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

Devan Laton
Devan Laton
502 Points

i don't understand why this isn't working

It's telling me that name 'number' is not defined. i know the error is on line 3 but i don't know what to do to fix it

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

1 Answer

Heidi Fryzell
.a{fill-rule:evenodd;}techdegree seal-36
Heidi Fryzell
Front End Web Development Treehouse Moderator 25,178 Points

Hi Micah,

The issue is on line 3.

You are are assigning the result of running the function to the result but when you are calling result you are passing in "number" as an argument and you need to pass in an actual number.

result = square(8)

If you use a number as an argument it should work.

Happy Coding!