otsastpy

otsastpy is an open-source Python package that provides a lightweight framework for building and running stateful, asynchronous workflows. It focuses on task orchestration, dependency management, and reliable execution in event-driven environments.

Design goals include simplicity, composability, and extensibility. It uses Python's asyncio to schedule tasks, supports pluggable backends for storage and messaging, and exposes a small, well-documented API for defining tasks, workflows, and error handling.

Core concepts include tasks (units of work), graphs (dependencies), workflows (collections of tasks with execution order), and runners (execution engines). The library offers features such as retries with backoff, timeouts, idempotence controls, and observability through structured logs and metrics.

Architecture: The runtime core coordinates task execution, state transitions, and event dispatch. Adapters enable interaction with external systems (databases, queues, or cloud services). The modular design allows users to extend the system with custom backends or task types.

Usage: After installation via pip, developers define tasks with decorators or function wrappers, declare workflows, and invoke a runner to execute the graph. It can integrate with existing asyncio applications and can be configured via a YAML or Python-based configuration.

Development and reception: otsastpy is maintained by an open community of contributors, with documentation on the project site and repositories for issue tracking and testing. The project aims to balance ease of use with reliability in production environments.