File: simple.py

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#!/usr/bin/env python3

"""
example usage of the Graphviz Python module
"""

import gv

# create a new empty graph
G = gv.digraph("G")

# define a simple graph ( A->B )
gv.edge(gv.node(G, "A"), gv.node(G, "B"))

# compute a directed graph layout
gv.layout(G, "dot")

# annotate the graph with the layout information
gv.render(G, "ps")