.. -- coding: utf-8 -- .. :Project: python-rapidjson -- Introduction .. :Author: Ken Robbins ken@kenrobbins.com .. :License: MIT License .. :Copyright: © 2015 Ken Robbins .. :Copyright: © 2016, 2017, 2018, 2020, 2022 Lele Gaifax ..
:Authors: Ken Robbins ken@kenrobbins.com; Lele Gaifax lele@metapensiero.it
:License: MIT License__
:Status: |build| |doc|
__ https://raw.githubusercontent.com/python-rapidjson/python-rapidjson/master/LICENSE .. |build| image:: https://travis-ci.org/python-rapidjson/python-rapidjson.svg?branch=master :target: https://travis-ci.org/python-rapidjson/python-rapidjson :alt: Build status .. |doc| image:: https://readthedocs.org/projects/python-rapidjson/badge/?version=latest :target: https://readthedocs.org/projects/python-rapidjson/builds/ :alt: Documentation status
RapidJSON_ is an extremely fast C++ JSON parser and serialization library: this module
wraps it into a Python 3 extension, exposing its serialization/deserialization (to/from
either bytes, str or file-like instances) and JSON Schema__ validation
capabilities.
Latest version documentation is automatically rendered by Read the Docs__.
__ http://json-schema.org/documentation.html __ https://python-rapidjson.readthedocs.io/en/latest/
First install python-rapidjson:
.. code-block:: bash
$ pip install python-rapidjson
or, if you prefer Conda__:
.. code-block:: bash
$ conda install -c conda-forge python-rapidjson
Basic usage looks like this:
.. code-block:: python
>>> import rapidjson
>>> data = {'foo': 100, 'bar': 'baz'}
>>> rapidjson.dumps(data)
'{"foo":100,"bar":"baz"}'
>>> rapidjson.loads('{"bar":"baz","foo":100}')
{'bar': 'baz', 'foo': 100}
>>>
>>> class Stream:
... def write(self, data):
... print("Chunk:", data)
...
>>> rapidjson.dump(data, Stream(), chunk_size=5)
Chunk: b'{"foo'
Chunk: b'":100'
Chunk: b',"bar'
Chunk: b'":"ba'
Chunk: b'z"}'
If you want to install the development version (maybe to contribute fixes or enhancements) you may clone the repository:
.. code-block:: bash
$ git clone --recursive https://github.com/python-rapidjson/python-rapidjson.git
.. note:: The --recursive option is needed because we use a submodule to
include RapidJSON_ sources. Alternatively you can do a plain
clone immediately followed by a git submodule update --init.
Alternatively, if you already have (a *compatible* version of)
RapidJSON includes around, you can compile the module specifying
their location with the option ``--rj-include-dir``, for example:
.. code-block:: shell
$ python3 setup.py build --rj-include-dir=/usr/include/rapidjson
A set of makefiles implement most common operations, such as build, check
and release; see make help output for a list of available targets.
python-rapidjson tries to be as performant as possible while staying
compatible with the json module.
See the this section__ in the documentation for a comparison with other JSON libraries.
__ https://python-rapidjson.readthedocs.io/en/latest/benchmarks.html
Although we tried to implement an API similar to the standard library json, being a
strict drop-in replacement in not our goal and we have decided to depart from there in
some aspects. See this section__ in the documentation for further details.
__ https://python-rapidjson.readthedocs.io/en/latest/quickstart.html#incompatibilities
.. _RapidJSON: http://rapidjson.org/
1.20 (2024-08-05)
* Rectify type hints if ``loads()`` and ``Decoder.__call__()`` (`issue #214`__)
__ https://github.com/python-rapidjson/python-rapidjson/issues/214
* Ensure ``Validator`` receives valid UTF-8 ``bytes``/``bytearray`` arguments
* Generate wheels on PyPI using Python 3.13.0rc1 release, thanks to cibuildwheel `2.20.0`__
__ https://cibuildwheel.pypa.io/en/stable/changelog/#v2200
1.19 (2024-07-28)
Properly dump subclasses of float with custom __repr__() method ( issue #213__)
__ https://github.com/python-rapidjson/python-rapidjson/issues/213
1.18 (2024-06-29)
* Expose PEP-484 typing stubs, thanks to Rodion Kosianenko and GoodWasHere (`PR #204`__)
__ https://github.com/python-rapidjson/python-rapidjson/pull/204
1.17 (2024-05-18)
Use current master__ version of rapidjson
Generate wheels on PyPI using Python 3.13b1 release, thanks to cibuildwheel 2.18.0__
1.16 (2024-02-28)
* Produce Python 3.8 wheels again, I deactivated it too eagerly, it's in *security fixes
only* mode, not yet reached its `end-of-life` state
1.15 (2024-02-28)
Honor the recursion limit__ also at parse time, to avoid attacks as described by
CVE-2024-27454__
__ https://docs.python.org/3.12/library/sys.html#sys.setrecursionlimit __ https://monicz.dev/CVE-2024-27454
1.14 (2023-12-14)
* Produce binary wheels for macOS/arm64, thanks to timothyjlaurent (`PR #195`__)
__ https://github.com/python-rapidjson/python-rapidjson/pull/170
1.13 (2023-10-29)
Fix handling of write_mode in dump functions (problem emerged discussing issue #191__)
__ https://github.com/python-rapidjson/python-rapidjson/issues/191
1.12 (2023-10-07)
* Generate wheels on PyPI using final Python 3.12 release, thanks to cibuildwheel `2.16.2`__
__ https://cibuildwheel.readthedocs.io/en/stable/changelog/#v2162
1.11 (2023-09-11)
Use current master__ version of rapidjson
Use cibuildwheel 2.15.0__
__ https://cibuildwheel.readthedocs.io/en/stable/changelog/#v2150
1.10 (2023-03-15)
* Use `current master`__ version of rapidjson
__ https://github.com/Tencent/rapidjson/commit/083f359f5c36198accc2b9360ce1e32a333231d9
* Produce ppc64le wheels, thanks to mgiessing (`PR #170`__)
__ https://github.com/python-rapidjson/python-rapidjson/pull/170
* Use cibuildwheel `2.12.1`__
__ https://cibuildwheel.readthedocs.io/en/stable/changelog/#v2121
1.9 (2022-10-17)
~~~~~~~~~~~~~~~~
* Produce Python 3.11 wheels, thanks to ``cibuildwheel`` `2.11.1`__
__ https://cibuildwheel.readthedocs.io/en/stable/changelog/#v2111
1.8 (2022-07-07)
~~~~~~~~~~~~~~~~
* Fix `problem on macOS`__ explicitly requiring C++11, thanks to agate-pris (`issue
#166`__)
__ https://github.com/Tencent/rapidjson/commit/9965ab37f6cfae3d58a0a6e34c76112866ace0b1#commitcomment-77875054
__ https://github.com/python-rapidjson/python-rapidjson/issues/166
1.7 (2022-07-06)
~~~~~~~~~~~~~~~~
* Use `current master`__ version of rapidjson
__ https://github.com/Tencent/rapidjson/commit/232389d4f1012dddec4ef84861face2d2ba85709
* Update the test suite to work on Pyston, thanks to Kevin Modzelewski (`PR #161`__)
__ https://github.com/python-rapidjson/python-rapidjson/pull/161
1.6 (2022-02-19)
~~~~~~~~~~~~~~~~
* Fix memory leak when using ``end_array`` (`issue #160`__)
__ https://github.com/python-rapidjson/python-rapidjson/issues/160
1.5 (2021-10-16)
~~~~~~~~~~~~~~~~
* Fix serialization bug when using DM_UNIX_TIME in a non-C locale context
1.4 (2021-06-25)
~~~~~~~~~~~~~~~~
* Build binary wheel for aarch64, thanks to odidev (`PR #156`__)
__ https://github.com/python-rapidjson/python-rapidjson/pull/156
1.3 (2021-06-25)
~~~~~~~~~~~~~~~~
* Yet another attempt to fix automatic wheels upload
1.2 (2021-06-25)
~~~~~~~~~~~~~~~~
* Fix automatic wheels upload from GH Actions to PyPI
1.1 (2021-06-25)
~~~~~~~~~~~~~~~~
* Reduce decoder memory consumption by uniquifiying keys in the loaded dictionaries
* Implement an alternative way of transmogrify JSON objects, similar to ``json``\ 's
``object_pairs_hook`` load option (`issue #154`__)
__ https://github.com/python-rapidjson/python-rapidjson/issues/154
1.0 (2020-12-13)
~~~~~~~~~~~~~~~~
* Require Python 3.6 or greater
* New serialization options, ``iterable_mode`` and ``mapping_mode``, to give some control
on how generic iterables and mappings get encoded (fix `issue #149`__ and
`issue #150`__)
__ https://github.com/python-rapidjson/python-rapidjson/issues/149
__ https://github.com/python-rapidjson/python-rapidjson/issues/150
* Internal refactorings, folding "skipkeys" and "sort_keys" arguments into the
mapping_mode options, respectively as MM_SKIP_NON_STRING_KEYS and MM_SORT_KEYS: "old"
arguments kept for backward compatibility
* Bump major version to 1, tag as "production/stable" and switch to a simpler X.Y
versioning schema
0.9.4 (2020-11-16)
Fix memory leak loading an invalid JSON (issue #148__)
__ https://github.com/python-rapidjson/python-rapidjson/issues/148
0.9.3 (2020-10-24)
* Fix access to ``Encoder`` instance attributes (`issue #147`__)
__ https://github.com/python-rapidjson/python-rapidjson/issues/147
0.9.2 (2020-10-24)
Use current master__ version of rapidjson
__ https://github.com/Tencent/rapidjson/commit/0ccdbf364c577803e2a751f5aededce935314313
Enable GH Actions-based test workflow, thanks to Martin Thoma (PR #143__)
__ https://github.com/python-rapidjson/python-rapidjson/issues/143
Produce Python 3.9 wheels, disable testing under Python < 3.6
Make the character used for indentation in pretty mode a parameter (issue #135__)
__ https://github.com/python-rapidjson/python-rapidjson/issues/135
Handle wider precision range in timestamps fractional seconds (PR 133__), thanks to
Karl Seguin
__ https://github.com/python-rapidjson/python-rapidjson/pull/133
Add comparison benchmarks against orjson and hyperjson (issue #130__ and PR #131__,
thanks to Sebastian Pipping)
__ https://github.com/python-rapidjson/python-rapidjson/issues/130 __ https://github.com/python-rapidjson/python-rapidjson/pull/131
0.9.1 (2019-11-13)
* Fix memory leak in case of failed validation (`issue #126`__)
__ https://github.com/python-rapidjson/python-rapidjson/issues/126
0.9.0 (2019-11-13)
Produce Python 3.8 wheels
Compatibility fix for Python 3.8 (issue #125__)
__ https://github.com/python-rapidjson/python-rapidjson/issues/125
New dump option write_mode, supporting RapidJSON's kFormatSingleLineArray option
(issue #123), thanks to Nguyễn Hồng Quân for the initial implementation (PR #124)
__ https://github.com/python-rapidjson/python-rapidjson/issues/123 __ https://github.com/python-rapidjson/python-rapidjson/pull/124
0.8.0 (2019-08-09)
* New serialization option ``bytes_mode`` to control how bytes instances get encoded
(`issue #122`__)
__ https://github.com/python-rapidjson/python-rapidjson/issues/122
0.7.2 (2019-06-09)
Hopefully fix the memory leak when loading from a stream (issue #117__)
__ https://github.com/python-rapidjson/python-rapidjson/issues/117
0.7.1 (2019-05-11)
* Raise a more specific exception on loading errors, ``JSONDecodeError``, instead of
generic ``ValueError`` (`issue #118`__)
__ https://github.com/python-rapidjson/python-rapidjson/issues/118
* Fix optimization path when using ``OrderedDict``\ s (`issue #119`__)
__ https://github.com/python-rapidjson/python-rapidjson/issues/119
* Fix serialization of ``IntEnum``\ s (`issue #121`__)
__ https://github.com/python-rapidjson/python-rapidjson/issues/121
* I spent *quite a lot* of time investigating on the memory leak when loading from a
stream (`issue #117`__): as I was not able to fully replicate the problem, I cannot be
sure I solved the problem... sorry!
__ https://github.com/python-rapidjson/python-rapidjson/issues/117
0.7.0 (2019-02-11)
Raise correct exception in code samples (PR #109__), thanks to Thomas Dähling
__ https://github.com/python-rapidjson/python-rapidjson/pull/109
Fix compilation with system-wide install of rapidjson (issue #110__)
__ https://github.com/python-rapidjson/python-rapidjson/issues/110
Use current master version of rapidjson, that includes a fix__ for its issue #1368__
and issue #1336, and cures several compilation warnings as well (issue #112 and
issue #107__)
__ https://github.com/Tencent/rapidjson/commit/f5e5d47fac0f654749c4d6267015005b74643dff __ https://github.com/Tencent/rapidjson/issues/1368 __ https://github.com/Tencent/rapidjson/issues/1336 __ https://github.com/python-rapidjson/python-rapidjson/issues/112 __ https://github.com/python-rapidjson/python-rapidjson/issues/107
Fix memory leak when using object_hook (issue #115__)
__ https://github.com/python-rapidjson/python-rapidjson/issues/115
0.6.3 (2018-07-11)
* No visible changes, but now PyPI carries binary wheels for Python 3.7.
0.6.2 (2018-06-08)
0.6.1 (2018-06-06)
* Nothing new, attempt to build Python 3.6 binary wheels on Travis CI
0.6.0 (2018-06-06)
Add a new comparison table involving ensure_ascii (issue #98__)
__ https://github.com/python-rapidjson/python-rapidjson/issues/98
Use Python's repr() to emit float values instead of rapidjson's dtoa() (issue #101__)
__ https://github.com/python-rapidjson/python-rapidjson/issues/101
Use a newer (although unreleased) version of rapidjson to fix an issue__ with
JSONSchema validation (PR #103__), thanks to Anthony Miyaguchi
__ https://github.com/Tencent/rapidjson/issues/825 __ https://github.com/python-rapidjson/python-rapidjson/pull/103
0.5.2 (2018-03-31)
* Tiny tweak to restore macOS build on Travis CI
0.5.1 (2018-03-31)
0.5.0 (2018-03-31)
* New ``RawJSON`` class, allowing inclusion of *pre-serialized* content (`PR #95`__ and
`PR #96`__), thanks to Silvio Tomatis
__ https://github.com/python-rapidjson/python-rapidjson/pull/95
__ https://github.com/python-rapidjson/python-rapidjson/pull/96
0.4.3 (2018-01-14)
Deserialize from bytes and bytearray instances, ensuring they
contain valid UTF-8 data
Speed up parsing of floating point numbers, avoiding intermediary conversion
to a Python string (PR #94__)
__ https://github.com/python-rapidjson/python-rapidjson/pull/94
0.4.2 (2018-01-09)
* Fix precision handling of DM_UNIX_TIME timestamps
0.4.1 (2018-01-08)
Fix memory leaks in Decoder() and Encoder() classes, related to
bad handling of PyObject_GetAttr() result value
Fix compatibility with Python 3.7a
0.4.0 (2018-01-05)
* Implemented the streaming interface, see `load()`__ and `dump()`__ (`issue #80`__)
__ https://python-rapidjson.readthedocs.io/en/latest/load.html
__ https://python-rapidjson.readthedocs.io/en/latest/dump.html
__ https://github.com/python-rapidjson/python-rapidjson/issues/80
**Backward incompatibility**: now the *flags* arguments on all the functions are
*keyword only*, to mimic stdlib's ``json`` style
0.3.2 (2017-12-21)
Reduce compiler warnings (issue #87__)
__ https://github.com/python-rapidjson/python-rapidjson/issues/87
0.3.1 (2017-12-20)
* Fix Travis CI recipe to accomodate MacOS
0.3.0 (2017-12-20)
Fix compilation on MacOS (issue #78__)
__ https://github.com/python-rapidjson/python-rapidjson/issues/78
Handle generic iterables (PR #89__)
__ https://github.com/python-rapidjson/python-rapidjson/pull/89
Backward incompatibility: the dumps() function and the Encoder()
constructor used to accept a max_recursion_depth argument, to control
the maximum allowed nesting of Python structures; since the underlying
function is now effectively recursive, it has been replaced by the generic
sys.setrecursionlimit()__ mechanism
__ https://docs.python.org/3.6/library/sys.html#sys.setrecursionlimit
0.2.7 (2017-12-08)
* Restore compatibility with Python < 3.6
0.2.6 (2017-12-08)
0.2.5 (2017-09-30)
* Fix bug where error handling code could raise an exception causing a
confusing exception to be returned (`PR #82`__)
__ https://github.com/python-rapidjson/python-rapidjson/pull/82
* Fix bug where loads's ``object_hook`` and dumps's ``default`` arguments
could not be passed ``None`` explicitly (`PR #83`__)
__ https://github.com/python-rapidjson/python-rapidjson/pull/83
* Fix crash when dealing with surrogate pairs (`issue #81`__)
__ https://github.com/python-rapidjson/python-rapidjson/issues/81
0.2.4 (2017-09-17)
0.2.3 (2017-08-24)
* Limit the precision of DM_UNIX_TIME timestamps to six decimal digits
0.2.2 (2017-08-24)
0.2.1 (2017-08-24)
* Nothing new, attempt to fix production of Python 3.6 binary wheels
0.2.0 (2017-08-24)
New parse_mode option, implementing relaxed JSON syntax (issue #73__)
__ https://github.com/python-rapidjson/python-rapidjson/issues/73
New Encoder and Decoder, implementing a class-based interface
New Validator, exposing the underlying JSON schema validation (issue #71__)
__ https://github.com/python-rapidjson/python-rapidjson/issues/71
0.1.0 (2017-08-16)
* Remove beta status
0.1.0b4 (2017-08-14)
0.1.0b3 (2017-08-12)
* Exclude CI configurations from the source distribution
0.1.0b2 (2017-08-12)
0.1.0b1 (2017-08-12)
* Compilable with somewhat old g++ (`issue #69`__)
__ https://github.com/python-rapidjson/python-rapidjson/issues/69
* **Backward incompatibilities**:
- all ``DATETIME_MODE_XXX`` constants have been shortened to ``DM_XXX``
``DATETIME_MODE_ISO8601_UTC`` has been renamed to ``DM_SHIFT_TO_UTC``
- all ``UUID_MODE_XXX`` constants have been shortened to ``UM_XXX``
* New option ``DM_UNIX_TIME`` to serialize date, datetime and time values as
`UNIX timestamps`__ targeting `issue #61`__
__ https://en.wikipedia.org/wiki/Unix_time
__ https://github.com/python-rapidjson/python-rapidjson/issues/61
* New option ``DM_NAIVE_IS_UTC`` to treat naïve datetime and time values as if
they were in the UTC timezone (also for issue #61)
* New keyword argument ``number_mode`` to use underlying C library numbers
* Binary wheels for GNU/Linux and Windows on PyPI (one would hope: this is the
reason for the beta1 release)
0.0.11 (2017-03-05)
~~~~~~~~~~~~~~~~~~~
* Fix a couple of refcount handling glitches, hopefully targeting `issue
#48`__.
__ https://github.com/python-rapidjson/python-rapidjson/issues/48
0.0.10 (2017-03-02)
~~~~~~~~~~~~~~~~~~~
* Fix source distribution to contain all required stuff (`PR #64`__)
__ https://github.com/python-rapidjson/python-rapidjson/pull/64
0.0.9 (2017-03-02)
~~~~~~~~~~~~~~~~~~
* CI testing on GitHub
* Allow using locally installed RapidJSON library (`issue #60`__)
__ https://github.com/python-rapidjson/python-rapidjson/issues/60
* Bug fixes (`issue #37`__, `issue #51`__, `issue #57`__)
__ https://github.com/python-rapidjson/python-rapidjson/issues/37
__ https://github.com/python-rapidjson/python-rapidjson/issues/51
__ https://github.com/python-rapidjson/python-rapidjson/issues/57
0.0.8 (2016-12-09)
~~~~~~~~~~~~~~~~~~
* Use unpatched RapidJSON 1.1 (`PR #46`__)
__ https://github.com/python-rapidjson/python-rapidjson/pull/46
* Handle serialization and deserialization of datetime, date and time
instances (`PR #35`__) and of UUID instances (`PR #40`__)
__ https://github.com/python-rapidjson/python-rapidjson/pull/35
__ https://github.com/python-rapidjson/python-rapidjson/pull/40
* Sphinx based documentation (`PR #44`__)
__ https://github.com/python-rapidjson/python-rapidjson/pull/44
* Refresh benchmarks (`PR #45`__)
__ https://github.com/python-rapidjson/python-rapidjson/pull/45
* Bug fixes (`issue #25`__, `issue #38`__, `PR #43`__)
__ https://github.com/python-rapidjson/python-rapidjson/issues/25
__ https://github.com/python-rapidjson/python-rapidjson/issues/38
__ https://github.com/python-rapidjson/python-rapidjson/pull/43
FAQs
Python wrapper around rapidjson
We found that python-rapidjson demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 2 open source maintainers collaborating on the project.
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