使用paramiko模塊遠(yuǎn)程ssh訪問(wèn)HP VLS帶庫(kù)系統(tǒng)報(bào)錯(cuò)

wind1211

hi all,
我的代碼如下：
import paramiko
import time
import sys
def ssh2(ip,username,passwd,cmd):
    #print ip+","+username+","+passwd+","+cmd.rstrip()
    try:
        ssh = paramiko.SSHClient()
        ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
        ssh.connect(ip,22,username,passwd,timeout=
        stdin,stdout,stderr = ssh.exec_command(cmd)
        cmd_output = stdout.read()
        ssh.close()
    except:
        print "connect to "+ip+"failed"
    return cmd_output
#HP VLS Tape drive sys
def _vlsinst()：
    vls_cmd = 'getChassis'
    vls_buff = ssh2(ip,username,passwd,vls_cmd)
    print(vls_buff)


if __name__=='__main__':
    ip = '10.133.162.112'
    username = 'administrator'
    passwd = 'admin'
    _vlsinst()

使用python 2.6的環(huán)境執(zhí)行后，提示如下：
[root@localhost tmp]# python CollHPVLS9200.py
Username could not be determined

使用如下命令驗(yàn)證，是能夠遠(yuǎn)程登錄的：
[root@localhost tmp]# ssh administrator@10.133.162.112
administrator@10.133.162.112's password:
Last login: Wed Aug  6 23:52:19 2014 from 11.203.2.87
Heap Size 512mB found in Vtl.prop
System ( java -Xmx512m -XX:+SuppressFatalErrorMessage -cp /S2100/lib/java/s2xcli.jar com.sepaton.s2xmgr.cli.acorn  -clishell -jx /S2100/bin/jexec -u administrator -o /var/log/cli_administrator.log -c continueOnError -c connect  )

administrator@vls9200-3>exit
Connection to 10.133.162.112 closed.

各位大神，有何建議？

mstools

局部變量讀不到,,
if __name__=='__main__':
global ip, username, passwd
添加這一行應(yīng)該就可以了.