I specifically said "preferably" for this reason, and there always will be more than one way to do it, so obvious is implied. This change explicitly creates a

I specifically said "preferably" for this reason, and there always will be more than one way to do it, so obvious is implied. This change explicitly creates a situation where you have two equivalent obvious ways to do one thing, dict.update() and dict.|=, and is the latest in a string of such changes. I personally _like_ this change, but python used to be much more conservative.