[merge] LazyFactory

[Robert Collins]

On Tue, 2006-08-15 at 04:14 +0200, Adeodato Simó wrote:
> 
> Well, while I see your point, I think bool(self._dict) reads closer to
> "is this the first registered entry?", than checking _default_key. But
> if you're strong on having it with "_default_key is None", I don't
> object at all to changing it. 

I think 'registry.is_first_entry(an_entry)' is much clearer than
'bool(self._dict)'

bool(self._dict)' may be short, but its nearly 100% content-free.

-Rob
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