PrefectHQ/prefect 源码下载与部署教程

项目概述

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

项目地址

https://github.com/PrefectHQ/prefect

项目页面预览

关键指标

• Stars：21334
• 主要语言：Python
• License：Apache License 2.0
• 最近更新：2026-01-15T08:09:43Z
• 默认分支：main

本站高速下载（国内可用）

点击下载（本站镜像）
– SHA256：c839062acb1ea452862cc1fb09f98f1057b188fef3abcd0dc0d5783b487bedff

安装部署要点（README 精选）

Getting started

Prefect requires Python 3.10+. To install the latest version of Prefect, run one of the following commands:

pip install -U prefect

uv add prefect

Then create and run a Python file that uses Prefect flow and task decorators to orchestrate and observe your workflow – in this case, a simple script that fetches the number of GitHub stars from a repository:

from prefect import flow, task
import httpx


@task(log_prints=True)
def get_stars(repo: str):
    url = f"https://api.github.com/repos/{repo}"
    count = httpx.get(url).json()["stargazers_count"]
    print(f"{repo} has {count} stars!")


@flow(name="GitHub Stars")
def github_stars(repos: list[str]):
    for repo in repos:
        get_stars(repo)


# run the flow!
if __name__ == "__main__":
    github_stars(["PrefectHQ/prefect"])

Fire up a Prefect server and open the UI at http://localhost:4200 to see what happened:

prefect server start

To run your workflow on a schedule, turn it into a deployment and schedule it to run every minute by changing the last line of your script to the following:

if __name__ == "__main__":
    github_stars.serve(
        name="first-deployment",
        cron="* * * * *",
        parameters={"repos": ["PrefectHQ/prefect"]}
    )

You now have a process running locally that is looking for scheduled deployments!
Additionally you can run your workflow manually from the UI or CLI. You can even run deployments in response to events.

[!TIP]
Where to go next – check out our documentation to learn more about:
– Deploying flows to production environments
– Adding error handling and retries
– Integrating with your existing tools
– Setting up team collaboration features

常用命令（从 README 提取）

pip install -U prefect

uv add prefect

prefect server start

通用部署说明

1. 下载源码并阅读 README
2. 安装依赖（pip/npm/yarn 等）
3. 配置环境变量（API Key、模型路径、数据库等）
4. 启动服务并测试访问
5. 上线建议：Nginx 反代 + HTTPS + 进程守护（systemd / pm2）

免责声明与版权说明

本文仅做开源项目整理与教程索引，源码版权归原作者所有，请遵循对应 License 合规使用。