=== modified file 'Lib/locale.py'
--- Lib/locale.py	2008-04-01 09:16:31 +0000
+++ Lib/locale.py	2008-04-01 11:05:57 +0000
@@ -138,7 +138,7 @@
     additional is for format strings which contain one or more
     '*' modifiers."""
     # this is only for one-percent-specifier strings and this should be checked
-    if percent[0] != '%':
+    if percent[0] != '%' or percent[-1] not in 'diouxXeEfFgGcrs':
         raise ValueError("format() must be given exactly one %char "
                          "format specifier")
     if additional: