一、 更换系统软件源
1、备份：
sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak
2、修改：
sudo gedit /etc/apt/sources.list
# 阿里云源 deb http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ focal main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ focal-security main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ focal-updates main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ focal-backports main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ focal-proposed main restricted universe multiverse # 清华大学源 deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal main restricted universe multiverse deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal main restricted universe multiverse deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-security main restricted universe multiverse deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-security main restricted universe multiverse deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-updates main restricted universe multiverse deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-updates main restricted universe multiverse deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-backports main restricted universe multiverse deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-backports main restricted universe multiverse deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-proposed main restricted universe multiverse deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ focal-proposed main restricted universe multiverse
3、生效：
sudo apt-get update sudo apt-get upgrade
二、ubuntu更改pip源
1、家目录～下创建.pip文件夹
mkdir ~/.pip
2、创建pip.conf文件
sudo gedit ~/.pip/pip.conf
3、将以下内容复制进pip.conf中
[global]
index-url = https://pypi.tuna.tsinghua.edu.cn/simple
index-index-url = https://mirrors.aliyun.com/pypi/simple/
[install]
trusted-host =
pypi.tuna.tsinghua.edu.cn
mirrors.aliyun.com
4、完成。
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版权声明：本文为CSDN博主「DongHappyyy」的原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接及本声明。
原文链接：https://blog.csdn.net/weixin_39715012/article/details/120635192