本文介绍了Python中的进程通信的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着跟版网的小编来一起学习吧！
问题描述
在python中建立两个进程之间通信的最佳方法是什么?经过一番谷歌搜索，我尝试这样做:
What is the best way to establish communication between two processes in python? After some googling, I tried to do so:
parent_pipe, child_pipe = Pipe()
p = Process(target = instance_tuple.instance.run(),
args = (parent_pipe, child_pipe,))
p.start()
向子进程发送数据:
command = Command(command_name, args)
parent_pipe.send(command)
处理目标函数:
while True:
if (self.parent_pipe.poll()):
command = parent_pipe.recv()
if (command.name == 'init_model'):
self.init_model()
elif (command.name == 'get_tree'):
tree = self.get_fidesys_tree(*command.args)
result = CommandResult(command.name, tree)
self.child_pipe.send(result)
elif(command.name == 'set_variable'):
name = command.args[0]
value = command.args[1]
self.config[name] = value
但它似乎不起作用(子进程没有通过 parent_pipe 接收任何内容).我该如何解决?
But it doesn't seem to work (child process doesn't receive anything through parent_pipe). How can I fix it?
提前致谢.
推荐答案
你可以看这里:http://docs.python.org/library/multiprocessing.html#exchanging-objects-between-processes该解决方案与您的解决方案很接近，但似乎更容易.
You can have a look here : http://docs.python.org/library/multiprocessing.html#exchanging-objects-between-processes The solution is close to yours but seems easier.
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