[Python-checkins] cpython (2.7): Add a usage note

[raymond.hettinger]

http://hg.python.org/cpython/rev/0c12790791e6
changeset:   74703:0c12790791e6
branch:      2.7
parent:      74695:822d7a1f8885
user:        Raymond Hettinger <python at rcn.com>
date:        Wed Feb 01 08:52:44 2012 -0800
summary:
  Add a usage note

files:
  Doc/library/itertools.rst |  5 +++++
  1 files changed, 5 insertions(+), 0 deletions(-)


diff --git a/Doc/library/itertools.rst b/Doc/library/itertools.rst
--- a/Doc/library/itertools.rst
+++ b/Doc/library/itertools.rst
@@ -590,6 +590,11 @@
               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)
 

-- 
Repository URL: http://hg.python.org/cpython