#3522: zip() returns an iterator.
diff --git a/Doc/tutorial/datastructures.rst b/Doc/tutorial/datastructures.rst
index 623986e..a068efd 100644
--- a/Doc/tutorial/datastructures.rst
+++ b/Doc/tutorial/datastructures.rst
@@ -257,7 +257,7 @@
In real world, you should prefer builtin functions to complex flow statements.
The :func:`zip` function would do a great job for this use case::
- >>> zip(*mat)
+ >>> list(zip(*mat))
[(1, 4, 7), (2, 5, 8), (3, 6, 9)]
See :ref:`tut-unpacking-arguments` for details on the asterisk in this line.