Permission error while saving graphs using graphvix

[HideOnHeart0507]

Hi, I was using your library for minimizing a 3 variable DFA and while using graph.render it shows permission error as the graph below.

[marcofavorito]

Hi. From the error message, it looks like you are calling the render function with argument "C:/Python". The argument of render is the output path where the automaton will be printed.
With "C:/Python", you actually tried to replace your Python executable (fortunately, your OS prevented that).
Try with another string, e.g. "automata". This should print an automata.dot file in the current working directory.