python rabbitmq no_

import pika

connection = pika.BlockingConnection(pika.ConnectionParameters('localhost'))
channel = connection.channel()

channel.queue_declare(queue='hello')

# for i in range(100):
channel.basic_publish(exchange='',
                      routing_key='hello',
                      body="hello world")
# print("Sent 'hello world!'")
connection.close()

#!/usr/bin/env python
import pika
import time
connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost'))
channel = connection.channel()

channel.queue_declare(queue='hello')
# channel.queue_bind(queue='hello',exchange='',routing_key='hello')
def callback(ch, method, properties, body):
    print("aaa")
    time.sleep(8)
    print(" [x] Received %r" % body)



channel.basic_consume(callback,
                      queue='hello',
                      no_ack=False)

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