\include\pyconfig.h(59): fatal error c1083: cannot open include file: 'io.h': no such file or directory error: command \microsoft visual studio\ buildtools\vc\\tools\msvc\14.38.33130\\bin\\hostx86\x64\cl.exe' failed with exit code 2

1. Just Download the Build Tools from Microsoft. 

2. Add the C++ and the 2 Optional Tools. 

3. Re-Open the Command Prompt and use PIP to install. Enjoy !