ImportError：无法从 tensorflow.python.keras._impl.keras.backend 导入名称“abs”答案

【问题标题】：ImportError: cannot import name 'abs' from tensorflow.python.keras._impl.keras.backendImportError：无法从 tensorflow.python.keras._impl.keras.backend 导入名称“abs”
【发布时间】：2019-12-15 19:50:45
【问题描述】：

当前版本堆栈：

python 3.5

tensorflow                    1.14.0                
tensorflow-estimator          1.14.0                
tensorflow-gpu                1.14.0                
tensorflow-tensorboard        0.1.8 

protobuf                      3.9.1

Keras                         2.2.4                 
Keras-Applications            1.0.7                 
Keras-Preprocessing           1.0.9

驱动程序和机器：

Ubuntu 16.04 , NVIDIA-SMI 396.54 , CUDA - 9.0 , CuDnn 7 , libcudnn - 7.4.1

总结-

无法从 tensorflow.python.keras._impl.keras.backend 导入 abs tensorflow-gpu == 1.14.0

并且无法在 tensorflow-gpu == 1.8.0 上获取 CheckpointableBase 属性

哪个 tensorflow-gpu 和 keras 版本同时支持 tensorflow.python.keras._impl.keras.backend 中的 CheckpointableBase 属性和“abs”？

详情 -

我目前正在使用 Keras==2.2.4 训练 matterport mask rcnn。根据一些threads 为了获得 abs 我尝试将 tensorflow-gpu 更新为 1.8.0 ，更新 protobuf。虽然我当时能够导入 abs，但最终在 tensorflow-gpu 上收到“AttributeError: module 'tensorflow.python.training.checkpointable' has no attribute 'CheckpointableBase'”到 1.8.0。然后为了获得 CheckpointableBase 一些线程再次更新 tensorflow-gpu == 1.14.0。

追溯：

Traceback (most recent call last):
  File "/home/kalpit/Desktop/palash/m-rcnn-traning/data/libraries/bacteria_rcnn_train.py", line 53, in <module>
    import keras 
  File "/usr/local/lib/python3.5/dist-packages/keras/__init__.py", line 3, in <module>
    from . import utils
  File "/usr/local/lib/python3.5/dist-packages/keras/utils/__init__.py", line 6, in <module>
    from . import conv_utils
  File "/usr/local/lib/python3.5/dist-packages/keras/utils/conv_utils.py", line 9, in <module>
    from .. import backend as K
  File "/usr/local/lib/python3.5/dist-packages/keras/backend/__init__.py", line 84, in <module>
    from .tensorflow_backend import *
  File "/usr/local/lib/python3.5/dist-packages/keras/backend/tensorflow_backend.py", line 5, in <module>
    import tensorflow as tf
  File "/usr/local/lib/python3.5/dist-packages/tensorflow/__init__.py", line 28, in <module>
    from tensorflow.python import pywrap_tensorflow  # pylint: disable=unused-import
  File "/usr/local/lib/python3.5/dist-packages/tensorflow/python/__init__.py", line 83, in <module>
    from tensorflow.python import keras
  File "/usr/local/lib/python3.5/dist-packages/tensorflow/python/keras/__init__.py", line 26, in <module>
    from tensorflow.python.keras import activations
  File "/usr/local/lib/python3.5/dist-packages/tensorflow/python/keras/activations/__init__.py", line 22, in <module>
    from tensorflow.python.keras._impl.keras.activations import elu
  File "/usr/local/lib/python3.5/dist-packages/tensorflow/python/keras/_impl/keras/__init__.py", line 21, in <module>
    from tensorflow.python.keras._impl.keras import activations
  File "/usr/local/lib/python3.5/dist-packages/tensorflow/python/keras/_impl/keras/activations.py", line 23, in <module>
    from tensorflow.python.keras._impl.keras import backend as K
  File "/usr/local/lib/python3.5/dist-packages/tensorflow/python/keras/_impl/keras/backend.py", line 38, in <module>
    from tensorflow.python.layers import base as tf_base_layers
  File "/usr/local/lib/python3.5/dist-packages/tensorflow/python/layers/base.py", line 25, in <module>
    from tensorflow.python.keras import backend
  File "/usr/local/lib/python3.5/dist-packages/tensorflow/python/keras/backend/__init__.py", line 22, in <module>
    from tensorflow.python.keras._impl.keras.backend import abs
ImportError: cannot import name 'abs'

【问题讨论】：

标签： tensorflow keras deep-learning python-3.5

【解决方案1】：

嗨，

我能够通过从 dist-packages 目录本身删除所有 tensorFlow 和 keras python3 包，使用 pip3 卸载然后再次安装 tensorflow==1.8.0
来解决此问题 tensorflow-gpu==1.8.0 , Keras==2.2.4

( 导致此特定错误的潜在原因是 python 在 dis-packages 目录中引用了多个 tensoflow-gpu,keras 版本包文件。虽然通过 pip3 安装特定的 tensoflow-gpu,keras 版本应该理想地删除以前的现有版本。但是在我的情况下，这没有发生。）

解决方案：

使用$ locate --basename '\tensorflow' 命令在 dist-packages 目录中找到 tensorflow 和 keras 包（前提是您使用的是 Ubuntu）。在我的情况下是

$ locate --basename '\tensorflow'

输出 -

/usr/local/lib/python3.5/dist-packages/tensorflow
/usr/local/lib/python3.5/dist-packages/tensorflow/include/tensorflow
/usr/share/nginx/html/projects/python/machine-learning/objectDetection/models-master/research/syntaxnet/tensorflow

$ locate --basename '\keras'

输出-

/usr/local/lib/python3.5/dist-packages/keras
/usr/local/lib/python3.5/dist-packages/tensorflow/keras
/usr/local/lib/python3.5/dist-packages/tensorflow/contrib/keras
/usr/local/lib/python3.5/dist-packages/tensorflow/contrib/keras/api/keras
/usr/local/lib/python3.5/dist-packages/tensorflow/python/keras
/usr/local/lib/python3.5/dist-packages/tensorflow/python/keras/_impl/keras
/usr/local/lib/python3.5/dist-packages/tensorflow/tools/api/generator/api/keras
/usr/share/nginx/html/projects/python/Playground/lambda/testkeras/keras

现在您已知道所需的包位置。只需使用以下命令删除 tensorflow 和 keras 目录并卸载软件包

删除目录

sudo rm -R /usr/local/lib/python3.5/dist-packages/tensorflow/
sudo rm -R /usr/share/nginx/html/projects/python/machine-learning/objectDetection/models-master/research/syntaxnet/tensorflow

sudo rm -R /usr/local/lib/python3.5/dist-packages/keras/
sudo rm -R /usr/share/nginx/html/projects/python/Playground/lambda/testkeras/keras

使用 pip3 卸载

sudo pip3 uninstall tensorflow
sudo pip3 uninstall tensorflow-gpu
sudo pip3 uninstall keras

再次安装tensorflow、tensorflow-gpu、keras

sudo pip3 install tensorflow==1.8.0
sudo pip3 install tensorflow-gpu==1.8.0 sudo pip3 install Keras==2.2.4

【讨论】：