[Python][Packaging] Missing license files in 23.0.0 wheels

[radoering]

Describe the bug, including details regarding any error messages, version, and platform.

The license files are missing in the 23.0.0 wheels on PyPI. (In the 22.0.0 wheels, there was a licenses directory in the .dist-info folder.)

This issue is probably caused by #47141 where a special handling for sdist creation was implemented but wheels were forgotten.

Component(s)

Python, Packaging

[raulcd]

Thanks for raising the issue. I've validated those are indeed missing from wheels at least I've checked those two from PyPI:

• pyarrow-23.0.0-cp314-cp314-manylinux_2_28_x86_64.whl
• pyarrow-23.0.0-cp314-cp314-win_amd64.whl

I've validated they are present on the source distribution (pyarrow-23.0.0.tar.gz).

Apart from fixing this we should add a validation step on our wheels test to validate both LICENSE.txt and NOTICE.txt are present on the built wheels so we don't miss them anymore.

[raulcd]

Issue resolved by pull request 48988
#48988

[raulcd]

The underlying issue has been resolved with the merged commit. Once a release has been published on PyPI there's no way of resubmitting it due to immutability and anti-tampering requirements. I've added the backport-candidate label so we can cherry-pick this if we do a patch or minor release before 24.0.0.