difficulty understanding add function

Question

i cant seem to add the 2 arguments
```trial.py
def add(name + product):
add()

return(name + product)
```

Juthawong Naisanguansee · Answer

Hi Tan ,
To create or define a function in python. We start with def keyword.
The Challenge ask to create add function that takes 2 argument so 
def add ( firstargument , secondargument ):
After that It ask you to add together as total and return so
return firstarugment  + secondargument;
So The First Step Look Like This :
python
def add ( number1 , number2 ):
    return number1 + number2

and then it ask you to convert it to float so that it can add the decimal number.
return float(firstargument) + float(secondargument)
So it look like this 
python
def add ( number1 , number2 ):
    return float(number1) + float(number2)

After that it ask you to use Try Except that will handling the error aka exception. If ValueError Exception Throws aka happen we handling it with Except Keyword and return none. If no exception happen return the total value.
So 
try :
     total = float(firstargument) + float(secondargument)
except :
     return None
else:
     return total
This is what we get in the final 
python
def add ( number1 , number2 ):
    try:
        total =  float(number1) + float(number2)
    except ValueError:
        return None
    else:
        return total

Thanks :)

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Shjoneman Tan

Shjoneman Tan

difficulty understanding add function

1 Answer

Juthawong Naisanguansee

Juthawong Naisanguansee