code: def VCTools(self):
          
          si = self.si
          tools = [os.path.join(si.VCInstallDir, 'VCPackages')]
  
          forcex86 = True if self.vc_ver <= 10.0 else False
          arch_subdir = self.pi.cross_dir(forcex86)
          if arch_subdir:
              tools += [os.path.join(si.VCInstallDir, 'Bin%s' % arch_subdir)]
  
          if self.vc_ver == 14.0:
              path = 'Bin%s' % self.pi.current_dir(hidex86=True)
              tools += [os.path.join(si.VCInstallDir, path)]
  
          elif self.vc_ver >= 15.0:
              host_dir = (r'bin\HostX86%s' if self.pi.current_is_x86() else
                          r'bin\HostX64%s')
              tools += [os.path.join(
                  si.VCInstallDir, host_dir % self.pi.target_dir(x64=True))]
  
              if self.pi.current_cpu != self.pi.target_cpu:
                  tools += [os.path.join(
                      si.VCInstallDir, host_dir % self.pi.current_dir(x64=True))]
  
          else:
              tools += [os.path.join(si.VCInstallDir, 'Bin')]
  
          return tools
docs: Microsoft Visual C++ Tools