Checking in the code for PEP 357.
This was mostly written by Travis Oliphant.
I've inspected it all; Neal Norwitz and MvL have also looked at it
(in an earlier incarnation).
diff --git a/Objects/intobject.c b/Objects/intobject.c
index d7a64be..86e2e8c 100644
--- a/Objects/intobject.c
+++ b/Objects/intobject.c
@@ -1069,6 +1069,7 @@
int_true_divide, /* nb_true_divide */
0, /* nb_inplace_floor_divide */
0, /* nb_inplace_true_divide */
+ (lenfunc)PyInt_AsSsize_t, /* nb_index */
};
PyTypeObject PyInt_Type = {