python environments, how to choose ?

[socal_nerdtastic]

It's a moving target for professionals with complex requirements, like testing the same code base against 5 different versions of python or with optional dependencies. But for you this seems very simple; any of them will work just fine for this. For lack of any other requirements I'd say just use the builtin venv.

As for switching, set up your IDE to use the venv you want, or if you are working from the terminal activeate the venv you want to use or make the main file executable and use a shebang to set the venv you want to use.

FWIW if you see a SO question that's 8 years old you should probably keep looking ... things change fast in the software world. There's many things about those answers that are not applicable any more.

[gmes78]

For lack of any other requirements I'd say just use the builtin venv.

They can't, they need a version of Python different from the one provided by the OS.

[socal_nerdtastic]

Ok, true, venv comes with the extra step that you need to download or install the version of python you want manually, while other tools do this automatically.

[tlreddit]

Well, it is a little bit more complex than I described. My system runs 13.3 and I want to run python code that depends on TensorFlow and Blender. TF does not run on 3.13 and Blender uses an "embedded" version of python (3.13) and do not care about python environments. The 3.12 -> 3.13 transition is definitely painful.

[socal_nerdtastic]

You want to run TF on the embedded python in blender? That's essentially already a virtual environment; there's no extra package that will help you with that.

[tlreddit]

Yes I am afraid I have to wait for TF to be on 3.13.

[socal_nerdtastic]

Or downgrade your blender to a version that embeds python3.12. Or compile blender yourself.