Raymond Hettinger <raymond.hettin...@gmail.com> added the comment: > By the way, PyList_SetItem() already has an > abstract counterpart called PyObject_SetItem(), > so changing this one seems useless.
The problem isn't a lack of available abstract functions. If some code uses PyObject_SetItem(), then it already works for both list and dict subclasses. The issue arises only for code that is already using PyDict_SetItem() or PyList_SetItem(). The concrete methods pre-date the abstract methods and pre-date the ability to subclass built-in types. Those concrete methods were never updated to reflect the new reality. They now only make sense for exact type matches because they know nothing about subclasses and their invariants. IOW, if some patch is accepted, it needs to be aimed at the concrete functions to make them subclass aware. ---------- _______________________________________ 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
