That defense doesn't really hold up. len() makes no sense for numbers, booleans, None, and probably other types I cannot think of at the moment. Python has a

That defense doesn't really hold up. len() makes no sense for numbers, booleans, None, and probably other types I cannot think of at the moment. Python has a LONG list of built in functions, most of which are only applicable to a few types of parameters. They could just as well be object methods. https://docs.python.org/3/library/functions.html https://docs.python.org/3/library/functions.html Some of those methods, like sorted(), are terrible names. A past tense verb name... so instead of telling Python, "Hey, please sort() this", you say "Please give me a sorted() thing". So you have the collection.sort() method or the built in sorted() method. They both sort, but they have different options; and significantly, sort() mutates the collection, whereas sorted() returns a new collection. This is inconsistent and creates unnecessary cognitive load. It's another example of a Frankenstein language.