Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Python Python Basics Functions and Looping Create a Function

Why is this code wrong ? def square(number): return number * number result = return square (3)

def square(number):
     return  number * number
     result = return
 square (3)

2 Answers

So when you return something from a function, that allows you to use whatever you returned later on. In other words, "return" isn't used like a variable that stores something, it performs an action (which is why you got an error when you tried to store return inside a variable).

People most often will store whatever action they want to perform in a variable, and then return that variable. So if you stored number * number inside a variable, you could then return that variable whenever you run a function.


def square(number):
    result = number * number
    return  result

Thank you.

To store the return value of a function in a variable, do it like you would any other variable assignment. Place the variable on the left hand side, use the assignment operator, then the function call on the right hand side.

def square(number):
     return  number * number

result = square(3)

Thank you.