在 ubuntu 14.04 中运行 keras 进行深度学习时出错答案

【问题标题】：Error in running keras for deep learning in ubuntu 14.04在 ubuntu 14.04 中运行 keras 进行深度学习时出错
【发布时间】：2016-12-19 08:58:40
【问题描述】：

我在 keras 中使用张量流作为后端实现了一个神经网络架构。

上个月运行良好，但当我再次尝试运行代码时，出现了一系列错误。我试图卸载我安装的软件包并重新安装它，但它从来没有为我工作过。我也尝试了与 theano 相同的组合作为后端，但它仍然给我错误。

我附上了回溯，希望我能为我的问题找到更好的解决方案。

Using TensorFlow backend.
Traceback (most recent call last):
  File "DeepNeuralNetwork.py", line 9, in <module>
    from keras.models import Sequential
  File "/usr/local/lib/python2.7/dist-packages/keras/__init__.py", line 2, in <module>
    from . import backend
  File "/usr/local/lib/python2.7/dist-packages/keras/backend/__init__.py", line 69, in <module>
    from .tensorflow_backend import *
  File "/usr/local/lib/python2.7/dist-packages/keras/backend/tensorflow_backend.py", line 1, in <module>
    import tensorflow as tf
  File "/usr/local/lib/python2.7/dist-packages/tensorflow/__init__.py", line 23, in <module>
    from tensorflow.python import *
  File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/__init__.py", line 65, in <module>
    import tensorflow.contrib as contrib
  File "/usr/local/lib/python2.7/dist-packages/tensorflow/contrib/__init__.py", line 28, in <module>
    from tensorflow.contrib import learn
  File "/usr/local/lib/python2.7/dist-packages/tensorflow/contrib/learn/__init__.py", line 72, in <module>
    from tensorflow.contrib.learn.python.learn import *
  File "/usr/local/lib/python2.7/dist-packages/tensorflow/contrib/learn/python/__init__.py", line 23, in <module>
    from tensorflow.contrib.learn.python.learn import *
  File "/usr/local/lib/python2.7/dist-packages/tensorflow/contrib/learn/python/learn/__init__.py", line 25, in <module>
    from tensorflow.contrib.learn.python.learn import estimators
  File "/usr/local/lib/python2.7/dist-packages/tensorflow/contrib/learn/python/learn/estimators/__init__.py", line 23, in <module>
    from tensorflow.contrib.learn.python.learn.estimators.autoencoder import TensorFlowDNNAutoencoder
  File "/usr/local/lib/python2.7/dist-packages/tensorflow/contrib/learn/python/learn/estimators/autoencoder.py", line 25, in <module>
    from tensorflow.contrib.learn.python.learn.estimators.base import TensorFlowBaseTransformer
  File "/usr/local/lib/python2.7/dist-packages/tensorflow/contrib/learn/python/learn/estimators/base.py", line 34, in <module>
    from tensorflow.contrib.learn.python.learn.estimators import estimator
  File "/usr/local/lib/python2.7/dist-packages/tensorflow/contrib/learn/python/learn/estimators/estimator.py", line 38, in <module>
    from tensorflow.contrib.learn.python.learn.io import data_feeder
  File "/usr/local/lib/python2.7/dist-packages/tensorflow/contrib/learn/python/learn/io/__init__.py", line 22, in <module>
    from tensorflow.contrib.learn.python.learn.io.dask_io import extract_dask_data
  File "/usr/local/lib/python2.7/dist-packages/tensorflow/contrib/learn/python/learn/io/dask_io.py", line 26, in <module>
    import dask.dataframe as dd
  File "/usr/local/lib/python2.7/dist-packages/dask/dataframe/__init__.py", line 5, in <module>
    from .io import (from_array, from_pandas, from_bcolz,
  File "/usr/local/lib/python2.7/dist-packages/dask/dataframe/io/__init__.py", line 6, in <module>
    from .csv import read_csv, to_csv, read_table
  File "/usr/local/lib/python2.7/dist-packages/dask/dataframe/io/csv.py", line 147, in <module>
    CPU_COUNT = psutil.cpu_count()
AttributeError: 'module' object has no attribute 'cpu_count'

【问题讨论】：

您的dask 安装似乎存在问题。仅使用import dask.dataframe as dd 是否也会出现同样的错误？
是的，我在导入 dask.dataframe 时遇到了同样的错误
有什么解决办法
例如重新安装dask。如果您创建一个新的干净环境并通过pip 或您通常使用的任何方法安装dask，您是否会遇到相同的错误？
我会试试的

标签： python ubuntu tensorflow theano keras

【解决方案1】：

从回溯的最后几行可以看出：

 File "/usr/local/lib/python2.7/dist-packages/dask/dataframe/io/csv.py", line 147, in <module>
    CPU_COUNT = psutil.cpu_count()
AttributeError: 'module' object has no attribute 'cpu_count'

错误是由于dask 试图调用模块psutil 的属性cpu_count。这可能是由于安装了错误的psutil 版本，只需升级或重新安装即可解决。

【讨论】：