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prefectPrefect is a workflow orchestration framework for building resilient data pipelines in Python.

Prefect is a workflow orchestration framework for building resilient data pipelines in Python.

22,340 stars
2,298 forks
Python
Apache-2.0
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prefect

Prefect is a workflow orchestration framework that transforms Python scripts into production-grade data pipelines with minimal code. It provides built-in resilience, scheduling, and monitoring to help data teams automate complex workflows that adapt to changing conditions and recover from failures.

Key Features

  • Decorators-based workflow definition: Simply use @flow and @task decorators to turn Python functions into orchestrated workflows
  • Built-in resilience: Automatic retries, caching, error handling, and complex branching logic for robust pipelines
  • Scheduling and automation: Support for cron-based scheduling, manual triggers, and event-driven execution
  • Observability and monitoring: Self-hosted server and managed cloud dashboard for tracking workflow activity and debugging
  • Dynamic workflows: Flows can react to runtime conditions and handle complex dependencies

Use Cases

  • Data pipeline automation: Schedule and monitor ETL processes with automatic retries and error recovery
  • MLOps workflows: Orchestrate machine learning training, evaluation, and deployment pipelines
  • Event-driven automation: Trigger workflows based on external events and data changes
  • Data quality monitoring: Automate data validation and quality checks across data pipelines

Who Is It For

Prefect is designed for data engineers, data scientists, and ML practitioners who want to move beyond scripting and build production-ready, maintainable data pipelines in Python. It's ideal for teams seeking an open-source alternative to expensive enterprise orchestration platforms.