python的udp广播服务器和客户端例子

今晚因为工作的关系想了解一下网络广播，但是找了很久没有在中文网站上找到一套可用的例子，于是决定自己用python写一个，还好在e文网站上找到一个广播服务器的例子，自己写了客户端的，就是下面两个小程序了.
               
               
                #!/usr/bin/env python
# this is the udp broadcast server
import socket, traceback
host = ''                               # Bind to all interfaces
port = 1234
print "python UDP multi case server test"
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))
for i  in  range(1,100):
    try:
        s.sendto("server here",('192.168.1.255', 2345))
        message, address = s.recvfrom(1234)
        print "Got data from", address,":",message
        # Acknowledge it.
        s.sendto("I am here", address)
    except (KeyboardInterrupt, SystemExit):
        raise
    except:
        traceback.print_exc()
#!/usr/bin/env python
#this is the udp broadcast client
import socket, traceback
port = 2345
print "python UDP multi case client test"
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)
data = "Data from pc"
s.bind(("",2345))
for i  in  range(1,100):
    try:
        data,address=s.recvfrom(2345)
        print "cli get data form", address, ":", data
        s.sendto("client ack", address)
        #data,address = s.recvfrom(1024)
        #print "received %r from %r" % (data, address)
    except (KeyboardInterrupt, SystemExit):
        raise
    except:
        traceback.print_exc()
   
print "test finsh"