error: Microsoft Visual C++ 9.0 is required (Unable to find vcvarsall.bat)
原因：需要机器装有vs2008
解决方案：安装安装一个Micorsoft Visual C++ Compiler for Python 2.7的包
下载地址：https://www.microsoft.com/en-us/download/details.aspx?id=44266
error: Microsoft Visual C++ 9.0 is required (Unable to find vcvarsall.bat)
原因：需要机器装有vs2008
解决方案：安装安装一个Micorsoft Visual C++ Compiler for Python 2.7的包
下载地址：https://www.microsoft.com/en-us/download/details.aspx?id=44266