For new-style classes, we can now test for tp_del instead of asking for a __del__ attribute, to see if there's a finalizer.
For new-style classes, we can now test for tp_del instead of asking
for a __del__ attribute, to see if there's a finalizer.

sk-/python2.7-type-annotator,sk-/python2.7-type-annotator,sk-/python2.7-type-annotator