bpo-35138: Added an example for timeit.timeit with callable arguments (GH-9787)
* Update timeit.rst
diff --git a/Doc/library/timeit.rst b/Doc/library/timeit.rst
index 8ca3703..ef7a4e4 100644
--- a/Doc/library/timeit.rst
+++ b/Doc/library/timeit.rst
@@ -44,8 +44,12 @@
>>> timeit.timeit('"-".join(map(str, range(100)))', number=10000)
0.23702679807320237
+A callable can also be passed from the :ref:`python-interface`::
-Note however that :mod:`timeit` will automatically determine the number of
+ >>> timeit.timeit(lambda: "-".join(map(str, range(100))), number=10000)
+ 0.19665591977536678
+
+Note however that :func:`.timeit` will automatically determine the number of
repetitions only when the command-line interface is used. In the
:ref:`timeit-examples` section you can find more advanced examples.