python-devel July 2026

python-devel@lists.fedoraproject.org

3 participants
3 discussions

%pyproject_patch_dependency macro now available (provisional)
by Charalampos Stratakis 14 Aug '26

14 Aug '26

Hello folks, Tired of figuring out the right sed or patch to modify dependency constraints in your Python packages? Or having your carefully crafted regex break because upstream reformatted their metadata? %pyproject_patch_dependency is here to help. A new macro has been merged into pyproject-rpm-macros and is available in Rawhide, F44 and F43 as a provisional feature. It provides a uniform way to override upstream dependency constraints in %prep, regardless of the build backend. It affects both BuildRequires and runtime Requires. Example usage: %prep %autosetup -p1 %pyproject_patch_dependency cython:drop_upper %pyproject_patch_dependency numpy:set_upper:3.0 %pyproject_patch_dependency legacy-dep:ignore It also handles circular/sibling dependencies in multi-wheel specs via the br_only suffix. A sibling package can be ignored in BuildRequires (since it's not yet installed during build) while keeping it as a runtime Requires: %pyproject_patch_dependency sibling-package:ignore:br_only The feature is marked provisional, meaning the API may change based on real-world usage. If you maintain Python packages and deal with dependency version overrides, I'd appreciate if you gave this a try and reported any issues. Documentation (Provisional: Overriding dependency constraints section) <https://src.fedoraproject.org/rpms/pyproject-rpm-macros/blob/rawhide/f/READ…> <https://src.fedoraproject.org/rpms/pyproject-rpm-macros/blob/rawhide/f/READ…> Implementation <https://src.fedoraproject.org/rpms/pyproject-rpm-macros/c/5d9798f289ea8cbeb…> F44 bodhi update <https://bodhi.fedoraproject.org/updates/FEDORA-2026-c50219cb79> F43 bodhi update <https://bodhi.fedoraproject.org/updates/FEDORA-2026-051d1b3285> -- Regards, Charalampos Stratakis Senior Software Engineer Python Maintenance Team, Red Hat

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[heads-up] A targeted rebuild of Python packages with extension modules in Rawhide on Jul 22
by Karolina Surma 25 Jul '26

25 Jul '26

Hello, In the released Python 3.15.0b4 there was an incompatible ABI change[0] that forces us to one more rebuild of the packages with extension modules in a side tag. More precisely, we are rebuilding packages depending on python(abi) = 3.15 and libpython3.15.so.1.0()(64bit) that contain ".so" files or are installed into %python3_sitearch. There is about 750 packages in this targeted rebuild. We plan to do it tomorrow (July 22, 2026). Please, don't build your Python packages with extension modules in Rawhide until we confirm the side tag was merged. The rebuild will happen in f45-build-side-144323. Cheers, Karolina [0]: https://github.com/python/cpython/pull/152448

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Updating Zarr to v3
by Elliott Sales de Andrade 08 Jul '26

08 Jul '26

Hello, Zarr v3 has been out for about a year and a half now. When I originally ran a mass prebuild, there were several failures and we weren't ready for it. Now, several of those issues have either been fixed or the packages retired. As the current v2 build is FTFBS on Python 3.15, I would like to move forward with updating to v3. To do so, I would appreciate some help with a review for python-donfig [2]. The current mass-prebuild results can be found at [3]. [1] https://copr.fedorainfracloud.org/coprs/qulogic/zarr3/build/10623403/ [2] https://bugzilla.redhat.com/show_bug.cgi?id=2338798 [3] https://copr.fedorainfracloud.org/coprs/qulogic/zarr3/ -- Elliott

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python-devel July 2026