在ubuntu desktop 也可以采用快捷键Ctrl Alt T进入Terminal
增加Universe repo以便可以安装python2sudo apt-add-repository universe sudo apt updateInstall Python2.7 on Ubuntu 20.04 LTS
sudo apt install python2-minimal检查Python2 version
python -V系统中可以用的python版本
sudo update-alternatives --install /usr/bin/python python /usr/bin/python2 1 sudo update-alternatives --install /usr/bin/python python /usr/bin/python3 2 update-alternatives --config python安装 Pip 2 on Ubuntu 20.04
curl https://bootstrap.pypa.io/pip/2.7/get-pip.py --output get-pip.py sudo python2 get-pip.py卸载 (optional)
sudo apt remove python2-minimal
