parse_constant doesn't get called on 'null', 'true', 'false' since 3.1/2.7.
(e.g. :class:`float`).
*parse_constant*, if specified, will be called with one of the following
- strings: ``'-Infinity'``, ``'Infinity'``, ``'NaN'``, ``'null'``, ``'true'``,
- ``'false'``. This can be used to raise an exception if invalid JSON numbers
+ strings: ``'-Infinity'``, ``'Infinity'``, ``'NaN'``.
+ This can be used to raise an exception if invalid JSON numbers
are encountered.
If *strict* is false (``True`` is the default), then control characters
for JSON integers (e.g. float).
``parse_constant``, if specified, will be called with one of the
- following strings: -Infinity, Infinity, NaN, null, true, false.
+ following strings: -Infinity, Infinity, NaN.
This can be used to raise an exception if invalid JSON numbers
are encountered.