Using keras to visualize the network model, failed to import pydot appears

One 、 For installation graphviz、pydot、pygraphviz

1. Install first graphviz

pip install graphviz

After installation bin Add environment variable path Inside

2. install pydot or pydot-ng

Use pip Install it on the command line .

3. install pygraphviz

3.1 Download... On the official website pygraphviz-1.5.zip

3.2 Unzip to pygraphviz-1.5 Under the path , And then modify setup.py Of 57、58 Two lines , Such as ：

      include_dirs=['C:\\Program Files (x86)\\Graphviz2.38\\include'],
      library_dirs=['C:\\Program Files (x86)\\Graphviz2.38\lib'],

3.3 stay pygraphviz-1.5 Under the table of contents , Run on command line

    pip setup.py install

There is no visual c++ 14.0, So you can't compile , I choose a lazy way , Direct download whl file , Download address ：

https://github.com/CristiFati/Prebuilt-Binaries/tree/master/PyGraphviz/v1.5/Graphviz-2.42.2

download pygraphviz-1.5-cp37-cp37m-win_amd64.whl after , Use... On the command line pip The command can be installed directly

Two 、 Use

After installation , Use the following ：

from tensorflow.keras.utils import plot_model

plot_model(model, to_file='filename.png')