It was not possible to use other than Python v3.6 on Windows before OBS v28.0.0.
Things changed in:
Description Changes the Python module of obs-scripting to use the Python 3 stable ABI and also allows OBS to load several different recent Python 3 versions (any possible version between 3.6 and 3....
github.com
and from v28.0.0 you can use any in range: v3.6 - v3.xx