setuptools >=65 + cython = warnings

[kiwifb]

Lots of doctest failures are appearing now that setuptools 65+ are the only version availables. cython called distutils extension that are deprecated. Example

sage -t --long --random-seed=205705670410541188758081033436036560950 /usr/lib/python3.10/site-packages/sage/rings/polynomial/ore_polynomial_element.pyx
**********************************************************************
File "/usr/lib/python3.10/site-packages/sage/rings/polynomial/ore_polynomial_element.pyx", line 1310, in sage.rings.polynomial.ore_polynomial_element.OrePolynomial._left_lcm_cofactor
Failed example:
    cython('''  # optional - sage.misc.cython
    from sage.rings.polynomial.ore_polynomial_element cimport OrePolynomial
    def left_lcm_cofactor(OrePolynomial P, OrePolynomial Q):
        return P._left_lcm_cofactor(Q)
    ''')
Expected nothing
Got:
    doctest:warning
      File "/usr/lib/python-exec/python3.10/sage-runtests", line 154, in <module>
        err = DC.run()
      File "/usr/lib/python3.10/site-packages/sage/doctest/control.py", line 1379, in run
        self.run_doctests()
      File "/usr/lib/python3.10/site-packages/sage/doctest/control.py", line 1054, in run_doctests
        self.dispatcher.dispatch()
      File "/usr/lib/python3.10/site-packages/sage/doctest/forker.py", line 2021, in dispatch
        self.parallel_dispatch()
      File "/usr/lib/python3.10/site-packages/sage/doctest/forker.py", line 1916, in parallel_dispatch
        w.start()  # This might take some time
      File "/usr/lib/python3.10/site-packages/sage/doctest/forker.py", line 2190, in start
        super().start()
      File "/usr/lib/python3.10/multiprocessing/process.py", line 121, in start
        self._popen = self._Popen(self)
      File "/usr/lib/python3.10/multiprocessing/context.py", line 224, in _Popen
        return _default_context.get_context().Process._Popen(process_obj)
      File "/usr/lib/python3.10/multiprocessing/context.py", line 281, in _Popen
        return Popen(process_obj)
      File "/usr/lib/python3.10/multiprocessing/popen_fork.py", line 19, in __init__
        self._launch(process_obj)
      File "/usr/lib/python3.10/multiprocessing/popen_fork.py", line 71, in _launch
        code = process_obj._bootstrap(parent_sentinel=child_r)
      File "/usr/lib/python3.10/multiprocessing/process.py", line 314, in _bootstrap
        self.run()
      File "/usr/lib/python3.10/site-packages/sage/doctest/forker.py", line 2162, in run
        task(self.options, self.outtmpfile, msgpipe, self.result_queue)
      File "/usr/lib/python3.10/site-packages/sage/doctest/forker.py", line 2492, in __call__
        doctests, extras = self._run(runner, options, results)
      File "/usr/lib/python3.10/site-packages/sage/doctest/forker.py", line 2544, in _run
        result = runner.run(test)
      File "/usr/lib/python3.10/site-packages/sage/doctest/forker.py", line 866, in run
        return self._run(test, compileflags, out)
      File "/usr/lib/python3.10/site-packages/sage/doctest/forker.py", line 695, in _run
        self.compile_and_execute(example, compiler, test.globs)
      File "/usr/lib/python3.10/site-packages/sage/doctest/forker.py", line 1093, in compile_and_execute
        exec(compiled, globs)
      File "<doctest sage.rings.polynomial.ore_polynomial_element.OrePolynomial._left_lcm_cofactor[0]>", line 1, in <module>
        cython('''  # optional - sage.misc.cython
      File "/usr/lib/python3.10/site-packages/sage/misc/cython.py", line 673, in cython_compile
        return cython_import_all(tmpfile, get_globals(), **kwds)
      File "/usr/lib/python3.10/site-packages/sage/misc/cython.py", line 563, in cython_import_all
        m = cython_import(filename, **kwds)
      File "/usr/lib/python3.10/site-packages/sage/misc/cython.py", line 534, in cython_import
        name, build_dir = cython(filename, **kwds)
      File "/usr/lib/python3.10/site-packages/sage/misc/cython.py", line 295, in cython
        from Cython.Build import cythonize
      File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
      File "<frozen importlib._bootstrap>", line 1006, in _find_and_load_unlocked
      File "<frozen importlib._bootstrap>", line 688, in _load_unlocked
      File "<frozen importlib._bootstrap_external>", line 883, in exec_module
      File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
      File "/usr/lib/python3.10/site-packages/Cython/Build/__init__.py", line 1, in <module>
        from .Dependencies import cythonize
      File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
      File "<frozen importlib._bootstrap>", line 1006, in _find_and_load_unlocked
      File "<frozen importlib._bootstrap>", line 688, in _load_unlocked
      File "<frozen importlib._bootstrap_external>", line 883, in exec_module
      File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
      File "/usr/lib/python3.10/site-packages/Cython/Build/Dependencies.py", line 41, in <module>
        import pythran
      File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
      File "<frozen importlib._bootstrap>", line 1006, in _find_and_load_unlocked
      File "<frozen importlib._bootstrap>", line 688, in _load_unlocked
      File "<frozen importlib._bootstrap_external>", line 883, in exec_module
      File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
      File "/usr/lib/python3.10/site-packages/pythran/__init__.py", line 41, in <module>
        from pythran.config import get_include
      File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
      File "<frozen importlib._bootstrap>", line 1006, in _find_and_load_unlocked
      File "<frozen importlib._bootstrap>", line 688, in _load_unlocked
      File "<frozen importlib._bootstrap_external>", line 883, in exec_module
      File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
      File "/usr/lib/python3.10/site-packages/pythran/config.py", line 8, in <module>
        import numpy.distutils.system_info as numpy_sys
      File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
      File "<frozen importlib._bootstrap>", line 1006, in _find_and_load_unlocked
      File "<frozen importlib._bootstrap>", line 688, in _load_unlocked
      File "<frozen importlib._bootstrap_external>", line 883, in exec_module
      File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
      File "/usr/lib/python3.10/site-packages/numpy/distutils/system_info.py", line 196, in <module>
        from numpy.distutils.command.config import config as cmd_config
      File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
      File "<frozen importlib._bootstrap>", line 1006, in _find_and_load_unlocked
      File "<frozen importlib._bootstrap>", line 688, in _load_unlocked
      File "<frozen importlib._bootstrap_external>", line 883, in exec_module
      File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
      File "/usr/lib/python3.10/site-packages/numpy/distutils/command/config.py", line 19, in <module>
        from numpy.distutils.mingw32ccompiler import generate_manifest
      File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
      File "<frozen importlib._bootstrap>", line 1006, in _find_and_load_unlocked
      File "<frozen importlib._bootstrap>", line 688, in _load_unlocked
      File "<frozen importlib._bootstrap_external>", line 883, in exec_module
      File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
      File "/usr/lib/python3.10/site-packages/numpy/distutils/mingw32ccompiler.py", line 28, in <module>
        from distutils.msvccompiler import get_build_version as get_build_msvc_version
      File "<frozen importlib._bootstrap>", line 1027, in _find_and_load
      File "<frozen importlib._bootstrap>", line 1006, in _find_and_load_unlocked
      File "<frozen importlib._bootstrap>", line 688, in _load_unlocked
      File "<frozen importlib._bootstrap_external>", line 883, in exec_module
      File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
      File "/usr/lib/python3.10/site-packages/setuptools/_distutils/msvccompiler.py", line 66, in <module>
        warnings.warn(
      File "/usr/lib/python3.10/warnings.py", line 109, in _showwarnmsg
        sw(msg.message, msg.category, msg.filename, msg.lineno,
    :
    DeprecationWarning: msvccompiler is deprecated and slated to be removed in the future. Please discontinue use or file an issue with pypa/distutils describing your use case.
**********************************************************************

Harmless but pollute the test results each time cython is called.