def webwxcreatechatroom(self, uid_arr):
        """
        @brief      create a chat group
        @param      uid_arr  [String]
        @return     Bool: whether operation succeed
        """
        url = self.wx_conf['API_webwxcreatechatroom'] + '?r=%s' % int(time.time())
        params = {
            'BaseRequest': self.base_request,
            'Topic': '',
            'MemberCount': len(uid_arr),
            'MemberList': [{'UserName': uid} for uid in uid_arr],
        }
        dic = post(url, params)
        return dic['BaseResponse']['Ret'] == 0

        @brief      create a chat group
        @param      uid_arr  [String]
        @return     Bool: whether operation succeed
        
wxbot_project_py2.7/wechat/wechat_apis.py