code: def path_to_url(path):
      # type: (Union[str, Text]) -> str
      
      path = os.path.normpath(os.path.abspath(path))
      url = urllib_parse.urljoin('file:', urllib_request.pathname2url(path))
      return url
docs: Convert a path to a file: URL.  The path will be made absolute and have
      quoted path parts.