Yum安装python3

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yum install epel-release -y
yum install https://centos7.iuscommunity.org/ius-release.rpm -y

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yum install python36u -y

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ln -s /usr/bin/python3.6 /usr/bin/python3

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yum install python36u-pip -y

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ln -s /usr/bin/pip3.6 /usr/bin/pip3