[Python-ideas] A user story concerning things knowing their own names
jimjjewett at gmail.com
Sat Mar 19 02:58:21 CET 2011
On Fri, Mar 18, 2011 at 9:37 PM, Greg Ewing <greg.ewing at canterbury.ac.nz> wrote:
> Guido van Rossum wrote:
>> There's another pattern where all class attributes that have a certain
>> property are also collected in a per-class datastructure,
> I think __addtoclass__ could cover those as well,
> if you can arrange for the relevant objects to inherit
> from a class having an appropriate __addtoclass__
How do you put an attribute (such as __addtoclass__ ) on a name? Or
are you proposing that the actual pattern be something more like:
And that normal initiation be handled either later, or as part of the
Doing this for every name seems likely to be wasteful. Doing it only
for certain initial values seems too magical.
Doing it only for certain attributes -- there still needs to be a way
to mark them, and I suppose we're back to either a decorator or a
special assignment operator.
What have I missed here?
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