old_contents: __version__ = (0, 1)
  def get_version():
      return '.'.join(map(str, __version__))
  
  
new_contents: __version__ = (0, 2, 'dev1')
  def get_version():
      return '.'.join(map(str, __version__))
  
  
subject: Bump version do 0.2.dev1.