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

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  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/Modules/sha256module.c b/Modules/sha256module.c
index f81608c..5b49c9f 100644
--- a/Modules/sha256module.c
+++ b/Modules/sha256module.c
@@ -409,7 +409,7 @@
 {
     SHAobject *newobj;
 
-    if (((PyObject*)self)->ob_type == &SHA256type) {
+    if (Py_Type(self) == &SHA256type) {
         if ( (newobj = newSHA256object())==NULL)
             return NULL;
     } else {
@@ -536,8 +536,7 @@
 };
 
 static PyTypeObject SHA224type = {
-    PyObject_HEAD_INIT(NULL)
-    0,			/*ob_size*/
+    PyVarObject_HEAD_INIT(NULL, 0)
     "_sha256.sha224",	/*tp_name*/
     sizeof(SHAobject),	/*tp_size*/
     0,			/*tp_itemsize*/
@@ -571,8 +570,7 @@
 };
 
 static PyTypeObject SHA256type = {
-    PyObject_HEAD_INIT(NULL)
-    0,			/*ob_size*/
+    PyVarObject_HEAD_INIT(NULL, 0)
     "_sha256.sha256",	/*tp_name*/
     sizeof(SHAobject),	/*tp_size*/
     0,			/*tp_itemsize*/
@@ -689,10 +687,10 @@
 {
     PyObject *m;
 
-    SHA224type.ob_type = &PyType_Type;
+    Py_Type(&SHA224type) = &PyType_Type;
     if (PyType_Ready(&SHA224type) < 0)
         return;
-    SHA256type.ob_type = &PyType_Type;
+    Py_Type(&SHA256type) = &PyType_Type;
     if (PyType_Ready(&SHA256type) < 0)
         return;
     m = Py_InitModule("_sha256", SHA_functions);