在我的机器上运行您的程序时，我把涉及 google.colab的代码注释掉，结果出现如下错误，请问是这么回事？ #1
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AppliedDataSciencePartners/DeepReinforcementLearning#3 我查了下可能是这个问题，我本地运行的时候没有问题，也有可能是用的keras和tensorflow.keras的backend混淆了有关系，colab应该是默认tf的backend
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发件人: "QuanhanSun/Deep-and-Confident-Prediction-for-Time-Series-at-Uber" <[email protected]>;
发送时间: 2020年12月18日(星期五) 中午12:36
收件人: "QuanhanSun/Deep-and-Confident-Prediction-for-Time-Series-at-Uber"<Deep-and-Confident-Prediction-for-Time-Series-at-Uber@noreply.github.com>;
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主题: [QuanhanSun/Deep-and-Confident-Prediction-for-Time-Series-at-Uber] 在我的机器上运行您的程序时，我把涉及 google.colab的代码注释掉，结果出现如下错误，请问是这么回事？ (#1)
注释掉的代码
from google.colab import drive
drive.mount('/content/drive')
import os
path = "/content/drive/My Drive/SaicAILab"
os.chdir(path)
运行错误：发生在 ’预训练模型图解‘处：
from IPython.display import SVG
from keras.utils.vis_utils import model_to_dot
SVG(model_to_dot(ae_model,show_shapes= True, show_layer_names=True, dpi=65).create(prog='dot', format='svg'))
错误提示：
('Failed to import pydot. You must pip install pydot and install graphviz (https://graphviz.gitlab.io/download/), ', 'for pydotprint to work.')
AttributeError Traceback (most recent call last)
in
2 from keras.utils.vis_utils import model_to_dot
3
----> 4 SVG(model_to_dot(ae_model,show_shapes= True, show_layer_names=True, dpi=65).create(prog='dot', format='svg'))
AttributeError: 'NoneType' object has no attribute 'create'
根据提示我安装好了pydot和graphviz 两个包后，重新运行，结果还是出同样的错：
控制台输出如下：
(Keras) F:\AnalyticsZoo\UberPaperimplement>pip install pydot
Collecting pydot
Downloading pydot-1.4.1-py2.py3-none-any.whl (19 kB)
Requirement already satisfied: pyparsing>=2.1.4 in c:\users\wxy\anaconda3\envs\keras\lib\site-packages (from pydot) (2.4.7)
Installing collected packages: pydot
Successfully installed pydot-1.4.1
(Keras) F:\AnalyticsZoo\UberPaperimplement>pip install graphviz
Collecting graphviz
Downloading graphviz-0.15-py2.py3-none-any.whl (18 kB)
Installing collected packages: graphviz
Successfully installed graphviz-0.15
(Keras) F:\AnalyticsZoo\UberPaperimplement>jupyter notebook
[I 12:28:27.235 NotebookApp] Serving notebooks from local directory: F:\AnalyticsZoo\UberPaperimplement
[I 12:28:27.236 NotebookApp] Jupyter Notebook 6.1.5 is running at:
[I 12:28:27.238 NotebookApp] http://localhost:8888/?token=d754dc8d300c895d6009fe14a08f530ac339d74dc5b2522b
[I 12:28:27.242 NotebookApp] or http://127.0.0.1:8888/?token=d754dc8d300c895d6009fe14a08f530ac339d74dc5b2522b
[I 12:28:27.243 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
[C 12:28:27.293 NotebookApp]
To access the notebook, open this file in a browser: file:///C:/Users/wxy/AppData/Roaming/jupyter/runtime/nbserver-16972-open.html Or copy and paste one of these URLs: http://localhost:8888/?token=d754dc8d300c895d6009fe14a08f530ac339d74dc5b2522b or http://127.0.0.1:8888/?token=d754dc8d300c895d6009fe14a08f530ac339d74dc5b2522b
[I 12:28:33.832 NotebookApp] Kernel started: 9de98f90-7991-4cec-86ce-9814f3a1fb6e, name: python3
2020-12-18 12:28:54.044539: I tensorflow/core/platform/cpu_feature_guard.cc:142] This TensorFlow binary is optimized with oneAPI Deep Neural Network Library (oneDNN)to use the following CPU instructions in performance-critical operations: AVX AVX2
To enable them in other operations, rebuild TensorFlow with the appropriate compiler flags.
[I 12:30:33.767 NotebookApp] Saving file at /Deep_and_Confident_Prediction_for_Time_Series_at_Uber.ipynb
jupyter notebook 输出如下：
预训练模型图解
In [15]:
from IPython.display import SVG
from keras.utils.vis_utils import model_to_dot
SVG(model_to_dot(ae_model,show_shapes= True, show_layer_names=True, dpi=65).create(prog='dot', format='svg'))
('Failed to import pydot. You must pip install pydot and install graphviz (https://graphviz.gitlab.io/download/), ', 'for pydotprint to work.')
AttributeError Traceback (most recent call last)
in
2 from keras.utils.vis_utils import model_to_dot
3
----> 4 SVG(model_to_dot(ae_model,show_shapes= True, show_layer_names=True, dpi=65).create(prog='dot', format='svg'))
AttributeError: 'NoneType' object has no attribute 'create'
请教如何解决此问题？多谢！
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我也遇到了大概相似的问题（已解决）我遇到问题和解决问题的过程如下：
显示：
《jupyter notebook中出现ValueError: signal only works in main thread 报错 即 长时间in[*] 解决办法》https://blog.csdn.net/jackhh1/article/details/103435550
《Jupyter Notebook "signal only works in main thread"》
大概如下： 总得来说
这些代码似乎都没有用，我把它们注释之后整体运行是没有错误的！！！ |
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注释掉的代码
from google.colab import drive
drive.mount('/content/drive')
import os
path = "/content/drive/My Drive/SaicAILab"
os.chdir(path)
运行错误：发生在 ’预训练模型图解‘处：
from IPython.display import SVG
from keras.utils.vis_utils import model_to_dot
SVG(model_to_dot(ae_model,show_shapes= True, show_layer_names=True, dpi=65).create(prog='dot', format='svg'))
错误提示：
('Failed to import pydot. You must
pip install pydotand install graphviz (https://graphviz.gitlab.io/download/), ', 'forpydotprintto work.')AttributeError Traceback (most recent call last)
in
2 from keras.utils.vis_utils import model_to_dot
3
----> 4 SVG(model_to_dot(ae_model,show_shapes= True, show_layer_names=True, dpi=65).create(prog='dot', format='svg'))
AttributeError: 'NoneType' object has no attribute 'create'
根据提示我安装好了pydot和graphviz 两个包后，重新运行，结果还是出同样的错：
控制台输出如下：
(Keras) F:\AnalyticsZoo\UberPaperimplement>pip install pydot
Collecting pydot
Downloading pydot-1.4.1-py2.py3-none-any.whl (19 kB)
Requirement already satisfied: pyparsing>=2.1.4 in c:\users\wxy\anaconda3\envs\keras\lib\site-packages (from pydot) (2.4.7)
Installing collected packages: pydot
Successfully installed pydot-1.4.1
(Keras) F:\AnalyticsZoo\UberPaperimplement>pip install graphviz
Collecting graphviz
Downloading graphviz-0.15-py2.py3-none-any.whl (18 kB)
Installing collected packages: graphviz
Successfully installed graphviz-0.15
(Keras) F:\AnalyticsZoo\UberPaperimplement>jupyter notebook
[I 12:28:27.235 NotebookApp] Serving notebooks from local directory: F:\AnalyticsZoo\UberPaperimplement
[I 12:28:27.236 NotebookApp] Jupyter Notebook 6.1.5 is running at:
[I 12:28:27.238 NotebookApp] http://localhost:8888/?token=d754dc8d300c895d6009fe14a08f530ac339d74dc5b2522b
[I 12:28:27.242 NotebookApp] or http://127.0.0.1:8888/?token=d754dc8d300c895d6009fe14a08f530ac339d74dc5b2522b
[I 12:28:27.243 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
[C 12:28:27.293 NotebookApp]
[I 12:28:33.832 NotebookApp] Kernel started: 9de98f90-7991-4cec-86ce-9814f3a1fb6e, name: python3
2020-12-18 12:28:54.044539: I tensorflow/core/platform/cpu_feature_guard.cc:142] This TensorFlow binary is optimized with oneAPI Deep Neural Network Library (oneDNN)to use the following CPU instructions in performance-critical operations: AVX AVX2
To enable them in other operations, rebuild TensorFlow with the appropriate compiler flags.
[I 12:30:33.767 NotebookApp] Saving file at /Deep_and_Confident_Prediction_for_Time_Series_at_Uber.ipynb
jupyter notebook 输出如下：
预训练模型图解
In [15]:
from IPython.display import SVG
from keras.utils.vis_utils import model_to_dot
SVG(model_to_dot(ae_model,show_shapes= True, show_layer_names=True, dpi=65).create(prog='dot', format='svg'))
('Failed to import pydot. You must
pip install pydotand install graphviz (https://graphviz.gitlab.io/download/), ', 'forpydotprintto work.')AttributeError Traceback (most recent call last)
in
2 from keras.utils.vis_utils import model_to_dot
3
----> 4 SVG(model_to_dot(ae_model,show_shapes= True, show_layer_names=True, dpi=65).create(prog='dot', format='svg'))
AttributeError: 'NoneType' object has no attribute 'create'
请教如何解决此问题？多谢！
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