ubuntu16更新python至更高版本
添加 deadsnakes PPA 源$ sudo add-apt-repository ppa:deadsnakes/ppaPress [ENTER] to continue or Ctrl-c to cancel adding it.安装 python 3.8$ sudo apt install python3.8$ python3.8 -VPython 3.8.2将 python 各版本添加到 update-alternatives$ which python..
