Merged revisions 69466,69480 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

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  r69466 | raymond.hettinger | 2009-02-09 12:39:41 -0600 (Mon, 09 Feb 2009) | 3 lines

  Issue 5171: itertools.product docstring missing 'repeat' argument
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  r69480 | raymond.hettinger | 2009-02-09 19:24:05 -0600 (Mon, 09 Feb 2009) | 1 line

  Issue 1818: collections.namedtuple() to support automatic renaming of invalid fieldnames.
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diff --git a/Modules/itertoolsmodule.c b/Modules/itertoolsmodule.c
index 58c30f9..9245b1f 100644
--- a/Modules/itertoolsmodule.c
+++ b/Modules/itertoolsmodule.c
@@ -1791,6 +1791,9 @@
 The leftmost iterators are in the outermost for-loop, so the output tuples\n\
 cycle in a manner similar to an odometer (with the rightmost element changing\n\
 on every iteration).\n\n\
+To compute the product of an iterable with itself, specify the number\n\
+of repetitions with the optional repeat keyword argument. For example,\n\
+product(A, repeat=4) means the same as product(A, A, A, A).\n\n\
 product('ab', range(3)) --> ('a',0) ('a',1) ('a',2) ('b',0) ('b',1) ('b',2)\n\
 product((0,1), (0,1), (0,1)) --> (0,0,0) (0,0,1) (0,1,0) (0,1,1) (1,0,0) ...");