1. install pip
1). yum -y install epel-release
2). yum install python-pip
3). pip install --upgrade pip
2. pip install -U tensorflow
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install python3.6
1.yum install epel-release
2.yum install python36
3. sudo ln -s /usr/local/python3/bin/python3 /usr/bin/python
4. sudo vi /usr/bin/yum 将第一行指定的 python 版本改为 python2.7（#!/usr/bin/python 改为 #!/usr/bin/python2.7）
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install pip3
1. wget --no-check-certificate https://bootstrap.pypa.io/get-pip.py
2. python3 get-pip.py
3. pip3 -V