Access checks now work, at least for instance data (not for methods
yet).  The class is now passed to eval_code and stored in the current
frame.  It is also stored in instance method objects.  An "unbound"
instance method is now returned when a function is retrieved through
"classname.funcname", which when called passes the class to eval_code.
diff --git a/Python/bltinmodule.c b/Python/bltinmodule.c
index 3d9504b..c2c2966 100644
--- a/Python/bltinmodule.c
+++ b/Python/bltinmodule.c
@@ -212,7 +212,7 @@
 	}
 	if (is_codeobject(str))
 		return eval_code((codeobject *) str, globals, locals,
-				 (object *)NULL);
+				 (object *)NULL, (object *)NULL);
 	s = getstringvalue(str);
 	if (strlen(s) != getstringsize(str)) {
 		err_setstr(ValueError, "embedded '\\0' in string arg");