Python 2.2 as installed by Apple has a version of _Res that is too old. We

jackjansen · jackjansen · commit 180ceedc0930 · 2002-11-15T00:06:52.000Z
attempt to load an override version in this case.
diff --git a/Mac/Lib/Carbon/Res.py b/Mac/Lib/Carbon/Res.py
@@ -1 +1,4 @@
-from _Res import *
+try:
+	from OverrideFrom23._Res import *
+except ImportError:
+	from _Res import *
