Every community have so way to speak or write fast about some common topic and that is good and useful thing. But can be problematic both to newcomers and experience members. Newcomers are lost because they don’t understand what going on, pros because flow of discussion is broken by people asking question like: What is AD? (Automatic Differentiation). I make this topic to minimizes such flow brakes.
In dissuasion about printing nested dicts, they said that it will be good to make "PR to improve upon it’’. What is PR?