# Read username, output from non-empty factory, drop connections from twisted.internet import protocol, reactor from twisted.protocols import basic class FingerProtocol(basic.LineReceiver): def lineReceived(self, user): self.transport.write(self.factory.getUser(user)+"\r\n") self.transport.loseConnection() class FingerFactory(protocol.ServerFactory): protocol = FingerProtocol def __init__(self, **kwargs): self.users = kwargs def getUser(self, user): return self.users.get(user, "No such user") reactor.listenTCP(1079, FingerFactory(moshez='Happy and well')) reactor.run()