Re: [I] [Packaging][Python] Add support for Python 3.15 [arrow]

["raulcd (via GitHub)" <gi...@apache.org>]

raulcd commented on issue #50091:
URL: https://github.com/apache/arrow/issues/50091#issuecomment-4620455124

   I've been able to validate that on top of the following PR:
   - https://github.com/apache/arrow/pull/50082
   
   I can build a wheel for Python 3.15 on manylinux and run import and run all tests successfully with:
   ```
   $ ARCHERY_DEBUG=1 ARCH=amd64 PYTHON=3.15 PYTHON_ABI_TAG=cp315 PYTHON_IMAGE_TAG=3.15 archery docker run -e SETUPTOOLS_SCM_PRETEND_VERSION=24.0.0.dev164 python-wheel-manylinux-2-28
   ...
   INFO:auditwheel.wheeltools:New WHEEL info tags: cp315-cp315-manylinux_2_28_x86_64
   INFO:auditwheel.main_repair:
   Fixed-up wheel written to /arrow/python/repaired_wheels/pyarrow-24.0.0.dev164-cp315-cp315-manylinux_2_28_x86_64.whl
   + popd
   /
   
   
   $ ARCHERY_DEBUG=1 ARCH=amd64 PYTHON=3.15 PYTHON_ABI_TAG=cp315 PYTHON_IMAGE_TAG=3.15-rc archery docker run python-wheel-manylinux-test-unittests
   ...
   SKIPPED [1] usr/local/lib/python3.15/site-packages/pyarrow/tests/test_util.py:215: Timezone database is already provided.
   SKIPPED [3] usr/local/lib/python3.15/site-packages/pyarrow/tests/conftest.py:99: nonumpy NOT enabled
   ================================================================= 7550 passed, 666 skipped, 15 xfailed, 2 xpassed, 12 warnings in 134.58s (0:02:14) ==================================================================
   
   ```
   
   The only thing that was blocking and I had to manually remove from our build process is libcst and the type stubs as there's now wheel built for libcst and I wasn't able to build one due to PyO3 check for unsupported cp315.


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