Import the MacOS toolbox modules from the Carbon package.
diff --git a/Mac/scripts/mkestrres.py b/Mac/scripts/mkestrres.py
index 3ed3b34..b0580a2 100644
--- a/Mac/scripts/mkestrres.py
+++ b/Mac/scripts/mkestrres.py
@@ -3,7 +3,7 @@
 import re
 import macfs
 import string
-import Res
+from Carbon import Res
 import os
 
 READ = 1