On 2/20/06, Dan Gass <[EMAIL PROTECTED]> wrote:
> Why not have the factory function take the key being looked up as an
> argument? Seems like there would be uses to customize the default based on
> the key. It also forces you to handle list factory functions and constant
> factory functions (amongst others) to be handled the same way:
>
> d.default_factory = lambda k : list()
> d.default_factory = lambda k : 0
Guido's currently backing "a subclass that implements __getitem__()
calling on_missing() and on_missing() ... calling default_factory
unless it's None". I think for 90% of the use-cases, you don't need a
key argument. If you do, you should subclass defaultdict and override
the on_missing() method.
STeVe
--
Grammar am for people who can't think for myself.
--- Bucky Katt, Get Fuzzy
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