#!/usr/bin/python

import telnetlib

import socket

try:

        tn=telnetlib.Telnet('10.67.21.29',60000)

except socket.error, e:

        print e

        exit(1)

tn.set_debuglevel(1)

tn.write('quit'+'\n')

print 'ok'



socket.error为错误类型 e为对象