FuJSON: less decimals, more fuzzy JSON
FuJSON is a Python module that allows to control the formatting of floats when JSON encoding, typically to dial down the number of decimals.
It builds on the standard library's json.JSONEncoder
and monkey-patches it to inject custom float formatting.
Usage
Simple dumps call:
>>> from fujson import dumps
>>> dumps({"x": 1.23456789}, float_format=".2f")
'{"x": 1.23}'
Reusable encoder:
>>> from fujson import FuJsonEncoder
>>> encoder = FuJsonEncoder(float_format=".2f")
>>> encoder.encode({"x": 1.23456789})
'{"x": 1.23}'
>>> encoder.encode([1.1, 2.22, 3.333, 4.4444])
'[1.10, 2.22, 3.33, 4.44]'
Do JSON dump with floats in scientific notation:
>>> from fujson import FuJsonEncoder
>>> encoder = FuJsonEncoder(float_format=".2e")
>>> encoder.encode([.123, 0.0000123, 12345678.9])
'[1.23e-01, 1.23e-05, 1.23e+07]'
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