利用SocketServer实现新协议

可以用SocketServer模块实现自己的协议，下面这个例子返回给客户端不同格式的时间
               
               
                #!/usr/bin/env python
from SocketServer import ThreadingMixIn, TCPServer, StreamRequestHandler
import time
class TimeRequestHandler(StreamRequestHandler):
    def handle(self):
        req = self.rfile.readline().strip()
        if req == "asctime":
            result = time.asctime()
        elif req == "seconds":
            result = str(int(time.time()))
        elif req == "rfc822":
            result = time.strftime("%a, %d %b %Y %H:%M:%S +0000",
                     time.gmtime())
        else:
            result = """Unhandled request.  Send a line with one of the
following words:
asctime -- for human-readable time
seconds -- seconds since the Unix Epoch
rfc822  -- date/time in format used for mail and news posts"""
        self.wfile.write(result + "\n")
class TimeServer(ThreadingMixIn, TCPServer):
    allow_reuse_address = 1
serveraddr = ('', 8765)
srvr = TimeServer(serveraddr, TimeRequestHandler)
srvr.serve_forever()