02.将python3作为centos7的默认python命令

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博客为日常工作学习积累总结：

由于个人兴趣爱好对python有了解：

1.安装Python3：

参考博客：https://zhuanlan.zhihu.com/p/47868341

安装依赖包：

yum -y install zlib zlib-devel
yum -y install bzip2 bzip2-devel
yum -y install ncurses ncurses-devel
yum -y install readline readline-devel
yum -y install openssl openssl-devel
yum -y install openssl-static
yum -y install xz lzma xz-devel
yum -y install sqlite sqlite-devel
yum -y install gdbm gdbm-devel
yum -y install tk tk-devel
yum -y install gcc

下载安装包：wget https://www.python.org/ftp/python/3.6.5/Python-3.6.5.tgz

编译安装：tar zxf Python-3.6.5.tgz cd Python-3.6.5

安装到指定目录：./configure --with-ssl --prefix=/application/python3

返回信息：

如下提示检查通过：

If you want a release build with all optimizations active (LTO, PGO, etc),

please run ./configure --enable-optimizations

使用make进行编译：make

安装：make install

安装完成：

Collecting setuptools

Collecting pip