Django 使用kombu-TypeError&x27发布消息；str'；对象不可调用

将消息负载编码为json后，我将尝试使用以下内容发布到代理：

connection = establish_connection()
producer = Producer(channel=connection,
                      exchange="inbound",
                      routing_key="apisubmit")

producer.publish(body=pl,headers={"api_access_key": "xxxx", "client_id": 4, "object_type": "location", "action": "c"})

django正在返回以下内容：

Traceback:
File "/usr/local/pythonenv/openblock/lib/python2.6/site-packages/Django-1.3.1-py2.6.egg/django/core/handlers/base.py" in get_response
  111.                         response = callback(request, *callback_args, **callback_kwargs)
File "/usr/local/pythonenv/openblock/src/myblock/myblock/barz/views.py" in testtwo
  19.     msg=publish_kombu()
File "/usr/local/pythonenv/openblock/src/myblock/myblock/barz/messaging.py" in publish_kombu
  99.                           routing_key="apisubmit")
File "/usr/local/lib/python2.6/dist-packages/kombu/messaging.py" in __init__
  82.         self.exchange = self.exchange(self.channel)

Exception Type: TypeError at /barz/publish_kombu/
Exception Value: 'str' object is not callable

---

Producer.exchange

必须是

exchange

。默认情况下，它是

Exchange（“”

），您必须以某种方式将其设置为字符串。

无论何时将值传递给“Exchange”参数，它都必须是

Exchange

对象

您的代码必须是：

exchange = Exchange(name='inbound') # the minimal declaration
connection = establish_connection()
producer = Producer(channel=connection,
                      exchange=exchange,
                      routing_key="apisubmit")

producer.publish(body=pl,headers={"api_access_key": "xxxx", "client_id": 4, "object_type": "location", "action": "c"})

有关Exchange参数的完整列表-

---

我在队列声明时遇到了相同的错误，即

queue = Queue(name=queue_name, exchange='host_tasks', routing_key=binding_key)
bound_queue = queue(channel) # only once bound, we can call declare(), purge(), delete() on exchange

这样宣布交换，如thah

exchange = Exchange('host_tasks', 'direct', durable=True)
queue = Queue(name=queue_name, exchange=exchange, routing_key=binding_key)
bound_queue = queue(channel)

别忘了

导入Exchange