pcom_serial.py 文件源码

def get_command_input_param_names(self, to, requested_command_id):
        """
        Given an item ID and a command ID, requests the parameter names of the command from the item.
        Returns a list of names (comma delimited) that represent the parameter names.

        TODO: change return value to string?

        Eg. "frequency,duty cycle"
        :param to: destination item ID
        :param requested_command_id: command id to find the parameter names of
        :return: a list of parameter names
        """
        try:
            response = yield self.send_command(to, command_id=GET_COMMAND_INPUT_PARAM_NAMES, params=["command_id"],
                                               data=[requested_command_id])
        except Exception as e:
            logger.error("[PCOM] Unable to find command input parameter names for command {0} in item {1} because of "
                         "exception: {2}".format(requested_command_id, to, e))
            defer.returnValue(None)

        param_names = [] if len(response.data) == 0 else [x.strip() for x in response.data[0].split(',')]
        defer.returnValue(param_names)