Add renaming notices to 3.0 http package members.
diff --git a/Doc/library/cookielib.rst b/Doc/library/cookielib.rst
index 4a91953..bf166f6 100644
--- a/Doc/library/cookielib.rst
+++ b/Doc/library/cookielib.rst
@@ -1,4 +1,3 @@
-
 :mod:`cookielib` --- Cookie handling for HTTP clients
 =====================================================
 
@@ -7,6 +6,11 @@
 .. moduleauthor:: John J. Lee <jjl@pobox.com>
 .. sectionauthor:: John J. Lee <jjl@pobox.com>
 
+.. note::
+   The :mod:`cookielib` module has been renamed to :mod:`http.cookiejar` in
+   Python 3.0.  The :term:`2to3` tool will automatically adapt imports when
+   converting your sources to 3.0.
+
 
 .. versionadded:: 2.4