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!

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 (2015) Logic in Python Try and Except

Randell Purington
Randell Purington
9,992 Points

Task 3of3

Challenge Task 3 of 3

You're doing great! Just one more task but it's a bigger one. Right now, we turn everything into a float. That's great so long as we're getting numbers or numbers as a string. We should handle cases where we get a non-number, though. Add a try block before where you turn your arguments into floats. Then add an except to catch the possible ValueError. Inside the except block, return None. If you're following the structure from the videos, add an else: for your final return of the added floats.

I believe I have everything correct but keep getting an error.

def add (you, me)
    a = float(you)
    b = float(me)
    except ValueError:
    return None
    return True

1 Answer

Ken Alger
Ken Alger
Treehouse Teacher


Were you able to get this resolved?

There are several syntax errors such as indentation and a missing colon in your posted code and it isn't returning the required information either.

Double check that you are returning the you + me value in the necessary spots in the try block.