added pointer to libimp.tex for __import__ example
diff --git a/Doc/tut/tut.tex b/Doc/tut/tut.tex
index 1822124..cf884c1 100644
--- a/Doc/tut/tut.tex
+++ b/Doc/tut/tut.tex
@@ -3474,7 +3474,8 @@
provides the default implementation, but more interesting, the various
steps it takes are available separately from the new built-in module
\code{imp}. (See the section on \code{imp} in the Library Reference
-Manual for more information on this module.)
+Manual for more information on this module -- it also contains a
+complete example of how to write your own \code{__import__} function.)
When you do \code{dir()} in a fresh interactive interpreter you will
see another ``secret'' object that's present in every module: