Merged revisions 72461 via svnmerge from

svn+ssh://pythondev@svn.python.org/python/trunk

........
  r72461 | benjamin.peterson | 2009-05-07 22:06:00 -0500 (Thu, 07 May 2009) | 1 line

  add _PyObject_LookupSpecial to handle fetching special method lookup
........

Objects/typeobject.c

@@ -1125,6 +1125,8 @@ PyType_IsSubtype(PyTypeObject *a, PyTypeObject *b)
      when the _PyType_Lookup() call fails;
 
    - lookup_method() always raises an exception upon errors.
+
+   - _PyObject_LookupSpecial() exported for the benefit of other places.
 */
 
 static PyObject *
@@ -1157,6 +1159,12 @@ lookup_method(PyObject *self, char *attrstr, PyObject **attrobj)
 	return res;
 }
 
+PyObject *
+_PyObject_LookupSpecial(PyObject *self, char *attrstr, PyObject **attrobj)
+{
+	return lookup_maybe(self, attrstr, attrobj);
+}
+
 /* A variation of PyObject_CallMethod that uses lookup_method()
    instead of PyObject_GetAttrString().	 This uses the same convention
    as lookup_method to cache the interned name string object. */