Linux 中安装python

1、下载安装包

wget https://www.python.org/ftp/python/3.5.0/Python-3.5.0b4.tgz

2、创建安装路径

mkdir /usr/local/python3

3、解压

tar -zvxf Python-3.5.0b4.tgz

4、安装

进入解压目录

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

make

make install

5、更改环境变量

先把旧版本改名

which python

(/usr/bin/python)

mv /usr/bin/python /usr/bin/python2

创建链接

ln /usr/local/python3/bin/python3.5 /usr/bin/python