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New Python Validation Libraries 2026

GitHub Libraries Python Validation Libraries

marshmallow-code/webargs 1K +4

added 1 year ago

webargs is a Python library for parsing and validating HTTP request objects, with built-in support for popular web frameworks, including Flask, Django, Bottle, Tornado, Pyramid, Falcon, and aiohttp.

keleshev/schema 2K

added 1 year ago

Schema validation just got Pythonic

pyeve/cerberus 3K -4

added 1 year ago

Lightweight, extensible data validation library for Python

pydantic/pydantic 28K +93

added 1 year ago

Data validation using Python type hints

msgspec/msgspec 4K +28

added 1 year ago

A fast serialization and validation library, with builtin support for JSON, MessagePack, YAML, and TOML

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