ubuntu中把python升级到3.7

在ubuntu系统中把python升级到3.7

终端命令升级Python至Python3.7

1、增加ppa仓库

sudo add-apt-repository ppa:deadsnakes/ppa

2、升级apt索引

sudo apt-get update
sudo apt-get upgrade
sudo apt-get autoremove

3、更新python3.7

sudo apt-get install python3.7

4、更换系统默认的软链命令Python3到新的Python3.7

sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.7 2