Request: add type hints and `py.typed` for type checkers and tab complete

[jamesbraza]

With plotly==5.24.1, running mypy==1.13.0 on a module importing plotly:

error: Cannot find implementation or library stub for module named "plotly.express" [import-not-found]
    import plotly.express as px
    ^

The request is can plotly add type hints, and a py.typed so type checkers can use them?

[gvwilson]

Hi @jamesbraza - we have no plans to do this in the near future (lack of resources) but a community PR would be reviewed very quickly if you'd like to tackle it.

[Caelmap]

Maybe I have not understood something, but isn't pull request #4424 all that is needed to solve this? It would just need approving and adding to a release?

Locally, even just adding an empty py.typed file in the plotly parent folder of my .venv (which is basically what that request does), makes plotly a far nicer dev experience with mypy.

[jamesbraza]

Hi @Caelmap yes you're right, that PR alone will resolve this

[gvwilson]

thanks for the discussion everyone - I'll see if we can get this on the roadmap for immediately after the upcoming release.

[ClaasRostock]

I have created a first version of a type stub package for plotly.
GitHub: plotly-stubs
PyPI: plotly-stubs