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Description:

pythonrapidjson 1.20

Authors:
Ken Robbins <ken@kenrobbins.com>
Lele Gaifax <lele@metapensiero.it>

License:
MIT License

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.

Getting Started
First install python-rapidjson:
$ pip install python-rapidjson
or, if you prefer Conda:
$ conda install -c conda-forge python-rapidjson
Basic usage looks like this:
>>> 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"}'

Development
If you want to install the development version (maybe to contribute fixes or
enhancements) you may clone the repository:
$ 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:
$ 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.

Performance
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.

Incompatibility
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.

Changes

1.20 (2024-08-05)

Rectify type hints if loads() and Decoder.__call__() (issue #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

1.19 (2024-07-28)

Properly dump subclasses of float with custom __repr__() method ( issue #213)

1.18 (2024-06-29)

Expose PEP-484 typing stubs, thanks to Rodion Kosianenko and GoodWasHere (PR #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

1.14 (2023-12-14)

Produce binary wheels for macOS/arm64, thanks to timothyjlaurent (PR #195)

1.13 (2023-10-29)

Fix handling of write_mode in dump functions (problem emerged discussing issue #191)

1.12 (2023-10-07)

Generate wheels on PyPI using final Python 3.12 release, thanks to cibuildwheel 2.16.2

1.11 (2023-09-11)

Use current master version of rapidjson

Use cibuildwheel 2.15.0

1.10 (2023-03-15)

Use current master version of rapidjson

Produce ppc64le wheels, thanks to mgiessing (PR #170)

Use cibuildwheel 2.12.1

1.9 (2022-10-17)

Produce Python 3.11 wheels, thanks to cibuildwheel 2.11.1

1.8 (2022-07-07)

Fix problem on macOS explicitly requiring C++11, thanks to agate-pris (issue
#166)

1.7 (2022-07-06)

Use current master version of rapidjson

Update the test suite to work on Pyston, thanks to Kevin Modzelewski (PR #161)

1.6 (2022-02-19)

Fix memory leak when using end_array (issue #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)

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)

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)

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)

0.9.3 (2020-10-24)

Fix access to Encoder instance attributes (issue #147)

0.9.2 (2020-10-24)

Use current master version of rapidjson

Enable GH Actions-based test workflow, thanks to Martin Thoma (PR #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)

Handle wider precision range in timestamps fractional seconds (PR 133), thanks to
Karl Seguin

Add comparison benchmarks against orjson and hyperjson (issue #130 and PR #131,
thanks to Sebastian Pipping)

0.9.1 (2019-11-13)

Fix memory leak in case of failed validation (issue #126)

0.9.0 (2019-11-13)

Produce Python 3.8 wheels
Compatibility fix for Python 3.8 (issue #125)

New dump option write_mode, supporting RapidJSON’s kFormatSingleLineArray option
(issue #123), thanks to Nguyễn Hồng Quân for the initial implementation (PR #124)

0.8.0 (2019-08-09)

New serialization option bytes_mode to control how bytes instances get encoded
(issue #122)

0.7.2 (2019-06-09)

Hopefully fix the memory leak when loading from a stream (issue #117)

0.7.1 (2019-05-11)

Raise a more specific exception on loading errors, JSONDecodeError, instead of
generic ValueError (issue #118)

Fix optimization path when using OrderedDicts (issue #119)

Fix serialization of IntEnums (issue #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!

0.7.0 (2019-02-11)

Raise correct exception in code samples (PR #109), thanks to Thomas Dähling

Fix compilation with system-wide install of rapidjson (issue #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)

Fix memory leak when using object_hook (issue #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)

Use a more specific ValidationError, to differentiate from invalid JSON

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)

Use Python’s repr() to emit float values instead of rapidjson’s dtoa() (issue
#101)

Use a newer (although unreleased) version of rapidjson to fix an issue with
JSONSchema validation (PR #103), thanks to Anthony Miyaguchi

0.5.2 (2018-03-31)

Tiny tweak to restore macOS build on Travis CI

0.5.1 (2018-03-31)

Minor tweaks to CI and PyPI deploy configuration

0.5.0 (2018-03-31)

New RawJSON class, allowing inclusion of pre-serialized content (PR #95 and
PR #96), thanks to Silvio Tomatis

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)

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)
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)

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)

Handle generic iterables (PR #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

0.2.7 (2017-12-08)

Restore compatibility with Python < 3.6

0.2.6 (2017-12-08)

Fix memory leaks when using object_hook/start_object/end_object

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)

Fix bug where loads’s object_hook and dumps’s default arguments
could not be passed None explicitly (PR #83)

Fix crash when dealing with surrogate pairs (issue #81)

0.2.4 (2017-09-17)

Fix compatibility with MacOS/clang

0.2.3 (2017-08-24)

Limit the precision of DM_UNIX_TIME timestamps to six decimal digits

0.2.2 (2017-08-24)

Nothing new, attempt to fix production of Python 3.6 binary wheels

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)

New Encoder and Decoder, implementing a class-based interface
New Validator, exposing the underlying JSON schema validation (issue #71)

0.1.0 (2017-08-16)

Remove beta status

0.1.0b4 (2017-08-14)

Make execution of the test suite on Appveyor actually happen

0.1.0b3 (2017-08-12)

Exclude CI configurations from the source distribution

0.1.0b2 (2017-08-12)

Fix Powershell wheel upload script in appveyor configuration

0.1.0b1 (2017-08-12)

Compilable with somewhat old g++ (issue #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

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.

0.0.10 (2017-03-02)

Fix source distribution to contain all required stuff (PR #64)

0.0.9 (2017-03-02)

CI testing on GitHub
Allow using locally installed RapidJSON library (issue #60)

Bug fixes (issue #37, issue #51, issue #57)

0.0.8 (2016-12-09)

Use unpatched RapidJSON 1.1 (PR #46)

Handle serialization and deserialization of datetime, date and time
instances (PR #35) and of UUID instances (PR #40)

Sphinx based documentation (PR #44)

Refresh benchmarks (PR #45)

Bug fixes (issue #25, issue #38, PR #43)