>我有一个问题:我想测试"选择"和"输入".我可以像下面的代码一样写它吗: 原始代码:
12 class Sinaselecttest(unittest.TestCase):
13
14 def setUp(self):
15 binary = FirefoxBinary('/usr/local/firefox/firefox')
16 self.driver = webdriver.Firefox(firefox_binary=binary)
17
18 def test_select_in_sina(self):
19 driver = self.driver
20 driver.get("https://www.sina.com.cn/")
21 try:
22 WebDriverWait(driver,30).until(
23 ec.visibility_of_element_located((By.XPATH,"/html/body/div[9]/div/div[1]/form/div[3]/input"))
24 )
25 finally:
26 driver.quit()
# #测试select功能
27 select=Select(driver.find_element_by_xpath("//*[@id='slt_01']")).select_by_value("微博")
28 element=driver.find_element_by_xpath("/html/body/div[9]/div/div[1]/form/div[3]/input")
29 element.send_keys("杨幂")
30 driver.find_element_by_xpath("/html/body/div[9]/div/div[1]/form/input").click()
31 driver.implicitly_wait(5)
32 def tearDown(self):
33 self.driver.close()
我想测试硒"选择"function.so 我选择新浪网站选择一个选项并在文本区域中输入文本,然后搜索它.但是当我运行此测试时,它有错误:
Traceback (most recent call last):
File "test_sina_select.py", line 32, in tearDown
self.driver.close()
File "/usr/lib/python2.7/site-packages/selenium/webdriver/remote/webdriver.py", line 688, in close
self.execute(Command.CLOSE)
File "/usr/lib/python2.7/site-packages/selenium/webdriver/remote/webdriver.py", line 319, in execute
response = self.command_executor.execute(driver_command, params)
File "/usr/lib/python2.7/site-packages/selenium/webdriver/remote/remote_connection.py", line 376, in execute
return self._request(command_info[0], url, body=data)
File "/usr/lib/python2.7/site-packages/selenium/webdriver/remote/remote_connection.py", line 399, in _request
resp = self._conn.request(method, url, body=body, headers=headers)
File "/usr/lib/python2.7/site-packages/urllib3/request.py", line 68, in request
**urlopen_kw)
File "/usr/lib/python2.7/site-packages/urllib3/request.py", line 81, in request_encode_url
return self.urlopen(method, url, **urlopen_kw)
File "/usr/lib/python2.7/site-packages/urllib3/poolmanager.py", line 247, in urlopen
response = conn.urlopen(method, u.request_uri, **kw)
File "/usr/lib/python2.7/site-packages/urllib3/connectionpool.py", line 617, in urlopen
release_conn=release_conn, **response_kw)
File "/usr/lib/python2.7/site-packages/urllib3/connectionpool.py", line 617, in urlopen
release_conn=release_conn, **response_kw)
File "/usr/lib/python2.7/site-packages/urllib3/connectionpool.py", line 617, in urlopen
release_conn=release_conn, **response_kw)
File "/usr/lib/python2.7/site-packages/urllib3/connectionpool.py", line 597, in urlopen
_stacktrace=sys.exc_info()[2])
File "/usr/lib/python2.7/site-packages/urllib3/util/retry.py", line 271, in increment
raise MaxRetryError(_pool, url, error or ResponseError(cause))
MaxRetryError: HTTPConnectionPool(host='127.0.0.1', port=51379): Max retries exceeded with url: /session/2e64d2a1-3c7f-4221-96fe-9d0b1c102195/window (Caused by ProtocolError('Connection aborted.', error(111, 'Connection refused')))
----------------------------------------------------------------------
Ran 1 test in 72.106s
谁能告诉我为什么?谢谢
此错误消息...
MaxRetryError: HTTPConnectionPool(host='127.0.0.1', port=51379): Max retries exceeded with url: /session/2e64d2a1-3c7f-4221-96fe-9d0b1c102195/window (Caused by ProtocolError('Connection aborted.', error(111, 'Connection refused')))
。意味着对self.driver.close()
方法的调用失败,引发最大重试错误。
几件事:
首先,根据讨论,最大重试次数超过异常令人困惑,回溯有些误导。为了方便用户,请求包装异常。原始异常是显示的消息的一部分。
请求从不重试(它为 urllib3 的
HTTPConnectionPool
设置了retries=0
(,因此如果没有MaxRetryError和HTTPConnectionPool关键字,错误会更加规范。因此,理想的回溯应该是:ConnectionError(<class 'socket.error'>: [Errno 1111] Connection refused)
但再次@sigmavirus24在他的评论中提到...包装这些异常可以带来出色的 API,但调试体验很差......
向前推进的计划是尽可能向下遍历到最低级别的异常,并改用它。
最后,通过重新措辞一些与实际连接拒绝错误无关的异常来解决此问题。
解决方案
甚至在调用tearDown(self)
中的self.driver.close()
之前,test_select_in_sina(self)
中的try{}块包括finally {},您在其中调用了用于调用/shutdown 端点的driver.quit()
,随后 Web 驱动程序和客户端实例被完全销毁,关闭了所有页面/选项卡/窗口。因此不再存在连接。
您可以在以下位置找到一些相关的详细讨论:
- PhantomJS Web 驱动程序保留在内存中
- 硒 :如何在不调用的情况下停止影响PC内存的壁虎驱动程序进程 driver.quit((?
在这种情况下,当您调用self.driver.close()
python客户端无法找到任何活动连接来启动clousure。因此,您会看到错误。
因此,一个简单的解决方案是删除线路driver.quit()
即删除finally
块。
>吨; 博士根据硒 3.14.1的发行说明:
* Fix ability to set timeout for urllib3 (#6286)
合并是:修复urllib3无法设置超时!
<小时 />结论
升级到Selenium 3.14.1后,您将能够设置超时并查看规范回溯,并能够采取所需的操作。
<小时 />参考资料
几个相关的参考资料:
- 将max_retries添加为参数
- 删除了捆绑的字谜游戏和 urllib3。
- 逐字提交的第三方库
只是遇到了同样的问题。解决方案是使用脚本递归更改文件夹的所有者。就我而言,该文件夹具有所有者:组root:root
我需要将其更改为ubuntu:ubuntu
。
解决方案:sudo chown -R ubuntu:ubuntu /path-to-your-folder
使用 Try and catch block 查找异常
try:
r = requests.get(url)
except requests.exceptions.Timeout:
#Message
except requests.exceptions.TooManyRedirects:
#Message
except requests.exceptions.RequestException as e:
#Message
raise SystemExit(e)