python tcp echo server

server.py

import sys
import socket
import threading
import SocketServer
from socket import error as SocketError
import errno

class SingleTCPHandler(SocketServer.BaseRequestHandler):
    def handle(self):
        while True:
            try:
                data = self.request.recv(1024)  # clip input at 1Kb
            except SocketError as e:
                if e.errno != errno.ECONNRESET:
                    raise # Not error we are looking for
                break
            if data == '':
                self.request.close()
                break
            print data
            if not data.startswith('PROXY'):
                self.request.sendall('answer : {}'.format(data))
            

class SimpleServer(SocketServer.ThreadingMixIn, SocketServer.TCPServer):
    # Ctrl-C will cleanly kill all spawned threads
    daemon_threads = True
    # much faster rebinding
    allow_reuse_address = True

    def __init__(self, server_address, RequestHandlerClass):
        SocketServer.TCPServer.__init__(self, server_address, RequestHandlerClass)

if __name__ == "__main__":
    # Port 0 means to select an arbitrary unused port
    HOST, PORT = "0.0.0.0", 10001

    server = SimpleServer((HOST, PORT), SingleTCPHandler)
    # terminate with Ctrl-C
    try:
        server.serve_forever()
    except KeyboardInterrupt:
        sys.exit(0)