ubuntu16.04纯净版-安装Python3.8.1

0.配置依赖环境，如果不进行这步可能会出现一些问题

sudo apt-get install zlib1g-dev libbz2-dev libssl-dev libncurses5-dev libsqlite3-dev

 1.去官网下载Python-3.8.1.tar.xz

wget https://www.python.org/ftp/python/3.8.1/Python-3.8.1.tar.xz

 2.解压下载的包

tar -xvJf  Python-3.8.1.tar.xz

3.进入解压后的目录

cd Python-3.8.1/

4.安装依赖

执行下列命令安装依赖过程中，如有提示，一律　　y　　。

sudo apt-get install python-dev

sudo apt-get install libffi-dev

sudo apt-get install libssl-dev

sudo apt-get install -y make build-essential libssl-dev zlib1g-dev libbz2-dev libreadline-dev libsqlite3-dev wget curl llvm libncurses5-dev libncursesw5-dev xz-utils tk-dev

5.anzhuang

./configure --with-ssl

make

sudo make install

6.tianjiayinyong

#将原来的链接备份

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

#添加python3的软链接

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

#测试是否安装成功了

python -V