Strip debug-build refcount output from stderr.

*encoding* determines the encoding used to interpret any :class:`str` objects decoded by this instance (``'utf-8'`` by defaul

Constructor for JSONEncoder, with sensible defaults. If skipkeys is false, then it is a TypeError to attempt encoding of keys that ar

Encode data and verify the result round-trips correctly.

Backport of the integer string length conversion limitation https://docs.python.org/3/library/stdtypes.html#int-max-str-digits

Implement this method in a subclass such that it returns a serializable object for ``o``, or calls the base implementation (to raise a

Serialize ``obj`` as a JSON formatted stream to ``fp`` (a ``.write()``-supporting file-like object). If *skipkeys* is true then ``dict`` keys