Building integrations - command fails without first installing requirements

[chelming]

When following the Building Integrations guide in VSC dev container, when running python3 -m script.scaffold integration and following the prompt, script.hassfest will run following the completion. If you don't first install the requirements, script.hassfest will fail with
script.hassfest ModuleNotFoundError: No module named 'numpy'

I'm guessing there should be instructions for running pip install -r requirements_all.txt (or one of the other requirements files. I'm not familiar enough to say which is appropriate.

developers.home-assistant/docs/creating_component_index.md

Lines 5 to 9 in 6d6ec9d

	Alright, so it's time to write your first code for your integration. AWESOME. Don't worry, we've tried hard to keep it as easy as possible. From a Home Assistant development environment, type the following and follow the instructions:
	```shell
	python3 -m script.scaffold integration
	```

[allenporter]

My impression is that this is handled if you follow the steps in *Development Workflow > Set up development environment

• e.g. https://developers.home-assistant.io/docs/development_environment#setup-local-repository and this command is handled by script/setup. I think the documentation assumes that you can only do these commands once the development environment is properly setup which seems reasonable to me.

[allenporter]

You mentioned using the devcontainer... so if the devcontainer is not properly being setup right then i think any fixes need to be part of the devcontainer setup to handles this up front? or updating the devcontainer docmentation under "Set up development environment" and not specific to the building integration step

[chelming]

Good call! I didn't think of the other build types and that it might happen in one of the other build setups. Instead of a docs issue is this potentially a core/dev container issue?

[allenporter]

Perhaps? My assumption is that the devcontainer should be doing this but this is not something i am an expert in.