版权声明：可自由转载。 https://blog.csdn.net/freeman1975/article/details/84332957
warning: GMP or MPIR library not found; Not building Crypto.PublicKey._fastmath.
msvs2015版本号为14.0，对应环境变量VS140COMNTOOLS。要安装这个VC IDE才行。我只安装了vs2010。记得勾选VC++2015和Python Tools。
VCINSTALLDIR=C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC
set CL=/FI"%VCINSTALLDIR%\\INCLUDE\\stdint.h" %CL%，这个命令一定要输入。
一定要下载: pycrypto2.6.1才行。https://www.dlitz.net/software/pycrypto/
执行：python setup.py install
refer to : https://blog.csdn.net/a624806998/article/details/78596543
http://blog.51cto.com/10616534/1951821