CentOS7.2安裝Python3.6和python2.7共存

首先去官網下載下傳python3.6的linux下代碼壓縮包

https://www.python.org/

環境準備：#yum -y install gcc openssl-devel bzip2-devel expat-devel gdbm-devel readline-devel sqlite-devel

mkdir /usr/local/python3

準備安裝python

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

make

make install

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

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

cd /usr/bin

mv python python.bak

mv python3 python

cd /usr/bin

mv python python.bak

mv python3 python

在etc/profile最後一行中加入變量

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

輸入Python

>>>python 3.6

輸入pip3 -V 檢查是否安裝成功