Raymond Hettinger <raymond.hettin...@gmail.com> added the comment: I'm just pointing out a problem. Lots of existing code uses the concrete API and that code can break subclasses of builtin types (possibly resulting in segfaults).
I don't really care what is done about it. I'm just observing that the current design of the concrete API is incompatible with subclassing of built-in types. A practical consequence is that I don't see how to write a fast, light C version of OrderedDict that would be safe from calls to PyDict_SetItem(). AFAICT, there is no mechanism for adding extra state to a built-in type and being able to guarantee even very simple invariants. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue10977> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
