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

Ryan Sands
Ryan Sands
4,543 Points
Posted by Ryan Sands
Ryan Sands
4,543 Points

Not sure how to do this last step someone help!

Not sure how to do this

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

1 Answer

Seth Kroger
Seth Kroger
56,413 Points
Seth Kroger
Seth Kroger
56,413 Points

The last step is asking you to double the value before returning it. Since Double inherits from int you can use any of int's methods as well as operators (which are basically a special set of methods in Python), you can use the * operator to multiply by 2 like this:

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