[issue13274] heapq pure python version uses islice without guarding for negative counts

[Raymond Hettinger]

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

The behavior is undefined for negative inputs, so implementations are free to the most expedient choices.

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priority: normal -> low

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue13274>
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