPPORT_TARGET_TEMPERATURE | SUPPORT_OPERATION_MODE |
                         SUPPORT_AWAY_MODE)
diff --git a/homeassistant/components/waterfurnace/sensor.py b/homeassistant/components/waterfurnace/sensor.py
index 65632f514..8a43a7dac 100644
--- a/homeassistant/components/waterfurnace/sensor.py
+++ b/homeassistant/components/waterfurnace/sensor.py
@@ -6,14 +6,13 @@ https://home-assistant.io/components/sensor.waterfurnace/
 """
 
 from homeassistant.components.sensor import ENTITY_ID_FORMAT
-from homeassistant.components.waterfurnace import (
-    DOMAIN as WF_DOMAIN, UPDATE_TOPIC
-)
 from homeassistant.const import TEMP_FAHRENHEIT
 from homeassistant.core import callback
 from homeassistant.helpers.entity import Entity
 from homeassistant.util import slugify
 
+from . import DOMAIN as WF_DOMAIN, UPDATE_TOPIC
+
 
 class WFSensorConfig:
     """Water Furnace Sensor configuration."""
diff --git a/homeassistant/components/wink/alarm_control_panel.py b/homeassistant/components/wink/alarm_control_panel.py
index 594198ddd..73ca9a3ca 100644
--- a/homeassistant/components/wink/alarm_control_panel.py
+++ b/homeassistant/components/wink/alarm_control_panel.py
@@ -2,10 +2,11 @@
 import logging
 
 import homeassistant.components.alarm_control_panel as alarm
-from homeassistant.components.wink import DOMAIN, WinkDevice
 from homeassistant.const import (
     STATE_ALARM_ARMED_AWAY, STATE_ALARM_ARMED_HOME, STATE_ALARM_DISARMED)
 
+from . import DOMAIN, WinkDevice
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['wink']
diff --git a/homeassistant/components/wink/binary_sensor.py b/homeassistant/components/wink/binary_sensor.py
index 12e1b557a..f3757d7bf 100644
--- a/homeassistant/components/wink/binary_sensor.py
+++ b/homeassistant/components/wink/binary_sensor.py
@@ -2,7 +2,8 @@
 import logging
 
 from homeassistant.components.binary_sensor import BinarySensorDevice
-from homeassistant.components.wink import DOMAIN, WinkDevice
+
+from . import DOMAIN, WinkDevice
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/wink/climate.py b/homeassistant/components/wink/climate.py
index efd8eecf5..f5e75c1fb 100644
--- a/homeassistant/components/wink/climate.py
+++ b/homeassistant/components/wink/climate.py
@@ -4,17 +4,17 @@ import logging
 from homeassistant.components.climate import ClimateDevice
 from homeassistant.components.climate.const import (
     ATTR_CURRENT_HUMIDITY, ATTR_TARGET_TEMP_HIGH, ATTR_TARGET_TEMP_LOW,
-    STATE_AUTO, STATE_COOL, STATE_ECO,
-    STATE_FAN_ONLY, STATE_HEAT, SUPPORT_AUX_HEAT,
-    SUPPORT_AWAY_MODE, SUPPORT_FAN_MODE,
+    STATE_AUTO, STATE_COOL, STATE_ECO, STATE_FAN_ONLY, STATE_HEAT,
+    SUPPORT_AUX_HEAT, SUPPORT_AWAY_MODE, SUPPORT_FAN_MODE,
     SUPPORT_OPERATION_MODE, SUPPORT_TARGET_TEMPERATURE,
     SUPPORT_TARGET_TEMPERATURE_HIGH, SUPPORT_TARGET_TEMPERATURE_LOW)
-from homeassistant.components.wink import DOMAIN, WinkDevice
 from homeassistant.const import (
     ATTR_TEMPERATURE, PRECISION_TENTHS, STATE_OFF, STATE_ON, STATE_UNKNOWN,
     TEMP_CELSIUS)
 from homeassistant.helpers.temperature import display_temp as show_temp
 
+from . import DOMAIN, WinkDevice
+
 _LOGGER = logging.getLogger(__name__)
 
 ATTR_ECO_TARGET = 'eco_target'
diff --git a/homeassistant/components/wink/cover.py b/homeassistant/components/wink/cover.py
index 19ff79259..f4c4841c2 100644
--- a/homeassistant/components/wink/cover.py
+++ b/homeassistant/components/wink/cover.py
@@ -1,6 +1,7 @@
 """Support for Wink covers."""
-from homeassistant.components.cover import CoverDevice, ATTR_POSITION
-from homeassistant.components.wink import WinkDevice, DOMAIN
+from homeassistant.components.cover import ATTR_POSITION, CoverDevice
+
+from . import DOMAIN, WinkDevice
 
 DEPENDENCIES = ['wink']
 
diff --git a/homeassistant/components/wink/fan.py b/homeassistant/components/wink/fan.py
index 5bc6e03c4..52a27eb3c 100644
--- a/homeassistant/components/wink/fan.py
+++ b/homeassistant/components/wink/fan.py
@@ -2,9 +2,10 @@
 import logging
 
 from homeassistant.components.fan import (
-    SPEED_HIGH, SPEED_LOW, SPEED_MEDIUM, SUPPORT_DIRECTION,
-    SUPPORT_SET_SPEED, FanEntity)
-from homeassistant.components.wink import DOMAIN, WinkDevice
+    SPEED_HIGH, SPEED_LOW, SPEED_MEDIUM, SUPPORT_DIRECTION, SUPPORT_SET_SPEED,
+    FanEntity)
+
+from . import DOMAIN, WinkDevice
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/wink/light.py b/homeassistant/components/wink/light.py
index 14a983154..95747bcc1 100644
--- a/homeassistant/components/wink/light.py
+++ b/homeassistant/components/wink/light.py
@@ -1,11 +1,12 @@
 """Support for Wink lights."""
 from homeassistant.components.light import (
     ATTR_BRIGHTNESS, ATTR_COLOR_TEMP, ATTR_HS_COLOR, SUPPORT_BRIGHTNESS,
-    SUPPORT_COLOR_TEMP, SUPPORT_COLOR, Light)
-from homeassistant.components.wink import DOMAIN, WinkDevice
+    SUPPORT_COLOR, SUPPORT_COLOR_TEMP, Light)
 from homeassistant.util import color as color_util
-from homeassistant.util.color import \
-    color_temperature_mired_to_kelvin as mired_to_kelvin
+from homeassistant.util.color import (
+    color_temperature_mired_to_kelvin as mired_to_kelvin)
+
+from . import DOMAIN, WinkDevice
 
 DEPENDENCIES = ['wink']
 
diff --git a/homeassistant/components/wink/lock.py b/homeassistant/components/wink/lock.py
index 0ef4f30dc..8e6fb9b28 100644
--- a/homeassistant/components/wink/lock.py
+++ b/homeassistant/components/wink/lock.py
@@ -4,11 +4,12 @@ import logging
 import voluptuous as vol
 
 from homeassistant.components.lock import LockDevice
-from homeassistant.components.wink import DOMAIN, WinkDevice
 from homeassistant.const import (
     ATTR_CODE, ATTR_ENTITY_ID, ATTR_NAME, STATE_UNKNOWN)
 import homeassistant.helpers.config_validation as cv
 
+from . import DOMAIN, WinkDevice
+
 DEPENDENCIES = ['wink']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/wink/scene.py b/homeassistant/components/wink/scene.py
index d05fe58a4..e77402c4d 100644
--- a/homeassistant/components/wink/scene.py
+++ b/homeassistant/components/wink/scene.py
@@ -2,7 +2,8 @@
 import logging
 
 from homeassistant.components.scene import Scene
-from homeassistant.components.wink import DOMAIN, WinkDevice
+
+from . import DOMAIN, WinkDevice
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/wink/sensor.py b/homeassistant/components/wink/sensor.py
index ab61769c9..3dfd704d5 100644
--- a/homeassistant/components/wink/sensor.py
+++ b/homeassistant/components/wink/sensor.py
@@ -1,9 +1,10 @@
 """Support for Wink sensors."""
 import logging
 
-from homeassistant.components.wink import DOMAIN, WinkDevice
 from homeassistant.const import TEMP_CELSIUS
 
+from . import DOMAIN, WinkDevice
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['wink']
diff --git a/homeassistant/components/wink/switch.py b/homeassistant/components/wink/switch.py
index cd5502687..6ee777dd1 100644
--- a/homeassistant/components/wink/switch.py
+++ b/homeassistant/components/wink/switch.py
@@ -1,9 +1,10 @@
 """Support for Wink switches."""
 import logging
 
-from homeassistant.components.wink import DOMAIN, WinkDevice
 from homeassistant.helpers.entity import ToggleEntity
 
+from . import DOMAIN, WinkDevice
+
 DEPENDENCIES = ['wink']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/wink/water_heater.py b/homeassistant/components/wink/water_heater.py
index 34cd86a50..343f4a766 100644
--- a/homeassistant/components/wink/water_heater.py
+++ b/homeassistant/components/wink/water_heater.py
@@ -2,14 +2,12 @@
 import logging
 
 from homeassistant.components.water_heater import (
-    ATTR_TEMPERATURE, STATE_ECO, STATE_ELECTRIC,
-    STATE_PERFORMANCE, SUPPORT_AWAY_MODE, STATE_HEAT_PUMP,
-    STATE_GAS, STATE_HIGH_DEMAND,
-    SUPPORT_OPERATION_MODE, SUPPORT_TARGET_TEMPERATURE,
-    WaterHeaterDevice)
-from homeassistant.components.wink import DOMAIN, WinkDevice
-from homeassistant.const import (
-    STATE_OFF, STATE_UNKNOWN, TEMP_CELSIUS)
+    ATTR_TEMPERATURE, STATE_ECO, STATE_ELECTRIC, STATE_GAS, STATE_HEAT_PUMP,
+    STATE_HIGH_DEMAND, STATE_PERFORMANCE, SUPPORT_AWAY_MODE,
+    SUPPORT_OPERATION_MODE, SUPPORT_TARGET_TEMPERATURE, WaterHeaterDevice)
+from homeassistant.const import STATE_OFF, STATE_UNKNOWN, TEMP_CELSIUS
+
+from . import DOMAIN, WinkDevice
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/wirelesstag/binary_sensor.py b/homeassistant/components/wirelesstag/binary_sensor.py
index 6f2c24a77..aefa5ed34 100644
--- a/homeassistant/components/wirelesstag/binary_sensor.py
+++ b/homeassistant/components/wirelesstag/binary_sensor.py
@@ -3,17 +3,16 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.core import callback
-from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.components.binary_sensor import (
-    BinarySensorDevice, PLATFORM_SCHEMA)
-from homeassistant.components.wirelesstag import (
-    DOMAIN as WIRELESSTAG_DOMAIN,
-    SIGNAL_BINARY_EVENT_UPDATE,
-    WirelessTagBaseSensor)
-from homeassistant.const import (
-    CONF_MONITORED_CONDITIONS, STATE_ON, STATE_OFF)
+    PLATFORM_SCHEMA, BinarySensorDevice)
+from homeassistant.const import CONF_MONITORED_CONDITIONS, STATE_OFF, STATE_ON
+from homeassistant.core import callback
 import homeassistant.helpers.config_validation as cv
+from homeassistant.helpers.dispatcher import async_dispatcher_connect
+
+from . import (
+    DOMAIN as WIRELESSTAG_DOMAIN, SIGNAL_BINARY_EVENT_UPDATE,
+    WirelessTagBaseSensor)
 
 DEPENDENCIES = ['wirelesstag']
 
diff --git a/homeassistant/components/wirelesstag/sensor.py b/homeassistant/components/wirelesstag/sensor.py
index 3703e214d..ca26e07b9 100644
--- a/homeassistant/components/wirelesstag/sensor.py
+++ b/homeassistant/components/wirelesstag/sensor.py
@@ -1,17 +1,16 @@
 """Sensor support for Wireless Sensor Tags platform."""
 import logging
+
 import voluptuous as vol
 
 from homeassistant.components.sensor import PLATFORM_SCHEMA
+from homeassistant.const import CONF_MONITORED_CONDITIONS
 from homeassistant.core import callback
-from homeassistant.helpers.dispatcher import async_dispatcher_connect
-from homeassistant.const import (
-    CONF_MONITORED_CONDITIONS)
-from homeassistant.components.wirelesstag import (
-    DOMAIN as WIRELESSTAG_DOMAIN,
-    SIGNAL_TAG_UPDATE,
-    WirelessTagBaseSensor)
 import homeassistant.helpers.config_validation as cv
+from homeassistant.helpers.dispatcher import async_dispatcher_connect
+
+from . import (
+    DOMAIN as WIRELESSTAG_DOMAIN, SIGNAL_TAG_UPDATE, WirelessTagBaseSensor)
 
 DEPENDENCIES = ['wirelesstag']
 
diff --git a/homeassistant/components/wirelesstag/switch.py b/homeassistant/components/wirelesstag/switch.py
index 913438e9d..4a2b64acd 100644
--- a/homeassistant/components/wirelesstag/switch.py
+++ b/homeassistant/components/wirelesstag/switch.py
@@ -3,15 +3,12 @@ import logging
 
 import voluptuous as vol
 
-
-from homeassistant.components.wirelesstag import (
-    DOMAIN as WIRELESSTAG_DOMAIN,
-    WirelessTagBaseSensor)
 from homeassistant.components.switch import PLATFORM_SCHEMA, SwitchDevice
-from homeassistant.const import (
-    CONF_MONITORED_CONDITIONS)
+from homeassistant.const import CONF_MONITORED_CONDITIONS
 import homeassistant.helpers.config_validation as cv
 
+from . import DOMAIN as WIRELESSTAG_DOMAIN, WirelessTagBaseSensor
+
 DEPENDENCIES = ['wirelesstag']
 
 _LOGGER = logging.getLogger(__name__)
diff --git a/homeassistant/components/xiaomi_aqara/binary_sensor.py b/homeassistant/components/xiaomi_aqara/binary_sensor.py
index afffb71ba..7eb72e91e 100644
--- a/homeassistant/components/xiaomi_aqara/binary_sensor.py
+++ b/homeassistant/components/xiaomi_aqara/binary_sensor.py
@@ -2,11 +2,11 @@
 import logging
 
 from homeassistant.components.binary_sensor import BinarySensorDevice
-from homeassistant.components.xiaomi_aqara import (PY_XIAOMI_GATEWAY,
-                                                   XiaomiDevice)
 from homeassistant.core import callback
 from homeassistant.helpers.event import async_call_later
 
+from . import PY_XIAOMI_GATEWAY, XiaomiDevice
+
 _LOGGER = logging.getLogger(__name__)
 
 NO_CLOSE = 'no_close'
diff --git a/homeassistant/components/xiaomi_aqara/cover.py b/homeassistant/components/xiaomi_aqara/cover.py
index ead2c0e92..f4bf1f269 100644
--- a/homeassistant/components/xiaomi_aqara/cover.py
+++ b/homeassistant/components/xiaomi_aqara/cover.py
@@ -1,9 +1,9 @@
 """Support for Xiaomi curtain."""
 import logging
 
-from homeassistant.components.cover import CoverDevice, ATTR_POSITION
-from homeassistant.components.xiaomi_aqara import (PY_XIAOMI_GATEWAY,
-                                                   XiaomiDevice)
+from homeassistant.components.cover import ATTR_POSITION, CoverDevice
+
+from . import PY_XIAOMI_GATEWAY, XiaomiDevice
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/xiaomi_aqara/light.py b/homeassistant/components/xiaomi_aqara/light.py
index 30433ccea..d0fbdea8f 100644
--- a/homeassistant/components/xiaomi_aqara/light.py
+++ b/homeassistant/components/xiaomi_aqara/light.py
@@ -1,14 +1,14 @@
 """Support for Xiaomi Gateway Light."""
+import binascii
 import logging
 import struct
-import binascii
-from homeassistant.components.xiaomi_aqara import (PY_XIAOMI_GATEWAY,
-                                                   XiaomiDevice)
-from homeassistant.components.light import (ATTR_BRIGHTNESS, ATTR_HS_COLOR,
-                                            SUPPORT_BRIGHTNESS,
-                                            SUPPORT_COLOR, Light)
+
+from homeassistant.components.light import (
+    ATTR_BRIGHTNESS, ATTR_HS_COLOR, SUPPORT_BRIGHTNESS, SUPPORT_COLOR, Light)
 import homeassistant.util.color as color_util
 
+from . import PY_XIAOMI_GATEWAY, XiaomiDevice
+
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/homeassistant/components/xiaomi_aqara/lock.py b/homeassistant/components/xiaomi_aqara/lock.py
index f19492664..56d68f38b 100644
--- a/homeassistant/components/xiaomi_aqara/lock.py
+++ b/homeassistant/components/xiaomi_aqara/lock.py
@@ -1,11 +1,12 @@
 """Support for Xiaomi Aqara locks."""
 import logging
-from homeassistant.components.xiaomi_aqara import (PY_XIAOMI_GATEWAY,
-                                                   XiaomiDevice)
+
 from homeassistant.components.lock import LockDevice
-from homeassistant.const import (STATE_LOCKED, STATE_UNLOCKED)
-from homeassistant.helpers.event import async_call_later
+from homeassistant.const import STATE_LOCKED, STATE_UNLOCKED
 from homeassistant.core import callback
+from homeassistant.helpers.event import async_call_later
+
+from . import PY_XIAOMI_GATEWAY, XiaomiDevice
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/xiaomi_aqara/sensor.py b/homeassistant/components/xiaomi_aqara/sensor.py
index 133814e21..c5cc00f14 100644
--- a/homeassistant/components/xiaomi_aqara/sensor.py
+++ b/homeassistant/components/xiaomi_aqara/sensor.py
@@ -1,11 +1,11 @@
 """Support for Xiaomi Aqara sensors."""
 import logging
 
-from homeassistant.components.xiaomi_aqara import (PY_XIAOMI_GATEWAY,
-                                                   XiaomiDevice)
 from homeassistant.const import (
-    DEVICE_CLASS_HUMIDITY, DEVICE_CLASS_ILLUMINANCE, DEVICE_CLASS_TEMPERATURE,
-    TEMP_CELSIUS, DEVICE_CLASS_PRESSURE)
+    DEVICE_CLASS_HUMIDITY, DEVICE_CLASS_ILLUMINANCE, DEVICE_CLASS_PRESSURE,
+    DEVICE_CLASS_TEMPERATURE, TEMP_CELSIUS)
+
+from . import PY_XIAOMI_GATEWAY, XiaomiDevice
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/xiaomi_aqara/switch.py b/homeassistant/components/xiaomi_aqara/switch.py
index c3cde8ede..211f9d127 100644
--- a/homeassistant/components/xiaomi_aqara/switch.py
+++ b/homeassistant/components/xiaomi_aqara/switch.py
@@ -2,8 +2,8 @@
 import logging
 
 from homeassistant.components.switch import SwitchDevice
-from homeassistant.components.xiaomi_aqara import (PY_XIAOMI_GATEWAY,
-                                                   XiaomiDevice)
+
+from . import PY_XIAOMI_GATEWAY, XiaomiDevice
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/xs1/climate.py b/homeassistant/components/xs1/climate.py
index e57976147..080b87c13 100644
--- a/homeassistant/components/xs1/climate.py
+++ b/homeassistant/components/xs1/climate.py
@@ -3,12 +3,11 @@ from functools import partial
 import logging
 
 from homeassistant.components.climate import ClimateDevice
-from homeassistant.components.climate.const import (
-    SUPPORT_TARGET_TEMPERATURE)
-from homeassistant.components.xs1 import (
-    ACTUATORS, DOMAIN as COMPONENT_DOMAIN, SENSORS, XS1DeviceEntity)
+from homeassistant.components.climate.const import SUPPORT_TARGET_TEMPERATURE
 from homeassistant.const import ATTR_TEMPERATURE
 
+from . import ACTUATORS, DOMAIN as COMPONENT_DOMAIN, SENSORS, XS1DeviceEntity
+
 DEPENDENCIES = ['xs1']
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/xs1/sensor.py b/homeassistant/components/xs1/sensor.py
index 9de91a6b0..f5fdcf1fb 100644
--- a/homeassistant/components/xs1/sensor.py
+++ b/homeassistant/components/xs1/sensor.py
@@ -1,10 +1,10 @@
 """Support for XS1 sensors."""
 import logging
 
-from homeassistant.components.xs1 import (
-    ACTUATORS, DOMAIN as COMPONENT_DOMAIN, SENSORS, XS1DeviceEntity)
 from homeassistant.helpers.entity import Entity
 
+from . import ACTUATORS, DOMAIN as COMPONENT_DOMAIN, SENSORS, XS1DeviceEntity
+
 DEPENDENCIES = ['xs1']
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/xs1/switch.py b/homeassistant/components/xs1/switch.py
index 35568587b..d8b344fc7 100644
--- a/homeassistant/components/xs1/switch.py
+++ b/homeassistant/components/xs1/switch.py
@@ -1,10 +1,10 @@
 """Support for XS1 switches."""
 import logging
 
-from homeassistant.components.xs1 import (
-    ACTUATORS, DOMAIN as COMPONENT_DOMAIN, XS1DeviceEntity)
 from homeassistant.helpers.entity import ToggleEntity
 
+from . import ACTUATORS, DOMAIN as COMPONENT_DOMAIN, XS1DeviceEntity
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['xs1']
diff --git a/homeassistant/components/zamg/weather.py b/homeassistant/components/zamg/weather.py
index 01a927afb..bc90a56cc 100644
--- a/homeassistant/components/zamg/weather.py
+++ b/homeassistant/components/zamg/weather.py
@@ -3,9 +3,6 @@ import logging
 
 import voluptuous as vol
 
-# Reuse data and API logic from the sensor implementation
-from homeassistant.components.zamg.sensor import (
-    ATTRIBUTION, CONF_STATION_ID, ZamgData, closest_station, zamg_stations)
 from homeassistant.components.weather import (
     ATTR_WEATHER_HUMIDITY, ATTR_WEATHER_PRESSURE, ATTR_WEATHER_TEMPERATURE,
     ATTR_WEATHER_WIND_BEARING, ATTR_WEATHER_WIND_SPEED, PLATFORM_SCHEMA,
@@ -14,6 +11,10 @@ from homeassistant.const import (
     CONF_LATITUDE, CONF_LONGITUDE, CONF_NAME, TEMP_CELSIUS)
 from homeassistant.helpers import config_validation as cv
 
+# Reuse data and API logic from the sensor implementation
+from .sensor import (
+    ATTRIBUTION, CONF_STATION_ID, ZamgData, closest_station, zamg_stations)
+
 _LOGGER = logging.getLogger(__name__)
 
 PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
diff --git a/homeassistant/components/zigbee/binary_sensor.py b/homeassistant/components/zigbee/binary_sensor.py
index eec1832f0..ccf4e70df 100644
--- a/homeassistant/components/zigbee/binary_sensor.py
+++ b/homeassistant/components/zigbee/binary_sensor.py
@@ -2,8 +2,8 @@
 import voluptuous as vol
 
 from homeassistant.components.binary_sensor import BinarySensorDevice
-from homeassistant.components.zigbee import (
-    ZigBeeDigitalIn, ZigBeeDigitalInConfig, PLATFORM_SCHEMA)
+
+from . import PLATFORM_SCHEMA, ZigBeeDigitalIn, ZigBeeDigitalInConfig
 
 CONF_ON_STATE = 'on_state'
 
diff --git a/homeassistant/components/zigbee/light.py b/homeassistant/components/zigbee/light.py
index e5016900b..b9be0d893 100644
--- a/homeassistant/components/zigbee/light.py
+++ b/homeassistant/components/zigbee/light.py
@@ -2,8 +2,8 @@
 import voluptuous as vol
 
 from homeassistant.components.light import Light
-from homeassistant.components.zigbee import (
-    ZigBeeDigitalOut, ZigBeeDigitalOutConfig, PLATFORM_SCHEMA)
+
+from . import PLATFORM_SCHEMA, ZigBeeDigitalOut, ZigBeeDigitalOutConfig
 
 CONF_ON_STATE = 'on_state'
 
diff --git a/homeassistant/components/zigbee/sensor.py b/homeassistant/components/zigbee/sensor.py
index 48503e396..48301ac97 100644
--- a/homeassistant/components/zigbee/sensor.py
+++ b/homeassistant/components/zigbee/sensor.py
@@ -1,14 +1,15 @@
 """Support for Zigbee sensors."""
-import logging
 from binascii import hexlify
+import logging
 
 import voluptuous as vol
 
 from homeassistant.components import zigbee
-from homeassistant.components.zigbee import PLATFORM_SCHEMA
 from homeassistant.const import TEMP_CELSIUS
 from homeassistant.helpers.entity import Entity
 
+from . import PLATFORM_SCHEMA
+
 _LOGGER = logging.getLogger(__name__)
 
 CONF_TYPE = 'type'
diff --git a/homeassistant/components/zigbee/switch.py b/homeassistant/components/zigbee/switch.py
index ef36e17d7..ddfd47a04 100644
--- a/homeassistant/components/zigbee/switch.py
+++ b/homeassistant/components/zigbee/switch.py
@@ -2,8 +2,8 @@
 import voluptuous as vol
 
 from homeassistant.components.switch import SwitchDevice
-from homeassistant.components.zigbee import (
-    ZigBeeDigitalOut, ZigBeeDigitalOutConfig, PLATFORM_SCHEMA)
+
+from . import PLATFORM_SCHEMA, ZigBeeDigitalOut, ZigBeeDigitalOutConfig
 
 DEPENDENCIES = ['zigbee']
 
diff --git a/homeassistant/components/zoneminder/binary_sensor.py b/homeassistant/components/zoneminder/binary_sensor.py
index f20f09e70..ce59d4573 100644
--- a/homeassistant/components/zoneminder/binary_sensor.py
+++ b/homeassistant/components/zoneminder/binary_sensor.py
@@ -1,7 +1,7 @@
 """Support for ZoneMinder binary sensors."""
 from homeassistant.components.binary_sensor import BinarySensorDevice
 
-from homeassistant.components.zoneminder import DOMAIN as ZONEMINDER_DOMAIN
+from . import DOMAIN as ZONEMINDER_DOMAIN
 
 DEPENDENCIES = ['zoneminder']
 
diff --git a/homeassistant/components/zoneminder/camera.py b/homeassistant/components/zoneminder/camera.py
index f9dd8718b..fe3333fa3 100644
--- a/homeassistant/components/zoneminder/camera.py
+++ b/homeassistant/components/zoneminder/camera.py
@@ -1,10 +1,11 @@
 """Support for ZoneMinder camera streaming."""
 import logging
 
-from homeassistant.const import CONF_NAME, CONF_VERIFY_SSL
 from homeassistant.components.mjpeg.camera import (
     CONF_MJPEG_URL, CONF_STILL_IMAGE_URL, MjpegCamera, filter_urllib3_logging)
-from homeassistant.components.zoneminder import DOMAIN as ZONEMINDER_DOMAIN
+from homeassistant.const import CONF_NAME, CONF_VERIFY_SSL
+
+from . import DOMAIN as ZONEMINDER_DOMAIN
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/homeassistant/components/zoneminder/sensor.py b/homeassistant/components/zoneminder/sensor.py
index 9eb6beb49..e205d9214 100644
--- a/homeassistant/components/zoneminder/sensor.py
+++ b/homeassistant/components/zoneminder/sensor.py
@@ -3,12 +3,13 @@ import logging
 
 import voluptuous as vol
 
-import homeassistant.helpers.config_validation as cv
 from homeassistant.components.sensor import PLATFORM_SCHEMA
-from homeassistant.components.zoneminder import DOMAIN as ZONEMINDER_DOMAIN
 from homeassistant.const import CONF_MONITORED_CONDITIONS
+import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.entity import Entity
 
+from . import DOMAIN as ZONEMINDER_DOMAIN
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['zoneminder']
diff --git a/homeassistant/components/zoneminder/switch.py b/homeassistant/components/zoneminder/switch.py
index b411a148d..78e72c5fd 100644
--- a/homeassistant/components/zoneminder/switch.py
+++ b/homeassistant/components/zoneminder/switch.py
@@ -3,11 +3,12 @@ import logging
 
 import voluptuous as vol
 
-from homeassistant.components.switch import (SwitchDevice, PLATFORM_SCHEMA)
-from homeassistant.components.zoneminder import DOMAIN as ZONEMINDER_DOMAIN
-from homeassistant.const import (CONF_COMMAND_ON, CONF_COMMAND_OFF)
+from homeassistant.components.switch import PLATFORM_SCHEMA, SwitchDevice
+from homeassistant.const import CONF_COMMAND_OFF, CONF_COMMAND_ON
 import homeassistant.helpers.config_validation as cv
 
+from . import DOMAIN as ZONEMINDER_DOMAIN
+
 _LOGGER = logging.getLogger(__name__)
 
 DEPENDENCIES = ['zoneminder']