centos7编译安装Python3.6（与2.7并存）

首先去官网下载python3.6

https://www.python.org/

环境准备：#yum install openssl-devel bzip2-devel expat-devel gdbm-devel readline-devel sqlite-devel

mkdir /usr/local/python3

准备安装python

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

make

makeinstall

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

ln -s /usr/local/python3/bin/pip /usr/bin/pip3

cd /usr/bin

mv python python.bak

mv python3 python

在etc/profile最后一行中加入变量

export PATH="$PATH:/usr/local/python3/bin"

输入Python

>>>python 3.6

输入pip3 -V 检查是否安装成功