[Python-Dev] Proposal: defaultdict

[Greg Ewing]

Bengt Richter wrote:

> My guess is that realistically default_factory will be used
> to make clean code for filling a dict, and then turning the factory
> off if it's to be passed into unknown contexts.

This suggests that maybe the autodict behaviour shouldn't
be part of the dict itself, but provided by a wrapper
around the dict.

The you can fill the dict through the wrapper, and still
have a normal dict underneath to use for other purposes.

Greg