code: def say_bitly_short_url(self, message, long_url=None):
          
  
          try:
              import bitly_api   # pip install bitly_api
          except ImportError:
              raise ImportError(
                  "Can't load BitlyPlugin, since the bitly_api python module isn't installed.\n"
                  "To install it, run:\n"
                  "  pip install bitly_api"
              )
  
          # use oauth2 endpoints
          c = bitly_api.Connection(access_token=settings.BITLY_ACCESS_TOKEN)
          response = c.shorten(uri=long_url)
          short_url = response['url']
          self.say("Shorten URL: %s" % short_url, message=message)
docs: bitly ___: Shorten long_url using bitly service.