break — Intermediate Playground

Exits the nearest enclosing for or while loop immediately

Python Playground

# Search with else
def find_prime_factor(n):
    for i in range(2, int(n**0.5) + 1):
        if n % i == 0:
            return i
    return n  # n is prime

# for/else: else runs only if loop completes without break
numbers = [15, 7, 20, 11]
for n in numbers:
    for i in range(2, n):
        if n % i == 0:
            print(f"{n} is composite (divisible by {i})")
            break
    else:
        print(f"{n} is prime")

Output

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The else clause of a for loop runs only when the loop finishes without hitting break. This is a clean search pattern.

Challenge

Try modifying the code above to explore different behaviors. Can you extend the example to handle a new use case?

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