python打印函数调用关系图

一、安装 graphviz

系统版本
linux ret hat x86_64
安装
yum install graphviz
查询目录
rpm -ql graphviz.x86_64
检查安装成功
-bash-4.2# which dot
/usr/bin/dot

二、安装pycallgraph

pip install pycallgraph

三、实例

        #!/usr/bin/env python
        # -*- coding: utf-8 -*-
        from pycallgraph import PyCallGraph
        from pycallgraph import Config
        from pycallgraph.output import GraphvizOutput
        import sys
        # sys.path.append("../")
        from jce2json2 import *
        graphviz = GraphvizOutput(output_file=r'trace_detail.png')
        with PyCallGraph(output=graphviz):
            jce2json2.lll()

四、结果