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

Gabriel Ogbonnaya
Gabriel Ogbonnaya
1,701 Points
Posted by Gabriel Ogbonnaya
Gabriel Ogbonnaya
1,701 Points

Stuck on this problem please help

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.

trial.py 
def add(gain,mike):
    try:
    except ValueError:
    return(None)
    else:
    return(float(gain) + float(mike))

1 Answer

Alex Koumparos
seal-mask
.a{fill-rule:evenodd;}techdegree
Alex Koumparos
Python Development Techdegree Student 36,887 Points
Alex Koumparos
.a{fill-rule:evenodd;}techdegree
Alex Koumparos
Python Development Techdegree Student 36,887 Points

Two people have already provided answers the last time you asked this question. One of them even gave you the exact answer.

If you're still confused, it would be better if you responded with what you are still confused about on that question rather than just asking the question again.