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://www.51sjk.com/Upload/Articles/1/0/339/339111_20221212140317997.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://www.51sjk.com/Upload/Articles/1/0/339/339111_20221212140317997.html#exchanging-objects-between-processes The solution is close to yours but seems easier.