FizzBuzz in Python.

The program

Press Run to see what it prints. Change anything you like, then run it again.

for n in range(1, 21):
    if n % 15 == 0:
        print("FizzBuzz")
    elif n % 3 == 0:
        print("Fizz")
    elif n % 5 == 0:
        print("Buzz")
    else:
        print(n)

1
2
Fizz
4
Buzz
Fizz
7
8
Fizz
Buzz
11
Fizz
13
14
FizzBuzz
16
17
Fizz
19
Buzz

How it works

1. FizzBuzz is a famous warm-up problem. The order of the checks matters: the test for 15 comes first, because multiples of 15 are multiples of both 3 and 5.
2. elif means 'else, if': the next test only runs if the earlier ones failed.
3. Try moving the n % 15 test to the end and see what changes.

Try this

• Change Fizz and Buzz to your own words.
• Use 4 and 7 instead of 3 and 5.
• Count up to 100.

Stuck on an error? Read how to debug Python.