Python wrapper around RapidJSON. RapidJSON is an extremely fast C++ json serialization library.

We do not support legacy python versions, you will need to upgrade to Python 3 to use this library.

First install python-rapidjson:

$ pip install python-rapidjson

RapidJSON tries to be compatible with the standard library json module so it should be a drop in replacement. Basic usage looks like this:

>>> import rapidjson
>>> data = {'foo': 100, 'bar': 'baz'}
>>> rapidjson.dumps(data)
'{"bar":"baz","foo":100}'
>>> rapidjson.loads('{"bar":"baz","foo":100}')
{'bar': 'baz', 'foo': 100}

python-rapidjson tries to be as performant as possible while staying compatible with the json module. Here are our current benchmarks:

To run these tests yourself, clone the repo and run:

$ tox -e py34 -- -m benchmark

Here are things in the standard json library supports that we have decided not to support:

• separators argument. This is mostly used for pretty printing and not supported by RapidJSON so it isn't a high priority. We do support indent kwarg that would get you nice looking JSON anyways.
• Coercing keys when dumping. json will turn True into 'True' if you dump it out but when you load it back in it'll still be a string. We want the dump and load to return the exact same objects so we have decided not to do this coercing.