解决`pydot` failed to call GraphViz.Please install GraphViz (https://www.graphviz.org/)问题

解决pydot failed to call GraphViz.Please install GraphViz (https://www.graphviz.org/) and ensure that its executables are in the $PATH.问题

下载：

pip install graphviz

pip install pydot

再安装GraphViz：

http://www.graphviz.org/

设置环境变量：


找到path：

将下好的graphviz目录下的bin路径加到path里