一、环境
1，系统：CentOS 7
2，用户：root
3，Python版本：python3.6.8
二、安装
1，登录到centOS机器，新建文件夹
mkdir /usr/local/python3
2，将安装包和依赖包里的文件上传至/usr/local/python3
3，进入目录
cd /usr/local/python3/
4，安装依赖
#安装依赖包 zlib-devel
rpm -ivh zlib-devel-1.2.7-17.el7.x86_64.rpm
#安装依赖包 bzip2-devel
rpm -ivh bzip2-devel-1.0.6-13.el7.x86_64.rpm
#安装依赖包 epel-release
rpm -ivh epel-release-7-11.noarch.rpm
#安装依赖包 ncurses-devel
rpm -ivh ncurses-devel-5.9-13.20130511.el7.x86_64.rpm
# 安装依赖包 gcc（一定要按照以下的顺序进行安装）
rpm -ivh mpfr-3.1.1-4.el7.x86_64.rpm
rpm -ivh libmpc-1.0.1-3.el7.x86_64.rpm
rpm -ivh kernel-headers-3.10.0-514.el7.x86_64.rpm
rpm -ivh glibc-headers-2.17-157.el7.x86_64.rpm
rpm -ivh glibc-devel-2.17-157.el7.x86_64.rpm
rpm -ivh cpp-4.8.5-11.el7.x86_64.rpm
rpm -ivh gcc-4.8.5-11.el7.x86_64.rpm
# 安装依赖包 gcc-c+
rpm -ivh libstdc++-4.8.5-11.el7.x86_64.rpm
rpm -ivh libstdc++-devel-4.8.5-11.el7.x86_64.rpm
rpm -ivh gcc-c++-4.8.5-11.el7.x86_64.rpm
5，进行解压
tar -xzvf Python-3.6.8.tgz
6，进入解压路径
cd /usr/local/python3/Python-3.6.8
7，设置安装路径
./configure --prefix=/usr/local/python3.6 --enable-shared
make
make install
ln -s /usr/local/python3.6/bin/python3 /usr/bin/python3
echo "/usr/local/python3.6/lib" > /etc/ld.so.conf.d/python3.6.conf
ldconfig
8，检查Python3.6.8是否安装成功
python3 -V
显示如下图，说明成功；
9，删除安装包以及依赖包
rm -rf /usr/local/python3
三、安装pip3
1，python 3.6.8中自带了pip，所以只需要建立链接就行
ln -s /usr/local/python3.6/bin/pip3.6 /usr/bin/pip3
2，检查pip是否安装成功
pip3 -V
出现如下图，表示正常：
