def get_base_path(path):
        """
        Determines the longest possible beginning of a path that does not
        contain a %-Symbol.

        /this/is/a/pa%th would become /this/is/a

        :param str path: the path to get the base from
        :return: the path's base
        """
        if "%" not in path:
            return path

        path = os.path.split(path)[0]

        while "%" in path:
            path = os.path.split(path)[0]

        return path
Determines the longest possible beginning of a path that does not
        contain a %-Symbol.

        /this/is/a/pa%th would become /this/is/a

        :param str path: the path to get the base from
        :return: the path's base