Composition instead of inheritance

Ian Kelly ian.g.kelly at gmail.com
Fri Apr 29 06:23:14 CEST 2011


On Thu, Apr 28, 2011 at 11:15 AM, Ethan Furman <ethan at stoneleaf.us> wrote:
> For anybody interested in composition instead of multiple inheritance, I
> have posted this recipe on ActiveState (for python 2.6/7, not 3.x):
>
> http://code.activestate.com/recipes/577658-composition-of-classes-instead-of-multiple-inherit/
>
> Comments welcome!

On line 14, is it intentional that attributes whose values happen to
be false are not considered as conflicts?

On line 31, this code:

thing = getattr(thing, '__func__', None) or thing

could be simplified to this:

thing = getattr(thing, '__func__', thing)

Cheers,
Ian



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