Python硒：迭代錯誤

我試圖從網頁下載所有的xml文件。該過程要求依次定位xml文件下載鏈接，並且一旦點擊了這樣的下載鏈接，就會導致需要提交下載的表單。我面臨的問題在於這些循環的迭代，一旦從網頁下載第一個文件，我收到一個錯誤：Python硒：迭代錯誤

「selenium.common.exceptions.StaleElementReferenceException：消息：stale的元素引用：該元素不再連接到DOM或頁面已被刷新「

」97081 data-extension xml「是迭代中的第二個可下載文件。我在此附上代碼，任何建議，以糾正這將非常感激。

import os 
import time 
from selenium import webdriver 
from selenium.webdriver.common.keys import Keys 
from selenium.webdriver.support.ui import WebDriverWait 
from selenium.webdriver.support import expected_conditions as EC 
from selenium.webdriver.common.by import By 

fp = webdriver.FirefoxProfile() 

fp.set_preference("browser.download.folderList", 2) 
fp.set_preference("browser.download.manager.showWhenStarting", False) 
fp.set_preference("browser.download.dir", "F:\Projects\Poli_Map\DatG_Py_Dat") 
fp.set_preference("browser.helperApps.neverAsk.saveToDisk", "text/xml") 

driver = webdriver.Firefox(firefox_profile=fp) 

driver.get('https://data.gov.in/catalog/variety-wise-daily-market-prices-data-cauliflower') 
wait = WebDriverWait(driver, 10) 

allelements = driver.find_elements_by_xpath("//a[text()='xml']") 

for element in allelements: 
    element.click() 
    class FormPage(object): 
     def fill_form(self, data): 
      driver.execute_script("document.getElementById('edit-download-reasons-non-commercial').click()") 
      driver.execute_script("document.getElementById('edit-reasons-d-rd').click()") 
      driver.find_element_by_xpath('//input[@name = "name_d"]').send_keys(data['name_d']) 
      driver.find_element_by_xpath('//input[@name = "mail_d"]').send_keys(data['mail_d']) 
      return self 

     def submit(self): 
      driver.execute_script("document.getElementById('edit-submit').click()") 

    data = { 
     'name_d': 'xyz', 
     'mail_d': '[email protected]', 
    } 
    time.sleep(5) 
    FormPage().fill_form(data).submit() 

    time.sleep(5) 
    window_before = driver.window_handles[0] 
    driver.switch_to_window(window_before) 
    driver.back()

來源

2017-10-19 Cashi