Loop Else¶

Python loops support an optional else clause.

The else block runs only if the loop completes normally.

If a break statement occurs, the else block is skipped.

Example¶

numbers = [1,3,5,7]

for num in numbers:

    if num == 4:
        print("Found")
        break

else:
    print("4 not found")

Output:

4 not found

def find_number(nums,target):

    for num in nums:

        if num == target:
            return True

    else:
        return False

This pattern cleanly expresses search logic.