[issue13589] Aifc low level serialization primitives fix

[Oleg Plakhotnyuk]

Changes by Oleg Plakhotnyuk <olegus8 at gmail.com>:


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title: Aifc float serialization fix -> Aifc low level serialization primitives fix

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue13589>
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