[docs] [issue18820] json.dump() ignores its 'default' option when serializing dictionary keys

[Berker Peksag]

Changes by Berker Peksag <berker.peksag at gmail.com>:


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assignee: docs at python -> 
components:  -Documentation
versions:  -Python 3.4

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue18820>
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