I\'m using Anaconda Python 2.7 on windows 10
I was planning on doing Keras visualization so (whilst spyder was open) I opened the Anaconda command prompt and pip ins
it is nothing related to pydot or graphviz if you have installed via pip.
You should go download graphviz brinary and install.
Don't forget adding the bin folder into your PATH: C:/Program Files (x86)/Graphviz2.38/bin/
And after that to close and reopen your console.