__dict__s and types and maybe metaclasses...
Larry Bates
larry.bates at websafe.com
Wed May 2 17:24:27 EDT 2007
Adam Atlas wrote:
> Suppose I want to create a type (i.e. a new-style class via the usual
> `class blah(...)` mechanism) but, during the process of creating the
> type, I want to replace its __dict__ so I can override some behaviors
> during the initial assignment of its members. That is, I have `class
> blah(...): a = 123; b = 456; ...`, and I want to substitute my own
> dict subclass which will thus receive __setitem__(a, 123),
> __setitem__(b, 456), and so on.
>
> Is this possible? Maybe with metaclasses? I've experimented with them
> a bit, but I haven't found any setup that works.
>
I think that most people accomplish this by:
class blah:
__initial_values={'a': 123, 'b': 456}
def __init__(self):
self.__dict__.update(self.__initialvalues)
-Larry
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