Ubuntu下安装python3.7
安装步骤
1. 不要卸载原来的python2.7
2. 执行以下命令
sudo add-apt-repository ppa:jonathonf/python-3.7
如果提示 bash: add-apt-repository: command not found,执行
sudo apt-get install software-properties-common python-software-properties
之后,执行
sudo apt-get update
sudo apt-get install python3.6
3. 调整Python3的优先级,使得3.7优先级较高
sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.5 1
sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.7 2
4. 更改默认值,python默认为Python2,现在修改为Python3
sudo update-alternatives --install /usr/bin/python python /usr/bin/python2 100
sudo update-alternatives --install /usr/bin/python python /usr/bin/python3 150
该博客介绍了在Ubuntu系统安装Python3.7的步骤。强调不要卸载原有的Python2.7,按顺序执行相关命令,调整Python3优先级使3.7较高,更改默认值让python指向Python3,安装完成后执行python3可看到Python3.7。
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