Issue #1717, stage 2: remove uses of tp_compare in Modules and most
Objects.
diff --git a/Modules/_csv.c b/Modules/_csv.c
index 430ccdc..5175e71 100644
--- a/Modules/_csv.c
+++ b/Modules/_csv.c
@@ -443,7 +443,7 @@
 	(printfunc)0,                           /* tp_print */
 	(getattrfunc)0,                         /* tp_getattr */
 	(setattrfunc)0,                         /* tp_setattr */
-	(cmpfunc)0,                             /* tp_compare */
+	0,                                      /* tp_compare */
 	(reprfunc)0,                            /* tp_repr */
 	0,                                      /* tp_as_number */
 	0,                                      /* tp_as_sequence */
@@ -864,7 +864,7 @@
 	(printfunc)0,                           /*tp_print*/
 	(getattrfunc)0,                         /*tp_getattr*/
 	(setattrfunc)0,                         /*tp_setattr*/
-	(cmpfunc)0,                             /*tp_compare*/
+	0,                                     /*tp_compare*/
 	(reprfunc)0,                            /*tp_repr*/
 	0,                                      /*tp_as_number*/
 	0,                                      /*tp_as_sequence*/
@@ -1286,7 +1286,7 @@
 	(printfunc)0,                           /*tp_print*/
 	(getattrfunc)0,                         /*tp_getattr*/
 	(setattrfunc)0,                         /*tp_setattr*/
-	(cmpfunc)0,                             /*tp_compare*/
+	0,                                      /*tp_compare*/
 	(reprfunc)0,                            /*tp_repr*/
 	0,                                      /*tp_as_number*/
 	0,                                      /*tp_as_sequence*/