代码：

# -*- coding: utf-8 -*-

import unittest
from time import sleep, strftime
import os

import HTMLTestRunner
from appium import webdriver
from ddt import ddt, data, unpack




@ddt
class ddtTest(unittest.TestCase):
def setUp(self):
pass

    def tearDown(self):
pass

@data([1],[2])
    @unpack
def test_LoginByAccount(self, city):

print(city)


if __name__ == '__main__':

# 创建测试报告存放目录
try:
os.mkdir('..\Report')
    except Exception as e:
pass

#测试套件实例化
suite = unittest.TestLoader().loadTestsFromTestCase(ddtTest)
    runner = HTMLTestRunner.HTMLTestRunner(title="ddt测试报告", description="测试情况", stream=open(
        "..\Report\登录测试报告_%s.html" % strftime("%Y%m%d_%H%M%S"), "wb"), verbosity=2,retry=0, save_last_try=True)
    runner.run(suite)

测试报告：

问题：

使用ddt数据驱动，会使得测试例子名称，出现未知错误，求如何解决，百度与谷歌关于此类的答案仍未给出，望广大博友伸出援手，不胜感激