basic_consume() got multiple values for keyword argument 'queue'

在用rabbitmq调试生产者消费者demo时，报错如题目所示
详细报错信息如下：

Traceback (most recent call last):
  File "hello_consumer.py", line 19, in 
    channel.basic_consume(msg_consumer, queue="hello-queue", consumer_tag="hello-consumer")
TypeError: basic_consume() got multiple values for keyword argument 'queue'

源码如下：

import pika

credentials = pika.PlainCredentials("guest", "guest")
conn_params = pika.ConnectionParameters("localhost", credentials=credentials)
conn_broker = pika.BlockingConnection(conn_params)
channel = conn_broker.channel()
channel.exchange_declare(exchange="hello-exchange", exchange_type="direct", passive=False, durable=True, auto_delete=False)
channel.queue_declare(queue="hello-queue")
channel.queue_bind(queue="hello-queue", exchange="hello-exchange", routing_key="hola")
def msg_consumer(channel, method, header, body):
    channel.basic_ack(delivery_tag=method.delivery_tag)
    if body == "quit":
        channel.basic_cancel(consumer_tag="hello-consumer")
        channel.stop_consuming()
    else:
        print body
    return

channel.basic_consume(msg_consumer, queue="hello-queue", consumer_tag="hello-consumer")
channel.start_consuming()

查看api发现参数位置发生了变化，修改回调函数和queue的位置即可

channel.basic_consume(queue="hello-queue", msg_consumer,  consumer_tag="hello-consumer")

调整后运行仍然报错，

 File "hello_consumer.py", line 19
    channel.basic_consume(queue="hello-queue", msg_consumer, consumer_tag="hello-consumer")
SyntaxError: non-keyword arg after keyword arg

再次修改参数，第一个参数不能是键值对，最后如下所示：

channel.basic_consume("hello-queue", msg_consumer,  consumer_tag="hello-consumer")

再执行脚本即能正常运行