1,官网下载python3.8版本:https://www.python.org/downloads/
2,解压缩 $ tar -xf Python-3.8.10.tar.xz
3,$ sudo apt update
$ sudo apt install build-essential zlib1g-dev libncurses5-dev libgdbm-dev libnss3-dev libssl-dev libreadline-dev libffi-dev
4,编译安装
$ cd Python-3.8.10
$ ./configure --enable-optimizations
$ make
$ sudo make altinstall
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