echo server just for debug

用来调试，阻塞、单线程

import SocketServer
class EchoRequestHandler(SocketServer.BaseRequestHandler):
    def handle(self):
        data = self.request.recv(1024)
        print data
        print '='*30
        self.request.send(data)
        return

import socket
address = ('localhost', 8000)
server = SocketServer.TCPServer(address, EchoRequestHandler)
server.serve_forever()