脚本如下：

# -*- coding:UTF-8 -*-
from appium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from time import sleep
import unittest
import time
import HTMLTestRunner

class Dttest(unittest.TestCase):
      @classmethod
      def setUpClass():
          desired_caps={}
          desired_caps['platformName']='Android'
          desired_caps['platformVersion']='4.4.2'
          desired_caps['deviceName']='HUAWEI P7-L00'
          desired_caps['appPackage']='com.tuniu.app.ui'
          desired_caps['appActivity']='.homepage.LaunchActivity'
          driver=webdriver.Remote('http://localhost:4723/wd/hub',desired_caps)

      def tearDown():
          driver.close_app()
          driver.quit()

      def test_click1():
          driver.find_element_by_id('com.tuniu.app.ui:id/iv_style3_card_1').click()

      def test_click2():
          driver.find_element_by_id('com.tuniu.hotel:id/tv_query').click()

      def test_click3():
          driver.find_element_by_id('com.tuniu.hotel:id/iv_product_small_image').click()


if __name__ == '__main__':
    suite = unittest.TestSuite()
    suite.addTest(Dttest('test_click1'))

    suite.addTest(Dttest('test_click2'))

    suite.addTest(Dttest('test_click3'))

    timestr = time.strftime('%Y%m%d%H%M%S',time.localtime(time.time()))
    filename = 'D:\\report\\result_'+timestr+'.html'
    fp = open(filename,'wb')
    runner = HTMLTestRunner.HTMLTestRunner(
        stream=fp,
        title='result',
        description='report'
    )
    runner.run(suite)
    fp.close()

运行结果报错：

Traceback (most recent call last):
  File "D:\appium\workspace\new test\Simple-test.py", line 72, in <module>
    runner.run(suite)
  File "C:\Python27\lib\HTMLTestRunner.py", line 628, in run
    test(result)
  File "C:\Python27\lib\unittest\suite.py", line 65, in __call__
    return self.run(*args, **kwds)
  File "C:\Python27\lib\unittest\suite.py", line 95, in run
    self._handleClassSetUp(test, result)
  File "C:\Python27\lib\unittest\suite.py", line 146, in _handleClassSetUp
    self._addClassOrModuleLevelException(result, e, errorName)
  File "C:\Python27\lib\unittest\suite.py", line 187, in _addClassOrModuleLevelException
    result.addError(error, sys.exc_info())
  File "C:\Python27\lib\HTMLTestRunner.py", line 584, in addError
    output = self.complete_output()
  File "C:\Python27\lib\HTMLTestRunner.py", line 558, in complete_output
    return self.outputBuffer.getvalue()
AttributeError: '_TestResult' object has no attribute 'outputBuffer'

我用的 HTMLTestRunner 是在这里下的： http://tungwaiyip.info/software/HTMLTestRunner.html

python 版本 2.7

求大神解答，急！