def METHOD_NAME(self):
    """ check if config is changed and (re)load
    """
    mod_time = os.stat(self._cnf_filename)[stat.ST_MTIME]
    if os.path.exists(self._cnf_filename) and self.last_updated != mod_time:
        self._conf_handle = ConfigParser()
        self._conf_handle.read(self._cnf_filename)
        self.last_updated = mod_time