1.pydantic / pydantic
Data validation using Python type hints
- validation
- parsing
- json-schema
- pydantic
- python
- hints
- +5 more
+1,796 stars
from 27,504 · score 7.49
Trending repositories
Ranked by Attention Score: stars gained over the last 180 complete days
12 repositories by Attention Score · May 9, 2026 – Nov 4, 2026 (UTC)
2.unionai-oss / pandera
A light-weight, flexible, and expressive statistical data testing library
+202 stars
from 4,308 · score 5.31
3.python-jsonschema / jsonschema
An implementation of the JSON Schema specification for Python
- json-schema
- json
- validation
- schema
- jsonschema
+70 stars
from 4,923 · score 4.26
4.daviddrysdale / python-phonenumbers
Python port of Google's libphonenumber
+51 stars
from 3,726 · score 3.95
5.marshmallow-code / marshmallow
A lightweight library for converting complex objects to and from simple Python datatypes.
- serialization
- deserialization
- validation
- python
- marshalling
- serde
- +1 more
+43 stars
from 7,201 · score 3.78
+21 stars
from 3,260 · score 3.09
7.alecthomas / voluptuous
CONTRIBUTIONS ONLY: Voluptuous, despite the name, is a Python data validation library.
+13 stars
from 1,839 · score 2.64
8.patrick-kidger / torchtyping
Type annotations and dynamic checking for a tensor's shape, dtype, names, etc.
- tensors
- named-tensors
- shape
- pytorch
- typing
- python-typing
+10 stars
from 1,475 · score 2.40
9.marshmallow-code / webargs
A friendly library for parsing HTTP request arguments, with built-in support for popular web frameworks, including Flask, Django, Bottle, Tornado, Pyramid, webapp2, Falcon, and aiohttp.
+9 stars
from 1,401 · score 2.30
10.antonagestam / phantom-types
Phantom types for Python.
- phantom-types
- static-analysis
- mypy
- python
- static-typing
- typing
- +5 more
+2 stars
from 233 · score 1.10
11.vertti / daffy
Lightweight DataFrame validation decorators for Pandas, Polars, Modin, and PyArrow. No custom types required.
- pandas
- dataframe
- validation
- polars
- pydantic
- data-quality
- +10 more
+2 stars
from 58 · score 1.10
12.uk-fci / nhs-number
Python package to provide utilities for NHS Numbers, including validity checks, normalisation, and generation.
- nhs
- fci
- python
- nhsnumber
+1 stars
from 13 · score 0.69