@echo off SET VS_VCVARS=%VS140COMNTOOLS%..\..\VC\vcvarsall.bat IF EXIST "%VS_VCVARS%" ( IF NOT DEFINED Platform ( IF EXIST "%ProgramFiles(x86)%" ( call "%VS_VCVARS%" x64 ) ELSE ( ECHO 32-bit Windows is currently unsupported. EXIT /B ) ) ) ELSE ( ECHO Visual Studio 2015 is not installed. ECHO Download and install Visual Studio 2015 from https://www.visualstudio.com/ EXIT /B ) python mach %*