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

Posted by Michael Wong
Michael Wong
817 Points

This works in Workspace. I can't tell why this is not passing:

This works in Workspace, so I can't tell why this is not passing: Code snippett:

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

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

1 Answer

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,441 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,441 Points

When writing a function, the "inputs" come from the argument list. So "a" and "b" are already defined by the statement calling the function.

changing to a = float(a), etc. should fix it.

Michael Wong
Michael Wong
817 Points

Thank you Chris.