Fair point, but it is possible this isn't a list but rather some sort of iterable. Those can be boundless. Practically speaking, that would be pretty unusual.

Fair point, but it is possible this isn't a list but rather some sort of iterable. Those can be boundless. Practically speaking, that would be pretty unusual. I don't think I've ever seen that sort of construct in my day to day coding (which could realistically have more than 1B elements).