如何解决MaxRetryError:HTTPConnectionPool:超过最大重试次数由ProtocolError“连接中止”,错误111,“连接被拒绝”引起
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')))
…表示该 方法无法引发 。
有两件事:
- 首先,根据讨论,max-retries-exceeded异常令人困惑, 回溯 有些误导。请求包装异常是为了方便用户。原始异常是显示的消息的一部分。
-
请求永不重试(它
retries=0
为urllib3 设置了HTTPConnectionPool
),因此如果没有 和 关键字,则错误将更为规范。因此理想的 回溯 应该是:ConnectionError(<class 'socket.error'>: [Errno 1111] Connection refused)
-
但是@ sigmavirus24在他的评论中再次提到 …包装这些异常会产生出色的API,但会带来不良的调试体验…
-
向前推进的计划是 尽可能向下遍历最低级别的异常,并使用它。
- 最后,通过改写一些与实际连接被拒绝错误无关的异常来解决此问题。
解
由于按照 发行说明 的 :
* Fix ability to set timeout for urllib3 (#6286)
该 合并 是:维修urllib3不能设置超时!
结论
升级到 您将可以设置超时并查看规范的 回溯 ,并且可以采取必要的措施。
参考资料
几个相关的事件引用:
解决方法
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
33
34
我想测试Selenium的“选择”功能。所以我选择sina网站选择一个选项,然后在textarea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,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,**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 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,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