Introduction to Iterators and Iterables

Iterators and iterables are fundamental concepts in Python that allow you to work with sequences of data. They are the foundation of loops, comprehensions, and generators.

In this lesson, you’ll learn how iterators and iterables work and how to create your own iterators.

What Is an Iterable?

An iterable is any object in Python that can be looped over using a for loop. Examples include lists, tuples, sets, and dictionaries.

# Example of an iterable
my_list = [1, 2, 3]
for item in my_list:
    print(item)  # Outputs: 1, 2, 3