[issue18015] python 2.7.5 fails to unpickle namedtuple pickled by 2.7.3 or 2.7.4

[Ralf Schmitt]

Changes by Ralf Schmitt <python-bugs at systemexit.de>:


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nosy: +schmir

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue18015>
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