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#!/usr/bin/env python
# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.
from twisted.internet import reactor
from twisted.internet.protocol import DatagramProtocol
class EchoClientDatagramProtocol(DatagramProtocol):
strings = [b"Hello, world!", b"What a fine day it is.", b"Bye-bye!"]
def startProtocol(self):
self.transport.connect("127.0.0.1", 8000)
self.sendDatagram()
def sendDatagram(self):
if len(self.strings):
datagram = self.strings.pop(0)
self.transport.write(datagram)
else:
reactor.stop()
def datagramReceived(self, datagram, host):
print("Datagram received: ", repr(datagram))
self.sendDatagram()
def main():
protocol = EchoClientDatagramProtocol()
reactor.listenUDP(0, protocol)
reactor.run()
if __name__ == "__main__":
main()
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