Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Python Object-Oriented Python Advanced Objects Double

Posted by sandeep singh
sandeep singh
70 Points

Not Happening !

neither overriding happening nor instance is being created help me with some coding instructions !!!

doubler.py 
class Double(int):
    def __new__(item):
        super().__new__(item)
        return self.item

nmbr = Double(5)
frankgenova
.a{fill-rule:evenodd;}techdegree
frankgenova
Python Web Development Techdegree Student 15,616 Points

Hi Sandeep, If I am reading the same challenge as you, they want you to accept arguments and keywords. That would mean you want 

def __new__(*args, *kwargs):
#and then go from there

1 Answer

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,441 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,441 Points

As Frank mentioned, the parameters need to be *args, **kwargs. Calling the __new__ method returns an object. That object should be returned:

class Double(int):
    def __new__(*args, **kwargs):
        bob = super().__new__(*args, **kwargs)
        return bob

However, using super does not seem to work in this challenge (I've messaged Kenneth Love about it). Use the class name directly:

class Double(int):
    def __new__(*args, **kwargs):
        bob = int().__new__(*args, **kwargs)
        return bob

And you don't have to use "bob" :-)