Pth file formatting breaks griffe

[samrensenhouse]

Describe the bug
This pth file https://github.com/mhammond/pywin32/blob/main/pywin32.pth seems to break _handle_pth_file. It errors out when checking if the directory exists.

  File "...\__pypackages__\3.8\lib\mkdocstrings_handlers\python\handler.py", line 182, in collect
    loader = GriffeLoader(
  File "...\__pypackages__\3.8\lib\griffe\loader.py", line 95, in __init__
    self.finder: ModuleFinder = ModuleFinder(search_paths)
  File "...\__pypackages__\3.8\lib\griffe\finder.py", line 59, in __init__
    self._extend_from_pth_files()
  File "...\__pypackages__\3.8\lib\griffe\finder.py", line 239, in _extend_from_pth_files
    self._append_search_path(_handle_pth_file(item))
  File "...\__pypackages__\3.8\lib\griffe\finder.py", line 282, in _handle_pth_file
    if added_dir.exists():
  File "...\AppData\Local\Programs\Python\Python38\lib\pathlib.py", line 1383, in exists
    self.stat()
  File "...\AppData\Local\Programs\Python\Python38\lib\pathlib.py", line 1189, in stat
    return self._accessor.stat(self)
OSError: [WinError 123] The filename, directory name, or volume label syntax is incorrect: "# .pth file for the PyWin32 extensions\nwin32\nwin32\\lib\nPythonwin\n# And some hackery to deal with environments where the post_install script\n# isn't run.\nimport pywin32_bootstrap"

To Reproduce
Steps to reproduce the behavior:

1. Install pywin32 package
2. Run griffe through mkdocstrings

mkdocs.yml

site_name: "Example"

nav:
- Home: index.md

plugins:
- mkdocstrings:
    default_handler: python

index.md

::: src.some_file.SomeClass

Expected behavior
Regardless of whether pywin32 is installed I would expect griffe to run successfully. If I uninstall the package, it works successfully.

System (please complete the following information):

• griffe version: 0.20.0
• Python version: 3.8
• OS: Windows

[pawamoy]

Thanks for the report! I see there's already a PR, will review it now 🙂

[sanand0]

I'm facing this issue at the moment. Thrilled to see this fix! I'd be grateful for a release on pypi 🙏