code: def _get_html(self, url):
          
          self.log.info(u"/GET {}".format(url))
          r = requests.get(url)
          if hasattr(r, 'from_cache'):
              if r.from_cache:
                  self.log.info("(from cache)")
  
          if r.status_code != 200:
              throw_request_err(r)
  
          return r.content
docs: Get html from url