I'm not sure what you might mean by runtime, but a python venv does make sure you're using the same runtime.
There are symlinks in the environments bin directory to the specific runtime. If you're plonking a python3.12 binary over the top of the python3.11 one, then yeah, you'll be using a different one, but that'd be an issue nomatter what you're using.
Just don't uninstall your python binaries and you're fine.
If you want to package everything up into am image or a zip, you can do that too if you want, but in my 10+ year career I've not had much of an issue just using boring venvs.
Just don't uninstall your python binaries and you're fine.
If you want to package everything up into am image or a zip, you can do that too if you want, but in my 10+ year career I've not had much of an issue just using boring venvs.