[Python-Dev] Memory management question

I'm trying to port Don Beaudry's objectmodule to Python 2.0 and encountered the following problem. Here is a part from Don's code: co = (MetaClassObject*) PyClass_New(NULL, methods, name); co = PyObject_Realloc(co, sizeof (MetaClassObject)); As you see, he is trying to achive cheap code reuse. This code does not work. I have tracked it down to the following sample, which does also not work. In the debug version on windows, the PyObject_REALLOC fails with an assertion-error: _CrtIsValidHeapPointer(pUserData) op = PyObject_NEW(PyClassObject, &PyClass_Type); op = PyObject_REALLOC(op, sizeof(PyClassObject) + 20); Should the above work or am I doing something wrong? Regards, Thomas