Selenium installed but not installed?

[snippsat]

Fix Environment Variables Path so it point to Python 3.9.
Python install
So for you just as image under but add Path to your python3.9 and Scripts roots folders.

Restart Pc and test python -V and pip -V.
Then py can used to access all other version.

C:\
λ py -2.7 -V
Python 2.7.9

C:\
λ py -3.8 -V
Python 3.8.3

# Main version use always python 
C:\
λ python -V
Python 3.9.1