Linux下安装python的gmpy2库及遇到无法定位软件包的解决办法

gmpy2需要gmp.h &mpfr.h &mpc.h
安装命令：
sudo apt-get install libmpfr-dev libmpc-dev

成功之后再输入安装命令：

pip install gmpy2

若遇到无法定位软件包：

则输入命令：sudo gedit /etc/apt/sources.list

弹出文件，在文件末尾添加：

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

若仍无法安装，可尝试其他kali源：

# 163 源
deb http://mirrors.163.com/debian wheezy main non-free contrib
deb-src http://mirrors.163.com/debian wheezy main non-free contrib
deb http://mirrors.163.com/debian wheezy-proposed-updates main non-free contrib
deb-src http://mirrors.163.com/debian wheezy-proposed-updates main non-free contrib
deb-src http://mirrors.163.com/debian-security wheezy/updates main non-free contrib
deb http://mirrors.163.com/debian-security wheezy/updates main non-free contrib