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233 lines
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10 KiB
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<head>
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<meta charset="utf-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
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<title>Loading your components - Home Assistant</title>
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<meta name="author" content="Home Assistant">
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<meta name="description" content="Instructions how to get your component loaded by Home Assistant.">
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<meta name="viewport" content="width=device-width">
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<link rel="canonical" href="https://home-assistant.io/developers/component_loading/">
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<meta property="og:title" content="Loading your components">
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<meta name="twitter:description" content="Instructions how to get your component loaded by Home Assistant.">
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<header>
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<div class="grid-wrapper">
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<div class="grid">
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<div class="grid__item three-tenths lap-two-sixths palm-one-whole ha-title">
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<a href="/" class="site-title">
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<img width='40' src='/demo/favicon-192x192.png'>
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<span>Home Assistant</span>
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<div class="grid__item seven-tenths lap-four-sixths palm-one-whole">
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<input type="checkbox" id="toggle">
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<label for="toggle" class="toggle" data-open="Main Menu" data-close="Close Menu"></label>
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<ul class="menu pull-right">
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<li><a href="/getting-started/">Getting started</a></li>
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<li><a href="/components/">Components</a></li>
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<li><a href="/ecosystem/">Ecosystem</a></li>
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<li><a href="/cookbook/">Examples</a></li>
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<li><a href="/developers/">Developers</a></li>
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<li><a href="/blog/">Blog</a></li>
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<li><a href="/help/">Need help?</a></li>
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<div class="grid grid-center">
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<div class="grid__item two-thirds lap-one-whole palm-one-whole">
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<article class="page">
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<header>
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<h1 class="title indent">
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Loading Your Components
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</h1>
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</header>
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<hr class="divider">
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<p>A component will be loaded on start if a section (ie. <code class="highlighter-rouge">light:</code>) for it exists in the config file. A component can also be loaded if another component is loaded that depends on it. When loading a component Home Assistant will check the following paths:</p>
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<ul>
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<li><code class="highlighter-rouge"><config directory>/custom_components/<component name></code></li>
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<li><code class="highlighter-rouge">homeassistant/components/<component name></code> (built-in components)</li>
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</ul>
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<p>Once loaded, a component will only be setup if all dependencies can be loaded and are able to setup. Keep an eye on the logs to see if your component could be loaded and initialized.</p>
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<p class="note warning">
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You can override a built-in component by having a component with the same name in your <code>config/custom_components</code> folder. If the build-in component is inside a subfolder, take care to place your customization in a folder with the same name in <code>config/custom_components/*folder*</code>. Note that overriding build-in components is not recommended and will probably break things!
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</p>
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<p class="note">
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Home Assistant will use the directory that contains your config file as the directory that holds your customizations. By default this is the <code>config</code> folder in your current work directory. You can use a different folder by running Home Assistant with the –config argument: <code>python3 homeassistant --config /YOUR/CONFIG/PATH/</code>.
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</p>
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</article>
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</div>
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<aside id="sidebar" class="grid__item one-third lap-one-whole palm-one-whole">
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<div class="grid">
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<section class="aside-module grid__item one-whole lap-one-half">
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<div class='edit-github'><a href='https://github.com/home-assistant/home-assistant.github.io/tree/current/source/developers/component_loading.markdown'>Edit this page on GitHub</a></div>
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<div class='section'>
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<h1 class="title delta">Development Guide</h1>
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<ul class='divided sidebar-menu'>
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<li>
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<a href='/developers/'>Introduction </a>
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<ul>
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<li><a href='/developers/architecture/'>Architecture </a></li>
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<li><a href='/developers/architecture_components/'>Components </a></li>
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</ul>
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</li>
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<li>
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<a href='/developers/development/'>Starting with Development </a>
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<ul>
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<li><a href='/developers/development_environment/'>Setting up Environment </a></li>
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<li><a href='/developers/development_submitting/'>Submit your Work </a></li>
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<li><a href='/developers/development_checklist/'>Checklist </a></li>
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<li><a href='/developers/development_testing/'>Testing </a></li>
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<li><a href='/developers/development_catching_up/'>Catching up with Reality </a></li>
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<li><a href='/developers/development_validation/'>Validation </a></li>
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</ul>
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</li>
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<li>
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<a href='/developers/add_new_platform/'>Support a new device (as a platform) </a>
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<ul>
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<li><a href='/developers/platform_example_sensor/'>Example sensor platform </a></li>
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<li><a href='/developers/platform_example_light/'>Example light platform </a></li>
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</ul>
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</li>
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<li>
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<a href='/developers/creating_components/'>Adding a new component </a>
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<ul>
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<li><a class='active' href='/developers/component_loading/'>Loading components </a></li>
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<li><a href='/developers/component_deps_and_reqs/'>Requirements & Dependencies </a></li>
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<li><a href='/developers/component_initialization/'>Initialization </a></li>
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<li><a href='/developers/component_events/'>Handling events </a></li>
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<li><a href='/developers/component_states/'>States </a></li>
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<li><a href='/developers/component_visibility/'>Visibility </a></li>
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<li><a href='/developers/component_generic_discovery/'>Loading Platforms </a></li>
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<li><a href='/developers/component_discovery/'>Component Discovery </a></li>
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</ul>
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</li>
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<li>
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<a href='/developers/asyncio/'>Asynchronous Programming </a>
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<ul>
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<li><a href='/developers/asyncio_categorizing_functions/'>Categorizing Functions </a></li>
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<li><a href='/developers/asyncio_working_with_async/'>Working with Async </a></li>
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<li><a href='/developers/asyncio_misc/'>Miscellaneous </a></li>
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</ul>
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</li>
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<li>
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<a href='/developers/frontend/'>Frontend Development </a>
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<ul>
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<li><a href='/developers/frontend_add_card/'>Add State Card </a></li>
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<li><a href='/developers/frontend_add_more_info/'>Add More Info Dialog </a></li>
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<li><a href='/developers/frontend_creating_custom_panels/'>Add Custom Panels </a></li>
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</ul>
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</li>
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<li>
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API
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<ul>
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<li><a href='https://dev-docs.home-assistant.io/en/dev/'>Home Assistant API </a></li>
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<li><a href='/developers/websocket_api/'>Websocket API </a></li>
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<li><a href='/developers/rest_api/'>RESTful API </a></li>
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<li><a href='/developers/python_api/'>Python API </a></li>
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<li><a href='/developers/server_sent_events/'>Server-sent events </a></li>
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</ul>
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</li>
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<li><a href='/developers/helpers/'>Online helpers </a></li>
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<li><a href='/developers/multiple_instances/'>Multiple Instances </a></li>
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<li><a href='/developers/website/'>Home-Assistant.io </a></li>
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<li><a href='/developers/credits/'>Credits </a></li>
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<li><a href='/developers/releasing/'>Releasing </a></li>
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</ul>
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</div>
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</section>
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</div>
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</aside>
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</div>
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</div>
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<footer>
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<div class="grid-wrapper">
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<div class="grid">
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<div class="grid__item">
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<div class="copyright">
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<a rel="me" href='https://github.com/home-assistant/home-assistant'><i class="icon-github"></i></a>
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<div class="credit">
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Contact us at <a href='mailto:hello@home-assistant.io'>hello@home-assistant.io</a>.<br>
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