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python3-Cython: update to 3.1.2. #56388

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python3-Cython: update to 3.1.2. #56388

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@ahesford ahesford commented Jul 21, 2025 •
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The following packages currently fail to build with the new Cython:

  • libplist
  • pyliblo
  • python3-PyOpenGL-accelerate
  • python3-SQLAlchemy2
  • python3-cypari2
  • python3-dbus-fast
  • python3-fpylll
  • python3-lxml
  • python3-pandas-msgpack
  • python3-peewee
  • python3-rencode
  • python3-shapely
  • sagemath
  • urh
  • wxPython

@ahesford ahesford marked this pull request as draft July 21, 2025 14:00
@Rutpiv Rutpiv mentioned this pull request Jul 25, 2025
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Rutpiv commented Jul 25, 2025

Regarding the pyliblo build failure with the new Cython version:

I’ve submitted a PR that removes pyliblo, introduces pyliblo3 (with a patch for Cython compatibility), and updates Carla to use pyliblo3 by applying the upstream patch — since Carla hasn’t made a new release with that support yet.

This was previously discussed here: void-linux/void-packages#52860 (comment). At the time, switching to pyliblo3 was rejected due to:

  • Lack of version tags and PyPI releases,
  • And the fact that Carla had not yet adopted it.

Since then:

  • I contacted the pyliblo3 developer, who added proper Git tags and released versions on PyPI (issue #14).
  • Carla upstream merged support for pyliblo3: Carla PR #1933, and I have applied that patch.
  • pyliblo3 itself doesn’t fully support the latest Cython yet, but there's a pending fix: PR #15, which I also applied.

Since Carla is the only package depending on pyliblo, and it now works with a patched pyliblo3, we can remove pyliblo and restore compatibility with the current Cython version in the process.

@ahesford ahesford force-pushed the cython branch 7 times, most recently from bbb401e to 0974e61 Compare July 29, 2025 14:49
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@tornaria It seems sagemath and the updated python3-cypari2 and python3-fpylll build with this Cython update. Are you aware of any show-stopping issues here?

ahesford added 14 commits July 30, 2025 11:17
@ahesford ahesford marked this pull request as ready for review July 31, 2025 04:19
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@ahesford @Rutpiv