Implement PEP 3121: new module initialization and finalization API.

Modules/_bisectmodule.c

@@ -226,10 +226,21 @@ having to sort the list after each insertion. For long lists of items with\n\
 expensive comparison operations, this can be an improvement over the more\n\
 common approach.\n");
 
-PyMODINIT_FUNC
-init_bisect(void)
-{
-	PyObject *m;
 
-	m = Py_InitModule3("_bisect", bisect_methods, module_doc);
+static struct PyModuleDef _bisectmodule = {
+	PyModuleDef_HEAD_INIT,
+	"_bisect",
+	module_doc,
+	-1,
+	bisect_methods,
+	NULL,
+	NULL,
+	NULL,
+	NULL
+};
+
+PyMODINIT_FUNC
+PyInit__bisect(void)
+{
+	return PyModule_Create(&_bisectmodule);
 }