code: def conf(self, key):
          '''get config'''
          return self.__conf[key] if key in self.__conf else _YunpianConf.YP_CONF.get(keyf conf(self, key):
          '''get config'''
          return self.__conf[key] if key in self.__conf else _YunpianConf.YP_CONF.get(key)
docs: get config