STINNER Victor added the comment: When Python is compiled by Visual Studio 10 in PGUpdate mode, duplicated functions are merged to become the same unique function. The C code of wrap_binaryfunc() and wrap_binaryfunc_l() functions is the same and so both functions get the same address.
For "class List(list): pass", type_new() fills type->tp_as_number->nb_add to list_concat() because "d->d_base->wrapper == p->wrapper" is True whereas it should be False (wrap_binaryfunc vs wrap_binaryfunc_l). A workaround is to use a different code for wrap_binaryfunc() and wrap_binaryfunc_l(). A real fix is to use something else than the address of the wrapper to check the type of the operator (left, right, or the 3rd type). ---------- nosy: +haypo _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue8847> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
