What’s the Best Python Version for My Old Computer?

I have a Windows 7 32-bit OS and I need to learn and to code AI programs (like Neural Networks).
What version of Python and AI plugin package is best for my system?

The best Python version is the latest version that will run on your
system and the software you need.

I know very little about AI packages, but the highest version of Python
that will run on Windows 7 is version 3.8.7: