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

Moses Lagoon
PLUS
Moses Lagoon
Courses Plus Student 660 Points
Posted by Moses Lagoon
Moses Lagoon
Courses Plus Student 660 Points

Doing this for try catch of the exceptions and it's not working.

def add(x,y): try: nx = float(x) ny = float(y) except valueError: return None else: return(nx + ny)

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

2 Answers

Jeremy Hill
Jeremy Hill
29,567 Points
Jeremy Hill
Jeremy Hill
29,567 Points

There is multiple ways that you can write this and I'm almost 100 percent sure someone will gig me for not showing you a quicker way to write this lol but I think this is a better way to show beginners as it seems a little easier to comprehend what is going on, with all that said here is the code:

def add(arg1, arg2):

    try:

        arg_float1 = float(arg1)
        arg_float2 = float(arg2)

    except ValueError:
        return None
    else:

        return arg_float1 + arg_float2
Jeremy Hill
Jeremy Hill
29,567 Points

As I now look at your code closely you just need to remove your parenthesis lol.