In PLC4X for every language we create Built Utils with a LanguageOutput Class and  Language Template Helper Class.

Specifically for Python we have the Python Basic Type:

https://docs.python.org/3/library/functions.html 

And additionally the Numpy Data Types:

https://numpy.org/doc/stable/user/basics.types.html

So currently we started, working on these base types.

Next step is to create first templates in Freemarker to generate the base classes.