What exactly are iterator, iterable, and iteration?

Question

What is the most basic definition of \"iterable\", \"iterator\" and \"iteration\" in Python?

I have read multiple definitions but I am unable to identify the exact m

Answer 1

Iterables have a __iter__ method that instantiates a new iterator every time.

Iterators implement a __next__ method that returns individual items, and a __iter__ method that returns self .

Therefore, iterators are also iterable, but iterables are not iterators.

Luciano Ramalho, Fluent Python.