anchor.diff:      pip install -r %work_dir%\python\requirements.txt --user
       if !ERRORLEVEL! NEQ 0 (
           echo pip install requirements.txt failed!
  -        exit /b 7
  +        exit /b 5
       )
   )
   
  
positive.code: pip install -r %work_dir%\python\unittest_py\requirements.txt --user
  if %ERRORLEVEL% NEQ 0 (
      echo pip install unittest requirements.txt failed!
      exit /b 7
  )
  
  for /F %%# in ('wmic os get localdatetime^|findstr 20') do set start=%%#
  
negative.code:     pip install ninja
      if %errorlevel% NEQ 0 (
          echo pip install ninja failed!
          exit /b 5
      )
  )
  
  