[issue13340] list.index does not accept None as start or stop

[Éric Araujo]

Changes by Éric Araujo <merwok at netwok.org>:


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priority: high -> normal
stage: committed/rejected -> commit review
versions:  -Python 2.7, Python 3.2

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue13340>
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