Issue #1066: implement PEP 3109, 2/3 of PEP 3134.
diff --git a/Mac/scripts/mkestrres.py b/Mac/scripts/mkestrres.py
index d423892..93af56e 100644
--- a/Mac/scripts/mkestrres.py
+++ b/Mac/scripts/mkestrres.py
@@ -33,7 +33,7 @@
 
 def Pstring(str):
     if len(str) > 255:
-        raise ValueError, 'String too large'
+        raise ValueError('String too large')
     return chr(len(str))+str
 
 def writeestr(dst, edict):