I don't know how to do the first part.I think that there could be different ways of doing it but none is accepted.

Question

I dont know how to turn every number into a float, in the try part.

trial.py

def add(num1, num2):
    num1=float(num1)
    num2=float(num2)
    return(num1+num2)

try:
    add(1,2)
except ValueError:
    return None
else: 
    return(num1+num2)

Answer 1 · 2018-04-25T14:43:22Z

April 25, 2018 2:43pm

Hi Pol,

First of all, this try/except/else code is going in your function so that your function itself can perform the exception handling. Right now you are attempting to handle a single call to the function.

When implementing the try/else/except block, remember that a try block is where you put an expression that could fail. Specifically, in this case, converting a value from an unknown type into a float. You've already demonstrated how to do that type conversion with your num1 = float(num1). Since this is the code that could fail, this is what we want to put in the try block. For example:

try:
    num1 = float(num1)
<etc>

Since we want to convert perform the same type conversion on both values, we can actually do it as a tuple:

(num1, num2) = (float(num1), float(num2))

Your remaining code, the except block and the else block both look fine already.

Cheers

Alex

Answer 2 · 2018-04-25T14:37:30Z

April 25, 2018 2:37pm

Hi Pol, I do not seem to understand the situation quite well...what you wrote in the try block does not relate much. Could you show me the question or what are the challenge so I can help you out :)

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Pol Marín

Pol Marín

I don't know how to do the first part.I think that there could be different ways of doing it but none is accepted.

2 Answers

Alex Koumparos

Alex Koumparos

Elgene Ee

Elgene Ee