Iterators and generators

About the Course

Python programmers use “for” loops all of the time. But how do these loops work? How is it that strings, lists, tuples, dicts, and files all work with loops, but give different values with each iteration? And how can we make our own classes iterable?

This course answers all of these questions, introducing Python’s “iterator protocol” and how you can use it to your benefit. First, we’ll look at how you can add iteration to your own classes. Then we’ll look at generators and generator functions, which allow us to create iterators using function syntax. The course ends with an introduction to generator comprehensions, which produce generators using code that’s similar to a list comprehension.