Introduction to the Walrus Operator

The Walrus Operator (:=) allows you to assign and evaluate a value in a single expression. This makes your code more concise and readable.

In this lesson, you’ll learn how to use the Walrus Operator effectively in Python.

What is the Walrus Operator?

The Walrus Operator (:=) is used to assign a value to a variable as part of an expression. It was introduced in Python 3.8.

For example:

# Example of Walrus Operator
if (n := len([1, 2, 3, 4])) > 3:
    print(f"List length is {n}")