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linux安装python3

1. 下载
   • wget https://www.python.org/ftp/python/3.6.4/Python-3.6.4.tgz
2. 解压
   • tar zxvf Python-3.6.4.tgz
3. 编译
   • cd Python-3.6.4
   • ./configure —prefix=/etc/python/python3.6
   • yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel
     • 确保pip的时候不会有出错
   • make && make install
4. 启动
   • python3
   • 检查pip3 --version
5. 设置
   • ln -s /etc/python/python3.6/bin/python3.6 /usr/bin/python3
   • ln -s /etc/python/python3.6/bin/pip3.6 /usr/bin/pip3