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

Posted by Carlos Zuluaga
Carlos Zuluaga
690 Points

What's wrong in this code?

I can't figure it out what's wrong in this code.

I'd appreciate your help.

trial.py 
def add(num1, num2):
    try:
    num1 = float(num1)
    num2 = float(num2)
    except ValueError:
        return None
    else:
    return num1 + num2
john larson
john larson
16,594 Points

the else might be redundant, but the challenge asks for it. Although it's interesting how Samuel made it work without one. Bringing the final return out to the same indent as try and except just makes it the next thing to happen. Fun stuff. :D

1 Answer

Samuel Ferree
Samuel Ferree
31,722 Points
Samuel Ferree
Samuel Ferree
31,722 Points

Python uses what's known as "significant whitespace." The indention isn't just there to make your code look pretty, it as a functional purpose.

You just need to indent the lines of code after your try statement, like so. (The else is also a bit redundant, so I've removed it)

def add(num1, num2):
  try:
    num1 = float(num1)
    num2 = float(num2)
  except ValueError:
    return None
  return num1 + num2
Carlos Zuluaga
Carlos Zuluaga
690 Points

Yes. I fixed the indention. Thanks for your help.