old_contents: __author__ = 'mqingyn'
  __version__ = '1.0.2'
  
  version = tuple(map(int, __version__.split('.')))
  
new_contents: __author__ = 'mqingyn'
  __version__ = '1.0.3'
  
  version = tuple(map(int, __version__.split('.')))
  
subject: add import