code: def _parse_src_js_var(self, variable):
          
  
          src_url = 'http://115.com'
          r = self.http.get(src_url)
          soup = BeautifulSoup(r.content)
          scripts = [script.text for script in soup.find_all('script')]
          text = '\n'.join(scripts)
          pattern = "%s\s*=\s*(.*);" % (variable.upper())
          m = re.search(pattern, text)
          if not m:
              msg = 'Cannot parse source JavaScript for %s.' % variable
              raise APIError(msg)
          return json.loads(m.group(1).strip())
docs: Parse JavaScript variables in the source page