Fizz Buzz in Python

Welcome to the Fizz Buzz in Python page! Here, you'll find the source code for this program as well as a description of how the program works.

Current Solution

for n in range(1, 101):
    if n % 3 == 0:
        print("FizzBuzz" if n % 5 == 0 else "Fizz")
        continue
    print("Buzz" if n % 5 == 0 else n)

Fizz Buzz in Python was written by:

• xPolar

This article was written by:

• Jeremy Grifski
• rzuckerm

If you see anything you'd like to change or update, please consider contributing.

How to Implement the Solution

Before we dig into the code too much, let's take a look at the rules:

If a number is divisible by 3, print the word 'Fizz' instead of the number. If the number is divisible by 5, print the word 'Buzz' instead of the number. Finally, if the number is divisible by both 3 and 5, print 'FizzBuzz' instead of the number. Otherwise, just print the number.

You can test for divisibility using the modulo operator. The modulo operator divides two numbers and yields the remainder, so i modulo j is 0 if i is divisible by j. In Python, this is written as i % j. Then, it's a simple matter of checking whether i % 3 == 0 or i % 5 == 0.

Code Style

You'll notice first how everything is properly indented. This is not just good code style, Python actually enforces it. There's no need to declare variables as Python is what's called a weakly typed language. That means it can figure out what type a variable should be on the fly.

The Loop

In the very first line, we'll notice a loop:

for n in range(1, 101):

Here, we loop through all the numbers from 1 to 100.

Control Flow

From there, we set the variable line to an empty string and begin our testing:

if n % 3 == 0:
    print("FizzBuzz" if n % 5 == 0 else "Fizz")
    continue
print("Buzz" if n % 5 == 0 else n)

If the number is divisible by 3, as explained above, we print the word "Fizz" if the number is also not divisible by 5; otherwise, we print the word "FizzBuzz". We skip the rest of the loop with the continue statement.

If it's divisible by 5, we print the word "Buzz"; otherwise, we print the number (n).

How to Run the Solution

To run the Fizz Buzz in Python program, grab a copy of the Python file from GitHub. After that, get the latest version of Python. Now, all you have to do is run the following from the command line:

python fizz-buzz.py

Alternatively, you can always copy the source code into an online Python interpreter and hit run.