Add a note about future import needed for with statement.
diff --git a/Doc/tut/tut.tex b/Doc/tut/tut.tex
index d6fc75b..374d194 100644
--- a/Doc/tut/tut.tex
+++ b/Doc/tut/tut.tex
@@ -3834,6 +3834,10 @@
objects which provide predefined clean-up actions will indicate
this in their documentation.
+\note{Since \keyword{with} is a new language keyword, it must be
+ enabled by executing \code{from __future__ import with_statement}
+ in Python 2.5. From 2.6 on, it will always be enabled.}
+
\chapter{Classes \label{classes}}