Is it intended that os.chdir() only accept a Windows-style path?

[BLumia]

I'm attempting to working on a fix that git clang-format cannot be used under a MSYS2 shell:

• git-clang-format fails since Python os module don't expect POSIX style file paths MINGW-packages#2457

The source reason is that inside git-clang-format, it attempted to get the git root path by invoking git rev-parse --show-toplevel, and then attempt to os.chdir() to that location. Sadly that will cause a FileNotFoundError: [WinError 2] error (as shown in the issue linked above).

By reading the documentations:

• https://www.msys2.org/docs/filesystem-paths/
• https://www.msys2.org/docs/python/

If I understand it correctly, it seems it's intended to do the path conversion work when passing the argument to the program that we intended to call, and python will simply use Windows-style path inside a python script. Is that correct?

In another way to say, the following simple script will fail:

#!/usr/bin/env python3
import os, sys


def main():
  os.chdir('/home')


if __name__ == '__main__':
  sys.exit(main())

Is that right?

For some more context, my attempt to fix the issue is, check if we are using MSYS2 shell, and use cygpath to convert the path:

• [clang-format] convert path to Windows path if user is using a MSYS2 shell llvm/llvm-project#111526

Is that the correct way to do so?

By the way, changing (hardcode) the shebang to #!/usr/bin/python3 can also fix the issue, but should we assume that one exists, or is this way better?