Add docstrings, fix typos, and update docsstring for PEP257

homeassistant/components/binary_sensor/command_sensor.py

@@ -1,8 +1,6 @@
 """
-homeassistant.components.binary_sensor.command_sensor
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-Allows to configure custom shell commands to turn a value
-into a logical value for a binary sensor.
+Allows to configure custom shell commands to turn a value into a logical value
+for a binary sensor.
 
 For more details about this platform, please refer to the documentation at
 https://home-assistant.io/components/binary_sensor.command/
@@ -27,8 +25,7 @@ MIN_TIME_BETWEEN_UPDATES = timedelta(seconds=60)
 
 # pylint: disable=unused-argument
 def setup_platform(hass, config, add_devices, discovery_info=None):
-    """ Add the Command Sensor. """
-
+    """Add the Command Sensor."""
     if config.get('command') is None:
         _LOGGER.error('Missing required variable: "command"')
         return False
@@ -47,8 +44,9 @@ def setup_platform(hass, config, add_devices, discovery_info=None):
 
 # pylint: disable=too-many-arguments
 class CommandBinarySensor(BinarySensorDevice):
-    """ Represents a binary sensor that is returning
-    a value of a shell commands. """
+    """
+    Represents a binary sensor that is returning a value of a shell commands.
+    """
     def __init__(self, hass, data, name, payload_on,
                  payload_off, value_template):
         self._hass = hass
@@ -62,16 +60,16 @@ class CommandBinarySensor(BinarySensorDevice):
 
     @property
     def name(self):
-        """ The name of the sensor. """
+        """The name of the sensor."""
         return self._name
 
     @property
     def is_on(self):
-        """ True if the binary sensor is on. """
+        """True if the binary sensor is on."""
         return self._state
 
     def update(self):
-        """ Gets the latest data and updates the state. """
+        """Gets the latest data and updates the state."""
         self.data.update()
         value = self.data.value