Dmitry Tantsur added the comment:
That would be fantastic, but I did not dare asking for it :)
This is how the output of if_nameindex looks on my Fedora 29:
[(1, 'lo'), (2, 'enp0s31f6'), (3, 'wlp4s0'), (4, 'virbr0'), (5, 'virbr0-nic'),
New submission from Dmitry Tantsur :
These two calls are currently Unix-only in the socket module. However, Windows
supports them starting with Vista:
https://docs.microsoft.com/en-us/windows/desktop/api/netioapi/nf-netioapi-if_indextoname
https://docs.microsoft.com/en-us/windows/desktop/api
