> This is the problem with python's conflation of iterable and iterator It really is not. It’s just a natural outcome of imperative langages. If operations can

> This is the problem with python's conflation of iterable and iterator It really is not. It’s just a natural outcome of imperative langages. If operations can have side-effects, then combinator behaviour will affect those side-effects. You could do the same with iterables with side-effecting iterations. It’s also perfectly logical to be able to iterate an iterator.