RabbitMQ

 #!/usr/bin/env python
 import pika # Importamos el paquete Pika
 connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost')) # Obtenemos la conexión al servidor
 channel = connection.channel() # Creamos el canal de comunicación
 channel.queue_declare(queue='hello') # Declaramos la cola de mensajes
 channel.basic_publish(exchange='', routing_key='hello', body='Hola Mundo!') # Publicamos el mensaje en la cola
 print(" [x] Sent 'Hola Mundo!'") # Mostramos lo enviado por pantalla
 connection.close() # Cerramos la conexión.

 #!/usr/bin/env python
 import pika
 connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost'))
 channel = connection.channel()
 channel.queue_declare(queue='hello')
 print(' [*] Waiting for messages. To exit press CTRL+C')
 def callback(ch, method, properties, body):
     print(" [x] Received %r" % body)
 channel.basic_consume(queue='hello', on_message_callback=callback)
 channel.start_consuming()