操作系统 ： CentOS7.5.1804_x64
Python 版本 : 3.6.8
keras + tensorflow 环境搭建，使用cpu，安装命令如下：
virtualenv -p /usr/bin/python3.6 py36env
source py36env/bin/activate
pip install -r req.txt
req.txt 文件内容如下：
absl-py==0.7.1
astor==0.8.0
attrs==19.1.0
backcall==0.1.0
bleach==3.1.0
cycler==0.10.0
decorator==4.4.0
defusedxml==0.6.0
entrypoints==0.3
et-xmlfile==1.0.1
gast==0.2.2
google-pasta==0.1.7
graphviz==0.11.1
grpcio==1.22.0
h5py==2.9.0
interval==1.0.0
ipykernel==5.1.1
ipython-genutils==0.2.0
ipywidgets==7.5.0
jdcal==1.4.1
jedi==0.14.1
Jinja2==2.10.1
joblib==0.13.2
jsonschema==3.0.1
jupyter==1.0.0
jupyter-client==5.3.1
jupyter-console==6.0.0
jupyter-core==4.5.0
Keras==2.2.4
Keras-Applications==1.0.8
Keras-Preprocessing==1.1.0
kiwisolver==1.1.0
Markdown==3.1.1
MarkupSafe==1.1.1
matplotlib==3.1.1
mistune==0.8.4
nbconvert==5.5.0
nbformat==4.4.0
numpy==1.16.2
openpyxl==2.6.2
pandas==0.24.2
pandocfilters==1.4.2
parso==0.5.1
pexpect==4.7.0
pickleshare==0.7.5
pkg-resources==0.0.0
prometheus-client==0.7.1
prompt-toolkit==2.0.9
protobuf==3.9.0
ptyprocess==0.6.0
pydot==1.4.1
Pygments==2.4.2
pyparsing==2.4.0
pyrsistent==0.15.3
python-dateutil==2.8.0
pytz==2019.1
PyYAML==5.1.1
pyzmq==18.0.2
qtconsole==4.5.1
scikit-learn==0.21.2
scipy==1.3.0
Send2Trash==1.5.0
six==1.12.0
sklearn==0.0
tensorboard==1.14.0
tensorflow==1.14.0
tensorflow-estimator==1.14.0
termcolor==1.1.0
terminado==0.8.2
testpath==0.4.2
traitlets==4.3.2
wcwidth==0.1.7
webencodings==0.5.1
Werkzeug==0.15.4
widgetsnbextension==3.5.0
wrapt==1.11.2
