Selenium EC.element_to_be_clickable 仍然 returns 陈旧元素错误

Question

我不确定这有什么问题。我使用 EC.element_to_be_clickable() 对吗？我收到错误消息：“selenium.common.exceptions.StaleElementReferenceException: Message: stale element reference: element is not attached to the page document”。我很确定 XPATH 是有效的，甚至尝试过指定相同元素的另一个 XPATH。

我的代码：

driver.get("https://browzine.com/libraries/1374/subjects")
parent_url = "https://browzine.com/libraries/1374/subjects"
wait = WebDriverWait(driver, 10)

subjects_avail = driver.find_elements(By.XPATH, "//span[@class='subjects-list-subject-name']")
subjects = 0
for sub in subjects_avail:
    WebDriverWait(driver, 5).until(EC.element_to_be_clickable(
        (By.XPATH, "//span[@class='subjects-list-subject-name']")))
    ActionChains(driver).move_to_element(sub).click(sub).perform()
    subjects = +1
    driver.get(parent_url)

Answer 1

每次单击 sub 元素时，driver 都会导航到新页面。
然后你用

再次打开主页

driver.get(parent_url)

但是 subjects_avail 列表中的所有 Web 元素都变得陈旧，因为 driver 已经离开了原始主页。
为了使您的代码正常工作，您必须在每次返回主页时再次获取 subjects_avail 列表，然后 select 正确的子标题元素。
像这样：

url = "https://browzine.com/libraries/1374/subjects"
subj_list_xpath = "//span[@class='subjects-list-subject-name']"
driver.get(url)
wait = WebDriverWait(driver, 10)

subjects_avail = driver.find_elements(By.XPATH, subj_list_xpath)

for i in range(len(subjects_avail)):
    WebDriverWait(driver, 5).until(EC.visibility_of_element_located((By.XPATH, subj_list_xpath)))
    subjects_avail = driver.find_elements(By.XPATH, subj_list_xpath)
    ActionChains(driver).move_to_element(subjects_avail[i]).click(subjects_avail[i]).perform()
    driver.get(url)

Selenium EC.element_to_be_clickable 仍然 returns 陈旧元素错误

Selenium EC.element_to_be_clickable still returns stale element error

python

selenium

xpath

selenium-chromedriver

staleelementreferenceexception