使用graphviz和pycallgraph画python的函数调用图

1. 安装graphviz
   sudo apt-get install graphviz
2. 安装pycallgraph
   sudo pip install pycallgraph
3. 命令行使用
   pycallgraph graphviz -o test.png -- ./test_python_file.py
4. 代码中使用

   from pycallgraph import PyCallGraph
   from pycallgraph.output import GraphvizOutput
   from pycallgraph import Config
   from pycallgraph import ClobbingFilter
   
   def main()：
   	# logic
   if __name__ == "__main__":
   	config = Config();
   	config.trace_filter = GlobbingFilter(include=['funca','funcb'], exclude=['funcc'])
   	graphviz = GraphvizOutput()
   	graphviz.output_file="test.png"
   	with PyCallGraph(output=graphviz,config=config):
   		main()
   

抄的，侵删