Sigh. Strengthen the resriction of the previous checkin: tp_new is
inherited unless *both*: (a) the base type is 'object', and (b) the
subtype is not a "heap" type.
diff --git a/Objects/typeobject.c b/Objects/typeobject.c
index 7076b36..157f0c9 100644
--- a/Objects/typeobject.c
+++ b/Objects/typeobject.c
@@ -1152,7 +1152,8 @@
COPYSLOT(tp_dictoffset);
COPYSLOT(tp_init);
COPYSLOT(tp_alloc);
- if (type->tp_flags & Py_TPFLAGS_HEAPTYPE) {
+ if (base != &PyBaseObject_Type ||
+ (type->tp_flags & Py_TPFLAGS_HEAPTYPE)) {
COPYSLOT(tp_new);
}
COPYSLOT(tp_free);