def sendMessage(self, exchangeName, message, routingKey=None):
self._connect()
chan = self.conn.channel()
bound_exchange = Exchange(exchangeName)
routingKey = routingKey if routingKey else exchangeName
try:
bound_exchange = bound_exchange(chan)
message = bound_exchange.Message(message)
bound_exchange.publish(message, routingKey)
finally:
chan.close()
self._release()