In Python networking, how do I consume message queues?

In Python networking, consuming message queues can be effectively done using libraries such as RabbitMQ and Kafka. These libraries provide robust mechanisms for handling message queues, allowing for asynchronous communication between services.

# Example of consuming a message queue using RabbitMQ in Python
import pika

# Establish a connection to RabbitMQ server
connection = pika.BlockingConnection(pika.ConnectionParameters('localhost'))
channel = connection.channel()

# Declare a queue
channel.queue_declare(queue='hello')

# Callback function to process received messages
def callback(ch, method, properties, body):
    print(" [x] Received %r" % body)

# Consume messages from the queue
channel.basic_consume(queue='hello', on_message_callback=callback, auto_ack=True)

print(' [*] Waiting for messages. To exit press CTRL+C')
channel.start_consuming()