break and continue

break – stop the loop now

break jumps out of the loop immediately, even if there are more rounds left:

for number in range(1, 100):
    if number % 7 == 0:
        print("First multiple of 7 is", number)
        break

Output

First multiple of 7 is 7

continue – skip this round

continue skips the rest of the current round and goes straight to the next one:

for number in range(1, 11):
    if number % 3 == 0:
        continue
    print(number, end=" ")
print()

Output

1 2 4 5 7 8 10 

Numbers that divide by 3 were skipped. (end=" " makes print put a space instead of a new line.)

while True with break

A common pattern: loop forever, and break when you're done.

total = 0
while True:
    entry = input("Number (or 'stop'): ")
    if entry == "stop":
        break
    total += int(entry)
print("Total:", total)

Output (when you type 10, 20, 5, then stop)

Number (or 'stop'): 10
Number (or 'stop'): 20
Number (or 'stop'): 5
Number (or 'stop'): stop
Total: 35

Remember: break = leave the loop. continue = skip to the next round.