Network Python

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import socket, traceback
host = ''                               # Bind to all interfaces
port = 51423
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))
while 1:
    try:
        message, address = s.recvfrom(8192)
        print "Got data from", address
        # Acknowledge it.
        s.sendto("I am here", address)
    except (KeyboardInterrupt, SystemExit):
        raise
    except:
        traceback.print_exc()