Mastering Python Networking (Pexpect).

import getpass
from pexpect import pxssh
import time

devices = {‘VSP-8284XSQ-1’: {‘prompt’: ‘VSP-8284XSQ-1:1>’, ‘ip’: ‘192.168.1.10’}, ‘VSP-8284XSQ-2’: {‘prompt’: ‘VSP-8284XSQ-2:1>’, ‘ip’: ‘192.168.1.11’}}

commands = [‘terminal more disable’, ‘show sys-info card’, ‘terminal more enable’]

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

for device in devices.keys():
outputFileName = device + ‘_output.txt’
device_prompt = devices[device] [‘prompt’]
device_ip = devices[device] [‘ip’]
child = pxssh.pxssh()
child.login(devices[device] [‘ip’], username.strip(), password.strip(), auto_prompt_reset=False)
print(‘Logged in to ‘ + device)
with open(outputFileName, ‘wb’) as f:
for command in commands:
child.expect(device_prompt)
child.sendline(command)
time.sleep(1)
f.write(child.before)
child.logout()