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Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today. # Create a Function python.....

What have I done wrong now??

squaring.py
```def square(number)
return square * 2
```

Hi Katrine Guirguis , a quick couple of fixes:

First, make sure when you're defining a function you end the definition statement with a colon ":" after the parenthesis:

```    def square(number):
```

Second, make sure that whatever parameter you assign in the arguments, you actually use that parameter in your return

```    def square(number):
return number * 2
```

Third, indentation is key. reference my example above to see how the return is nested.

Finally, a square number is a number multiplied to itself. so 6 * 6, 7 * 7, not 7 * 2. I would make sure your number multiplies itself:

```    def square(number):
return number * number
```

or

```    def square(number):
return number ** 2
```

I hope that helps! so i got as far as you explained but now i can figure out how to take the output and assign it to a variable called result... i tried the follow ing but it didnt work

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

square(3)

Jose Alvarez you would assign the result to a variable named response like so:

```def square(number):
# code inside here that does stuff

# this is how you would set response to be the return of the function
response = square(3)
```

when the function finishes its work and returns the value, that value will then be set to response