python之期待 if else 语句

我正在尝试创建一个脚本来清除 ciscoasa bad xlate。

为了检查错误的 xlate，我运行 sh xlate |在 500 中，如果它得到回复，那么它应该发送一个明确的命令。如果我不这样做，ciscoasa 将不允许新的 vpn 隧道。

我需要有关 if else 语句的帮助。否则，脚本工作正常。这是我的代码:

import pexpect 
import re 
 
password1="abc" 
password2="abc" 
router="127.0.0.20" 
user="user" 
 
 
#Extracting IP out of xlate command 
class sendip(object): 
    def ip(self,reply): 
    divide=reply[15:32] 
    extract_ip = re.findall( r'[0-9]+(?:\.[0-9]+){3}', divide ) 
    for ip in extract_ip: 
      send = 'clear local-host '+ip 
      return send 
clearVPN = sendip() 
 
#ssh into ciscoasa userop5@ip 
child = pexpect.spawn ('ssh ' + user + '@' + router) 
child.expect ('.*assword:.*') 
child.sendline (password1) 
 
#enable mode 
child.expect ('.*>.*') 
child.sendline ('ena') 
child.expect ('.*assword:.*') 
child.sendline (password2) 
 
# after enabling send test command 
child.sendline ('terminal pager 0') 
child.sendline ('show run | include http') 
child.expect ('enroll*') 
print child.before 
 
# Here it sends command 
child.sendline('sh xlate | i 500') 
child.expect ('ciscoasa#.*') 
print child.after 
 
if child==1:  # If receive reply then extract IP and send clear memory 
    child.expect('UDP.*') 
    message = child.before 
    child.sendline(clearVPN.ip(message)) #extract ip from there reply and send clear 
    print child.before 
    child.expect('clearing.*') 
    print child.before 
else:         # Otherwise memory is not full 
    child.expect ('ciscoasa#.*') 
    print 'Memory is empty' 
    print child.after 
 
child.sendline('exit') 
child.close() # close ssh 

请您参考如下方法:

我想说的是，您需要在 if 语句之前的 child.expect 调用中使用多种模式。这样您就可以根据发送到终端的最后一个命令的响应输出做出决定。

有关更多信息，请查看 lists if patterns文档中的部分。