>You have to do this for all the languages, not just Python.
No, you only have to do this for all popular languages. Unpopular but stable long term languages exist and they are much better for system administration. I guess my point is that the pythons aren't for system admin anymore, they're for writting bleeding edge applications. A Perl interpreter from 2003 can run most Perl applications written today and a .pl script from 2003 will definitely run on a 2024 Perl.
The pythons' roles have changed and are different from the former role of Python. They have lost the stable properties it once had.