Kali源：

修改vi /etc/apt/sources.list

#中科大
deb http://mirrors.ustc.edu.cn/kali kali-rolling main non-free contrib
deb-src http://mirrors.ustc.edu.cn/kali kali-rolling main non-free contrib

#阿里云
#deb http://mirrors.aliyun.com/kali kali-rolling main non-free contrib
#deb-src http://mirrors.aliyun.com/kali kali-rolling main non-free contrib

#清华大学
#deb http://mirrors.tuna.tsinghua.edu.cn/kali kali-rolling main contrib non-free
#deb-src https://mirrors.tuna.tsinghua.edu.cn/kali kali-rolling main contrib non-free

#浙大
#deb http://mirrors.zju.edu.cn/kali kali-rolling main contrib non-free
#deb-src http://mirrors.zju.edu.cn/kali kali-rolling main contrib non-free

#东软大学
#deb http://mirrors.neusoft.edu.cn/kali kali-rolling/main non-free contrib
#deb-src http://mirrors.neusoft.edu.cn/kali kali-rolling/main non-free contrib

#官方源
#deb http://http.kali.org/kali kali-rolling main non-free contrib
#deb-src http://http.kali.org/kali kali-rolling main non-free contrib

#重庆大学
#deb http://http.kali.org/kali kali-rolling main non-free contrib
#deb-src http://http.kali.org/kali kali-rolling main non-free contrib

Pip修改源方法：

临时使用：
可以在使用pip的时候在后面加上-i参数，指定pip源
eg: pip install scrapy -i https://pypi.tuna.tsinghua.edu.cn/simple

永久修改：
Linux:
修改 /root/.pip/pip.conf (没有就创建一个)， 内容如下：

[global]
index-url = https://pypi.tuna.tsinghua.edu.cn/simple