You can just use uv now, that's the whole point, it will let you install any recent version of python and you can easily handle it from there. It'll also handle

You can just use uv now, that's the whole point, it will let you install any recent version of python and you can easily handle it from there. It'll also handle dependencies and one-off scripts for which you don't want to create a whole project/venv. By rule, you should never meddle with the globally installed python because so many packages will try to look for the system installed Python and use it, better let your package manager handle it.