操作步骤如下：
1）安装Development tools
yum groupinstall "Development tools"
2）安装编译Python需要的包包
yum install zlib-devel yum install bzip2-devel yum install openssl-devel yum install ncurses-devel yum install sqlite-devel
yum install tcl-devel
yum install tk-devel
3）
下载并解压Python 2.7.12的源代码
cd /opt wget --no-check-certificate https://www.python.org/ftp/python/2.7.12/Python-2.7.12.tar.xz tar xf Python-2.7.12.tar.xz cd Python-2.7.12
4）编译与安装Python 2.7.12
./configure --prefix=/usr/local make && make install
5）将python命令指向Python 2.7.12（可省略）
ln -s /usr/local/bin/python2.7 /usr/local/bin/python
6）检查Python版本
# python --version Python 2.7.12
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