help needed with python launcher

[snippsat]

to the scripts and the issue still exists

How are running the script.
Bye double-clicking on it,or do you use an other method?

It's normal that File Associations is set to your main version in Windows Path.
From cmd:

C:\Windows>cd ..

C:\>python -V
Python 3.7.1

C:\>pip -V
pip 18.1 from c:\python37\lib\site-packages\pip (python 3.7)

C:\>python -c "import sys; print(sys.executable)"
C:\python37\python.exe

So File Associations for .py files for me set to point to Python 3.7.
This can be changed to what you want as show in link over.
For basic setup of Python in Windows:
Python 3.6/3.7 and pip installation under Windows