I've never quite been convinced by this argument. If you can deploy and run .py files, surely you could deploy and run a local copy of python3? It's not like it

I've never quite been convinced by this argument. If you can deploy and run .py files, surely you could deploy and run a local copy of python3? It's not like it needs root. The target system not having an internet connection is a best-case for a local python3 package, since the lower attack surface makes package security updates less urgent.