[issue19202] Additions to function docs: reduce and itertools.

[Raymond Hettinger]

Raymond Hettinger added the comment:

Almost all of these make the docs worse and should not be applied.  The purpose of the "equivalent" code is simply to make the documentation clearer, not to show all the ways it could have been done.

I do think Georg's reduce() equivalent should be added because it is clearer than the current prose description.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue19202>
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