python实现可将字符转换成大写的tcp服务器实例

import SocketServer
import netstring
class MyRequestHandler(SocketServer.BaseRequestHandler):
  def handle(self):
    print "From:", self.client_address
    while 1:
      rq = netstring.readns(self.request)
      print rq
      netstring.writens(self.request, rq.upper())
      if rq.lower() == "end":
        break
myServer = SocketServer.TCPServer(('', 8081),
        MyRequestHandler)
myServer.handle_request()