Pyan3-Offline call graph generator¶

GitHub: https://github.com/davidfraser/pyan
pyan is a Python module that performs static analysis of Python code to determine a call dependency graph between functions and methods.
This is different from running the code and seeing which functions are called and how often; there are various tools that will generate a call graph in that way, usually using debugger or profiling trace hooks, such as Python Call Graph.
In Pyan3, the analyzer was ported from compiler (good riddance) to a combination of ast and symtable, and slightly extended.

安装:

pip install pyan3

# 上面安装如何报错的话，可以使用这个命令
pip install --user git+https://github.com/kuuurt/pyan.git

Usage¶

命令行:

# 先生成dot
pyan *.py --uses --no-defines --colored --grouped --annotated --dot > myuses.dot
dot -Tsvg myuses.dot > myuses.svg


# directly export as svg
pyan *.py --uses --no-defines --colored --grouped --annotated --svg > myuses.svg


// export as an interactive HTML
pyan *.py --uses --no-defines --colored --grouped --annotated --html > myuses.html

在代码里使用api:

import pyan
from IPython.display import HTML
HTML(pyan.create_callgraph(filenames="**/*.py", format="html"))

选项:

--colored: 带有彩色标记的调用图

优化使用¶

指定特定的模块或函数:

pyan my_script.py module1 module2 --dot > output.dot

限制分析的深度:

pyan my_script.py --depth=2 --dot > output.dot

排除第三方库或系统库:

pyan my_script.py --no-thirdparty --dot > output.dot

https://img.zhaoweiguo.com/uPic/2024/06/0QUc2a.png

实战¶

metaGPT:

pyan3 ${PWD}/software_company.py --uses --no-defines --colored --grouped --annotated --svg --root ${PWD} > myuses.svg