Bug 2367256

asv fails to build with Python 3.14.0b1.

+ /usr/bin/python3 -Bs /usr/lib/rpm/redhat/pyproject_buildrequires.py --generate-extras --python3_pkgversion 3 --wheeldir /builddir/build/BUILD/asv-0.5.1-build/asv-0.5.1/pyproject-wheeldir --output /builddir/build/BUILD/asv-0.5.1-build/asv-0.5.1-17.fc43.x86_64-pyproject-buildrequires -r -x hg
Handling wheel from build-system.requires
Requirement satisfied: wheel
   (installed: wheel 0.45.1)
Handling setuptools from build-system.requires
Requirement satisfied: setuptools
   (installed: setuptools 78.1.1)
Handling setuptools >= 40.8 from default build backend
Requirement satisfied: setuptools >= 40.8
   (installed: setuptools 78.1.1)
<string>:4: SetuptoolsDeprecationWarning: The test command is disabled and references to it are deprecated.
!!

        ********************************************************************************
        Please remove any references to `setuptools.command.test` in all supported versions of the affected package.

        This deprecation is overdue, please update your project and remove deprecated
        calls to avoid build errors in the future.
        ********************************************************************************

!!
Traceback (most recent call last):
  File "/usr/lib/rpm/redhat/pyproject_buildrequires.py", line 730, in main
    generate_requires(
    ~~~~~~~~~~~~~~~~~^
        include_runtime=args.runtime,
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    ...<11 lines>...
        config_settings=parse_config_settings_args(args.config_settings),
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/usr/lib/rpm/redhat/pyproject_buildrequires.py", line 612, in generate_requires
    generate_build_requirements(backend, requirements)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/rpm/redhat/pyproject_buildrequires.py", line 302, in generate_build_requirements
    new_reqs = get_requires(config_settings=requirements.config_settings)
  File "/usr/lib/python3.14/site-packages/setuptools/build_meta.py", line 334, in get_requires_for_build_wheel
    return self._get_build_requires(config_settings, requirements=[])
           ~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.14/site-packages/setuptools/build_meta.py", line 304, in _get_build_requires
    self.run_setup()
    ~~~~~~~~~~~~~~^^
  File "/usr/lib/python3.14/site-packages/setuptools/build_meta.py", line 522, in run_setup
    super().run_setup(setup_script=setup_script)
    ~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.14/site-packages/setuptools/build_meta.py", line 320, in run_setup
    exec(code, locals())
    ~~~~^^^^^^^^^^^^^^^^
  File "<string>", line 292, in <module>
  File "<string>", line 195, in run_setup
  File "<string>", line 93, in get_version
AttributeError: 'Constant' object has no attribute 's'

According to: https://docs.python.org/dev/whatsnew/3.14.html#id2

Remove the following classes. They were all deprecated since Python 3.8, and have emitted deprecation warnings since Python 3.12:
ast.Bytes
ast.Ellipsis
ast.NameConstant
ast.Num
ast.Str

Use ast.Constant instead. As a consequence of these removals, user-defined visit_Num, visit_Str, visit_Bytes, visit_NameConstant and visit_Ellipsis methods on custom ast.NodeVisitor subclasses will no longer be called when the NodeVisitor subclass is visiting an AST. Define a visit_Constant method instead.

Also, remove the following deprecated properties on ast.Constant, which were present for compatibility with the now-removed AST classes:
ast.Constant.n
ast.Constant.s

Use ast.Constant.value instead.
(Contributed by Alex Waygood in gh-119562.)


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-b1/fedora-rawhide-x86_64/09062381-asv/

For all our attempts to build asv with Python 3.14, see:
https://copr.fedorainfracloud.org/coprs/g/python/python3.14-b1/package/asv/

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-b1/

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.