How to create executables of py files in python 3.8.5?

Question

How can I generate executables of python files using python's 3.8.5 version? So far I've been having a lot of problems with pyinstaller which only supports until version 3.7. Do I necessarily need to downgrade my python's version? If so, how can I change my python version using windows powershell (without anaconda)?

Answer 1

try entering

    py -0

then see what available versions of python you have installed, then just enter py -"version number here" and it should boot up that version