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 Darren Maguire
Darren Maguire
2,009 Points

Try, except, else

I'm stumped. It looks correct to me, but I'm a bit lost. Any help?

trial.py 
def add (num1, num2):
    try:
        (float(num1) + float(num2))
    except: ValueError
        return None
    else:
        return add(1,2)

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

Try have a look at your except block (you have a miss-placed colon)

example

def add(num1, num2):
    try:
        num1 = float(num1)
        num2 = float(num2)
    except ValueError:  # notice the colon :-)
        return None
    else:
        return num1 + num2
Darren Maguire
Darren Maguire
2,009 Points

Hi Henrik,

I was able to retrieve the answer from another post in the end. Yup, that was were my error was located. So thanks for clearing it up for me!