sudo su
sudo apt update
sudo apt install make build-essential libssl-dev zlib1g-dev liblzma-dev
sudo apt install libbz2-dev libreadline-dev libsqlite3-dev llvm
sudo apt install libncurses5-dev libncursesw5-dev xz-utils tk-dev
https://www.python.org/ftp/python/3.8.3/
1、到Python3.8.3所在的目录，右键终端输入，解压包：
tar -xvf Python-3.8.3.tgz
2、切换到解压后的Python目录，右键终端输入
./configure --enable-optimizations --with-ssl
3、安装：sudo make altinstall
4、检查一下是否正常安装：
python3.8 -V
我选择直接
sudo apt install docker-ce
sudo docker pull balabalabala
除非是你的某个应用需要用到这个python环境，开发的话还是建议用anaconda之类的环境。
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deepin deepin 
一、获取系统root权限
sudo su
二、安装编译需要的必要组件：
sudo apt update
sudo apt install make build-essential libssl-dev zlib1g-dev liblzma-dev
sudo apt install libbz2-dev libreadline-dev libsqlite3-dev llvm
sudo apt install libncurses5-dev libncursesw5-dev xz-utils tk-dev
三、下载python3.8.3，想装其他版本链接自找。：
https://www.python.org/ftp/python/3.8.3/
1、到Python3.8.3所在的目录，右键终端输入，解压包：
tar -xvf Python-3.8.3.tgz
2、切换到解压后的Python目录，右键终端输入
./configure --enable-optimizations --with-ssl
3、安装：sudo make altinstall
4、检查一下是否正常安装：
python3.8 -V