无法从Python连接到RabbitMQ

我正在学习Python，遇到了一个奇怪的问题。我正在macOS Sierra本地机上运行RabitMQ。从python脚本连接到RabbitMQ服务器总是失败，并出现套接字超时错误。同时，我可以通过telnet进行连接。 运行Python 2.7和库kombu：

# test.py
from kombu import Connection

connection = Connection('amqp://127.0.0.1')
connection.connect()

结果是：

Thunderstorm:test max$ python test.py
Traceback (most recent call last):
  File "test.py", line 6, in <module>
    connection.connect()
  File "/Library/Python/2.7/site-packages/kombu/connection.py", line 261, in connect
    return self.connection
  File "/Library/Python/2.7/site-packages/kombu/connection.py", line 802, in connection
    self._connection = self._establish_connection()
  File "/Library/Python/2.7/site-packages/kombu/connection.py", line 757, in _establish_connection
    conn = self.transport.establish_connection()
  File "/Library/Python/2.7/site-packages/kombu/transport/pyamqp.py", line 130, in establish_connection
    conn.connect()
  File "/Library/Python/2.7/site-packages/amqp/connection.py", line 300, in connect
    self.drain_events(timeout=self.connect_timeout)
  File "/Library/Python/2.7/site-packages/amqp/connection.py", line 464, in drain_events
    return self.blocking_read(timeout)
  File "/Library/Python/2.7/site-packages/amqp/connection.py", line 468, in blocking_read
    frame = self.transport.read_frame()
  File "/Library/Python/2.7/site-packages/amqp/transport.py", line 237, in read_frame
    frame_header = read(7, True)
  File "/Library/Python/2.7/site-packages/amqp/transport.py", line 377, in _read
    s = recv(n - len(rbuf))
socket.timeout: timed out

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如何调试此问题？

通过增加默认连接超时解决此问题

Connection('amqp://127.0.0.1/', connect_timeout=15)

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通过增加默认连接超时时间解决了此问题

Connection('amqp://127.0.0.1/', connect_timeout=15)

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您是否尝试过像在telnet中一样在连接中输入端口号？i、 e.

连接（'amqp://127.0.0.1:5672“）

是的，我使用了端口，使用默认凭据，但总是得到相同的结果<代码>连接（'amqp://127.0.0.1:5672）

连接（'amqp://guest:guest@127.0.0.1:5672'）

您是否尝试过像在telnet中一样将端口号放入连接中？i、 e.

连接（'amqp://127.0.0.1:5672“）

是的，我使用了端口，使用默认凭据，但总是得到相同的结果<代码>连接（'amqp://127.0.0.1:5672）

连接（'amqp://guest:guest@127.0.0.1:5672’

Connection('amqp://127.0.0.1/', connect_timeout=15)