Serhiy Storchaka added the comment:
The json module already has too many options. No need for yet one such
specialized.
>>> class number_str(float):
... def __init__(self, o):
... self.o = o
... def __repr__(self):
... return str(self.o)
...
>>> def decimal_serializer(o):
... if isinstance(o, decimal.Decimal):
... return number_str(o)
... raise TypeError(repr(o) + " is not JSON serializable")
...
>>> print(json.dumps([decimal.Decimal('0.20000000000000001')],
>>> default=decimal_serializer))
[0.20000000000000001]
You can extend this to support complex numbers, fractions, date and time, and
many other custom types. Have specialized options for this would be cumbersome.
----------
nosy: +serhiy.storchaka
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<http://bugs.python.org/issue16535>
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