s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect(('127.0.0.1', 8081)) while 1:
arg = raw_input("Send: ") if not arg:
netstring.writens(s, "end") break
netstring.writens(s, arg)
ret = netstring.readns(s)
print "Returned:", ret
s.close()