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

Posted by Sim Ar
Sim Ar
482 Points

I am stuck can't solve

Bummer! TypeError: catching classes that do not inherit from BaseException is not allowed when i check my thhis error popped out !!!

trial.py 
def add(apple,samsung):
    try:
        return float(apple) + float(samsung)
    except ValueError():
        return None
    else:
        print(apple + samsung)
Eric Harris
Eric Harris
2,391 Points
Eric Harris
Eric Harris
2,391 Points

I would try this:

Code Snippet Delete By Treehouse Community Moderator. "Giving" away answers without explanations as to why it is the correct answer and/or what was done incorrectly is strongly frowned upon in the Community.

1 Answer

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,426 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,426 Points

You are very close!

  • ValueError is used without the parens. With the parens it is a call to create a instant of the class ValueError, which, in this context, it fails the type expected in the except statement.
  • The final else should use a return instead a print.

Post back if you need more help. Good luck!!!