code: def gen_search_gzh_url(keyword, page=1):
          
          assert isinstance(page, int) and page > 0
  
          qs_dict = OrderedDict()
          qs_dict['type'] = _search_type_gzh
          qs_dict['page'] = page
          qs_dict['ie'] = 'utf8'
          qs_dict['query'] = keyword
  
          return 'http://weixin.sogou.com/weixin?{}'.format(urlencode(qs_dict))
docs: 拼接搜索 公众号 URL
  
          Parameters
          ----------
          keyword : str or unicode
              搜索文字
          page : int, optional
              页数 the default is 1
  
          Returns
          -------
          str
              search_gzh_url