def on_welcome(self, connection, event):
        self._logger.debug('Connected to the server')

        for channel in self._channels:
            self._logger.debug((channel) % 'Joining #%s...')
            connection.join(channel)
dataset/ETHPy150Open StackStorm/st2contrib/packs/irc/sensors/irc_sensor.py/StackStormSensorBot.on_welcome/swapped operands of `%`