diff --git a/Lib/imputil.py b/Lib/imputil.py
index 675a634..0eba435 100644
--- a/Lib/imputil.py
+++ b/Lib/imputil.py
@@ -9,6 +9,9 @@
 
     DynLoadSuffixImporter
 """
+from warnings import warnpy3k
+warnpy3k("the imputil module has been removed in Python 3.0", stacklevel=2)
+del warnpy3k
 
 # note: avoid importing non-builtin modules
 import imp                      ### not available in JPython?