I think it might have been on this list, or possibly one of Python-Ideas or Python-Dev.
Somebody gave a quote about dynamic typing, along the lines of "Just because a language allows a lot of dynamic features, doesn't mean people's code uses a lot of dynamism." Does anyone remember this? My google-fu is failing me. -- Steven D'Aprano "Ever since I learned about confirmation bias, I've been seeing it everywhere." -- Jon Ronson -- https://mail.python.org/mailman/listinfo/python-list