Configuring an object via a dictionary

[Tobiah]

I should mention that I wanted to answer your question,
but I wouldn't actually do this.  I'd rather opt for
your self.config = config solution.  The config options
should have their own namespace.

I don't mind at all referencing foo.config['option'],
or you could make foo.config an object by itself so
you can do foo.config.option.  You'd fill it's attributes
in the same way I suggested for your main object.