VizTracer 是一个这样的工具，它通过跟踪和可视化 Python 代码的执行过程，来帮助你对代码的理解。无需对源代码进行任何更改，VizTracer 即可记录函数的入口 / 出口，函数参数 / 返回值以及任意变量，然后通过 Trace-Viewer 使用直观的谷歌前端界面来显示数据。
VizTracer is a low-overhead logging/debugging/profiling tool that can trace and visualize your python code execution.
The front-end UI is powered by Perfetto. Use "AWSD" to zoom/navigate. More help can be found in "Support - Controls".
Highlights
- Detailed function entry/exit information on timeline with source code
- Super easy to use, no source code change for most features, no package dependency
- Supports threading, multiprocessing, subprocess and async
- Logs arbitrary function/variable using RegEx without code change
- Powerful front-end, able to render GB-level trace smoothly
- Works on Linux/MacOS/Windows