Added comments before recently added/assigned slots in the type object, so the backward compatibility issues will be easier to understand. I only added comments indicating additions and assignments back to Python 2.0.

/* This module provides the necessary stubs for when dynamic loading is
   not present. */

#include "Python.h"
#include "importdl.h"


const struct filedescr _PyImport_DynLoadFiletab[] = {
	{0, 0}
};