cattrs VS Fast JSON schema for Python

Compare cattrs vs Fast JSON schema for Python and see what are their differences.

cattrs

Complex custom class converters for attrs. (by python-attrs)

Fast JSON schema for Python

Fast JSON schema validator for Python. (by horejsek)
Our great sponsors
  • Scout APM - Less time debugging, more time building
  • SonarQube - Static code analysis for 29 languages.
  • SaaSHub - Software Alternatives and Reviews
cattrs Fast JSON schema for Python
4 1
469 340
6.4% -
9.2 7.0
17 days ago about 2 months ago
Python Python
MIT License BSD 3-clause "New" or "Revised" License
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

cattrs

Posts with mentions or reviews of cattrs. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2022-01-18.

Fast JSON schema for Python

Posts with mentions or reviews of Fast JSON schema for Python. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2022-03-31.
  • I wrote okjson - A fast, simple, and pythonic JSON Schema Validator
    8 projects | reddit.com/r/Python | 31 Mar 2022
    I had a requirement to process and validate large payloads of JSON concurrently for a web service, initially I implemented it using jsonschema and fastjsonschema but I found the whole JSON Schema Specification to be confusing at times and on top of that wanted better performance. Albeit there are ways to compile/cache the schema, I wanted to move away from the schema specification so I wrote a validation library inspired by the design of tiangolo/sqlmodel (type hints) to solve this problem easier.

What are some alternatives?

When comparing cattrs and Fast JSON schema for Python you can also consider the following projects:

marshmallow - A lightweight library for converting complex objects to and from simple Python datatypes.

jsonschema - JSON Schema validation library

pydantic - Data parsing and validation using Python type hints

serpy - ridiculously fast object serialization

Trafaret - Ultimate transformation library that supports validation, contexts and aiohttp.

datamodel-code-generator - Pydantic model generator for easy conversion of JSON, OpenAPI, JSON Schema, and YAML data sources.

ultrajson - Ultra fast JSON decoder and encoder written in C with Python bindings

python-rapidjson - Python wrapper around rapidjson

lupin is a Python JSON object mapper - Python document object mapper (load python object from JSON and vice-versa)