[Bug 2146376] Re: FTBFS 5.13.1-1 because of annotation resolution in sphinx build

[Launchpad Bug Tracker]

** Merge proposal linked:
   https://code.launchpad.net/~gboutry/ubuntu/+source/python-keystoneauth1/+git/python-keystoneauth1/+merge/502694

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https://bugs.launchpad.net/bugs/2146376

Title:
  FTBFS 5.13.1-1 because of annotation resolution in sphinx build

Status in python-keystoneauth1 package in Ubuntu:
  New

Bug description:
  python-keystoneauth1 5.13.1-1 fails to build from source on resolute
  (Python 3.14):

    File "/<<PKGBUILDDIR>>/keystoneauth1/access/access.py", line 72, in __annotate__
        def service_catalog(self) -> service_catalog.ServiceCatalog:
                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    AttributeError: 'property' object has no attribute 'ServiceCatalog'
    make[1]: *** [debian/rules:30: override_dh_sphinxdoc] Error 2

  Python 3.14 (PEP 649) changes how annotations are evaluated. The service_catalog property on the AccessInfo class shadows the service_catalog module import, so when Sphinx autodoc resolves the return type annotation service_catalog.ServiceCatalog,
     it finds the property instead of the module.

  Build log: https://launchpadlibrarian.net/852480446/buildlog_ubuntu-
  resolute-amd64.python-keystoneauth1_5.13.1-1_BUILDING.txt.gz

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