Python中的进程通信

Question

在python中建立两个进程之间的通信的最佳方法是什么？经过一些谷歌搜索,我试图这样做:

parent_pipe, child_pipe = Pipe()
p = Process(target = instance_tuple.instance.run(), \
    args = (parent_pipe, child_pipe,))
p.start()

将数据发送到子进程:

command = Command(command_name, args)
parent_pipe.send(command)

处理目标功能:

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(子进程没有收到任何东西parent_pipe).我该如何解决？

提前致谢.

Answer 1

你可以看看这里:http://docs.python.org/library/multiprocessing.html#exchanging-objects-between-processes 解决方案离你很近但看起来更容易.