code: def generate_simhash(self, item):
          
          list = item['p_texts'] + item['links_text']
          list.append(item['title'])
          list.append(item['description'])
          list.append(item['keywords'])
          return Simhash(','.join(list).strip()).hash
docs: Generate simhash based on title, description, keywords, p_texts and links_text.