python在没有异常的地方引发异常？

Question

我有个问题：

1. 在烧瓶上测试时，没有例外

2. gunicorn+gevent使其联机后，它们在以下代码中引发异常

-

try:
    req_dict = request.args.to_dict()

    req_desc = copy.copy(req_dict)
    temp_card_pwd = str(req_desc['cardpwd'])
    req_desc['cardpwd'] = temp_card_pwd.replace(temp_card_pwd[5:9], "****")

    log.info('接收到一条请求信息(charge_in##) %s' % req_desc)
    request_type = str(req_dict['command'])
    charge_acct = str(req_dict['telephone'])
    card_pwd = str(req_dict['cardpwd'])

    res_dict = req_validate(request_type, card_pwd, charge_acct)
    if res_dict['errcode'] == 0:
        log.info('准备充值(charge_begin##)...%s '% req_desc)
        time_start = time.time()
        acct_charge = True
        charge_res = charge(req_desc, card_pwd, charge_acct)
        res_dict['body'] = charge_res
        log.info('充值结果(charge_end##)：请求：%s, 结果：%s 耗时：%s' % (req_desc, res_dict,
                                                            int((time.time() - time_start)*1000)))
    else:
        log.warning('返回异常请求结果（charge_out##）：请求：%s 结果：%s' % (req_desc, res_dict))
except Exception as e:
    if acct_charge:
        code = 1007
        msg = '充值异常！%s' % e
    else:
        code = 1006
        msg = '传入参数错误! %s' % e
    res_dict = {'errcode': code, 'msg': msg, 'body': None}
    log.warning('返回异常请求结果（charge_exception##）：请求参数异常！请核对后再发！%s' % res_dict)

例外情况是

2017-08-04 06:47:50,441 yidongserver.py[line:49] WARNING: [channel_name:yidongApp] 返回异常请求结果（charge_exception##）：请求参数异常！请核对后再发！{'errcode': 1006, 'msg': '传入参数错误', 'body': None}

2017-08-04 06:47:50,445 yidongserver.py[line:25] INFO: [channel_name:yidongApp] 接收到一条请求信息(charge_in##) {'request_id': 'HF111708041450260032', 'card_id': '17356104229493840', 'telephone': '152***94608', 'cardpwd': '42381****349361850', 'money': '100', 'callbackurl': '', 'command': 'charge', 'channel_id': 'LTAppRY'}

虽然引发了此异常，但此计费请求仍然成功计费，并返回一次

请帮助解决此警告异常！谢谢！你知道吗