docs: def _get_long_path_name(path):
    """
    Returns the long path name for a Windows path, i.e. the properly cased
    path of an existing file or directory.
    """
  
    # Thanks to http://stackoverflow.com/a/3694799/791713
    buf = ctypes.create_unicode_buffer(len(path) + 1)
    GetLongPathNameW = ctypes.windll.kernel32.GetLongPathNameW
    res = GetLongPathNameW(path, buf, len(path) + 1)
    if res == 0 or res > 260:
      return path
    else:
      return buf.value