ImportError: Failed to import pydot. You must install pydot and graphviz for `pydotprint` to work.

ImportError: Failed to import pydot. You must install pydot and graphviz for `pydotprint` to work.

我在用keras可视化模型时，遇见了上述错误，错误信息为：

Traceback (most recent call last): File "HARRISON_feature_model.py", line 55, in plot_model(model, to_file='vgg_feature_model.png', show_shapes=True, show_layer_names=False) File "/home/idc/anaconda3/envs/hashtag/lib/python2.7/site-packages/keras/utils/vis_utils.py", line 131, in plot_model dot = model_to_dot(model, show_shapes, show_layer_names, rankdir) File "/home/idc/anaconda3/envs/hashtag/lib/python2.7/site-packages/keras/utils/vis_utils.py", line 52, in model_to_dot _check_pydot() File "/home/idc/anaconda3/envs/hashtag/lib/python2.7/site-packages/keras/utils/vis_utils.py", line 27, in _check_pydot raise ImportError('Failed to import pydot. You must install pydot'ImportError: Failed to import pydot. You must install pydot and graphviz for `pydotprint` to work.

解决办法为：

pip install pydot-ngpip install graphviz# 或者sudo apt install python-pydot python-pydot-ng graphviz

然后就解决了，我的系统为ubuntu 16.04

或者：

sudo pip3 install pydotsudo pip3 install graphvizsudo apt-get install graphviz

下面解决方案也是ubuntu 16.04，不过用的是python3

参考文献

[1].Keras实现LeNet-5网络，并可视化网络结构图.

[2].keras模型可视化及解决'Failed to import pydot'问题.Failed to import pydot. You must install pydot and graphviz for `pydotprint` to work.​

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