An iterator in Python is an object that contains a countable number of elements that can be iterated upon. In simpler words, we can say that Iterators are objects that allow you to traverse through all the elements of a collection and return one element at a time.

What are Python iterators with example?

Iterator in python is an object that is used to iterate over iterable objects like lists, tuples, dicts, and sets. The iterator object is initialized using the iter() method. It uses the next() method for iteration. next ( __next__ in Python 3) The next method returns the next value for the iterable.

What are iterators and generators in Python?

Iterators are used mostly to iterate or convert other objects to an iterator using iter() function. Generators are mostly used in loops to generate an iterator by returning all the values in the loop without affecting the iteration of the loop. Iterator uses iter() and next() functions. Generator uses yield keyword.