Michele Simionato wrote:
On Aug 5, 4:38 am, "Gabriel Genellina":
So the namespace that the metaclass receives when the class is created,
will be some kind of ordered dictionary?
Metaclasses are available for a long time ago, but the definition order is
lost right at the start, when the class body is executed. Will this step
be improved in Python 3.0 then?
Yep. See http://stacktrace.it/articoli/2008/01/metaclassi-python-3000
(I am working on an English translation these days,
but for the moment you can use Google Translator).
Bfiefly, as I understood the discussion some months ago: In 2.x, the
class body is executed in a local namespace implemented as a normal dict
and *then* passed to the metaclass. In 3.0, the metaclass gets brief
control *before* execution so, among other possibilities, it can
substitute an (insertion) ordered dict for the local namespace. I will
leave the details to Michele's article and its eventual translation.
tjr
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