try_except

#!/usr/bin/python3
import sys
from netaddr import IPAddress
from netmiko import ConnectHandler
import netmiko

N9K1 = {"ip":"10.1.100.90", "device_type":"cisco_nxos","username":"admin","password":"Cisco123$"}
N9K2 = {"ip":"10.1.100.92", "device_type":"cisco_nxos","username":"admin","password":"Cisco123$q"}
core = {"ip":"10.1.100.100", "device_type":"cisco_ios","username":"admin","password":"Cisco123$"}

devices_list = [N9K1, N9K2, core]

netmiko_exceptions = (netmiko.ssh_exception.NetMikoAuthenticationException,
                    netmiko.ssh_exception.NetMikoTimeoutException
                    )


for device in devices_list:

        try:
            connection = ConnectHandler(**device)

            connection.enable()

            if device['device_type'] == 'cisco_nxos':
                hostname = connection.send_command('show hostname')
                licenseid = connection.send_command('show license host-id')
            else:
                hostname = connection.send_command('show run | i host')
                hostname = hostname.replace('hostname ', '')
                licenseid = 'License hostid: no license '

            connection.disconnect()

        except netmiko_exceptions as ex:
            print('Error occur with [{}]'.format(device["ip"]))
            print('The problem touches: {}'.format(ex))
        else:
            # print('else')
            print('Host [{}] {}  {}'.format(device['ip'], hostname, licenseid))
        # finally:
        #     print('final')