ImportError: type object 'Distribution' has no attribute '_finalize_feature_opts'

[Pierre-Sassoulas]

Hello,

I encounter the following problem after using the command: pip3 install -e ".[test]" -vvv. with setuptools 46.0.0. It seems very new because I did not have the problem on the same code 15 days ago, and also because there is nothing containing this error message when doing a web search. Reverting to an older version of setuptools (like 42.0.0, or 45.3.0) make the problem disapear.

Non-user install because user site-packages disabled
Created temporary directory: /tmp/pip-ephem-wheel-cache-j18ms5xi
Created temporary directory: /tmp/pip-req-tracker-ii4rcxhn
Initialized build tracking at /tmp/pip-req-tracker-ii4rcxhn
Created build tracker: /tmp/pip-req-tracker-ii4rcxhn
Entered build tracker: /tmp/pip-req-tracker-ii4rcxhn
Created temporary directory: /tmp/pip-install-nw20_kz_
Obtaining file:///home/pierre/PycharmProjects/project-name
  Added file:///home/pierre/PycharmProjects/project-name to build tracker '/tmp/pip-req-tracker-ii4rcxhn'
    Running setup.py (path:/home/pierre/PycharmProjects/project-name/setup.py) egg_info for package from file:///home/pierre/PycharmProjects/project-name
    Running command python setup.py egg_info
    Traceback (most recent call last):
      File "/home/pierre/PycharmProjects/project-name/venv/lib/python3.6/site-packages/pkg_resources/__init__.py", line 2454, in resolve
        return functools.reduce(getattr, self.attrs, module)
    AttributeError: type object 'Distribution' has no attribute '_finalize_feature_opts'

    During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/home/pierre/PycharmProjects/project-name/setup.py", line 56, in <module>
        zip_safe=True,
      File "/home/pierre/PycharmProjects/project-name/venv/lib/python3.6/site-packages/setuptools/__init__.py", line 144, in setup
        return distutils.core.setup(**attrs)
      File "/usr/lib/python3.6/distutils/core.py", line 108, in setup
        _setup_distribution = dist = klass(attrs)
      File "/home/pierre/PycharmProjects/project-name/venv/lib/python3.6/site-packages/setuptools/dist.py", line 425, in __init__
        k: v for k, v in attrs.items()
      File "/usr/lib/python3.6/distutils/dist.py", line 281, in __init__
        self.finalize_options()
      File "/home/pierre/PycharmProjects/project-name/venv/lib/python3.6/site-packages/setuptools/dist.py", line 706, in finalize_options
        ep.load()(self)
      File "/home/pierre/PycharmProjects/project-name/venv/lib/python3.6/site-packages/pkg_resources/__init__.py", line 2446, in load
        return self.resolve()
      File "/home/pierre/PycharmProjects/project-name/venv/lib/python3.6/site-packages/pkg_resources/__init__.py", line 2456, in resolve
        raise ImportError(str(exc))
    ImportError: type object 'Distribution' has no attribute '_finalize_feature_opts'
Cleaning up...
Removed file:///home/pierre/PycharmProjects/project-name from build tracker '/tmp/pip-req-tracker-ii4rcxhn'
Removed build tracker: '/tmp/pip-req-tracker-ii4rcxhn'
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.

Here is part of my setup.py:

TEST_REQUIRES = ["pytest-cov"]
SETUPTOOLS = "setuptools~=42.2.0"

setuptools.setup(
    entry_points={
        "console_scripts": [
            "scriptname=namespace.file:run",
        ]
    },
    packages=setuptools.find_namespace_packages(),
    package_dir={},
    install_requires=[
        "beautifulsoup4",
        "fluidtopics>=0.2.0",
        "mammoth~=1.4.10",
        "lxml",
        "pypandoc==1.4",
    ],
    setup_requires=[SETUPTOOLS],
    tests_require=TEST_REQUIRES,
    extras_require={"test": TEST_REQUIRES, "setup": [SETUPTOOLS]},
    zip_safe=True,
)

[Pierre-Sassoulas]

The problem came from the setup_requires=["setuptools~=42.2.0"], when using "setuptools~=46.0.0" locally. You can replace setup_requires=["setuptools~=42.2.0"], by setup_requires=["setuptools~=46.0.0"],.