[issue5986] Avoid reversed() in Random.shuffle()

[Raymond Hettinger]

Raymond Hettinger <rhettinger at users.sourceforge.net> added the comment:

FWIW, the inefficiency is only in the loop setup, the time to call
reversed() and __reversed__().  The inner loop runs at the same speed
because xrange provides a __reversed__ iterator.

Please do not go through the standard library making these minor tweaks
without making sure there is a significant measured speed-up and do
consider the readability issue.

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resolution:  -> rejected
status: open -> closed

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