[Epel-packagers-sig] [Bug 2245678] New: python-scss fails to build with Python 3.13: The C extension could not be compiled - error: implicit declaration of function 'PyUnicode_GetSize', 'PyUnicode_AS_UNICODE'

https://bugzilla.redhat.com/show_bug.cgi?id=2245678

            Bug ID: 2245678
           Summary: python-scss fails to build with Python 3.13: The C
                    extension could not be compiled - error: implicit
                    declaration of function 'PyUnicode_GetSize',
                    'PyUnicode_AS_UNICODE'
           Product: Fedora
           Version: rawhide
            Status: NEW
         Component: python-scss
          Assignee: mrunge(a)redhat.com
          Reporter: ksurma(a)redhat.com
        QA Contact: extras-qa(a)fedoraproject.org
                CC: epel-packagers-sig(a)lists.fedoraproject.org,
                    ksurma(a)redhat.com, mhroncok(a)redhat.com,
                    mrunge(a)redhat.com,
                    openstack-sig(a)lists.fedoraproject.org,
                    patrick(a)puiterwijk.org,
                    python-packagers-sig(a)lists.fedoraproject.org
            Blocks: 2231791 (F40FTBFS,RAWHIDEFTBFS), 2244836 (PYTHON3.13)
  Target Milestone: ---
    Classification: Fedora



python-scss fails to build with Python 3.13.0a1.

This report is automated and not very verbose, but we'll try to get back here
with details.

scss/src/block_locator.c:320:33: error: implicit declaration of function
‘PyUnicode_AS_UNICODE’; did you mean ‘PyUnicode_AsUCS4’?
[-Werror=implicit-function-declaration]
  320 |                 self->codestr = PyUnicode_AS_UNICODE(codestr);
      |                                 ^~~~~~~~~~~~~~~~~~~~
      |                                 PyUnicode_AsUCS4                       
 ^
scss/src/block_locator.c:321:36: error: implicit declaration of function
‘PyUnicode_GetSize’; did you mean ‘PyUnicode_Resize’?
[-Werror=implicit-function-declaration]
  321 |                 self->codestr_sz =
PyUnicode_GetSize((PyObject*)codestr);
      |                                    ^~~~~~~~~~~~~~~~~
      |                                    PyUnicode_Resize

https://docs.python.org/3.13/whatsnew/3.13.html

For the build logs, see:
https://copr-be.cloud.fedoraproject.org/results/@python/python3.13/fedora...

For all our attempts to build python-scss with Python 3.13, see:
https://copr.fedorainfracloud.org/coprs/g/python/python3.13/package/pytho...

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 3.13:
https://copr.fedorainfracloud.org/coprs/g/python/python3.13/

Let us know here if you have any questions.

Python 3.13 is planned to be included in Fedora 41.
To make that update smoother, we're building Fedora packages with all
pre-releases of Python 3.13.
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.



Referenced Bugs:

https://bugzilla.redhat.com/show_bug.cgi?id=2231791
[Bug 2231791] Fedora 40 FTBFS Tracker
https://bugzilla.redhat.com/show_bug.cgi?id=2244836
[Bug 2244836] Python 3.13
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