How do I test if Python is installed on Windows (10), and run an exe to install it if its not installed?

All of the comments guided me to the right way to do it.

I used this great working code:

:: Check for Python Installation
python --version 3>NUL
if errorlevel 1 goto errorNoPython

:: Reaching here means Python is installed.
:: Execute stuff...

:: Once done, exit the batch file -- skips executing the errorNoPython section
goto:eof

:errorNoPython
echo.
echo Error^: Python not installed
"C:\Program Files\used\systems\innoventiq\accumanager\required\excutables\python-3.7.3-amd64.exe"

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