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/iterobject.c b/Objects/iterobject.c
index 6c12b74..32b9f94 100644
--- a/Objects/iterobject.c
+++ b/Objects/iterobject.c
@@ -94,8 +94,7 @@
 };
 
 PyTypeObject PySeqIter_Type = {
-	PyObject_HEAD_INIT(&PyType_Type)
-	0,					/* ob_size */
+	PyVarObject_HEAD_INIT(&PyType_Type, 0)
 	"iterator",				/* tp_name */
 	sizeof(seqiterobject),			/* tp_basicsize */
 	0,					/* tp_itemsize */
@@ -199,8 +198,7 @@
 }
 
 PyTypeObject PyCallIter_Type = {
-	PyObject_HEAD_INIT(&PyType_Type)
-	0,					/* ob_size */
+	PyVarObject_HEAD_INIT(&PyType_Type, 0)
 	"callable-iterator",			/* tp_name */
 	sizeof(calliterobject),			/* tp_basicsize */
 	0,					/* tp_itemsize */
@@ -255,7 +253,7 @@
         
         assert(PyTuple_Check(args));
 
-	if (PyZipIter_Type.ob_type == NULL) {
+	if (Py_Type(&PyZipIter_Type) == NULL) {
 		if (PyType_Ready(&PyZipIter_Type) < 0)
 			return NULL;
 	}
@@ -370,8 +368,7 @@
 }
 
 static PyTypeObject PyZipIter_Type = {
-	PyObject_HEAD_INIT(0)
-	0,					/* ob_size */
+	PyVarObject_HEAD_INIT(0, 0)
 	"zipiterator",				/* tp_name */
 	sizeof(zipiterobject),			/* tp_basicsize */
 	0,					/* tp_itemsize */