Python实现广播数据

BoardCastSer.Py:
#!/usr/bin/python
 # -*- coding: utf-8 -*-
 
 import socket,traceback
 
 host = ''
 port = 12345
 
 s = socket.socket(socket.AF_INET,socket.SOCK_DGRAM)
 s.setsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR,1)
 s.setsockopt(socket.SOL_SOCKET,socket.SO_BROADCAST,1)
 s.bind((host,port))
 print "Listen on the port 12345......"
 while True:
     try:
         sock,addr = s.recvfrom(8192)
         print "Receive data from:",addr
         s.sendto("I'm here BOSS!",addr)
     except (KeyboardInterrupt,SystemExit):
         raise
     except:
         traceback.print_exc()
 
BoardCastCli.Py:
#!/usr/bin/python
 # -*- coding: utf-8 -*-
 
 import socket,sys
 desc = ('<broadcast>',12345)
 s = socket.socket(socket.AF_INET,socket.SOCK_DGRAM)
 s.setsockopt(socket.SOL_SOCKET,socket.SO_BROADCAST,1)
 s.sendto("Hello",desc)
 print "Looking for replies........"
 while True:
     sock,addr = s.recvfrom(2048)
     if not len(sock):
         break
     print "Received from %s:%s"%(sock,addr)