old_contents: import logging
  
  __version__ = "0.20.0rc3"
  version = tuple(__version__.split('.'))
  
  logging.getLogger(__name__).addHandler(logging.NullHandler())
  
new_contents: import logging
  
  __version__ = "0.20.0rc4"
  version = tuple(__version__.split('.'))
  
  logging.getLogger(__name__).addHandler(logging.NullHandler())
  
subject: Bump version 0.20.0rc3 --> 0.20.0rc4