Use it in _gdbm, _lzma, and _ssl.

Author: ZeroIntensity

Modules/_gdbmmodule.c

@@ -122,12 +122,6 @@ newgdbmobject(_gdbm_state *state, const char *file, int flags, int mode)
 }
 
 /* Methods */
-static int
-gdbm_traverse(PyObject *op, visitproc visit, void *arg)
-{
-    Py_VISIT(Py_TYPE(op));
-    return 0;
-}
 
 static void
 gdbm_dealloc(PyObject *op)
@@ -714,7 +708,7 @@ static PyMethodDef gdbm_methods[] = {
 
 static PyType_Slot gdbmtype_spec_slots[] = {
     {Py_tp_dealloc, gdbm_dealloc},
-    {Py_tp_traverse, gdbm_traverse},
+    {Py_tp_traverse, _PyObject_VisitType},
     {Py_tp_methods, gdbm_methods},
     {Py_sq_contains, gdbm_contains},
     {Py_mp_length, gdbm_length},

Modules/_lzmamodule.c

@@ -882,13 +882,6 @@ static PyMethodDef Compressor_methods[] = {
     {NULL}
 };
 
-static int
-Compressor_traverse(PyObject *self, visitproc visit, void *arg)
-{
-    Py_VISIT(Py_TYPE(self));
-    return 0;
-}
-
 PyDoc_STRVAR(Compressor_doc,
 "LZMACompressor(format=FORMAT_XZ, check=-1, preset=None, filters=None)\n"
 "\n"
@@ -922,7 +915,7 @@ static PyType_Slot lzma_compressor_type_slots[] = {
     {Py_tp_methods, Compressor_methods},
     {Py_tp_new, Compressor_new},
     {Py_tp_doc, (char *)Compressor_doc},
-    {Py_tp_traverse, Compressor_traverse},
+    {Py_tp_traverse, _PyObject_VisitType},
     {0, 0}
 };
 
@@ -1328,13 +1321,6 @@ Decompressor_dealloc(PyObject *op)
     Py_DECREF(tp);
 }
 
-static int
-Decompressor_traverse(PyObject *self, visitproc visit, void *arg)
-{
-    Py_VISIT(Py_TYPE(self));
-    return 0;
-}
-
 static PyMethodDef Decompressor_methods[] = {
     _LZMA_LZMADECOMPRESSOR_DECOMPRESS_METHODDEF
     {NULL}
@@ -1369,7 +1355,7 @@ static PyType_Slot lzma_decompressor_type_slots[] = {
     {Py_tp_methods, Decompressor_methods},
     {Py_tp_new, _lzma_LZMADecompressor},
     {Py_tp_doc, (char *)_lzma_LZMADecompressor__doc__},
-    {Py_tp_traverse, Decompressor_traverse},
+    {Py_tp_traverse, _PyObject_VisitType},
     {Py_tp_members, Decompressor_members},
     {0, 0}
 };

Modules/_pickle.c

@@ -413,13 +413,6 @@ typedef struct {
 
 #define Pdata_CAST(op)  ((Pdata *)(op))
 
-static int
-Pdata_traverse(PyObject *self, visitproc visit, void *arg)
-{
-    Py_VISIT(Py_TYPE(self));
-    return 0;
-}
-
 static void
 Pdata_dealloc(PyObject *op)
 {
@@ -437,7 +430,7 @@ Pdata_dealloc(PyObject *op)
 
 static PyType_Slot pdata_slots[] = {
     {Py_tp_dealloc, Pdata_dealloc},
-    {Py_tp_traverse, Pdata_traverse},
+    {Py_tp_traverse, _PyObject_VisitType},
     {0, NULL},
 };
 

Modules/_ssl.c

@@ -5692,13 +5692,6 @@ _ssl_MemoryBIO_impl(PyTypeObject *type)
     return (PyObject *) self;
 }
 
-static int
-memory_bio_traverse(PyObject *self, visitproc visit, void *arg)
-{
-    Py_VISIT(Py_TYPE(self));
-    return 0;
-}
-
 static void
 memory_bio_dealloc(PyObject *op)
 {
@@ -5869,7 +5862,7 @@ static PyType_Slot PySSLMemoryBIO_slots[] = {
     {Py_tp_getset, memory_bio_getsetlist},
     {Py_tp_new, _ssl_MemoryBIO},
     {Py_tp_dealloc, memory_bio_dealloc},
-    {Py_tp_traverse, memory_bio_traverse},
+    {Py_tp_traverse, _PyObject_VisitType},
     {0, 0},
 };