pip install pycrypto 报错 error: command ‘C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\

1、pip install pycrypto报错如下 error: command 'C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\BIN\x86_amd64\cl.exe' failed with exit code 2

2、搞了半天，又是下载安装 Microsoft Visual Studio 14.0 又是安装 Visual C++ Build Tools 。还是没搞定

3、谷歌一圈，百度一圈最后找到个可以解决的

 set CL=/FI"C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\stdint.h"

pip install pycrypto

参考：https://blog.csdn.net/lm_is_dc/article/details/109359600