修改配置
sudo update-alternatives --install /usr/bin/python python /usr/bin/python2.7 2
# 添加Python2可选项,优先级为2
sudo update-alternatives --install /usr/bin/python python /usr/bin/python3.6 1
# 添加Python3可选项,优先级为1
sudo update-alternatives --config python
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出现如下配置菜单,发现现在是自动模式,选择python2,要设置为python3只需要选择2,enter即可啦~
补充
给python2和python3装上pip,注意不能互相用对方的pip
sudo apt-get install python2-pip
sudo apt-get install python3-pip
From: https://blog.csdn.net/weixin_40293491/article/details/81183491