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 (2015) Logic in Python Try and Except

Posted by Cool Broz
.a{fill-rule:evenodd;}techdegree
Cool Broz
Python Web Development Techdegree Student 724 Points

try and except

challenge task 3 there is an error name Error : name'add' is not defined

trial.py 
def add(num1,num2):
    try:
        num1 = float(num1)
        num2 = float(num2)
    except valueError:
        return None
    else:
        return (num1+num2)

sum= add(2,2)
print(sum)

1 Answer

Henrik Christensen
seal-mask
.a{fill-rule:evenodd;}techdegree
Henrik Christensen
Python Web Development Techdegree Student 38,322 Points
Henrik Christensen
.a{fill-rule:evenodd;}techdegree
Henrik Christensen
Python Web Development Techdegree Student 38,322 Points

You are not told to add this:

sum= add(2,2)
print(sum)

this will make the challenge fail because the challenges are very strict about not adding anything extra.