Bug 2345529

Summary: python-qt5 fails to build with Python 3.14: error: ‘PySequence_Fast’ was not declared in this scope; did you mean ‘PySequence_List’
Product: [Fedora] Fedora Reporter: Karolina Surma <ksurma>
Component: python-qt5Assignee: marcdeop
Status: CLOSED NEXTRELEASE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 43CC: kde-sig, ksurma, mhroncok, projects.rg, rdieter, than
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Hardware: Unspecified   
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Fixed In Version: python-qt5-5.15.11-8.fc43 Doc Type: If docs needed, set a value
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Last Closed: 2025-08-27 21:53:14 UTC Type: Bug
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Blocks: 2322407    

Description Karolina Surma 2025-02-13 11:48:38 UTC
python-qt5 fails to build with Python 3.14.05.

../../qpy/QtGui/qpyopengl_attribute_array.cpp: In function ‘const GLfloat* qpyopengl_attribute_array(PyObject*, PyObject*, PyObject*, int*, sipErrorState*)’:
../../qpy/QtGui/qpyopengl_attribute_array.cpp:77:14: error: ‘PySequence_Fast’ was not declared in this scope; did you mean ‘PySequence_List’?
   77 |     values = PySequence_Fast(values, "an attribute array must be a sequence");
      |              ^~~~~~~~~~~~~~~
      |              PySequence_List

https://docs.python.org/3.14/whatsnew/3.14.html

For the build logs, see:
https://copr-be.cloud.fedoraproject.org/results/@python/python3.14/fedora-rawhide-x86_64/08651085-python-qt5/

For all our attempts to build python-qt5 with Python 3.14, see:
https://copr.fedorainfracloud.org/coprs/g/python/python3.14/package/python-qt5/

Testing and mass rebuild of packages is happening in copr.
You can follow these instructions to test locally in mock if your package builds with Python 3.14:
https://copr.fedorainfracloud.org/coprs/g/python/python3.14/

Let us know here if you have any questions.

Python 3.14 is planned to be included in Fedora 43.
To make that update smoother, we're building Fedora packages with all pre-releases of Python 3.14.
A build failure prevents us from testing all dependent packages (transitive [Build]Requires),
so if this package is required a lot, it's important for us to get it fixed soon.

We'd appreciate help from the people who know this package best,
but if you don't want to work on this now, let us know so we can try to work around it on our side.

Comment 1 Fedora Admin user for bugzilla script actions 2025-07-17 01:16:14 UTC
This package has changed maintainer in Fedora. Reassigning to the new maintainer of this component.