python telnetlib to configure cisco ios

cisco-ap-config.py

import getpass
import sys
import telnetlib
import os
 
# Variables
tacacs = '.tacacslogin'
commandsfile = 'commands.txt'
hostsfile = 'hosts.txt'
verbose = "yes"
 
def userlogin():
    # Getting login credentials
    global username, password, enable
    if os.path.isfile(tacacs):
        login = open(tacacs, "r")
        username = login.readline()
        username = username.replace("\n", "")
        password = login.readline()
        password = password.replace("\n", "")
        enable = login.readline()
        enable = enable.replace("\n", "")
        login.close()
    else:
        print(tacacs, "not found.\n")
        #username = input("Username: ")
        #password = getpass.getpass("User Password: ")
        #enable = getpass.getpass("Enable Password: ")
        print('Using default login.\n')
        username = 'Cisco'
        password = 'Cisco'
        enable = 'Cisco'
 
    return username, password, enable
 
def login():
    # Logging in with username, password, and eable password
    global username, password, enable

    telnet.read_until(b"Username: ")
    telnet.write(username.encode('ascii') + b"\n")

    if password:
        telnet.read_until(b"Password: ")
        telnet.write(password.encode('ascii') + b"\n")

    if enable:
        telnet.read_until(b'>')
        telnet.write(b"enable\n")
        telnet.read_until(b"Password: ")
        telnet.write(enable.encode('ascii') + b"\n")
 
def sessioncommands():
    # Executing commands on the host
    global commands
    print("Executing Commands on", host2login)
    if os.path.isfile(commandsfile):
        commands = open(commandsfile, "r")
        try:
            for cmd2exe in commands:
                telnet.write(cmd2exe.encode('ascii'))
        finally:
            commands.close()
    else:
        print(commandsfile, " doesn't exist")
        telnet.write(b"exit\n")
    # Displaying the results
    if verbose == "yes":
        telnet.write(b"exit\nexit\nexit\nexit\n")
        output = telnet.read_all().decode('ascii')
        if "% " in output:
            print("Error: ", output)
            sys.exit()
        else:
            print(output)
 
    print("Logging out of", host2login)
 
# Doing work 
userlogin()
if os.path.isfile(hostsfile):
    hosts = open(hostsfile, "r")
    while 1:
        host2login = hosts.readline()
        host2login = host2login.replace("\n", "")
        if not host2login:
            break
        else:
            print("Logging into", host2login)
            telnet = telnetlib.Telnet(host2login)
            login()
            sessioncommands()
    hosts.close()
else:
    host2login = input("Host: ")
    print("Logging into", host2login)
    telnet = telnetlib.Telnet(host2login,timeout=1)
    login()
    sessioncommands()

commands.txt

config t
dot11 ssid ##SSID##
authentication open
authentication key-management wpa version 2
guest-mode
wpa-psk ascii ##PASSWORD##
exit
interface Dot11Radio0
encryption mode ciphers aes-ccm
ssid ##SSID##
no shutdown
exit
exit
copy running-config startup-config

hosts.txt

192.168.1.167
192.168.1.168
192.168.1.169
192.168.1.170

You can modify function userlogin() with try-except for Hosts are not available during bulk update =

# Doing work
userlogin()
if os.path.isfile(hostsfile):
    hosts = open(hostsfile, "r")
    while 1:
        host2login = hosts.readline()
        host2login = host2login.replace("\n", "")
        if not host2login:
            break
        else:
            print("Logging into", host2login)
            try:
                telnet = telnetlib.Telnet(host2login)
            except:
                pass
            try:
                login()
                sessioncommands()
            except:
                pass
    hosts.close()
else:
    host2login = input("Host: ")
    print("Logging into", host2login)
    try:
        telnet = telnetlib.Telnet(host2login, timeout=1)
    except:
        pass
    try:
        login()
        sessioncommands()
    except:
        pass