code: def namer(cls, imageUrl, pageUrl):
          
          parts, year, month, stripname = pageUrl.rsplit('/', 3)
          stripname = stripname.rsplit('.', 1)[0]
          parts, imagename = imageUrl.rsplit('/', 1)
          return '%s-%s-%s-%s' % (year, month, stripname, imagename)
docs: Use page URL to construct meaningful image name.