diff --git a/Doc/includes/noddy.c b/Doc/includes/noddy.c
index ec2d669..26a49a9 100644
--- a/Doc/includes/noddy.c
+++ b/Doc/includes/noddy.c
@@ -7,47 +7,48 @@
 
 static PyTypeObject noddy_NoddyType = {
     PyObject_HEAD_INIT(NULL)
-    0,                         /*ob_size*/
-    "noddy.Noddy",             /*tp_name*/
-    sizeof(noddy_NoddyObject), /*tp_basicsize*/
-    0,                         /*tp_itemsize*/
-    0,                         /*tp_dealloc*/
-    0,                         /*tp_print*/
-    0,                         /*tp_getattr*/
-    0,                         /*tp_setattr*/
-    0,                         /*tp_compare*/
-    0,                         /*tp_repr*/
-    0,                         /*tp_as_number*/
-    0,                         /*tp_as_sequence*/
-    0,                         /*tp_as_mapping*/
-    0,                         /*tp_hash */
-    0,                         /*tp_call*/
-    0,                         /*tp_str*/
-    0,                         /*tp_getattro*/
-    0,                         /*tp_setattro*/
-    0,                         /*tp_as_buffer*/
-    Py_TPFLAGS_DEFAULT,        /*tp_flags*/
+    "noddy.Noddy",             /* tp_name */
+    sizeof(noddy_NoddyObject), /* tp_basicsize */
+    0,                         /* tp_itemsize */
+    0,                         /* tp_dealloc */
+    0,                         /* tp_print */
+    0,                         /* tp_getattr */
+    0,                         /* tp_setattr */
+    0,                         /* tp_compare */
+    0,                         /* tp_repr */
+    0,                         /* tp_as_number */
+    0,                         /* tp_as_sequence */
+    0,                         /* tp_as_mapping */
+    0,                         /* tp_hash  */
+    0,                         /* tp_call */
+    0,                         /* tp_str */
+    0,                         /* tp_getattro */
+    0,                         /* tp_setattro */
+    0,                         /* tp_as_buffer */
+    Py_TPFLAGS_DEFAULT,        /* tp_flags */
     "Noddy objects",           /* tp_doc */
 };
 
-static PyMethodDef noddy_methods[] = {
-    {NULL}  /* Sentinel */
+static PyModuleDef noddymodule = {
+    PyModuleDef_HEAD_INIT,
+    "noddy",
+    "Example module that creates an extension type.",
+    -1,
+    NULL, NULL, NULL, NULL, NULL
 };
 
-#ifndef PyMODINIT_FUNC	/* declarations for DLL import/export */
-#define PyMODINIT_FUNC void
-#endif
 PyMODINIT_FUNC
-initnoddy(void) 
+PyInit_noddy(void) 
 {
     PyObject* m;
 
     noddy_NoddyType.tp_new = PyType_GenericNew;
     if (PyType_Ready(&noddy_NoddyType) < 0)
-        return;
+        return NULL;
 
-    m = Py_InitModule3("noddy", noddy_methods,
-                       "Example module that creates an extension type.");
+    m = PyModule_Create(&noddymodule);
+    if (m == NULL)
+        return NULL;
 
     Py_INCREF(&noddy_NoddyType);
     PyModule_AddObject(m, "Noddy", (PyObject *)&noddy_NoddyType);
diff --git a/Doc/includes/noddy2.c b/Doc/includes/noddy2.c
index eaa355f..5daecf9 100644
--- a/Doc/includes/noddy2.c
+++ b/Doc/includes/noddy2.c
@@ -13,7 +13,7 @@
 {
     Py_XDECREF(self->first);
     Py_XDECREF(self->last);
-    self->ob_type->tp_free((PyObject*)self);
+    Py_TYPE(self)->tp_free((PyObject*)self);
 }
 
 static PyObject *
@@ -124,26 +124,26 @@
 
 static PyTypeObject NoddyType = {
     PyObject_HEAD_INIT(NULL)
-    0,                         /*ob_size*/
-    "noddy.Noddy",             /*tp_name*/
-    sizeof(Noddy),             /*tp_basicsize*/
-    0,                         /*tp_itemsize*/
-    (destructor)Noddy_dealloc, /*tp_dealloc*/
-    0,                         /*tp_print*/
-    0,                         /*tp_getattr*/
-    0,                         /*tp_setattr*/
-    0,                         /*tp_compare*/
-    0,                         /*tp_repr*/
-    0,                         /*tp_as_number*/
-    0,                         /*tp_as_sequence*/
-    0,                         /*tp_as_mapping*/
-    0,                         /*tp_hash */
-    0,                         /*tp_call*/
-    0,                         /*tp_str*/
-    0,                         /*tp_getattro*/
-    0,                         /*tp_setattro*/
-    0,                         /*tp_as_buffer*/
-    Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
+    "noddy.Noddy",             /* tp_name */
+    sizeof(Noddy),             /* tp_basicsize */
+    0,                         /* tp_itemsize */
+    (destructor)Noddy_dealloc, /* tp_dealloc */
+    0,                         /* tp_print */
+    0,                         /* tp_getattr */
+    0,                         /* tp_setattr */
+    0,                         /* tp_compare */
+    0,                         /* tp_repr */
+    0,                         /* tp_as_number */
+    0,                         /* tp_as_sequence */
+    0,                         /* tp_as_mapping */
+    0,                         /* tp_hash  */
+    0,                         /* tp_call */
+    0,                         /* tp_str */
+    0,                         /* tp_getattro */
+    0,                         /* tp_setattro */
+    0,                         /* tp_as_buffer */
+    Py_TPFLAGS_DEFAULT |
+        Py_TPFLAGS_BASETYPE,   /* tp_flags */
     "Noddy objects",           /* tp_doc */
     0,		               /* tp_traverse */
     0,		               /* tp_clear */
@@ -164,26 +164,25 @@
     Noddy_new,                 /* tp_new */
 };
 
-static PyMethodDef module_methods[] = {
-    {NULL}  /* Sentinel */
+static PyModuleDef noddy2module = {
+    PyModuleDef_HEAD_INIT,
+    "noddy2",
+    "Example module that creates an extension type.",
+    -1,
+    NULL, NULL, NULL, NULL, NULL
 };
 
-#ifndef PyMODINIT_FUNC	/* declarations for DLL import/export */
-#define PyMODINIT_FUNC void
-#endif
 PyMODINIT_FUNC
-initnoddy2(void) 
+PyInit_noddy2(void) 
 {
     PyObject* m;
 
     if (PyType_Ready(&NoddyType) < 0)
-        return;
+        return NULL;
 
-    m = Py_InitModule3("noddy2", module_methods,
-                       "Example module that creates an extension type.");
-
+    m = PyModule_Create(&noddy2module);
     if (m == NULL)
-      return;
+        return NULL;
 
     Py_INCREF(&NoddyType);
     PyModule_AddObject(m, "Noddy", (PyObject *)&NoddyType);
diff --git a/Doc/includes/noddy3.c b/Doc/includes/noddy3.c
index 3a1c0c2..39cdfdb 100644
--- a/Doc/includes/noddy3.c
+++ b/Doc/includes/noddy3.c
@@ -13,7 +13,7 @@
 {
     Py_XDECREF(self->first);
     Py_XDECREF(self->last);
-    self->ob_type->tp_free((PyObject*)self);
+    Py_TYPE(self)->tp_free((PyObject*)self);
 }
 
 static PyObject *
@@ -177,26 +177,26 @@
 
 static PyTypeObject NoddyType = {
     PyObject_HEAD_INIT(NULL)
-    0,                         /*ob_size*/
-    "noddy.Noddy",             /*tp_name*/
-    sizeof(Noddy),             /*tp_basicsize*/
-    0,                         /*tp_itemsize*/
-    (destructor)Noddy_dealloc, /*tp_dealloc*/
-    0,                         /*tp_print*/
-    0,                         /*tp_getattr*/
-    0,                         /*tp_setattr*/
-    0,                         /*tp_compare*/
-    0,                         /*tp_repr*/
-    0,                         /*tp_as_number*/
-    0,                         /*tp_as_sequence*/
-    0,                         /*tp_as_mapping*/
-    0,                         /*tp_hash */
-    0,                         /*tp_call*/
-    0,                         /*tp_str*/
-    0,                         /*tp_getattro*/
-    0,                         /*tp_setattro*/
-    0,                         /*tp_as_buffer*/
-    Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
+    "noddy.Noddy",             /* tp_name */
+    sizeof(Noddy),             /* tp_basicsize */
+    0,                         /* tp_itemsize */
+    (destructor)Noddy_dealloc, /* tp_dealloc */
+    0,                         /* tp_print */
+    0,                         /* tp_getattr */
+    0,                         /* tp_setattr */
+    0,                         /* tp_compare */
+    0,                         /* tp_repr */
+    0,                         /* tp_as_number */
+    0,                         /* tp_as_sequence */
+    0,                         /* tp_as_mapping */
+    0,                         /* tp_hash  */
+    0,                         /* tp_call */
+    0,                         /* tp_str */
+    0,                         /* tp_getattro */
+    0,                         /* tp_setattro */
+    0,                         /* tp_as_buffer */
+    Py_TPFLAGS_DEFAULT |
+        Py_TPFLAGS_BASETYPE,   /* tp_flags */
     "Noddy objects",           /* tp_doc */
     0,		               /* tp_traverse */
     0,		               /* tp_clear */
@@ -217,26 +217,25 @@
     Noddy_new,                 /* tp_new */
 };
 
-static PyMethodDef module_methods[] = {
-    {NULL}  /* Sentinel */
+static PyModuleDef noddy3module = {
+    PyModuleDef_HEAD_INIT,
+    "noddy3",
+    "Example module that creates an extension type.",
+    -1,
+    NULL, NULL, NULL, NULL, NULL
 };
 
-#ifndef PyMODINIT_FUNC	/* declarations for DLL import/export */
-#define PyMODINIT_FUNC void
-#endif
 PyMODINIT_FUNC
-initnoddy3(void) 
+PyInit_noddy3(void) 
 {
     PyObject* m;
 
     if (PyType_Ready(&NoddyType) < 0)
-        return;
+        return NULL;
 
-    m = Py_InitModule3("noddy3", module_methods,
-                       "Example module that creates an extension type.");
-
+    m = PyModule_Create(&noddy3module);
     if (m == NULL)
-      return;
+        return NULL;
 
     Py_INCREF(&NoddyType);
     PyModule_AddObject(m, "Noddy", (PyObject *)&NoddyType);
diff --git a/Doc/includes/noddy4.c b/Doc/includes/noddy4.c
index ac0b1f4..94507ec 100644
--- a/Doc/includes/noddy4.c
+++ b/Doc/includes/noddy4.c
@@ -47,7 +47,7 @@
 Noddy_dealloc(Noddy* self)
 {
     Noddy_clear(self);
-    self->ob_type->tp_free((PyObject*)self);
+    Py_TYPE(self)->tp_free((PyObject*)self);
 }
 
 static PyObject *
@@ -158,26 +158,27 @@
 
 static PyTypeObject NoddyType = {
     PyObject_HEAD_INIT(NULL)
-    0,                         /*ob_size*/
-    "noddy.Noddy",             /*tp_name*/
-    sizeof(Noddy),             /*tp_basicsize*/
-    0,                         /*tp_itemsize*/
-    (destructor)Noddy_dealloc, /*tp_dealloc*/
-    0,                         /*tp_print*/
-    0,                         /*tp_getattr*/
-    0,                         /*tp_setattr*/
-    0,                         /*tp_compare*/
-    0,                         /*tp_repr*/
-    0,                         /*tp_as_number*/
-    0,                         /*tp_as_sequence*/
-    0,                         /*tp_as_mapping*/
-    0,                         /*tp_hash */
-    0,                         /*tp_call*/
-    0,                         /*tp_str*/
-    0,                         /*tp_getattro*/
-    0,                         /*tp_setattro*/
-    0,                         /*tp_as_buffer*/
-    Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+    "noddy.Noddy",             /* tp_name */
+    sizeof(Noddy),             /* tp_basicsize */
+    0,                         /* tp_itemsize */
+    (destructor)Noddy_dealloc, /* tp_dealloc */
+    0,                         /* tp_print */
+    0,                         /* tp_getattr */
+    0,                         /* tp_setattr */
+    0,                         /* tp_compare */
+    0,                         /* tp_repr */
+    0,                         /* tp_as_number */
+    0,                         /* tp_as_sequence */
+    0,                         /* tp_as_mapping */
+    0,                         /* tp_hash  */
+    0,                         /* tp_call */
+    0,                         /* tp_str */
+    0,                         /* tp_getattro */
+    0,                         /* tp_setattro */
+    0,                         /* tp_as_buffer */
+    Py_TPFLAGS_DEFAULT |
+        Py_TPFLAGS_BASETYPE |
+        Py_TPFLAGS_HAVE_GC,    /* tp_flags */
     "Noddy objects",           /* tp_doc */
     (traverseproc)Noddy_traverse,   /* tp_traverse */
     (inquiry)Noddy_clear,           /* tp_clear */
@@ -198,26 +199,25 @@
     Noddy_new,                 /* tp_new */
 };
 
-static PyMethodDef module_methods[] = {
-    {NULL}  /* Sentinel */
+static PyModuleDef noddy4module = {
+    PyModuleDef_HEAD_INIT,
+    "noddy4",
+    "Example module that creates an extension type.",
+    -1,
+    NULL, NULL, NULL, NULL, NULL
 };
 
-#ifndef PyMODINIT_FUNC	/* declarations for DLL import/export */
-#define PyMODINIT_FUNC void
-#endif
 PyMODINIT_FUNC
-initnoddy4(void) 
+PyInit_noddy4(void) 
 {
     PyObject* m;
 
     if (PyType_Ready(&NoddyType) < 0)
-        return;
+        return NULL;
 
-    m = Py_InitModule3("noddy4", module_methods,
-                       "Example module that creates an extension type.");
-
+    m = PyModule_Create(&noddy4module);
     if (m == NULL)
-      return;
+        return NULL;
 
     Py_INCREF(&NoddyType);
     PyModule_AddObject(m, "Noddy", (PyObject *)&NoddyType);
diff --git a/Doc/includes/shoddy.c b/Doc/includes/shoddy.c
index 4c46bea..3757bca 100644
--- a/Doc/includes/shoddy.c
+++ b/Doc/includes/shoddy.c
@@ -32,7 +32,6 @@
 
 static PyTypeObject ShoddyType = {
     PyObject_HEAD_INIT(NULL)
-    0,                       /* ob_size */
     "shoddy.Shoddy",         /* tp_name */
     sizeof(Shoddy),          /* tp_basicsize */
     0,                       /* tp_itemsize */
@@ -52,7 +51,7 @@
     0,                       /* tp_setattro */
     0,                       /* tp_as_buffer */
     Py_TPFLAGS_DEFAULT |
-      Py_TPFLAGS_BASETYPE,   /* tp_flags */
+        Py_TPFLAGS_BASETYPE, /* tp_flags */
     0,                       /* tp_doc */
     0,                       /* tp_traverse */
     0,                       /* tp_clear */
@@ -73,18 +72,26 @@
     0,                       /* tp_new */
 };
 
+static PyModuleDef shoddymodule = {
+    PyModuleDef_HEAD_INIT,
+    "shoddy",
+    "Shoddy module",
+    -1,
+    NULL, NULL, NULL, NULL, NULL
+};
+
 PyMODINIT_FUNC
-initshoddy(void)
+PyInit_shoddy(void)
 {
     PyObject *m;
 
     ShoddyType.tp_base = &PyList_Type;
     if (PyType_Ready(&ShoddyType) < 0)
-        return;
+        return NULL;
 
-    m = Py_InitModule3("shoddy", NULL, "Shoddy module");
+    m = PyModule_Create(&shoddymodule);
     if (m == NULL)
-        return;
+        return NULL;
 
     Py_INCREF(&ShoddyType);
     PyModule_AddObject(m, "Shoddy", (PyObject *) &ShoddyType);
diff --git a/Doc/includes/typestruct.h b/Doc/includes/typestruct.h
index 0afe375..f6451b9 100644
--- a/Doc/includes/typestruct.h
+++ b/Doc/includes/typestruct.h
@@ -34,21 +34,18 @@
 
     char *tp_doc; /* Documentation string */
 
-    /* Assigned meaning in release 2.0 */
     /* call function for all accessible objects */
     traverseproc tp_traverse;
 
     /* delete references to contained objects */
     inquiry tp_clear;
 
-    /* Assigned meaning in release 2.1 */
     /* rich comparisons */
     richcmpfunc tp_richcompare;
 
     /* weak reference enabler */
     long tp_weaklistoffset;
 
-    /* Added in release 2.2 */
     /* Iterators */
     getiterfunc tp_iter;
     iternextfunc tp_iternext;