test.py

from netmiko import ConnectHandler
import os
from datetime import date, datetime
from ping3 import ping
import getpass
import click

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

    def create_folder(folder):
        if not os.path.exists(folder):
            os.mkdir(folder)
        os.chdir(folder)

    # Login to the devices 
    def device_login(host, username, password):
        cisco_ios = {
            'device_type': 'cisco_ios',
            'host': host,
            'username': username,
            'password': password,
        }
        try:
            connection = ConnectHandler(**cisco_ios)
            connection.enable()
            test.device_hostname(connection) 
        except Exception as err:
            print(f"Oops! {err}")

    # Retrieve the device Hostname
    def device_hostname(SSH):
        output = SSH.send_command("show run")
        dev_name = SSH.send_command("show run | in hostname")
        dev_name = dev_name.split(" ")
        hostname = dev_name[1]
        print("The device name is: ", hostname)
        test.device_commands(hostname, SSH) 

    # Push the commands stored into the "Commands.txt" file and store the output in different files called with Device hostname and timestamp
    def device_commands(device_name, device_SSH):
        with open(device_name + "_" + dt_string_full + ".txt", "w") as txt_file:
            print("The file called: " + device_name + ".txt has been created into the " + backup_folder + "/" + dt_string + " folder. You will find here all the outputs. I'm going to close the SSH session")
            for command in commands_list:
                txt_file.write("######## " + command + " ######## \n\n")
                output = (device_SSH.send_command(command))
                txt_file.write(output + "\n\n\n\n")         
            device_SSH.disconnect()
            print("\n\n\n")

    # Verify if an IP address is reachable.
    # If YES: run "device_login" function
    # If NO: Create a file called with the IP Address of the device and write inside "This device is not reachable. Please verify its status and connectivity"
    def ip_reachability(self):
        for ip in ip_list:
            print("Testing: " + ip)
            ip_reach = ping(ip)
            if ip_reach == None:
                print("The device with the IP Address: " + ip + " is not reachable. Please verify its status and connectivity\n\n\n")
                with open(ip + "_" + dt_string_full + ".txt", "w") as downdevice:
                    downdevice.write("This device is not reachable. Please verify its status and connectivity")
            else:
                print ("It's reachable! I'm going to retrieve data from it.")
                test.device_login(ip, self.username, self.password)


# User enters device credentials 
#username = input('Enter your username: ')
#password = getpass.getpass('Enter your password: ')

# Code opens the file where IP Addresses are stored (1 per line)
file_ip = open("IPAddressList.txt", "r")
total_ips = file_ip.read()
ip_list = total_ips.splitlines()

# Code opens the file where commands are stored (1 per line)
file_commands = open("Commands.txt", "r")
total_commands = file_commands.read()
commands_list = total_commands.splitlines()

# Create Backup Folder
backup_folder = "BACKUP"
test.create_folder(backup_folder)

# Create daily folder inside Backup Folder
now = datetime.now()
dt_string = now.strftime("%m-%d-%Y")
dt_string_full = now.strftime("%m-%d-%Y_%H-%M-%S")
test.create_folder(dt_string)

# Code
@click.command()
@click.option('--username',
    prompt="AD Username",
    help="AD Username",
    required=True,envvar="USERNAME")
@click.option('--password',
    prompt="AD Password",
    help="AD Password",
    required=True, hide_input=True,envvar="PASSWORD")

def cli(username,password):
    invoke_class = test(username,password)
    invoke_class.ip_reachability()

if __name__ == "__main__":
    cli()