如何使用Selenium通过Python单击联盟列表中的每个项目时防止StaleElementReferenceException

Question

在本网站上运营：https://www.livetulokset.com/

my_leagues = browser.find_element_by_id('my-leagues-list') # single element
leagues = my_leagues.find_elements_by_tag_name('li') # list of elements
for i in leagues:
    i.click()   # Click first league
    sleep(1)    # sleep second to be able to see the click in monitor
    browser.find_element_by_css_selector('a.menuTop__item:nth-child(1) > div:nth-child(2)').click() # click football icon

代码从列表中单击第一个联盟，然后单击足球图标以返回主页面。当尝试从列表中单击第二个联盟时，由于页面刷新而发生StaleElementReferenceException。怎么可以防止这种情况？

编辑：

我真的需要解决方案，以避免在for循环期间丢失web元素。这个足球网站只是供你们测试我的问题。

Answer 1

为什么不抓住联赛的链接，然后get他们。如果它是links[1:]的当前链接，您可以跳过第一个链接

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
url = 'https://www.livetulokset.com/'
driver = webdriver.Chrome()
driver.get(url)
links = [link.get_attribute('href') for link in WebDriverWait(driver,10).until(EC.presence_of_all_elements_located((By.CSS_SELECTOR, "#my-leagues-list a")))]
print(links)
for item in links:
    driver.get(link)
    # do something

Answer 2

要从联赛列表中浏览和查看每个联赛，您可以打开调整TAB中的每个联赛并切换到选项卡以执行必要的操作，最后关闭TAB并切换回主窗口，您可以使用以下解决方案：

• 代码块：

  from selenium import webdriver
  from selenium.webdriver.common.by import By
  from selenium.webdriver.support.ui import WebDriverWait
  from selenium.webdriver.support import expected_conditions as EC
  import time
  
  options = webdriver.ChromeOptions()
  options.add_argument("start-maximized")
  options.add_argument("--disable-extensions")
  options.add_argument('disable-infobars') 
  driver = webdriver.Chrome(chrome_options=options, executable_path=r'C:\Utility\BrowserDrivers\chromedriver.exe')
  driver.get("https://www.livetulokset.com/")
  handel_initially  = driver.current_window_handle
  my_hrefs = [my_leagues.get_attribute("href") for my_leagues in WebDriverWait(driver,10).until(EC.visibility_of_all_elements_located((By.XPATH, "//ul[@id='my-leagues-list']/li//a")))]
  for href in my_hrefs:
      driver.execute_script("window.open('" + href +"');")
      WebDriverWait(driver, 10).until(EC.number_of_windows_to_be(2))
      handels_now =driver.window_handles
      driver.switch_to.window([x for x in handels_now if x != handel_initially][0])
      time.sleep(5) # perform your tasks within the new tab for each league
      driver.close()
      driver.switch_to_window(handel_initially)
  driver.quit()