from __future__ import print_function
from netmiko import ConnectHandler
from itertools import zip_longest
from paramiko.ssh_exception import SSHException,BadHostKeyException,NoValidConnectionsError,PasswordRequiredException
from netmiko.ssh_exception import NetMikoTimeoutException
from datetime import datetime
import traceback
import sys
import time
import select
import paramiko
import io
import os
import netmiko

# Output file
fd = io.open(r'/path/SSH-Output.txt', 'w')
old_stdout = sys.stdout
sys.stdout = fd
platform = 'cisco_ios'
username = 'ID'
password = 'PASS'
# Hosts ip address/fqdn to be put in this file
ip_add_file = io.open('/path/IPAddressList.txt', 'r')

# do task via for loop over Host file

for host in ip_add_file:
    host = host.strip()
    try:
        starting_time = datetime.now()
        print(">>>> {}".format(starting_time))
        device = ConnectHandler(device_type=platform, ip=host, username=username, password=password)
        output = device.send_command('terminal length 0')
        output = device.send_command('enable')
        print('##############################################################\n')
        print(".........DEVICE %s.....\n" % (host))
        print('...................VLANs STATUS......................\n')
        output = device.send_command('sh vlan \n')
        time.sleep(.5)
        print(output)
    except (EOFError, SSHException, NetMikoTimeoutException, BadHostKeyException, PasswordRequiredException, NoValidConnectionsError ):
        print("SSH is not enabled for %s\n" %(host))
        traceback.print_exc()
    continue
fd.close()