question not understood ?? why is this not correct; see code

Question

I seem to spend all of my time trying to understand the questions, the still seem to be written in a way that I can not comprehend.....
def add(arg1, arg2):
    try:
        float(arg1), float(arg2)
    except ValueError:
        return('None')
    else:
        return (float(arg1) + float(arg2))
```trial.py
def add(arg1, arg2):
    try:
        float(arg1), float(arg2)
    except ValueError:
        return('None')
    else:
        return (float(arg1) + float(arg2))
```

Seth Reece · Answer

Hi barrysw,
In your try block, you want to convert you args to float. You could do arg1 = float(arg1) or total = float(arg1) + float(agr2) Also, you don't need the extra parentheses in your return statement. return arg1 + arg2 should work fine if you convert them to floats in you try block.

Fabian George · Answer

Hey  barrysw,
I was having the same problem. Only thing you need to do to make your code work is  to remove the parentheses and single quotes around the None. 
python
def add(arg1, arg2):
    try:
        float(arg1), float(arg2)
    except ValueError:
        return None
    else:
        return (float(arg1) + float(arg2))

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barrysw

barrysw

question not understood ?? why is this not correct; see code

2 Answers

Seth Reece

Seth Reece

Fabian George

Fabian George