from socket import*
from time import ctime
HOST=''
PORT=1234
ADDR=(HOST,PORT)
BUFSIZ=1024
udpSerSock=socket(AF_INET,SOCK_DGRAM)
udpSerSock.bind(ADDR)
while True:
print'waiting for connection...'
data,addr=udpSerSock.recvfrom(BUFSIZ)
if not data:
break
udpSerSock.sendto('[%s] %s'%(ctime(),data),addr)
print'receive from and return to:',addr
print data
udpSerSock.close()
