date -d @$(date -u +%s)
月份:2019年5月
error: Unable to find vcvarsall.bat
环境:Windows 10, python 3.5
问题:pip install numpy
出现错误提示error: Unable to find vcvarsall.bat
解决:安装vs 2015 community,注意一定要勾选 Programming Languages -> Visual C++ -> Common Tools for Visual C++ 2015