I am running Python3.4 on Windows 7. I am trying to use the Python interface for graphviz. This is a script I intend to run:
from graphviz import Digraph imp
when you add C:\Program Files (x86)\Graphviz2.38\bin to PATH, then you must close your IDE enviroment such as spyder and restart, you'll solve the "RuntimeError:make sure the Graphviz executables are on your systems' path"