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Python Python Basics (2015) Logic in Python Try and Except

Posted by Ee Kok Yoong
Ee Kok Yoong
318 Points

What's wrong with this code?

couldn't find the solution

trial.py 
def add(a,b):
    try:
        a = int(a)
        b = int(b)
    
    except ValueError:
        return None
    a = float(a)
    b = float(b)
    return a + b

1 Answer

Stuart Wright
Stuart Wright
41,120 Points
Stuart Wright
Stuart Wright
41,120 Points

I think that your code should work but it includes an unnecessary step, which may be why it doesn't pass the challenge.

There is no need to convert a and b to integers. Simply convert them straight to float form inside your try block. Your except block is correct. Then just delete the float conversion statements at the end of your program because they are now unnecessary. The return statement is correct.

Ee Kok Yoong
Ee Kok Yoong
318 Points

Hi thanks a lot for taking your time to answer my doubt. Yeah initially what i did was putting the float instead of int. But it didn't work out. So it tried it out with int. After reading your answer i went back the question again. Redo it again. And it works. The reason why it didn't pass the challenges was because of the indentation at the last return there. notice that i didnt indent it initially. Anyway Thanks for your help :D