On Monday 15 February 2016 11:17, Herman wrote:
> I want to pass in the key to the default_factory of defaultdict
Just use a regular dict and define __missing__:
class MyDefaultDict(dict):
def __missing__(self, key):
return "We gotcha key %r right here!" % key
If you want a per-instance __missing__, do something like this:
class MyDefaultDict(dict):
def __init__(self, factory):
self._factory = factory
def __missing__(self, key):
return self._factory(self, key)
d = MyDefaultDict(lambda self, key: ...)
--
Steve
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