Converts a static URL path into a filesystem path.

        ``url_path`` is the path component of the URL with
        ``static_url_prefix`` removed.  The return value should be
        filesystem path relative to ``static_path``.

        This is the inverse of `make_static_url`.

def parse_url_path(self, url_path: str) -> str:
        """Converts a static URL path into a filesystem path.

        ``url_path`` is the path component of the URL with
        ``static_url_prefix`` removed.  The return value should be
        filesystem path relative to ``static_path``.

        This is the inverse of `make_static_url`.
        """
        if os.path.sep != "/":
            url_path = url_path.replace("/", os.path.sep)
        return url_path