Python与Cisco 的事儿

   前几天写了一段代码，是用来检查思科设备的端口运行状态的，只是中间有些bug或是存在安全问题，比如密码写在脚本里，对网络不可以达的设备没有进行判断并加以跳过。以下对前两天写的代码进行修改。

#!/usr/bin/python 

from netmiko import ConnectHandler
from netmiko.ssh_exception import NetMikoTimeoutException
import time
import sys
import getpass


class CiscoNetwork():
        def __init__(self,username,password):
                 self.username = username
                 self.password = password

        def CiscoDevice(self,iplist):
		 self.device={'device_type':'cisco_ios',
                              'username':self.username,
                              'password':self.password,
                              'ip':iplist
                             }
		 print('-'*100)
                 print "[+]connect to network device... %s" %(iplist)
                 self.connect = ConnectHandler(**self.device)
	         self.connect.enable()

        def gethostname(self):
                self.hostname = self.connect.find_prompt()
                self.hostname = self.hostname.replace("#","")
                print self.hostname
             
        def show(self,cmd):
    	         self.output = self.connect.send_command(cmd)
                 for self.line in self.output.split('\n'):
                    if 'line protocol is up'  in self.line:
                        print (self.line)
 
        def close(self):
                if self.connect is not None:
                       self.connect.disconnect()
                       self.connect = None        
                
if __name__ == '__main__':
	print "[+] This Program is beging done......."
        username = raw_input('Username:')
        password = getpass.getpass() 
	for iplist in open("/opt/other/ip.txt"):
                try:
                   switch = CiscoNetwork(username,password)
                   switch.CiscoDevice(iplist)
                   switch.gethostname()
                   switch.show('show int')
                   switch.close()
                except (EOFError, NetMikoTimeoutException):
                   print ('Can not connect to Device')