通过python自动连接ssh服务器

#!/usr/bin/python
-- coding:utf-8 --
import sys, time, os
try:
    import pexpect
except ImportError:
    print """
        You must install pexpect module
    """
    sys.exit(1)
addr_map = {
    'v3' :('root@192.168.1.162', 'sina@2009'),
    'dev':('test016@192.168.1.136', 'test016'),
}
try:
    key = sys.argv[1]
    host = addr_map[key]
except:
    print """
        argv error, use it link
        jssh v3, v3 must defined in addr_map
    """
    sys.exit(1)
server = pexpect.spawn('/usr/bin/ssh %s' % host[0])
server.expect('.*ssword:')
server.sendline(host[1])
server.interact()</pre>