TIL: Python's walrus operator `:=` can simplify while loops (2026)

TIL: Python's walrus operator := can simplify while loops
The walrus operator, introduced in Python 3.8, is a game-changer for simplifying while loops. It allows you to assign a value to a variable as part of a larger expression, making your code more concise and readable. The syntax is variable := value, and it can be used in if and while statements.

Before using the walrus operator, you might write a while loop like this:

n = 0
while n < 10:
    print(n)
    n += 1

But with the walrus operator, you can simplify it to:

python
while (n := n + 1) <

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