[issue26828] Implement __length_hint__() on map() and filter() to optimize list(map) and list(filter)

[Raymond Hettinger]

Changes by Raymond Hettinger <raymond.hettinger at gmail.com>:


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resolution:  -> rejected
stage:  -> resolved
status: open -> closed

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue26828>
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