The difference with Python in Excel is that it works with Python embedded in LibreOffice. It can be used without external access.
GitHub: Amourspirit/python_libre_pythonista_ext: https://github.com/Amourspirit/python_libre_pythonista_ext
Introducing Python in LibreOffice Calc - YouTube: https://www.youtube.com/watch?v=AQLuSNHhUY4