[Python-3000] metaclass syntax [was: Discussions with no PEPs]
jimjjewett at gmail.com
Thu Mar 15 14:45:59 CET 2007
(reasons to use a custom dict, other than ordering)
> > (1) immutable class dictionaries. These are typical for
> > extension classes, but a real pain for python classes.
> > (2) almost-immutable -- with callbacks when values are
> > added/changed/deleted.
> > (3) actually-private variables
On 3/9/07, Guido van Rossum <guido at python.org> wrote:
> Those look like use cases for metaclasses, but I don't see how
> they require setting a custom dict *while the class suite is being
I was thinking too much of attempts to subclass module. The newly
created objects retain a reference to the original dictionary as their
globals. I should at least have made that assumption clear.
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