Коренберг Марк

Since we already user `ipaddress.*`, Python 2.7 will not work anymore. So drop it. 2023 !

Seems CI has some problems. Not in the code I have changed.

Well, seems someone retriggered CI. Anyway, fail again. not in my code.

@GIC-de

@GIC-de

@GIC-de please review and merge

@GIC-de @wichert @Istvan91 Please take a look.

@kloczek would you merge this PR ?

@kloczek who has ?

Huge thanks! Could you please make a new git tag + increment version ?