selenium.common.exceptions.WebDriverException:消息:未知错误:无法通过Selenium使用ChromeDriver发现打开的页面

问题描述 投票:0回答:1

enter image description here我是硒的新手,只是想学习。尝试通过ChromeDriver打开Chrome浏览器时出现以下错误:

Traceback (most recent call last):
  File "selenium_practise1_chrome.py", line 5, in <module>
    driver = webdriver.Chrome()
  File "C:\Users\kulokesh\AppData\Local\Programs\Python\Python36\lib\site-packages\selenium\webdriver\chrome\webdriver.py", line 75, in __init__
    desired_capabilities=desired_capabilities)
  File "C:\Users\kulokesh\AppData\Local\Programs\Python\Python36\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 156, in __init__
    self.start_session(capabilities, browser_profile)
  File "C:\Users\kulokesh\AppData\Local\Programs\Python\Python36\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 251, in start_session
    response = self.execute(Command.NEW_SESSION, parameters)
  File "C:\Users\kulokesh\AppData\Local\Programs\Python\Python36\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 320, in execute
    self.error_handler.check_response(response)
  File "C:\Users\kulokesh\AppData\Local\Programs\Python\Python36\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 242, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.WebDriverException: Message: unknown error: unable to discover open pages
  (Driver info: chromedriver=2.40.565498 (ea082db3280dd6843ebfb08a625e3eb905c4f5ab),platform=a lotows NT 6.1.7601 SP1 x86_64)

尝试了很多谷歌搜索,但没有任何帮助。以下是我的代码:

from selenium import webdriver
from selenium.webdriver.common.desired_capabilities import DesiredCapabilities
from selenium.webdriver.common.keys import Keys

driver = webdriver.Chrome()
driver.get('http://www.python.org')
print(driver.title)

这不是一个需要处理的代码,但我很困惑我在这里缺少什么。另外,请提供一些很好的在线资源来学习Python Selenium。我打开的Chrome看起来如下:

python-3.x selenium selenium-webdriver webdriver selenium-chromedriver
1个回答
1
投票

此错误消息...

selenium.common.exceptions.WebDriverException: Message: unknown error: unable to discover open pages
  (Driver info: chromedriver=2.40.565498 (ea082db3280dd6843ebfb08a625e3eb905c4f5ab),platform=a lotows NT 6.1.7601 SP1 x86_64)

...暗示ChromeDriver无法启动/生成新的WebBrowser,即Chrome浏览器会话。

通过ChromeOptions()将参数--no-sandbox添加到现有代码中,如下所示:

from selenium import webdriver
from selenium.webdriver.chrome.options import Options

options = Options()
options.add_argument('--no-sandbox') # Bypass OS security model
driver = webdriver.Chrome(chrome_options=options, executable_path=r'C:\path\to\chromedriver.exe')
driver.get('http://www.python.org')
print(driver.title)
driver.quit()

其他考虑因素

  • 将Selenium升级到当前水平Version 3.14.0
  • 将ChromeDriver升级到当前的ChromeDriver v2.41级别。
  • 将Chrome版本保持在Chrome v66-68级别之间。 (as per ChromeDriver v2.41 release notes
  • 通过IDE清理项目工作区,并仅使用所需的依赖项重建项目。
  • 执行你的@Test
  • 始终在driver.quit()方法中调用tearDown(){}以正常关闭和销毁WebDriver和Web Client实例。
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