Add a usage note

2012-02-01 08:52:44 -08:00 · 2012-02-01 08:52:44 -08:00 · bdb7fe4c84
parent 1d4ae48f48
commit bdb7fe4c84
1 changed files with 5 additions and 0 deletions
--- a/Doc/library/itertools.rst
+++ b/Doc/library/itertools.rst
@ -590,6 +590,11 @@ loops that truncate the stream.
              for i in xrange(times):
                  yield object

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

 .. function:: starmap(function, iterable)