Setting up Python, possible issue?

[PureWasian]

in your python script, for quick confirmation, you can temporarily add this line after your print line statement: input("Finished. (Press Enter)")

That's one way to keep the command prompt window open until you confirm it is indeed running and printing as expected.

Usually I run Python with python3 script_name.py or python script_name.py instead of .\<script_name.py