Right, see my other comment: > Blowing up on `None` is an easy short-circuit. The thing being discussed is attempting to access deeply nested values, so short

Right, see my other comment: > Blowing up on `None` is an easy short-circuit. The thing being discussed is attempting to access deeply nested values, so short-circuiting here is a win-win. I.e., you wouldn't want to unnecessarily traverse tons of empty dictionaries using the `.get() or {}` trick.