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QF-Lib:用一个库搞定Python量化回测和策略开发

  • 2026-02-02 09:07:46
QF-Lib:用一个库搞定Python量化回测和策略开发

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搞过量化交易的人都清楚,测试策略的时候流程能有多乱:Pandas 管数据、Matplotlib 画图、Backtrader 跑回测,最后还要再用 Excel 做汇总。本来想简单验证个想法,结果工具链越搞越复杂,最后自己都不知道在干什么了。

QF-Lib(Quantitative Finance Library)是个金融研究和回测工具包。从数据获取到策略模拟、风险评估,再到最后的报告生成,基本能在这一个工具里搞定。

而且它还包含了的事件驱动机制,不是简单粗暴地循环价格数据,而是模拟市场开盘、交易执行、日终清算这些真实流程,基本上达到了专业回测系统的最低要求。

主要特性

数据源接入灵活

Bloomberg、Quandl、Haver 都能接,本地 Excel 文件也行。

连接方式非常简单:

from qf_lib.data_providers.quandl.quandl_data_provider import QuandlDataProvider  data_provider = QuandlDataProvider(api_key="YOUR_API_KEY")

配置完就能用了。

内置前瞻偏差检测

写交易模型时最容易犯的错误就是前瞻偏差——代码里不小心用了未来数据。QF-Lib 在设计上就考虑了这个问题,能保证回测的时间逻辑不出错。

基于 Pandas 但功能更专业

底层用的是 Pandas,所以学习成本不高。但针对金融数据做了很多扩展,收益率计算、最大回撤、累计表现这些都是现成的。

from qf_lib.common.utils.returns import calculate_cumulative_returns  daily_returns = [0.01, -0.005, 0.002, 0.004]  cumulative = calculate_cumulative_returns(daily_returns)  print(cumulative)

输出:

[1.011.004951.007941.01196]

这就是策略的累计净值曲线,代码很简洁。

回测模块设计合理

很多回测框架配置起来特别麻烦光搭环境就要半天,而QF-Lib 的回测器是模块化的,接口设计得比较直观,几分钟就能跑起来一个原型。

from qf_lib.backtesting import Backtester  from qf_lib.strategy.simple_moving_average import SimpleMovingAverageStrategy  backtester = Backtester(initial_cash=100000)  strategy = SimpleMovingAverageStrategy(short_window=20, long_window=50)  results = backtester.run(strategy)  results.create_report("sma_backtest.pdf")

交易管理、日志记录都可以自动处理,最后还能生成 PDF 报告。

报告生成

QF-Lib 集成了 WeasyPrint,可以自动输出 PDF 或 Excel 格式的分析报告。图表、统计指标、绩效分解都整理得很清楚。

如果要给客户看结果,或者自己做策略记录,这个功能可以节省大量时间

安装

PyPI 直接装:

pip install qf-lib

或者从源码编译:

git clone https://github.com/quarkfin/qf-lib.git  cd qf-lib  python setup.py install

支持 Python 3.8 到 3.11,Windows、macOS、Ubuntu 都能跑。

总结

QF-Lib 除了策略回测,还能用在:

时间序列分析、组合管理、衍生品定价、风险度量、学术研究等场景。基本上涉及金融数据处理的工作都能覆盖。

Backtrader、Zipline 这些库用过一圈下来,各有各的优势,但也各有各的问题。有些功能强但太复杂,有些简单但扩展性差。

QF-Lib 在这方面平衡得比较好。模块化设计保证了灵活性,同时支持主流数据源,代码风格也比较 Pythonic。特别是自动报告这个功能,实际工作中确实省了不少事。

如果正在做量化研究或者策略开发,可以考虑用用看。

文档:https://qf-lib.readthedocs.io

GitHub:https://github.com/quarkfin/qf-lib

作者:Civil Learning

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  1. CONNECT:[ UseTime:0.001102s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001408s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.008403s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.005793s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001407s ]
  6. SELECT * FROM `set` [ RunTime:0.006869s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001512s ]
  8. SELECT * FROM `article` WHERE `id` = 460810 LIMIT 1 [ RunTime:0.017639s ]
  9. UPDATE `article` SET `lasttime` = 1770563189 WHERE `id` = 460810 [ RunTime:0.023386s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.007279s ]
  11. SELECT * FROM `article` WHERE `id` < 460810 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.007152s ]
  12. SELECT * FROM `article` WHERE `id` > 460810 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.006058s ]
  13. SELECT * FROM `article` WHERE `id` < 460810 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.019863s ]
  14. SELECT * FROM `article` WHERE `id` < 460810 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.024011s ]
  15. SELECT * FROM `article` WHERE `id` < 460810 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.018261s ]
0.313936s