Mastering_Python_Networking-1

Python虚拟环境安装

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deactivate退出虚拟环境，进入linux环境

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#!/usr/bin/env python

import pexpect

devices = {'iosv-1': {'prompt': 'lax-edg-r1#', 'ip': '192.168.2.51'},
           'iosv-2': {'prompt': 'lax-edg-r2#', 'ip': '192.168.2.52'}}
username = 'cisco'
password = 'cisco'

for device in devices.keys():
    device_prompt = devices[device]['prompt']
    child = pexpect.spawn('telnet ' + devices[device]['ip'])
    child.expect('Username:')
    child.sendline(username)
    child.expect('Password:')
    child.sendline(password)
    child.expect(device_prompt)
    child.sendline('show version | i V')
    child.expect(device_prompt)
    print(child.before)
    child.sendline('exit')

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#!/usr/bin/env python

import getpass
from pexpect import pxssh

devices = {'lax-edg-r1': {'prompt': 'lax-edg-r1#', 'ip': '192.168.2.51'},
           'lax-edg-r2': {'prompt': 'lax-edg-r2#', 'ip': '192.168.2.52'}}
commands = ['term length 0', 'show version', 'show run']

username = input('Username: ')
password = getpass.getpass('Password: ')

# Starts the loop for devices
for device in devices.keys():
    outputFileName = device + '_output.txt'
    device_prompt = devices[device]['prompt']
    child = pxssh.pxssh()
    child.login(devices[device]['ip'], username.strip(), password.strip(), auto_prompt_reset=False)
    # Starts the loop for commands and write to output
    with open(outputFileName, 'wb') as f:
        for command in commands:
            child.sendline(command)
            child.expect(device_prompt)
            f.write(child.before)

    child.logout()

Pexpect 的实例分析 - OSCHINA - 中文开源技术交流社区