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Use init_subclass for Config Entries #26059

merged 2 commits into from Aug 20, 2019


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commented Aug 19, 2019


I learned something new today and it looks like it can make our code slightly more readable.

I learned about init_subclass, a callback called when a class is inherited:

This callback can receive keyword arguments by passing them to the inheritance part. This allows us to register config flows without decorating them!

class MetFlowHandler(config_entries.ConfigFlow, domain=DOMAIN):

For this PR I updated Hue and Met to use this new approach.

Docs: home-assistant/developers.home-assistant#305


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@balloob balloob requested review from Danielhiversen and home-assistant/core as code owners Aug 19, 2019

@project-bot project-bot bot added this to Needs review in Dev Aug 19, 2019

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Dev automation moved this from Needs review to Reviewer approved Aug 19, 2019

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Looks good to me!

@balloob balloob referenced this pull request Aug 20, 2019

@balloob balloob merged commit cf2d927 into dev Aug 20, 2019

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Dev automation moved this from Reviewer approved to Done Aug 20, 2019

@delete-merged-branch delete-merged-branch bot deleted the config-entries-init-subclass branch Aug 20, 2019

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