Ubuntu 18.04用sudo python3 get-pip.py安装pip3失败

sudo python3 get-pip.py

出现错误为：ModuleNotFoundError: No module named 'distutils.util'

sudo apt-get install python3-distutils

出现错误为：E: Package 'python3-distutils' has no installation candidate

如果安装py包出现类似上述错误，请确认/etc/apt/sources.list 内容是否正确。查看Ubuntu版本的代号是否与当前Ubuntu版本匹配。

查看Ubuntu版本代号的命令为：

lsb_release -sc

我用的是Ubuntu18.04，sources.list如下：

deb http://mirrors.aliyun.com/ubuntu bionic main multiverse restricted universe
deb http://mirrors.aliyun.com/ubuntu bionic-updates main multiverse restricted universe
deb http://mirrors.aliyun.com/ubuntu bionic-security main multiverse restricted universe
deb http://mirrors.aliyun.com/ubuntu bionic-proposed main multiverse restricted universe
deb http://mirrors.aliyun.com/ubuntu bionic-backports main multiverse restricted universe

推荐一篇详解Ubuntu的sources.list文件的博客。