[python error] InvocationException: GraphViz's executables not found

Problem Description

 InvocationException: GraphViz's executables not found solutions

problem solved

 Path path GraphViz installation directory bin directory into the environment variables
under windows:

import os
os.environ["PATH"] += os.pathsep + 'C:/Program Files (x86)/Graphviz2.38/bin/'  #注意修改你的路径

reference

InvocationException: GraphViz's executables not found solutions
Python decision tree visualization: GraphViz's executables not found solution

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