Smooth IDE support for python_rules

[RmStorm]

🚀 feature request

Description

I would like smooth editor support of the python_rules. Now when I open an editor (tried helix and vscode) neither recognizes any of the third party imports properly breaking autocomplete and type checking.

Describe the solution you'd like

Something like what the rules_go people have done but I imagine that pyright (the most commonly used python language server) does not have support for something similar to the gopackagedriver.. So I was thinking more along the lines of a shell script that manipulates PATH and PYTHONPATH to achieve something similar. still hacky but better than what I have now. It's also something that would work for other python language server's such as ruff-lsp.

Describe alternatives you've considered

Manually make a venv with the same dependencies and activate that before starting my editor. Works fine but it's hackish and it won't work for generated code. For example python files generated from protobuf by Bazel..

[aignas]

Note, that pyright is a static type checker https://github.com/microsoft/pyright. Pylense is a closed-source LSP that is only available within VSCode.

For now you could use https://github.com/cedarai/rules_pyvenv to create a virtual environment for a target, that provides good editor integration. That may work with generated code.

[alexeagle]

https://github.com/aspect-build/rules_py has the explicit goal of providing excellent Python IDE support for py_* rules.

[github-actions]

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