AttributeError: 'EntryPoints' object has no attribute 'get'

[aparnakcvs]

# mkdocs build
Traceback (most recent call last):
  File "/usr/local/bin/mkdocs", line 10, in <module>
    sys.exit(cli())
  File "/usr/local/lib/python3.7/dist-packages/click/core.py", line 1130, in __call__
    return self.main(*args, **kwargs)
  File "/usr/local/lib/python3.7/dist-packages/click/core.py", line 1055, in main
    rv = self.invoke(ctx)
  File "/usr/local/lib/python3.7/dist-packages/click/core.py", line 1657, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/local/lib/python3.7/dist-packages/click/core.py", line 1404, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/local/lib/python3.7/dist-packages/click/core.py", line 760, in invoke
    return __callback(*args, **kwargs)
  File "/usr/local/lib/python3.7/dist-packages/mkdocs/__main__.py", line 244, in build_command
    from mkdocs.commands import build
  File "/usr/local/lib/python3.7/dist-packages/mkdocs/commands/build.py", line 15, in <module>
    from mkdocs.config.defaults import MkDocsConfig
  File "/usr/local/lib/python3.7/dist-packages/mkdocs/config/defaults.py", line 4, in <module>
    from mkdocs.config import config_options as c
  File "/usr/local/lib/python3.7/dist-packages/mkdocs/config/config_options.py", line 30, in <module>
    import markdown
  File "/usr/local/lib/python3.7/dist-packages/markdown/__init__.py", line 29, in <module>
    from .core import Markdown, markdown, markdownFromFile  # noqa: E402
  File "/usr/local/lib/python3.7/dist-packages/markdown/core.py", line 26, in <module>
    from . import util
  File "/usr/local/lib/python3.7/dist-packages/markdown/util.py", line 85, in <module>
    INSTALLED_EXTENSIONS = metadata.entry_points().get('markdown.extensions', ())
AttributeError: 'EntryPoints' object has no attribute 'get'

[oprypin]

You're reporting an error from Python-Markdown 3.2.2, released May 8, 2020
Based on matching against the stack trace line
https://github.com/Python-Markdown/markdown/blob/3.2.2/markdown/util.py#L85

This error happens only on Python 3.7 (superseded by Python 3.8 on Oct 14, 2019)
https://github.com/Python-Markdown/markdown/blob/7df1ed30d98cdc1316ec8da150644d957f1c6303/markdown/util.py#L32-L34
because the library importlib_metadata==5 (released Oct 2, 2022) had an intentional breakage (yet another totally incompetent move from their maintenance team, I have to say).

• Breaking change in 7e5bae4 (importlib_metadata 5) python/importlib_metadata#409

This was fixed in Python-Markdown 3.3.5, released Nov 16, 2021
https://github.com/Python-Markdown/markdown/blob/3.3.5/markdown/util.py#L88

So, you have any of the following options:

• pip install 'Python-Markdown>=3.3.5'
• Python >= 3.8
• pip install 'importlib_metadata<5'

I'm not sure how you managed to get the very latest importlib_metadata with all other packages remaining ancient. Generally just upgrade your dependencies, please.