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Python Object-Oriented Python Advanced Objects Double

Posted by Frank Campos
Frank Campos
4,175 Points

what am I doing wrong?

Can someone explain to me what I am doing wrong?

doubler.py 
class Double(int):
    def __new__(args,**kwargs):
        self= int.__new__(*args, **kwargs) 

        self.Double = self*2
        return self.Double

1 Answer

Shavaune Shackleford
Shavaune Shackleford
9,161 Points

here you go:

class Double(int):

    def __new__(*args,**kwargs):
        self = int.__new__(*args, **kwargs) 

        return self * 2
Frank Campos
Frank Campos
4,175 Points

Thank you, It was so easy.

Chris Freeman
Chris Freeman
Treehouse Moderator 68,423 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,423 Points

To be correct, the __new__ method should have a cls as the first argument. See docs

class Double(int):
    def __new__(cls, *args,**kwargs):
        self = int.__new__(cls, *args, **kwargs) 
        return self * 2

A bug report has been sent to Kenneth Love.