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

Posted by Tendai Ngaza
Tendai Ngaza
877 Points

value error not changing color and is my solution wrong ?

my valueerror is not changing color.. is there something im doing wrong coz when i ask it to check my work it just says bummer

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

1 Answer

Rich Zimmerman
Rich Zimmerman
24,063 Points
Rich Zimmerman
Rich Zimmerman
24,063 Points

Try/except/else blocks have to have the same indentation. Basically what python thing its happening is you're putting your except block INSIDE of your try block.

You're also not returning a + b in your try block, instead you have it in your "else" block. So when your code runs, you won't return a + b unless your try block fails, and a ValueError is not being thrown. Check out what i have and see the difference in indentation from your code.

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