test_udp.py 文件源码

def setUp(self):
        self.server = Server()
        self.client = Client()
        # multicast won't work if we listen over loopback, apparently
        self.port1 = reactor.listenMulticast(0, self.server)
        self.port2 = reactor.listenMulticast(0, self.client)
        self.client.transport.connect(
            "127.0.0.1", self.server.transport.getHost().port)