code: def process_selectors(self, index=0, flags=0):
          
  
          return self.parse_selectors(self.selector_iter(self.pattern), index, flags)
docs: Process selectors.
  
          We do our own selectors as BeautifulSoup4 has some annoying quirks,
          and we don't really need to do nth selectors or siblings or
          descendants etc.