Centos7 安装Python3

yum install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gcc make 

yum -y install epel-release

yum install python-pip

pip install wget

wget https://www.python.org/ftp/python/3.6.4/Python-3.6.4.tar.xz

xz -d Python-3.6.4.tar.xz
tar -xf Python-3.6.4.tar

 

./configure prefix=/usr/local/python3
make && make install

mv /usr/bin/python /usr/bin/python.bak

ln -s /usr/local/python3/bin/python3.6 /usr/bin/python

vi /usr/bin/yum
把#! /usr/bin/python修改为#! /usr/bin/python2

vi /usr/libexec/urlgrabber-ext-down
把#! /usr/bin/python 修改为#! /usr/bin/python2

原文：https://blog.csdn.net/lovefengruoqing/article/details/79284573