python編程（基於twisted的client編程）

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    python的twisted比較有意思，既能夠做server方面的編程，也能夠做client方面的編程。關於這方面的編程。最簡單的範例就是echo。

    client 代碼例如以下，

#!/usr/bin/pythonfrom twisted.internet.protocol import Protocol, ClientFactoryfrom sys import stdoutfrom twisted.internet import reactorclass Echo(Protocol):def dataReceived(self, data):stdout.write(data) class EchoClientFactory(ClientFactory):def startedConnecting(self, connector):print ‘Started to connect.‘   def buildProtocol(self, addr):print ‘Connected.‘return Echo()   def clientConnectionLost(self, connector, reason):print ‘Lost connection. Reason:‘, reasondef clientConnectionFailed(self, connector, reason):print ‘Connection failed. Reason:‘, reasonif __name__ == ‘__main__‘:reactor.connectTCP(‘localhost‘, 1234, EchoClientFactory())reactor.run()

    server 代碼例如以下，

#!/usr/bin/pythonfrom twisted.internet import protocol, reactor, endpointsclass Echo(protocol.Protocol):    def dataReceived(self, data):        self.transport.write(data)class EchoFactory(protocol.Factory):    def buildProtocol(self, addr):        return Echo()if __name__ == ‘__main__‘:    endpoints.serverFromString(reactor, "tcp:1234").listen(EchoFactory())    reactor.run()

python編程（基於twisted的client編程）