Python 3.x ZMQ绑定到随机端口未按预期工作
我有以下代码:Python 3.x ZMQ绑定到随机端口未按预期工作,python-3.x,pyzmq,Python 3.x,Pyzmq,我有以下代码: context = zmq.Context() socket = context.socket(zmq.PAIR) communication_string = "{protocol}".format(protocol='tcp://*:') port = socket.bind_to_random_port(communication_string, min_port=2000, max_port=8000) print(port) while True: so
context = zmq.Context()
socket = context.socket(zmq.PAIR)
communication_string = "{protocol}".format(protocol='tcp://*:')
port = socket.bind_to_random_port(communication_string, min_port=2000, max_port=8000)
print(port)
while True:
socket.send_string("Server message to client3")
time.sleep(1)
我收到了一个例外
Traceback (most recent call last):
File "C:/Users/asaxena/Desktop/communciationExperiments/pair/tr.py", line 14, in <module>
port = socket.bind_to_random_port(communication_string, min_port=2000, max_port=8000)
File "C:\Users\asaxena\AppData\Local\Continuum\Miniconda3\lib\site-packages\zmq\sugar\socket.py", line 256, in bind_to_random_port
self.bind('%s:%s' % (addr, port))
File "zmq/backend/cython/socket.pyx", line 495, in zmq.backend.cython.socket.Socket.bind (zmq\backend\cython\socket.c:5653)
File "zmq/backend/cython/checkrc.pxd", line 25, in zmq.backend.cython.checkrc._check_rc (zmq\backend\cython\socket.c:10014)
raise ZMQError(errno)
zmq.error.ZMQError: No such device
谁能告诉我我做错了什么。这里的文档似乎没有多大帮助。函数bind_to_random_port应该找到一个由系统分配的开放端口并使用它,但是这不正常。如果您查看问题中的回溯
File "C:\Users\asaxena\AppData\Local\Continuum\Miniconda3\lib\site-packages\zmq\sugar\socket.py",
line 256, in bind_to_random_port
self.bind('%s:%s' % (addr, port))
您可以看到zmq
模块正在构建一个连接字符串,该字符串具有“%s:%s%”(addr,port)。因此,如果您将地址tcp://*:
传递给它,那么您将得到tcp://*::1234
。注意双:
如果您修改了代码,以便:
communication_string = "{protocol}".format(protocol='tcp://*:')
你有这个:
communication_string = "{protocol}".format(protocol='tcp://*')
它应该像预期的那样工作。我已经在本地测试过,它似乎对我有效
communication_string = "{protocol}".format(protocol='tcp://*')