Data model and attribute resolution in subclasses

Lele Gaifax lele at metapensiero.it
Mon Mar 2 05:25:25 EST 2020


Adam Preble <adam.preble at gmail.com> writes:

> On Sunday, March 1, 2020 at 3:08:29 PM UTC-6, Terry Reedy wrote:
>
>> Because BaseClass is the superclass of SubClass.
>
> So there's a mechanism for parent classes to know all their children?

Yes, you just used it, although you may have confused its meaning:

    >>> class Base:
    ...   pass
    ... 
    >>> class Derived(Base):
    ...   pass
    ... 
    >>> print(Base.__subclasses__())
    [<class '__main__.Derived'>]

ciao, lele.
-- 
nickname: Lele Gaifax | Quando vivrò di quello che ho pensato ieri
real: Emanuele Gaifas | comincerò ad aver paura di chi mi copia.
lele at metapensiero.it  |                 -- Fortunato Depero, 1929.



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