我正在尝试编写脚本来处理具有多个元素的网页。单击此元素将进入一个新窗口。但是我的脚本在识别元素方面存在问题。我需要帮助来定位元素并处理多个窗口

我尝试使用Chrome找到Xpath,但在Internet Explorer中却不一样。我也尝试过使用CSS选择器,但它不起作用。说这是无效的。

函数test_google_search_page的代码:
    def test_google_search_page(自己):
        driver = self.driver
        driver.get(“ http://xxxx.com”)
        str1 = driver.title
        打印(str1)

    #get the window handles using window_handles
    window_before=driver.window_handles[0]
    print(window_before)

    #driver.find_element_by_xpath("//*                   [@id='2ccb50dfc61122820032728dcea648fe']/div/div")
    driver.find_element_by_css_selector("#\32  ccb50dfc61122820032728dcea648fe > div > div")
    window_after=driver.window_handles[1]

    driver.switch_to.window(window_after)
    str2=driver.title
    print(str2)
    print(window_after)

    self.assertNotEqual(str1,str2)
    print('This window has a different title')
    driver.switch_to.window(window_before)

    self.assertEqual(str1,driver.title)
    print('Returned to parent window. Title now match')



ERROR: test_google_search_page (__main__.GoogleOrgSearch)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "C:\Users\PSWN672P\AppData\Local\Programs\Python\Python37\Python programs\SNOW2.py", line 21, in test_google_search_page
    driver.find_element_by_css_selector("#\32 ccb50dfc61122820032728dcea648fe > div > div")
  File "C:\Users\PSWN672P\AppData\Local\Programs\Python\Python37\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 598, in find_element_by_css_selector
    return self.find_element(by=By.CSS_SELECTOR, value=css_selector)
  File "C:\Users\PSWN672P\AppData\Local\Programs\Python\Python37\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 978, in find_element
    'value': value})['value']
  File "C:\Users\PSWN672P\AppData\Local\Programs\Python\Python37\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 321, in execute
    self.error_handler.check_response(response)
  File "C:\Users\PSWN672P\AppData\Local\Programs\Python\Python37\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 242, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.InvalidSelectorException: Message: An invalid or illegal selector was specified

最佳答案

您的#\32 ccb50dfc61122820032728dcea648fe > div > div CSS选择器确实无效。请参考the CSS selector grammar specification

您是说:#2ccb50dfc61122820032728dcea648fe > div > div?即使无法看到您要查找的页面和元素的HTML源,也无法为您提供特定的正确选择器。

虽然2ccb50dfc61122820032728dcea648fe id本身看起来是自动生成的,但您可能应该寻找替代定位符才能找到所需的元素,本主题可能有助于您了解如何使用硒来定位元素:


What makes a good selenium locator?

关于python - selenium.common.exceptions.InvalidSelectorException:消息:指定了无效或非法的选择器,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/54338087/

10-16 05:17