I modifyed the “shcommon.py” according to the @JonB suggestions and it worked.
I was also able to “pip install netmiko” and connect to my switches to execute the commands I wanted to. I am really happy now! Thanks!
Here below snapshots.
I think this should be taken into account for a new release of the app?
Thank you very much for your help @JonB as long as @dgelessus