GH-45867: [Python] Fix `SetuptoolsDeprecationWarning` #47141

paddyroddy · 2025-07-20T08:33:33Z

Rationale for this change

When building locally, I get many errors along the lines of

Please ensure the files specified are contained by the root
of the Python package (normally marked by `pyproject.toml`).

By 2026-Mar-20, you need to update your project and remove deprecated calls
or your builds will no longer be supported.

See https://packaging.python.org/en/latest/specifications/glob-patterns/ for details.

What changes are included in this PR?

Make the licence SPDX compliant
Remove the licence classifier
Move the licence files from setup.cfg to pyproject.toml
Fix the disallowed glob patterns via symlinks
Bumped the minimum version of setuptools due to macOS CI failures (don't know why this happened, caching maybe?)

I appreciate the symlink change might prove controversial. See discussions in #45867, fixes #45867.

Are these changes tested?

When I rebuild locally, I get no errors any more.

Are there any user-facing changes?

Yes. The minimum required version of setuptools is now 77. However, this is available on >=3.9 so won't affect anyone really.

GitHub Issue: [CI][Python] A new version (77.0.2) of setuptools seems to have broken some of our builds #45867

github-actions · 2025-07-20T08:33:57Z

⚠️ GitHub issue #45867 has been automatically assigned in GitHub to PR creator.

github-actions · 2025-07-20T09:33:40Z

⚠️ GitHub issue #45867 has been automatically assigned in GitHub to PR creator.

rok · 2025-07-20T10:03:57Z

python/pyproject.toml

    # versions released after 2022
    "setuptools_scm[toml]>=8",
-    "setuptools>=64",
+    "setuptools>=77",


This is required due to setuptools<77 not recognizing the new license strings proposed in this PR (see pypa/setuptools#4903 for explanation). I'm not sure if this is controversial so bringing it up here. @raulcd

rok · 2025-07-20T10:22:54Z

@github-actions crossbow submit

github-actions · 2025-07-20T10:24:00Z

no tasks were provided for the job
The Archery job run can be found at: https://github.com/apache/arrow/actions/runs/16398862798

raulcd · 2025-07-20T10:25:16Z

@github-actions crossbow submit -g python -g wheels

github-actions · 2025-07-20T10:26:23Z

Invalid group(s) {'wheels'}. Must be one of {'example-cpp', 'python', 'nightly-release', 'cpp', 'verify-rc-source-macos', 'wheel', 'test', 'verify-rc-source', 'cuda', 'vcpkg', 'linux-amd64', 'conan', 'r', 'nightly', 'ruby', 'linux', 'c-glib', 'linux-arm64', 'verify-rc-source-linux', 'example', 'packaging', 'integration', 'example-python', 'fuzz', 'nightly-tests', 'verify-rc', 'homebrew', 'nightly-packaging'}
The Archery job run can be found at: https://github.com/apache/arrow/actions/runs/16398880949

raulcd · 2025-07-20T10:27:28Z

@github-actions crossbow submit -g python

github-actions · 2025-07-20T10:29:58Z

Revision: 6b1a08b

Submitted crossbow builds: ursacomputing/crossbow @ actions-2fdf3226a1

Task	Status
example-python-minimal-build-fedora-conda
example-python-minimal-build-ubuntu-venv
test-conda-python-3.10
test-conda-python-3.10-hdfs-2.9.2
test-conda-python-3.10-hdfs-3.2.1
test-conda-python-3.10-pandas-latest-numpy-latest
test-conda-python-3.11
test-conda-python-3.11-dask-latest
test-conda-python-3.11-dask-upstream_devel
test-conda-python-3.11-hypothesis
test-conda-python-3.11-pandas-latest-numpy-1.26
test-conda-python-3.11-pandas-latest-numpy-latest
test-conda-python-3.11-pandas-nightly-numpy-nightly
test-conda-python-3.11-pandas-upstream_devel-numpy-nightly
test-conda-python-3.11-spark-master
test-conda-python-3.12
test-conda-python-3.12-cpython-debug
test-conda-python-3.13
test-conda-python-3.9
test-conda-python-3.9-pandas-1.1.3-numpy-1.19.5
test-conda-python-emscripten
test-cuda-python-ubuntu-22.04-cuda-11.7.1
test-debian-12-python-3-amd64
test-debian-12-python-3-i386
test-fedora-42-python-3
test-ubuntu-22.04-python-3
test-ubuntu-22.04-python-313-freethreading
test-ubuntu-24.04-python-3

kou · 2025-07-20T11:31:45Z

python/LICENSE.txt

Does symbolic link work on Windows...?

Good point. I guess there's no other way to fix it then other than copying or creating new licence and notice files.

Have copied over the files for the tests @rok

Per https://gitforwindows.org/symbolic-links.html:

Short version: there is no exact equivalent for POSIX symlinks on Windows, and the closest thing is unavailable for non-admins by default unless Developer Mode is enabled and a relatively recent Windows 10 version is used. Therefore, symlink emulation support is only turned on by default when that scenario is detected. Support can be enabled by the user, via the core.symlinks=true config setting.

Windows 10 reached EOL last month, and supposedly Developer Mode is required for Visual Studio use.

I'm not sure of all the Windows workflows that may / may not require developer mode, but maybe its worth just requiring it for any Windows devs of PyArrow so that symlinks can be used?

kou · 2025-07-20T11:32:51Z

@github-actions crossbow submit -g wheel

github-actions · 2025-07-20T11:34:05Z

⚠️ GitHub issue #45867 has been automatically assigned in GitHub to PR creator.

github-actions · 2025-07-20T11:36:02Z

Revision: 6b1a08b

Submitted crossbow builds: ursacomputing/crossbow @ actions-fe79dfe84b

Task	Status
python-sdist
wheel-macos-monterey-cp310-cp310-amd64
wheel-macos-monterey-cp310-cp310-arm64
wheel-macos-monterey-cp311-cp311-amd64
wheel-macos-monterey-cp311-cp311-arm64
wheel-macos-monterey-cp312-cp312-amd64
wheel-macos-monterey-cp312-cp312-arm64
wheel-macos-monterey-cp313-cp313-amd64
wheel-macos-monterey-cp313-cp313-arm64
wheel-macos-monterey-cp313-cp313t-amd64
wheel-macos-monterey-cp313-cp313t-arm64
wheel-macos-monterey-cp39-cp39-amd64
wheel-macos-monterey-cp39-cp39-arm64
wheel-manylinux-2-28-cp310-cp310-amd64
wheel-manylinux-2-28-cp310-cp310-arm64
wheel-manylinux-2-28-cp311-cp311-amd64
wheel-manylinux-2-28-cp311-cp311-arm64
wheel-manylinux-2-28-cp312-cp312-amd64
wheel-manylinux-2-28-cp312-cp312-arm64
wheel-manylinux-2-28-cp313-cp313-amd64
wheel-manylinux-2-28-cp313-cp313-arm64
wheel-manylinux-2-28-cp313-cp313t-amd64
wheel-manylinux-2-28-cp313-cp313t-arm64
wheel-manylinux-2-28-cp39-cp39-amd64
wheel-manylinux-2-28-cp39-cp39-arm64
wheel-musllinux-1-2-cp310-cp310-amd64
wheel-musllinux-1-2-cp310-cp310-arm64
wheel-musllinux-1-2-cp311-cp311-amd64
wheel-musllinux-1-2-cp311-cp311-arm64
wheel-musllinux-1-2-cp312-cp312-amd64
wheel-musllinux-1-2-cp312-cp312-arm64
wheel-musllinux-1-2-cp313-cp313-amd64
wheel-musllinux-1-2-cp313-cp313-arm64
wheel-musllinux-1-2-cp313-cp313t-amd64
wheel-musllinux-1-2-cp313-cp313t-arm64
wheel-musllinux-1-2-cp39-cp39-amd64
wheel-musllinux-1-2-cp39-cp39-arm64
wheel-windows-cp310-cp310-amd64
wheel-windows-cp311-cp311-amd64
wheel-windows-cp312-cp312-amd64
wheel-windows-cp313-cp313-amd64
wheel-windows-cp313-cp313t-amd64
wheel-windows-cp39-cp39-amd64

paddyroddy · 2025-11-27T16:56:12Z

Sorry, I'm struggling to find time to look into the SDist if anyone else could have a look

…ptools-deprecation

rok · 2025-12-16T13:04:13Z

The macOS segfaults are expected and unrelated.

python/setup.py

rok

This looks pretty good to me! @raulcd

python/setup.py

python/.gitignore

pitrou · 2025-12-18T10:04:29Z

@github-actions crossbow submit -g python

pitrou · 2025-12-18T10:04:38Z

@github-actions crossbow submit wheelcp313*

github-actions · 2025-12-18T10:07:13Z

Revision: e47ca7c

Submitted crossbow builds: ursacomputing/crossbow @ actions-1176ee40f3

Task	Status
wheel-macos-monterey-cp313-cp313-amd64
wheel-macos-monterey-cp313-cp313-arm64
wheel-macos-monterey-cp313-cp313t-amd64
wheel-macos-monterey-cp313-cp313t-arm64
wheel-manylinux-2-28-cp313-cp313-amd64
wheel-manylinux-2-28-cp313-cp313-arm64
wheel-manylinux-2-28-cp313-cp313t-amd64
wheel-manylinux-2-28-cp313-cp313t-arm64
wheel-musllinux-1-2-cp313-cp313-amd64
wheel-musllinux-1-2-cp313-cp313-arm64
wheel-musllinux-1-2-cp313-cp313t-amd64
wheel-musllinux-1-2-cp313-cp313t-arm64
wheel-windows-cp313-cp313-amd64
wheel-windows-cp313-cp313t-amd64

github-actions · 2025-12-18T10:07:26Z

Revision: e47ca7c

Submitted crossbow builds: ursacomputing/crossbow @ actions-8124fa0f6c

Task	Status
example-python-minimal-build-fedora-conda
example-python-minimal-build-ubuntu-venv
test-conda-python-3.10
test-conda-python-3.10-hdfs-2.9.2
test-conda-python-3.10-hdfs-3.2.1
test-conda-python-3.10-pandas-1.3.4-numpy-1.21.2
test-conda-python-3.11
test-conda-python-3.11-dask-latest
test-conda-python-3.11-dask-upstream_devel
test-conda-python-3.11-hypothesis
test-conda-python-3.11-pandas-latest-numpy-latest
test-conda-python-3.11-spark-master
test-conda-python-3.12
test-conda-python-3.12-cpython-debug
test-conda-python-3.12-pandas-latest-numpy-1.26
test-conda-python-3.12-pandas-latest-numpy-latest
test-conda-python-3.13
test-conda-python-3.13-pandas-nightly-numpy-nightly
test-conda-python-3.13-pandas-upstream_devel-numpy-nightly
test-conda-python-3.14
test-conda-python-emscripten
test-cuda-python-ubuntu-22.04-cuda-11.7.1
test-cuda-python-ubuntu-24.04-cuda-13.0.2
test-debian-12-python-3-amd64
test-debian-12-python-3-i386
test-fedora-42-python-3
test-ubuntu-22.04-python-3
test-ubuntu-22.04-python-313-freethreading
test-ubuntu-24.04-python-3

pitrou · 2025-12-18T11:29:15Z

CI failures are unrelated, thanks a lot @paddyroddy !

pitrou · 2025-12-18T11:29:50Z

@github-actions crossbow submit python-sdist

github-actions · 2025-12-18T11:32:05Z

Revision: e47ca7c

Submitted crossbow builds: ursacomputing/crossbow @ actions-b1e74a8dee

Task	Status
python-sdist

conbench-apache-arrow · 2025-12-24T22:51:58Z

After merging your PR, Conbench analyzed the 2 benchmarking runs that have been run so far on merge-commit 866502e.

There were no benchmark performance regressions. 🎉

The full Conbench report has more details. It also includes information about 1 possible false positive for unstable benchmarks that are known to sometimes produce them.

paddyroddy added 4 commits July 20, 2025 10:23

Make licence SPDX compliant

0216dd7

Licence classifiers are deprecated

7b5fcce

Move license-files to pyproject.toml

5fc3f18

.. isn't valid so create symlinks and point to them

4be7410

paddyroddy requested review from AlenkaF, raulcd and rok as code owners July 20, 2025 08:33

github-actions bot added Component: Python awaiting review Awaiting review labels Jul 20, 2025

Set minimum setuptools as 77

6b1a08b

paddyroddy requested review from assignUser, jonkeane and kou as code owners July 20, 2025 09:20

rok reviewed Jul 20, 2025

View reviewed changes

github-actions bot added awaiting changes Awaiting changes and removed awaiting review Awaiting review labels Jul 20, 2025

kou reviewed Jul 20, 2025

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kou changed the title ~~GH-45867: [PYTHON] Fix SetuptoolsDeprecationWarning~~ GH-45867: [Python] Fix SetuptoolsDeprecationWarning Jul 20, 2025

Copy over text files instead

df371b1

WillAyd mentioned this pull request Nov 21, 2025

GH-36411: [C++][Python] Use meson-python for PyArrow build system #45854

Open

paddyroddy added 4 commits December 16, 2025 11:55

Merge remote-tracking branch 'upstream/main' into paddyroddy/fix-setu…

484af18

…ptools-deprecation

Create SDist files

04f2b1b

Add to gitignore

8477a23

Fix linting

e392cbe

pitrou reviewed Dec 16, 2025

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paddyroddy added 2 commits December 16, 2025 13:49

Change to warning

5930c76

Merge branch 'main' into paddyroddy/fix-setuptools-deprecation

ba20e2d

rok reviewed Dec 16, 2025

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github-actions bot added awaiting changes Awaiting changes and removed awaiting change review Awaiting change review labels Dec 16, 2025

rok requested a review from pitrou December 17, 2025 22:54

pitrou requested changes Dec 18, 2025

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github-actions bot added awaiting change review Awaiting change review and removed awaiting changes Awaiting changes labels Dec 18, 2025

pitrou approved these changes Dec 18, 2025

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pitrou merged commit 866502e into apache:main Dec 18, 2025
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pitrou removed the awaiting change review Awaiting change review label Dec 18, 2025

pitrou mentioned this pull request Dec 18, 2025

[CI][Python] A new version (77.0.2) of setuptools seems to have broken some of our builds #45867

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GH-45867: [Python] Fix SetuptoolsDeprecationWarning #47141

GH-45867: [Python] Fix SetuptoolsDeprecationWarning #47141

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GH-45867: [Python] Fix `SetuptoolsDeprecationWarning` #47141

GH-45867: [Python] Fix `SetuptoolsDeprecationWarning` #47141

paddyroddy commented Jul 20, 2025 •

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