一键脚本

yum groupinstall 'Development Tools' zlib-devel bzip2-devel gcc openssl-devel ncurses-devel readline-devel -y \ &&
wget https://www.python.org/ftp/python/3.6.5/Python-3.6.5.tgz \ &&
tar -zxf Python*  \ &&
cd Python-3.6.5  \ &&
./configure --prefix=/usr/local/python3  \ &&
make && make install   \ &&
echo 'export PATH=$PATH:/usr/local/python3/bin' >> ~/.bashrc   \ &&
rm -f /usr/bin/python           \ &&
ln -s /usr/local/python3/bin/python3.6 /usr/bin/python      \ &&
ln -s /usr/local/python3/bin/pip3 /usr/bin/pip             \ &&
mkdir /root/.pip/                                      \ &&
cat >/root/.pip/pip.conf<<EOF
[global]
index-url =https://pypi.tuna.tsinghua.edu.cn/simple
EOF

1、安装开发包和依赖包

yum groupinstall 'Development Tools' -y            #安装开发包

yum install zlib-devel bzip2-devel gcc openssl-devel ncurses-devel -y      #安装可能依赖的包

yum install readline-devel -y                #不安装进入python解释器的时候可能输入字符会乱码

2、下载 Python3.5代码包

wget https://www.python.org/ftp/python/3.6.5/Python-3.6.5.tgz

3 编译

[root@db02 ~]# tar -zxf Python-3.6.5.tgz

[root@db02 ~]# cd Python-3.6.5

[root@db02 Python-3.6.5]#

./configure --prefix=/usr/local/python3

make && make install

4 设置环境变量

echo 'export PATH=$PATH:/usr/local/python3/bin' >> ~/.bashrc做一些必要配置
rm -f /usr/bin/python                                       #删除老版本的软链接
ln -s /usr/local/python3/bin/python3.6 /usr/bin/python      #做新版本的软链接
ln -s /usr/local/python3/bin/pip3 /usr/bin/pip              #pip软链接
mkdir /root/.pip/                                           #国内镜像vi /root/.pip/pip.confcat >/root/.pip/pip.conf<<EOF
[global]
index-url =https://pypi.tuna.tsinghua.edu.cn/simple
EOF

安装mycli

pip install mycli
ln -s /usr/local/python3/bin/mycli /usr/bin/mycli

5、更新python2.6的yum配置。

vim /usr/bin/yum

通过vim修改yum的配置

#!/usr/bin/python改为#!/usr/bin/python2.6，保存退出。

完成了python3的安装。