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Python Object-Oriented Python Advanced Objects Double

Matt Brake
Matt Brake
9,799 Points

Task 2 passes without overriding __new__()

Why does this pass even though I'm not overriding new()?

If I'm not doing this correctly what do I need to do?

doubler.py
class Double (int):
    def add(self, value):
        self += value
        return self

2 Answers

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,441 Points

Very interesting question! Without explicitly overwriting __init__, the inherited method int.__init__() will be run. Apparently, the running the inherited __init__ is sufficient to pass Task 2. But then you would end up explicitly adding the missing __init__ to solve Task 3.

Tagging Kenneth Love to review if having no __init__ present is Task 2 is acceptable.

Kenneth Love
STAFF
Kenneth Love
Treehouse Guest Teacher

That'll pass task 1 and 2 because those two tasks are just creating a subclass. Your add() is 100% superfluous and ignored in the challenge, btw.

Kenneth Love
Kenneth Love
Treehouse Guest Teacher

Added a check for def __new__ in step 2.