Netmiko SSH connect problem in cisco devices

Question

Program:

from netmiko import ConnectHandler

iosv_l2 = {
    'device_type': 'cisco_ios',
    'ip':   '192.168.122.50',
    'username': 'sagar',
    'password': 'sagar',

}

net_connect =ConnectHandler(**iosv_l2)
output =net_connect.send_command('show ip int brief')
print(output)

config_commands = [ 'int loop 0', 'ip addre 1.1.1.1 255.255.255.0']
output = net_connect.send_config_set(config_commands)
print (output)

Error:

Traceback (most recent call last):
  File "netmiko1", line 3, in <module>
    from netmiko import ConnectHandler
  File "/usr/local/lib/python2.7/dist-packages/netmiko/__init__.py", line 7, in <module>
    from netmiko.ssh_dispatcher import ConnectHandler
  File "/usr/local/lib/python2.7/dist-packages/netmiko/ssh_dispatcher.py", line 2, in <module>
    from netmiko.a10 import A10SSH
  File "/usr/local/lib/python2.7/dist-packages/netmiko/a10/__init__.py", line 1, in <module>
    from netmiko.a10.a10_ssh import A10SSH
  File "/usr/local/lib/python2.7/dist-packages/netmiko/a10/a10_ssh.py", line 3, in <module>
    from netmiko.cisco_base_connection import CiscoSSHConnection
  File "/usr/local/lib/python2.7/dist-packages/netmiko/cisco_base_connection.py", line 143
    msg = f"Login failed: {self.host}"
                                     ^
SyntaxError: invalid syntax

Answer 1

Yes, Netmiko 3.x.x requires Python 3.6+ so you will need to upgrade your Python version to that (or downgrade to Netmiko 2.4.2).

Answer 2

This module uses f-strings, which were only added to Python in version 3.6. To fix this, upgrade Python to 3.6 or later. You are currently using 2.7.

The 3.0.0 update to Netmiko removed all support for Python 2.7. In order to continue using Python 2.7, you'll have to downgrade to version 2.4.2.