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

Nick Conte
Nick Conte
412 Points
Posted by Nick Conte
Nick Conte
412 Points

I do not understand why my code won't go through.

Thank you for your help

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

1 Answer

Christian Mangeng
Christian Mangeng
15,970 Points
Christian Mangeng
Christian Mangeng
15,970 Points

Hi Nick,

this is how it should look like. Note that there are some indentation errors in your code. The try block checks if the passed in arguments x and y can be converted to floats. If that's not possible, None is returned. If it is possible, the result of the addition of the float numbers a and b is returned.

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