Converting Dot To Png In Python

Answer :

Load the file with pydot.graph_from_dot_file to get a pydot.Dot class instance. Then write it to a PNG file with the write_png method.

import pydot

(graph,) = pydot.graph_from_dot_file('somefile.dot')
graph.write_png('somefile.png')

pydot needs the GraphViz binaries to be installed anyway, so if you've already generated your dot file you might as well just invoke dot directly yourself. For example:

from subprocess import check_call
check_call(['dot','-Tpng','InputFile.dot','-o','OutputFile.png'])

You can use pygraphviz. Once you have a graph loaded, you can do

graph.draw('file.png')