Pydot example

gistfile1.py

import pydot
open('twopi2.gv.txt').read()
'digraph G {\n ranksep=3;\n ratio=auto;\n"1" [ label="01",shape="hexagon",style="filled",color="green" ];\n"2" [ label="02",shape="hexagon",style="filled",color="green" ];\n"3" [ label="02",shape="hexagon",style="filled",color="green" ];\n"1" -> "2" [ label=" ",color="blue",arrowhead="dot" ];\n"1" -> "3" [label="",color="blue",arrowhead="
dot" ];\n}\n'

graph = pydot.graph_from_dot_data(open('twopi2.gv.txt').read())
svg = graph.create_svg()
svg
# OUT: '<?xml version="1.0" encoding="UTF-8" standalone="no"?>\n<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.0//EN"\n "http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd" [\n <!ATTLIST svg xmlns:xlink CDATA #FIXED "http://www.w3.org/1999/xlink">\n]>\n<!-- Generated by Graphviz version 2.20.2 (Tue Mar &#160;2 19:03:41 UTC 2010)\n     For user: (rmyeid) Rami Al&#45;rfou&#39; -->\n<!-- Title: G Pages: 1 -->\n<svg width="134pt" height="314pt"\n viewBox="0.00 0.00 134.00 314.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">\n<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 310)">\n<title>G</title>\n<polygon style="fill:white;stroke:white;" points="-4,4 -4,-310 130,-310 130,4 -4,4"/>\n<!-- 1 -->\n<g id="node1" class="node"><title>1</title>\n<polygon style="fill:green;stroke:green;" points="90,-288 76.5,-306 49.5,-306 36,-288 49.5,-270 76.5,-270 90,-288"/>\n<text text-anchor="middle" x="63" y="-283.9" style="font-family:Times New Roman;font-size:14.00;">01</text>\n</g>\n<!-- 2 -->\n<g id="node2" class="node"><title>2</title>\n<polygon style="fill:green;stroke:green;" points="54,-18 40.5,-36 13.5,-36 0,-18 13.5,-2.4869e-14 40.5,-0 54,-18"/>\n<text text-anchor="middle" x="27" y="-13.9" style="font-family:Times New Roman;font-size:14.00;">02</text>\n</g>\n<!-- 1&#45;&gt;2 -->\n<g id="edge2" class="edge"><title>1&#45;&gt;2</title>\n<path style="fill:none;stroke:blue;" d="M61,-270C54,-223 38,-98 30,-44"/>\n<ellipse style="fill:blue;stroke:blue;" cx="29.4962" cy="-39.9691" rx="4.00001" ry="4.00001"/>\n<text text-anchor="middle" x="50" y="-148.9" style="font-family:Times New Roman;font-size:14.00;"> </text>\n</g>\n<!-- 3 -->\n<g id="node3" class="node"><title>3</title>\n<polygon style="fill:green;stroke:green;" points="126,-18 112.5,-36 85.5,-36 72,-18 85.5,-2.4869e-14 112.5,-0 126,-18"/>\n<text text-anchor="middle" x="99" y="-13.9" style="font-family:Times New Roman;font-size:14.00;">02</text>\n</g>\n<!-- 1&#45;&gt;3 -->\n<g id="edge4" class="edge"><title>1&#45;&gt;3</title>\n<path style="fill:none;stroke:blue;" d="M65,-270C72,-223 88,-98 96,-44"/>\n<ellipse style="fill:blue;stroke:blue;" cx="96.5038" cy="-39.9691" rx="4.00001" ry="4.00001"/>\n<text text-anchor="middle" x="83" y="-148.9" style="font-family:Times New Roman;font-size:14.00;"> </text>\n</g>\n</g>\n</svg>\n'