OSError:[WinError 6]通过Python使用Selenium时出现错误的描述符错误

Question

你能帮我写代码吗？我想解析电话号码，但我需要通过点击激活按钮。但是这个按钮有标签，这对我来说是个问题。我怎样才能修好它

from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.common.action_chains import ActionChains
#from selenium.webdriver.common.touch_actions import TouchActions
#import org.openqa.selenium.interactions.Actions


#TouchActions.tap
def main():
    driver = webdriver.Chrome()
    remote = driver.get("https://www.olx.ua/uk/obyavlenie/68200jk71a-torpedo-pod-airbag-infiniti-g-07-14-infiniti-IDGRpUS.html#d97e6d976d;promoted")
    bt_elem = driver.find_elements_by_id("postNewAdLink")
    #print(bt_elem[0])
    #driver.find_elements_by_class_name("contact-button").click()
    #ActionChains(driver).move_to_element(bt_elem).perform().click()

    #bt_elem.get(0).click()
    #TouchActions.tap(bt_elem)

main()

错误：

Traceback (most recent call last):
  File "C:\Users\radus\AppData\Local\Programs\Python\Python38\lib\subprocess.py", line 945, in __del__
    self._internal_poll(_deadstate=_maxsize)
  File "C:\Users\radus\AppData\Local\Programs\Python\Python38\lib\subprocess.py", line 1344, in _internal_poll
    if _WaitForSingleObject(self._handle, 0) == _WAIT_OBJECT_0:
OSError: [WinError 6] Wrong descriptor

Answer 1

此错误消息

  File "C:\Users\radus\AppData\Local\Programs\Python\Python38\lib\subprocess.py", line 945, in __del__
    self._internal_poll(_deadstate=_maxsize)
  File "C:\Users\radus\AppData\Local\Programs\Python\Python38\lib\subprocess.py", line 1344, in _internal_poll
    if _WaitForSingleObject(self._handle, 0) == _WAIT_OBJECT_0:
OSError: [WinError 6] Wrong descriptor

…表示subprocess.Popen()命令出错

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根据Selenium 3.5.0-GeckoDriver 0.18.0-Python 3.6.1 : "OSError: [WinError 6] The handle is invalid" is observed while close() is called through Python PyDev (Eclipse) unittest module中的讨论，即使在通过Python的unittest模块调用self.driver.close()时也观察到了这个问题

This is because there is no stdin defined in the `service.py` file for the `subprocess.Popen()` command. Underwater the subprocess tries to create a handle which also looks for stdin under Windows this gets a bit tricky when using `Bash` or `cx_Freeze`. So, `stdin` was defined as well, and the crash is gone. Optionally you can also use:

FNULL = open(os.devnull, 'r')
subprocess.Popen(.... ,stdin=FNULL)

---

解决方案

该解决方案是从Also define stdin or it will crash on Python + cx_Freeze: WindowsErro…拉取请求合并而来的，在Selenium v3.8.1中可用

理想情况下，您需要确保：

• 硒被升级到当前水平Version 3.141.59
• ChromeDriver更新为当前ChromeDriver v80.0级别
• Chrome更新为当前的Chrome 80.0版本。（根据ChromeDriver v80.0 release notes）
• 通过IDE清理您的项目工作区，并仅使用所需的依赖项重建项目
• 始终在tearDown(){}方法中调用driver.quit()以关闭&；优雅地销毁WebDriver和Web客户端实例

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tl；博士

subprocess.Popen._cleanup() "The handle is invalid" error when some old process is gone

Answer 2

你的代码看起来很好。。。您的环境看起来可疑。如果我冒昧猜测一下（因为是子流程模块在抱怨），可能Selenium在您的路径中找不到chrome.exe。Chrome是否在此异常之前打开