gmpy2需要gmp.h &mpfr.h &mpc.h
安裝命令： sudo apt-get install libmpfr-dev libmpc-dev
成功之后再輸入安裝命令：
pip install gmpy2
若遇到無法定位軟件包：
則輸入命令：sudo gedit /etc/apt/sources.list
彈出文件，在文件末尾添加：
deb http://mirrors.ustc.edu.cn/kali kali-rolling main non-free contrib
若仍無法安裝，可嘗試其他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
然后 sudo apt-get update 即可
