Keras: “RuntimeError: Failed to import pydot.” after installing graphviz and pydot

Question

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

Answer 1

1)Conda install graphviz
2)pip install graphviz
3)pip install pydot
then:

import os os.environ["PATH"] += os.pathsep + AppData\\Local\\Continuum\\anaconda3\\envs\\tensorflow\\Library\\bin\\graphviz'

Answer 2

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.

Answer 3

Keras 2.0.6 looks for pydot-ng (better maintained) and then if it's not found, falls back on pydot. I resolved this issue by installing pydot-ng from source.

Answer 4

The below works inside a jupyter notebook runing in a jupyter/tensorflow-notebook docker container.

!conda install -y graphviz pydotplus

import pydotplus
import keras.utils
keras.utils.vis_utils.pydot = pydotplus
keras.utils.plot_model(your_model_name, to_file='model.png', show_shapes=True)

You need to tell keras to use pydotplus

Answer 5

If you are using an Anaconda environment, you'd better install pydotplus and graphviz via conda install.

conda install graphviz
conda install pydotplus

Note: You'd better update your Keras to the newest version (2.0.9+), it can automatically check and choose which one of pydotplus,pydot-ng,pydot to be used. pydot-ng has been unmaintained for a long time, and it only supports py3.4- and py2.7.

Answer 6

1. Install graphviz to the system. Download the package from here, or on Mac:

   brew install graphviz
   

2. Install python pydot-ng and graphviz wrapper.

   pip install pydot-ng graphviz
   conda install -c anaconda pydot-ng #Anaconda user
   

3. Use pydot-ng in your code

   import pydot_ng as pydot
   

4. If Keras visualization utils still uses pydot, try to change import pydot to import pydot_ng as pydot in visualize_util.py