Merged revisions 56467-56482 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/p3yk

................
  r56477 | martin.v.loewis | 2007-07-21 09:04:38 +0200 (Sa, 21 Jul 2007) | 11 lines

  Merged revisions 56466-56476 via svnmerge from
  svn+ssh://pythondev@svn.python.org/python/trunk

  ........
    r56476 | martin.v.loewis | 2007-07-21 08:55:02 +0200 (Sa, 21 Jul 2007) | 4 lines

    PEP 3123: Provide forward compatibility with Python 3.0, while keeping
    backwards compatibility. Add Py_Refcnt, Py_Type, Py_Size, and
    PyVarObject_HEAD_INIT.
  ........
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  r56478 | martin.v.loewis | 2007-07-21 09:47:23 +0200 (Sa, 21 Jul 2007) | 2 lines

  PEP 3123: Use proper C inheritance for PyObject.
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  r56479 | martin.v.loewis | 2007-07-21 10:06:55 +0200 (Sa, 21 Jul 2007) | 3 lines

  Add longintrepr.h to Python.h, so that the compiler can
  see that PyFalse is really some kind of PyObject*.
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  r56480 | martin.v.loewis | 2007-07-21 10:47:18 +0200 (Sa, 21 Jul 2007) | 2 lines

  Qualify SHIFT, MASK, BASE.
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  r56482 | martin.v.loewis | 2007-07-21 19:10:57 +0200 (Sa, 21 Jul 2007) | 2 lines

  Correctly refer to _ob_next.
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diff --git a/Objects/enumobject.c b/Objects/enumobject.c
index a456c9d..6997fdc 100644
--- a/Objects/enumobject.c
+++ b/Objects/enumobject.c
@@ -43,7 +43,7 @@
 	PyObject_GC_UnTrack(en);
 	Py_XDECREF(en->en_sit);
 	Py_XDECREF(en->en_result);
-	en->ob_type->tp_free(en);
+	Py_Type(en)->tp_free(en);
 }
 
 static int
@@ -68,7 +68,7 @@
 		return NULL;         
 	}
 
-	next_item = (*it->ob_type->tp_iternext)(it);
+	next_item = (*Py_Type(it)->tp_iternext)(it);
 	if (next_item == NULL)
 		return NULL;
 
@@ -105,8 +105,7 @@
 "for obtaining an indexed list: (0, seq[0]), (1, seq[1]), (2, seq[2]), ...");
 
 PyTypeObject PyEnum_Type = {
-	PyObject_HEAD_INIT(&PyType_Type)
-	0,                              /* ob_size */
+	PyVarObject_HEAD_INIT(&PyType_Type, 0)
 	"enumerate",                    /* tp_name */
 	sizeof(enumobject),             /* tp_basicsize */
 	0,                              /* tp_itemsize */
@@ -195,7 +194,7 @@
 {
 	PyObject_GC_UnTrack(ro);
 	Py_XDECREF(ro->seq);
-	ro->ob_type->tp_free(ro);
+	Py_Type(ro)->tp_free(ro);
 }
 
 static int
@@ -253,8 +252,7 @@
 };
 
 PyTypeObject PyReversed_Type = {
-	PyObject_HEAD_INIT(&PyType_Type)
-	0,                              /* ob_size */
+	PyVarObject_HEAD_INIT(&PyType_Type, 0)
 	"reversed",                     /* tp_name */
 	sizeof(reversedobject),         /* tp_basicsize */
 	0,                              /* tp_itemsize */