What is exact diffrence between iterator and generator?

Question

explain one example of iterator and generator?
why using iterator and generator? when using?

Answer 1

Iterators is sth you use to iterate aka LOOP through an object(could be a list, string, dict, tuple,etc)
A generator is an instant way to create values WHICH doesn’t take up memory unless you call it as opposed to a list, tuple, dict,..

Answer 2

give one example?

Answer 3

Iterators iterate over something existing.
Generators generate something new.