I've just left the question open, but the best learning material for me on this was this lecture. Other points down the list, I had to figure out just by trial

I've just left the question open, but the best learning material for me on this was this lecture. Other points down the list, I had to figure out just by trial and error. Raymond Hettinger, Keynote on Concurrency, PyBay 2017 https://www.youtube.com/watch?v=9zinZmE3Ogk https://www.youtube.com/watch?v=9zinZmE3Ogk