reverted distutils its 3.1 state. All new work is now happening in disutils2, and distutils is now feature-frozen.
diff --git a/Lib/distutils/dir_util.py b/Lib/distutils/dir_util.py
index 370025b..98e6252 100644
--- a/Lib/distutils/dir_util.py
+++ b/Lib/distutils/dir_util.py
@@ -4,7 +4,7 @@
 
 __revision__ = "$Id$"
 
-import os
+import os, sys
 from distutils.errors import DistutilsFileError, DistutilsInternalError
 from distutils import log