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/Modules/_curses_panel.c b/Modules/_curses_panel.c
index 0acf3fd..5eb4cf8 100644
--- a/Modules/_curses_panel.c
+++ b/Modules/_curses_panel.c
@@ -56,7 +56,7 @@
 
 PyTypeObject PyCursesPanel_Type;
 
-#define PyCursesPanel_Check(v)	 ((v)->ob_type == &PyCursesPanel_Type)
+#define PyCursesPanel_Check(v)	 (Py_Type(v) == &PyCursesPanel_Type)
 
 /* Some helper functions. The problem is that there's always a window
    associated with a panel. To ensure that Python's GC doesn't pull
@@ -338,8 +338,7 @@
 /* -------------------------------------------------------*/
 
 PyTypeObject PyCursesPanel_Type = {
-    PyObject_HEAD_INIT(NULL)
-    0,			/*ob_size*/
+    PyVarObject_HEAD_INIT(NULL, 0)
     "_curses_panel.curses panel",	/*tp_name*/
     sizeof(PyCursesPanelObject),	/*tp_basicsize*/
     0,			/*tp_itemsize*/
@@ -458,7 +457,7 @@
     PyObject *m, *d, *v;
 
     /* Initialize object type */
-    PyCursesPanel_Type.ob_type = &PyType_Type;
+    Py_Type(&PyCursesPanel_Type) = &PyType_Type;
 
     import_curses();