Python 3.9/3.8 and pip installation under Windows

[snippsat]

Python 3.7
Installasjon work the same 3.6.
But the Add Python 3.7 to Path did not overwrite the 3.6 Path,so i had to change Path manually to point to 3.7.
The setup look:

pip is automatically marked on,do not utmark it.

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Fixing Path if needed
For new user the Path to 3.7 should be okay.
Here how to change Environment Variables Path

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Check python and pip
Check that python and pip point to 3.7 from anywhere cmd/cmder.

C:\
λ python -V
Python 3.7.0

C:\
λ pip -V
pip 10.0.1 from c:\python37\lib\site-packages\pip (python 3.7)

python my_scrip.py will use Python 3.7.
pip install something will install to Python 3.7

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Access other versions
All other version installed can be accessed by using py(this is a py.exe that get installed in Path of Windows)

C:\                                                                                                            
λ py -3.6 -V                                                                                                   
Python 3.6.4                                                        
                                                     
C:\                                                                                                            
λ py -2.7 -V                                                                                                   
Python 2.7.9                                                                                                   
                                                                                                               
C:\                                                                                                            
λ # Using pip to install to 2.7                                                                            
λ py -2.7 -m pip install logzero                                                                               
Requirement already satisfied: logzero in c:\python27\lib\site-packages