#!/usr/bin/env python3
    import pika
     
    connection = pika.BlockingConnection(pika.ConnectionParameters('localhost'))
    channel = connection.channel()
     
    channel.queue_declare(queue='hello')
     
    def callback(ch, method, properties, body):
    	print(" [x] Received %r" % body)
     
    channel.basic_consume(queue='hello', on_message_callback=callback, auto_ack=True)
     
    print(' [*] Waiting for messages. To exit press CTRL+C')
    channel.start_consuming()