twisted

Protocol 协议
Factory  工厂
reactor  反应器  (看作一个容器)
========= server.py =========

from twisted.internet import reactor
from twisted.internet.protocol import Factory,Protocol


class Echo(Protocol):
    def connectionMade(self):
        self.transport.write(‘hi,welcome!‘)
        self.transport.loseConnection()

    def dataReceived(self, data):
        print(data)
        self.transport.write(‘haha...‘+data)

factory = Factory()
factory.protocol = Echo

reactor.listenTCP(8001,factory)
reactor.run()

========= client.py =========

from twisted.internet.protocol import Protocol,ClientFactory
from twisted.internet import reactor


class Echo(Protocol):
    def connectionMade(self):
        self.transport.write(‘hi, server‘)

    def dataReceived(self, data):
        print(data)


class EchoClientFactory(ClientFactory):
    def startedConnecting(self, connector):
        print(‘connection starting ...‘)

    def buildProtocol(self, addr):
        print(‘addr‘)
        return Echo()

    def clientConnectionLost(self, connector, reason):
        print(‘lose reason‘,reason)

    def clientConnectionFailed(self, connector, reason):
        print(‘faild reason: ‘,reason)

reactor.connectTCP(‘127.0.0.0‘,8001,EchoClientFactory())
reactor.run()

原文：http://www.cnblogs.com/liyugeng/p/7989250.html