old_contents: import os
  UnrealEnginePath='~/workspace/UnrealEngine/Engine'
  
  UATScript = os.path.join(UnrealEnginePath, 'Build/BatchFiles/RunUAT.sh')
  if not os.path.isfile(UATScript):
      print('Can not find Automation Script of UE4 %s' % UATScript)
      print('Please set UnrealEnginePath correctly first')
  FullPluginFile = os.path.abspath('UnrealCV.uplugin')
  os.system('%s BuildPlugin -plugin=%s' % (UATScript, FullPluginFile))
  
new_contents: import os
  UnrealEnginePath='~/workspace/UnrealEngine/Engine'
  
  UATScript = os.path.join(UnrealEnginePath, 'Build/BatchFiles/RunUAT.sh')
  if not os.path.isfile(UATScript):
      print('Can not find Automation Script of UE4 %s' % UATScript)
      print('Please set UnrealEnginePath correctly first')
  else:
      FullPluginFile = os.path.abspath('UnrealCV.uplugin')
      cmd = '%s BuildPlugin -plugin=%s' % (UATScript, FullPluginFile)
      print(cmd)
      os.system(cmd)
  
subject: Update build script.