[issue32099] Use range in itertools roundrobin recipe

[Raymond Hettinger]

Raymond Hettinger <raymond.hettinger at gmail.com> added the comment:

Really, I don't give a whit about the micro-benchmarks -- that completely misses the point.  The recipes are primarily intended to have educational value on ways to use itertools, deques, and whatnot.

For itertools, I'm satisfied with new variable name and the additional comment.  For collections, there is an open question about whether adding an extra example would make users better off.   Beyond that, I have little interest is exploring all the little variants or wasting further time on this (that is what ASPN, StackOverflow, and blog posts are for).

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<https://bugs.python.org/issue32099>
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