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From: Ian Kelly <ian.g.kelly@gmail.com>
Date: Tue, 23 Apr 2013 16:22:57 -0600
Subject: Re: What is the reason for defining classes within classes in Python?
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On Tue, Apr 23, 2013 at 3:50 PM, vasudevram <vasudevram@gmail.com> wrote:
>
> Hi list,
>
> I saw an example of defining a class within another class, here, in the docs for peewee, a simple ORM for Python:
>
> http://peewee.readthedocs.org/en/latest/peewee/quickstart.html
>
> In what way is this useful?

In that particular case they're just using it as a namespace.  Django
does the same thing.