Add usage note

2012-02-01 09:07:40 -08:00 · 2012-02-01 09:07:40 -08:00 · fc3ba6b8fc
parent 4d82ade424
commit fc3ba6b8fc
1 changed files with 5 additions and 0 deletions
--- a/Doc/library/itertools.rst
+++ b/Doc/library/itertools.rst
@ -496,6 +496,11 @@ loops that truncate the stream.
              for i in range(times):
                  yield object

+   A common use for *repeat* is to supply a stream of constant values to *map*
+   or *zip*::
+
+      >>> list(map(pow, range(10), repeat(2)))
+      [0, 1, 4, 9, 16, 25, 36, 49, 64, 81]

 .. function:: starmap(function, iterable)