centOS6.5上先删除python3.6.5 ，然后重新安装python3.6.4

1.centOS6.5上先删除python3.6.5  https://blog.csdn.net/yohjob/article/details/90760862 2.重新安装python3.6.4 https://www.cnblogs.com/gqv2009/p/12347074.html 更新pip和setuptools 1.更新pip: python -m pip install --up

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