Another dummy type.
Curious: Str didn't need me to put something in tp_new, but Null did.
Why the difference?
diff --git a/Modules/xxmodule.c b/Modules/xxmodule.c
index c312d2e..5f75b6c 100644
--- a/Modules/xxmodule.c
+++ b/Modules/xxmodule.c
@@ -260,6 +260,62 @@
0, /*tp_is_gc*/
};
+/* ---------- */
+
+static PyObject *
+null_richcompare(PyObject *self, PyObject *other, int op)
+{
+ Py_INCREF(Py_NotImplemented);
+ return Py_NotImplemented;
+}
+
+static PyTypeObject Null_Type = {
+ /* The ob_type field must be initialized in the module init function
+ * to be portable to Windows without using C++. */
+ PyObject_HEAD_INIT(NULL)
+ 0, /*ob_size*/
+ "xxmodule.Null", /*tp_name*/
+ 0, /*tp_basicsize*/
+ 0, /*tp_itemsize*/
+ /* methods */
+ 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 | Py_TPFLAGS_BASETYPE, /*tp_flags*/
+ 0, /*tp_doc*/
+ 0, /*tp_traverse*/
+ 0, /*tp_clear*/
+ null_richcompare, /*tp_richcompare*/
+ 0, /*tp_weaklistoffset*/
+ 0, /*tp_iter*/
+ 0, /*tp_iternext*/
+ 0, /*tp_methods*/
+ 0, /*tp_members*/
+ 0, /*tp_getset*/
+ &PyBaseObject_Type, /*tp_base*/
+ 0, /*tp_dict*/
+ 0, /*tp_descr_get*/
+ 0, /*tp_descr_set*/
+ 0, /*tp_dictoffset*/
+ 0, /*tp_init*/
+ 0, /*tp_alloc*/
+ PyType_GenericNew, /*tp_new*/
+ 0, /*tp_free*/
+ 0, /*tp_is_gc*/
+};
+
/* ---------- */
@@ -310,4 +366,9 @@
if (PyType_Ready(&Str_Type) < 0)
return;
PyModule_AddObject(m, "Str", (PyObject *)&Str_Type);
+
+ /* Add Null */
+ if (PyType_Ready(&Null_Type) < 0)
+ return;
+ PyModule_AddObject(m, "Null", (PyObject *)&Null_Type);
}