davidcavazos opened a new issue, #27906: URL: https://github.com/apache/beam/issues/27906
### What would you like to happen? Support running `mypy` on my own Beam pipeline code by adding type stubs. Simply importing `apache_beam` fails with `mypy`. ```py #-- main.py import apache_beam as beam ``` Install and run `mypy`. ```sh pip install mypy apache-beam mypy main.py ``` Gives the following output: ``` main.py:1: error: Skipping analyzing "apache_beam": module is installed, but missing library stubs or py.typed marker [import] main.py:1: note: See https://mypy.readthedocs.io/en/stable/running_mypy.html#missing-imports Found 1 error in 1 file (checked 1 source file) ``` They can be [automatically generated with `stubgen`](https://mypy.readthedocs.io/en/stable/stubgen.html), it would be nice to make that part of the release process on each new version. Since Beam already has type hints, I don't think the generated types would need any tweaking. ### Issue Priority Priority: 2 (default / most feature requests should be filed as P2) ### Issue Components - [X] Component: Python SDK - [ ] Component: Java SDK - [ ] Component: Go SDK - [ ] Component: Typescript SDK - [ ] Component: IO connector - [ ] Component: Beam examples - [ ] Component: Beam playground - [ ] Component: Beam katas - [ ] Component: Website - [ ] Component: Spark Runner - [ ] Component: Flink Runner - [ ] Component: Samza Runner - [ ] Component: Twister2 Runner - [ ] Component: Hazelcast Jet Runner - [ ] Component: Google Cloud Dataflow Runner -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
