old_contents: from __future__ import print_function
  
  version = '0.2.7'
  
  if __name__ == '__main__':
      print(version)
  
new_contents: from __future__ import print_function
  
  version = '0.2.8'
  
  if __name__ == '__main__':
      print(version)
  
subject: Bump version number.