[Python-Dev] PEP: Adding data-type objects to Python
ronaldoussoren at mac.com
Thu Nov 2 22:38:08 CET 2006
On Nov 2, 2006, at 9:35 PM, Thomas Heller wrote:
> Ronald Oussoren schrieb:
>> On Oct 31, 2006, at 6:38 PM, Thomas Heller wrote:
>>> This mechanism is probably a hack because it'n not possible to add
>>> C accessible
>>> fields to type objects, on the other hand it is extensible (in
>>> principle, at least).
>> I better start rewriting PyObjC then :-). PyObjC stores some addition
>> information in the type objects that are used to describe Objective-C
>> classes (such as a reference to the proxied class).
>> IIRC This has been possible from Python 2.3.
> I assume you are referring to the code in pyobjc/Modules/objc/objc-
> If this really is reliable I should better start rewriting ctypes
> then ;-).
> Hm, I always thought there was some additional magic going on with
> objects, fields appended dynamically at the end or whatever.
There is such magic, but that magic was updated in Python 2.3 to
allow type-object extensions like this.
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