[docs] [issue23695] idiom for clustering a data series into n-length groups

[Paddy McCarthy]

Paddy McCarthy added the comment:

I like R. David Murray's suggestion, but I am also aware of how it works and so cannot judge how it would look to the intermediate Python programmer who knows iterators and zip, but is new to this grouper; (who I think should be the target audience).

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue23695>
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