Ddd Python Packages

eventsourcing

A library for event sourcing in Python.

sutoppu

A simple python implementation of Specification pattern.

lanorme

Executable codebase standards for Python: quality, style, architecture, and structure, checked mechanically on every commit. Ready-made checks (normes) cover the common ground; a plugin interface lets a team add its own. The same gate runs in CI and inside an AI agent's loop. Docs: https://lanorme.github.io/lanorme/

moai-adk

SPEC-First Agentic Development Kit for Claude Code — 24 AI agents + 52 skills with TDD/DDD quality gates, 16-language projects, 4-language docs. Go CLI, zero deps.

eventsourcing-helpers

Python library for practicing the event sourcing pattern using DDD

injex

Tiny typed dependency injection for Python: explicit wiring, graph validation, zero deps, fast resolves.

forze

Domain-Driven Design and Hexagonal Architecture for backend services

aioddd

Async Python DDD utilities library.

flunt

Python implementation of Domain Notification Pattern inspired by Flunt (.NET)

dddesign

Domain Driven Design Library

operetta

A lightweight framework for building Python applications that is not tied to a specific transport protocol

fennflow

Atomic-like Agnostic Object Storage Framework, the Pydantic way

finaegis

Open-source core banking platform — 61 DDD domains with event sourcing, CQRS, and a schema-first GraphQL API. Multi-asset accounts, exchange, lending, compliance, x402/MPP machine payments, and a non-custodial wallet backend. Laravel 12 / PHP 8.4. Reference implementation: the GCU basket currency.

cqrs-bus

Async CQRS command/query bus and mediator for Python — handler auto-discovery, type-based dependency injection, middleware, and an event bus.

dddkit

Kit for using DDD tactical patterns

ascetic-ddd

A framework, toolkit and seedwork for python DDD projects.

aioevents-ng

A simple library for managing events through an asynchronous queue

pycider

Aggregates composition for domain driven design in Python

bendykit

DDD scaffolding generator for Python backends — describe your domain, get domain models, repositories, use cases, DTOs and FastAPI routers

py-assimilator

Python Domain-Driven Design, Event-Based Systems, CRUD patterns

value-object-sindri

Value Object pattern implementation for Python

pydomain-lib

DDD, CQRS & Event Sourcing Building Blocks library for Python

repka

Simple work with db in async style

pymediator

Lightweight and extensible implementation of the Mediator pattern in Python