PEP 3123: Provide forward compatibility with Python 3.0, while keeping
backwards compatibility. Add Py_Refcnt, Py_Type, Py_Size, and
PyVarObject_HEAD_INIT.
diff --git a/PC/_msi.c b/PC/_msi.c
index f4af92a..7d60d08 100644
--- a/PC/_msi.c
+++ b/PC/_msi.c
@@ -417,8 +417,7 @@
 };
 
 static PyTypeObject record_Type = {
-	PyObject_HEAD_INIT(NULL)
-	0,			/*ob_size*/
+	PyVarObject_HEAD_INIT(NULL, 0)
 	"_msi.Record",		/*tp_name*/
 	sizeof(msiobj),	/*tp_basicsize*/
 	0,			/*tp_itemsize*/
@@ -584,8 +583,7 @@
 };
 
 static PyTypeObject summary_Type = {
-	PyObject_HEAD_INIT(NULL)
-	0,			/*ob_size*/
+	PyVarObject_HEAD_INIT(NULL, 0)
 	"_msi.SummaryInformation",		/*tp_name*/
 	sizeof(msiobj),	/*tp_basicsize*/
 	0,			/*tp_itemsize*/
@@ -733,8 +731,7 @@
 };
 
 static PyTypeObject msiview_Type = {
-	PyObject_HEAD_INIT(NULL)
-	0,			/*ob_size*/
+	PyVarObject_HEAD_INIT(NULL, 0)
 	"_msi.View",		/*tp_name*/
 	sizeof(msiobj),	/*tp_basicsize*/
 	0,			/*tp_itemsize*/
@@ -851,8 +848,7 @@
 };
 
 static PyTypeObject msidb_Type = {
-	PyObject_HEAD_INIT(NULL)
-	0,			/*ob_size*/
+	PyVarObject_HEAD_INIT(NULL, 0)
 	"_msi.Database",		/*tp_name*/
 	sizeof(msiobj),	/*tp_basicsize*/
 	0,			/*tp_itemsize*/
diff --git a/PC/_winreg.c b/PC/_winreg.c
index 920e1d1..9ddbb23 100644
--- a/PC/_winreg.c
+++ b/PC/_winreg.c
@@ -460,8 +460,7 @@
 /* The type itself */
 PyTypeObject PyHKEY_Type =
 {
-	PyObject_HEAD_INIT(0) /* fill in type at module init */
-	0,
+	PyVarObject_HEAD_INIT(0, 0) /* fill in type at module init */
 	"PyHKEY",
 	sizeof(PyHKEYObject),
 	0,