修改apt源：

vim /etc/apt/sources.list

然后修改为下面的内容，

金山云：

deb http://apt.ksyun.cn/ubuntu/ xenial main restricted
deb http://apt.ksyun.cn/ubuntu/ xenial-updates main restricted
deb http://apt.ksyun.cn/ubuntu/ xenial universe
deb http://apt.ksyun.cn/ubuntu/ xenial-updates universe
deb http://apt.ksyun.cn/ubuntu/ xenial multiverse
deb http://apt.ksyun.cn/ubuntu/ xenial-updates multiverse
deb http://apt.ksyun.cn/ubuntu/ xenial-backports main restricted universe multiverse
deb http://apt.ksyun.cn/ubuntu xenial-security main restricted
deb http://apt.ksyun.cn/ubuntu xenial-security universe
deb http://apt.ksyun.cn/ubuntu xenial-security multiverse

阿里云：

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

清华源：

deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial main multiverse restricted universe
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-backports main multiverse restricted universe
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-proposed main multiverse restricted universe
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-security main multiverse restricted universe
deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-updates main multiverse restricted universe
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial main multiverse restricted universe
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-backports main multiverse restricted universe
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-proposed main multiverse restricted universe
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-security main multiverse restricted universe
deb-src http://mirrors.tuna.tsinghua.edu.cn/ubuntu/ xenial-updates main multiverse restricted universe

跟新源：

sudo apt-get update

修改PiP源：

阿里云 https://mirrors.aliyun.com/pypi/simple/

中国科技大学 https://pypi.mirrors.ustc.edu.cn/simple/

豆瓣(douban) http://pypi.douban.com/simple/

清华大学 https://pypi.tuna.tsinghua.edu.cn/simple/

中国科学技术大学 http://pypi.mirrors.ustc.edu.cn/simple/

单次修改：

pip install *** -i https://pypi.tuna.tsinghua.edu.cn/simple

永久修改：

vim ~/.pip/pip.conf

输入：

[global]
index-url = http://mirrors.aliyun.com/pypi/simple/ 
[install]
trusted-host = mirrors.aliyun.com

Windows用户则在C:\Users\xx\pip目录下生成pip.ini，

输入：

[global]
index-url = http://mirrors.aliyun.com/pypi/simple/ 
[install]
trusted-host = mirrors.aliyun.com