Dead Letter Queue Python Packages

baldur-framework

Self-healing reliability layer for Python — circuit breaker, retry, and fallback behind a single decorator. Framework-agnostic core with Django, FastAPI, Flask, and Celery adapters.

babelqueue

Read & write the canonical BabelQueue envelope from Python — exchange messages with Laravel, Symfony, Go, .NET & Node over one strict JSON format. Zero-dependency core.

queen-mq

High-performance transactional message broker for applications that need an ordered stream per entity.

asyncmq

Supercharge your async applications with tasks so fast, you’ll think you’re bending time itself.

quarantine-py

When one bad item crashes your loop of 10,000 - don't crash. Set it aside, keep going, fix it later.

litestar-rs

Background tasks, cron and a dead letter queue on Redis Streams, with a Litestar integration

relier

Zero-job-loss reliability layer for Celery. Phoenix Pattern worker resurrection, atomic idempotency, graceful shutdown, DLQ, OpenTelemetry. pip install relier

phoenix-letter

CLI to bring your messages back from SQS Dead Letter Queues.

asbflow

ASBFlow is a high-level Python abstraction over Microsoft Azure Service Bus, providing clean APIs for publish/consume workflows, DLQ management, parsing, and execution strategies.

jobcelis

Event infrastructure platform — publish events, deliver webhooks with retries, schedule cron jobs. 13 SDKs, real-time dashboard, GDPR compliant.

pgrelay

PostgreSQL-backed transactional outbox and background jobs for Python — no extra broker needed

aio-pika-batch

Batch consumer for aio-pika with per-message ACK/NACK/REQUEUE, retry tracking, dead-letter routing, and multi-worker scaling. The missing batch layer for RabbitMQ in Python.

smallage

Background tasks, cron and a dead letter queue on Redis Streams, with a Litestar integration

hookrail

Self-hostable webhook delivery service: retries, idempotency, HMAC signing, DLQs — at-least-once, honestly.