echoservermult.py implemented with SocketServer

echoservermultsocketserver.py

#!/usr/bin/env python

from sys import argv, exit
import threading
import SocketServer

HOST = 'localhost'

#-----------------------------------------------------------------------

class ThreadedTCPRequestHandler(SocketServer.StreamRequestHandler):
    def handle(self):
        tid = str(threading.currentThread())
        print 'Spawned thread ' + tid

        # FILE-esque wrappers have already been created by the
        # StreamRequestHandler base class and are placed in self.rfile
        # and self.wfile.
        while True:
            line = self.rfile.readline()
            if not line:
                break
            self.wfile.write('Echo: ' + line)
            self.wfile.flush()

        # StreamRequestHandler takes care of closing the file objects.
        print 'Exiting thread ' + tid

class ThreadedTCPServer(SocketServer.ThreadingMixIn, SocketServer.TCPServer):
    pass

#-----------------------------------------------------------------------

def main(argv):

    if len(argv) != 2:
        print 'Usage: python %s port' % argv[0]
        exit(1)

    try:
        port = int(argv[1])
        server = ThreadedTCPServer((HOST, port), ThreadedTCPRequestHandler)
        print 'Starting server'

        # The equivalent of the while-True loop in the original code.
        server.serve_forever()

    except Exception, e:
        print e

#-----------------------------------------------------------------------

if __name__ == '__main__':
    main(argv)