[issue30063] DeprecationWarning in json/encoder.py

[Paul Durack]

Paul Durack added the comment:

@r.david.murray, is this not the stdlib?

https://github.com/python/cpython/blob/master/Lib/json/encoder.py#L182-L202

The error message appears to be pointing back to this, how (and why) it gets there (and what has changed recently so that this DeprecationWarning is being triggered) is the question that I am seeking answers..

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<http://bugs.python.org/issue30063>
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