RuntimeError: failed to execute ['dot', '-Tpdf', '-O', 'test'], make sure the Graphviz executables
在python中想用graphviz画图的时候,发现报了如下异常:RuntimeError:failedtoexecute['dot','-Tpdf','-O','test'],makesuretheGraphvizexecutablesareonyoursystems'path很奇怪啊。python里面明明已经安装好了graphviz。。。经过google搜索,发现是系统也需要安装graphvi