|lupin is a Python JSON object mapper||pysimdjson|
|8 months ago||13 days ago|
|MIT License||MIT License|
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lupin is a Python JSON object mapper
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5 projects | reddit.com/r/emacs | 23 May 2022
You are aware of simdjson being available in python if you really need some json crunching, albeit json module in Python is implemented in C itself, so I don't think understand why do you think Python is slow there?
The fastest tool for querying large JSON files is written in Python (benchmark)
16 projects | news.ycombinator.com | 12 Apr 2022
json: 113.79130696877837 ms
While `orjson`, is faster than `ujson`/`json` here, it's only ~6% faster (in this benchmark). `simdjson` and `msgspec` (my library, see https://jcristharif.com/msgspec/) are much faster due to them avoiding creating PyObjects for fields that are never used.
If spyql's query engine can determine the fields it will access statically before processing, you might find using `msgspec` for JSON gives a nice speedup (it'll also type check the JSON if you know the type of each field). If this information isn't known though, you may find using `pysimdjson` (https://pysimdjson.tkte.ch/) gives an easy speed boost, as it should be more of a drop-in for `orjson`.
How I cut GTA Online loading times by 70%
7 projects | reddit.com/r/programming | 28 Feb 2021
I don't think JSON is really the problem - parsing 10MB of JSON is not so slow. For example, using Python's json.load takes about 800ms for a 47MB file on my system, using something like simdjson cuts that down to ~70ms.
What are some alternatives?
marshmallow - A lightweight library for converting complex objects to and from simple Python datatypes.
orjson - Fast, correct Python JSON library supporting dataclasses, datetimes, and numpy
jsons - 🐍 A Python lib for (de)serializing Python objects to/from JSON
ultrajson - Ultra fast JSON decoder and encoder written in C with Python bindings
Fast JSON schema for Python - Fast JSON schema validator for Python.
Trafaret - Ultimate transformation library that supports validation, contexts and aiohttp.
hjson-py - Hjson for Python
cattrs - Complex custom class converters for attrs.
PyLD - JSON-LD processor written in Python
pySHACL - A Python validator for SHACL
jsonschema - JSON Schema validation library