Integration tests for brotli are failing

[abravalheri]

Details in 76942cf#commitcomment-145325568:

It seems that this tag never got published to PyPI due to a failure in the integration tests.

The brotli package fails to build with the error:

Traceback (most recent call last):
        File "/tmp/pytest-of-runner/pytest-0/popen-gw2/test_install_sdist_brotli_v_LA0/.venv/lib/python3.10/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 353, in <module>
          main()
        File "/tmp/pytest-of-runner/pytest-0/popen-gw2/test_install_sdist_brotli_v_LA0/.venv/lib/python3.10/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 335, in main
          json_out['return_val'] = hook(**hook_input['kwargs'])
        File "/tmp/pytest-of-runner/pytest-0/popen-gw2/test_install_sdist_brotli_v_LA0/.venv/lib/python3.10/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 149, in prepare_metadata_for_build_wheel
          return hook(metadata_directory, config_settings)
        File "/tmp/pytest-of-runner/pytest-0/popen-gw2/test_install_sdist_brotli_v_LA0/.venv/lib/python3.10/site-packages/setuptools/build_meta.py", line 368, in prepare_metadata_for_build_wheel
          self.run_setup()
        File "/tmp/pytest-of-runner/pytest-0/popen-gw2/test_install_sdist_brotli_v_LA0/.venv/lib/python3.10/site-packages/setuptools/build_meta.py", line 313, in run_setup
          exec(code, locals())
        File "<string>", line 282, in <module>
        File "/tmp/pytest-of-runner/pytest-0/popen-gw2/test_install_sdist_brotli_v_LA0/.venv/lib/python3.10/site-packages/setuptools/__init__.py", line 108, in setup
          return distutils.core.setup(**attrs)
        File "/tmp/pytest-of-runner/pytest-0/popen-gw2/test_install_sdist_brotli_v_LA0/.venv/lib/python3.10/site-packages/setuptools/_distutils/core.py", line 146, in setup
          _setup_distribution = dist = klass(attrs)
        File "/tmp/pytest-of-runner/pytest-0/popen-gw2/test_install_sdist_brotli_v_LA0/.venv/lib/python3.10/site-packages/setuptools/dist.py", line 278, in __init__
          _Distribution.__init__(self, dist_attrs)
        File "/tmp/pytest-of-runner/pytest-0/popen-gw2/test_install_sdist_brotli_v_LA0/.venv/lib/python3.10/site-packages/setuptools/_distutils/dist.py", line 286, in __init__
          self.finalize_options()
        File "/tmp/pytest-of-runner/pytest-0/popen-gw2/test_install_sdist_brotli_v_LA0/.venv/lib/python3.10/site-packages/setuptools/dist.py", line 630, in finalize_options
          ep(self)
        File "/tmp/pytest-of-runner/pytest-0/popen-gw2/test_install_sdist_brotli_v_LA0/.venv/lib/python3.10/site-packages/setuptools/dist.py", line 650, in _finalize_setup_keywords
          ep.load()(self, ep.name, value)
        File "/opt/hostedtoolcache/Python/3.10.14/x64/lib/python3.10/importlib/metadata/__init__.py", line [173](https://github.com/pypa/setuptools/actions/runs/10222324185/job/28287095585#step:6:174), in load
          return functools.reduce(getattr, attrs, module)
      AttributeError: module 'setuptools.dist' has no attribute 'check_test_suite'

I suspect there might be an outdated *.egg-info/entrypoints.txt or *.dist-info/entrypoints.txt somewhere in sys.path of the CI worker?

In my local test I can see that there is a /tmp/pytest-of-abravalheri/pytest-155/test_install_sdist_brotli_v_LA0/.venv/lib/python3.11/site-packages/setuptools-70.3.0.dist-info file in the generated virtual environment for some reason. Isn't the -I option in pip install supposed to prevent this from happening?

Other information relevant is that Brotli also uses the removed test_suite option.

[jaraco]

This issue happened previously in #4518.

[jaraco]

I re-ran the failed jobs for v72.2.0, since the release didn't go out as planned, and it succeeded.