old_contents: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  
  from pyshorteners.shorteners import Shortener
  from quokka.utils import lazy_str_setting
  
  
  class ShorterURL(object):
  
      _shortener = None
  
      @property
      def shortener(self):
          if not self._shortener:
              shortener_name = lazy_str_setting('SHORTENER_DEFAULT_API')
              self._shortener = Shortener(shortener_name)
          return self._shortener
  
      def short(self, url):
          print 'shorting url'
          return self.shortener.short(url)
  
new_contents: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  
  from pyshorteners.shorteners import Shortener
  from quokka.utils import lazy_str_setting
  
  
  class ShorterURL(object):
  
      _shortener = None
  
      @property
      def shortener(self):
          if not self._shortener:
              shortener_name = lazy_str_setting('SHORTENER_DEFAULT_API')
              self._shortener = Shortener(shortener_name)
          return self._shortener
  
      def short(self, url):
          return self.shortener.short(url)
  
subject: remove print