Python Selenium:WebDriverWait,尽管加载仍未找到元素

Python Selenium: WebDriverWait, element not found despite loading

我正在尝试加载具有动态 HTML 的 URL。 selenium webdriver 加载 URL 正常,但它似乎在 HTML 完全呈现之前搜索元素。我试过 WebDriverWait,但似乎不起作用。

有趣的是,selenium找不到元素后,我可以手动使用Chrome开发者工具成功找到元素。

有什么想法吗?

from selenium import webdriver
from selenium.webdriver.support.ui import WebDriverWait

chromepath = "C:\Program Files (x86)\Google\Chrome\Application\chromedriver.exe"
url        = "https://www.msci.com/end-of-day-data-search"
delay      = 15 #seconds

br = webdriver.Chrome(chromepath)
br.get(url)

try:
    br.find_element_by_class_name("accept-btn").click()
    print("accepted terms and conditions")
finally:
    try:
        labelxpath   = "//*[@id='form-content']/table[1]/tbody/tr[2]/td/span"
        labelElement = WebDriverWait(br, delay).until(lambda br: br.find_element_by_xpath(labelxpath))
        print(labelElement)
    except:
        print("could not find label")
        br.close()

脚本结果: "accepted terms and conditions" "could not find label"

其实,不仅仅是等待页面加载。

您要查找的元素在 iframe 中。在搜索元素之前,您需要切换到它的上下文

driver.switch_to.frame(0)  # 0 here is an index - using 0 since there is only one iframe