下载python地址：https://www.python.org/ftp/python/3.8.1/
下载tgz文件后，解压：tar -xvzf Python-3.8.1.tgz
cd Python3.8.1
./configure --prefix=/usr/local/python3 --enable-optimizations
./configure --with-ssl --prefix=/usr/local/python3
./configure
sudo make
sudo make install
sudo apt-get install pip3
# 升级pip
sudo pip3 install --upgrade pip
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在ubuntu软件源里zlib和zlib-devel叫做zlib1g zlib1g.dev
$ sudo apt-get install zlib1g
$ sudo apt-get install zlib1g.dev 默认不安装
