I started using Python in 2012 at university. I have not gained familiarity with it's ecosystem yet but on codewars I have reached kata level 5.

At DigiVault the pipeline tests were written in python. The idea was to create a language separation between the testing code from the production code that was written in Java and TypeScript and re-use functions across tests for both the frontend and backend. The tool used to driving the frontend was playwright. I setup the tests for the frontend myself. I at the competency of python where I regularly use types but am unfamiliar with the core data science libraries.