解决 Windows OSError - pydot failed to call GraphViz.Please install GraphViz 报错

import keras from keras.models import Modelfrom keras.layers import Inputfrom keras.layers import Conv2Dfrom keras.layers import GlobalAveragePooling2Dfrom keras.layers import Denseimport numpy as npfrom keras.utils import plot_modelimport osos.environ["PATH"] += os.pathsep + r'E:\Program Files (x86)\Graphviz2.38\bin'A = Input(shape=(16,16,3))x = Conv2D(filters=10, kernel_size=(3,3), padding='same', activation='relu')(A)x = Conv2D(filters=10, kernel_size=(3,3), padding='same', activation='relu')(x)x = GlobalAveragePooling2D()(x)x = Dense(units = 5, activation='softmax')(x)model = Model(A,x)model.summary()test_input = np.random.rand(1,16,16,3)results = model.predict(test_input)plot_model(model)

builtins.OSError: `pydot` failed to call GraphViz.Please install GraphViz (https://www.graphviz.org/) and ensure that its executables are in the $PATH.

pip install pydot-ng pip install graphviz pip install pydot 

graphviz-2.38.msi

pydot

Dot

Dot

pydot

Dot

Dot

class Dot(Graph):    """A container for handling a dot language file.    This class implements methods to write and process    a dot language file. It is a derived class of    the base class 'Graph'.    """

self.prog = 'dot'

import platformsystem = platform.system()            if system == 'Windows':    self.prog = 'dot.exe'else:    self.prog = 'dot'