Mixin classes and single/multiple inheritance

[Ben Finney]

Michele Simionato <michele.simionato at gmail.com> writes:

> Ben Finney wrote:
> > What do you see as an appropriate use of mixin classes, and what
> > an abuse?
> 
> An example of fine usage of mixin is Tkinter; an example of bad
> usage if Zope 2.

Which parts of those two very large code sets do I need to look at to
see the examples you have in mind? I was hoping you could demonstrate
with short code examples.

-- 
 \          "One thing vampire children have to be taught early on is, |
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Ben Finney