Python 反复构造和销毁上下文会产生错误#1260
在我的项目中,我需要反复构造和破坏上下文,但它会给出一个错误 例如:Python 反复构造和销毁上下文会产生错误#1260,python,zeromq,pyzmq,Python,Zeromq,Pyzmq,在我的项目中,我需要反复构造和破坏上下文,但它会给出一个错误 例如: import zmq for i in range(100): print(i) context = zmq.Context() data_socket = context.socket(zmq.SUB) data_socket.connect("tcp://127.0.0.1:5552") data_socket.setsockopt_string(zmq.SUBSCRIBE, ""
import zmq
for i in range(100):
print(i)
context = zmq.Context()
data_socket = context.socket(zmq.SUB)
data_socket.connect("tcp://127.0.0.1:5552")
data_socket.setsockopt_string(zmq.SUBSCRIBE, "")
context.destroy()
它回来了
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Traceback (most recent call last):
File "test.py", line 7, in <module>
data_socket.connect("tcp://127.0.0.1:5552")
File "zmq/backend/cython/socket.pyx", line 580, in zmq.backend.cython.socket.Socket.connect
File "zmq/backend/cython/checkrc.pxd", line 25, in zmq.backend.cython.checkrc._check_rc
zmq.error.ZMQError: Socket operation on non-socket
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回溯(最近一次呼叫最后一次):
文件“test.py”,第7行,在
数据插座连接(“tcp://127.0.0.1:5552")
文件“zmq/backend/cython/socket.pyx”,第580行,位于zmq.backend.cython.socket.connect中
文件“zmq/backend/cython/checkrc.pxd”,第25行,在zmq.backend.cython.checkrc.\u check\u rc
zmq.error.ZMQError:非套接字上的套接字操作
套接字选项必须放在.connect()
或.bind()
方法之前,您可以从zmq.Context()
创建单元实例
试试看:
import zmq
context = zmq.Context.instance()
for i in range(100):
print(i)
data_socket = context.socket(zmq.SUB)
data_socket.setsockopt(zmq.SUBSCRIBE, b"")
data_socket.connect("tcp://127.0.0.1:5552")
context.destroy()
[你的答案]: 但是,如果您想以自己的方式进行操作,则应在每次迭代中关闭套接字,这样您的代码片段将是:
import zmq
for i in range(100):
ctx = zmq.Context.instance()
sock = ctx.socket(zmq.SUB)
sock.setsockopt(zmq.SUBSCRIBE, b'')
sock.connect('tcp://127.0.0.1:5552')
sock.close() # Note
ctx.destroy()
print('ctx closed status: ', ctx.closed, ' iteration: ', i)
输出:
如果你的问题解决了,你可以投票支持我的答案:)谢谢你的回复。如果我想使用第一个选项,是否不需要关闭插座?不客气。不,但这完全取决于您的代码策略。在本例中,两个代码段都可以正常工作。
('ctx closed status: ', True, ' iteration: ', 0)
('ctx closed status: ', True, ' iteration: ', 1)
('ctx closed status: ', True, ' iteration: ', 2)
('ctx closed status: ', True, ' iteration: ', 3)
('ctx closed status: ', True, ' iteration: ', 4)
('ctx closed status: ', True, ' iteration: ', 5)
('ctx closed status: ', True, ' iteration: ', 6)
('ctx closed status: ', True, ' iteration: ', 7)
('ctx closed status: ', True, ' iteration: ', 8)
('ctx closed status: ', True, ' iteration: ', 9)
('ctx closed status: ', True, ' iteration: ', 10)
('ctx closed status: ', True, ' iteration: ', 11)
('ctx closed status: ', True, ' iteration: ', 12)
('ctx closed status: ', True, ' iteration: ', 13)
('ctx closed status: ', True, ' iteration: ', 14)
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