安装 graphviz 命令
brew install graphviz
安装 graphviz 包
pip install graphviz
#!/usr/bin/env python # -*- coding: utf-8 -*- from graphviz import Digraph A = [('Yellow', 'ink'), ('blue', 'ink'), ('pink', 'ink')] e = Digraph() e.attr(rankdir='LR') for a in A: e.node(a[0]) e.edge(a[0], a[1]) e.view()