Type Safety Python Packages

result

NOT MAINTAINED - A simple Rust like Result type for Python 3. Fully type annotated.

returns

Make your functions return something meaningful, typed, and safe!

dynamoquery

Python AWS DynamoDB ORM

undictify

Python library providing type-checked function calls at runtime

toolz-stubs

Type stubs for toolz and tlz.

citry-core

Fully typed frontend framework for Python with server events and Alpine.js, inspired by Vue and Livewire.

affinity-sdk

Unofficial strongly-typed Python SDK for the Affinity CRM API - full read/write coverage, Pydantic v2, MCP server included. For when you need more than Affinity's official MCP

pedantic

Some useful tools and decorators including runtime type checking

koda

Type-safe functional tools for Python.

safe-result

A Python package for elegant error handling, inspired by Rust's Result type

django-qp

Pydantic-powered query parameter validation for Django and DRF — type-safe, IDE-friendly, async-ready

assertpy2

Fluent, fully typed assertion library for Python: your type checker sees only the assertions that fit the value, and every failure carries a structured diff. Soft assertions, polling, inline snapshots, OpenAPI contracts.

mocksafe

Type-safe mocking for Python.

citry

Fully typed frontend framework for Python with server events and Alpine.js, inspired by Vue and Livewire.

bowline-agent

Write once, typed everywhere. API clients generated from plain Go functions.

bowline-client

Write once, typed everywhere. API clients generated from plain Go functions.

phx-filters

Opinionated schema validation for Python - chain type-safe filters with | like UNIX pipes

safe-assert

Safe and composable assert for Python that can be used together with optimised mode

guideme

Type-safe inline judgments from TypeSafe Jev, for Python

citry-ui

Fully typed frontend framework for Python with server events and Alpine.js, inspired by Vue and Livewire.

selfrotgram

Async Python framework for Telegram Bot API where types tell the truth: filters narrow types, codegen from the Bot API spec, CLI. Фреймворк для Telegram Bot API

guards

An alternative to Python's try/except/else statements

typical

Typical: Fast, simple, & correct data-validation using Python 3 typing.

flecsi-sandbox

Flexible Computational Science (FleCSI) Project