"""
=================
Pygraphviz Simple
=================

An example showing how to use the interface to the pygraphviz
AGraph class to convert to and from graphviz.

Also see the pygraphviz documentation and examples at
http://pygraphviz.github.io/
"""

import networkx as nx

# plain graph
G = nx.complete_graph(5)  # start with K5 in networkx
A = nx.nx_agraph.to_agraph(G)  # convert to a graphviz graph
X1 = nx.nx_agraph.from_agraph(A)  # convert back to networkx (but as Graph)
X2 = nx.Graph(A)  # fancy way to do conversion
G1 = nx.Graph(X1)  # now make it a Graph

A.write("k5.dot")  # write to dot file
X3 = nx.nx_agraph.read_dot("k5.dot")  # read from dotfile