old_contents: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  """Splinter would be proud."""
  
  
  TEENAGE_MUTANT_NINJAS = ('Michaelangelo. Leonardo. Rafael. Donatello. Heroes '
                           'in a half shell.')
  
new_contents: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  """Splinter would be proud."""
  
  
  TEENAGE_MUTANT_NINJAS = ('Michaelangelo. Leonardo. Rafael. Donatello. Heroes '
                           'in a half shell.')
  TURTLE_POWER = TEENAGE_MUTANT_NINJAS.split('. ')
  
subject: Split string