selenium给出“消息：没有这样的窗口：目标窗口已从未知错误关闭：找不到web视图”

Question

我有一个用python编写的selenium脚本，它单击一个链接，然后切换到链接打开的选项卡，这个过程需要在第一次正常时重复3次，然后执行driver.close()以关闭当前活动选项卡，但在第二个循环中，我收到以下错误：

File "main.py", line 50, in main
    driver.find_element_by_xpath('//*[@id="daily-sets"]/mee-card-group[1]/div/mee-card[2]/div/card-content/mee-rewards-daily-set-item-content/div/div[3]/a').click()
  File "C:\Users\\AppData\Local\Programs\Python\Python39\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 394, in find_element_by_xpath
    return self.find_element(by=By.XPATH, value=xpath)
  File "C:\Users\\AppData\Local\Programs\Python\Python39\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 976, in find_element
    return self.execute(Command.FIND_ELEMENT, {
  File "C:\Users\\AppData\Local\Programs\Python\Python39\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 321, in execute
    self.error_handler.check_response(response)
  File "C:\Users\\AppData\Local\Programs\Python\Python39\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 242, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.NoSuchWindowException: Message: no such window: target window already closed
from unknown error: web view not found

代码如下：

from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.chrome.options import Options
from selenium.webdriver.common.action_chains import ActionChains
from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.common.keys import Keys
import time
from data import *

def main():

    driver = webdriver.Chrome(executable_path=driverpath, options=options)
    driver.get(URL)

    #first
    driver.find_element_by_xpath('//*[@id="daily-sets"]/mee-card-group[1]/div/mee-card[1]/div/card-content/mee-rewards-daily-set-item-content/div/div[3]/a').click()
    driver.switch_to.window(driver.window_handles[1])
    time.sleep(30)
    driver.close()
    
    #second
    time.sleep(0.5)
    driver.find_element_by_xpath('//*[@id="daily-sets"]/mee-card-group[1]/div/mee-card[2]/div/card-content/mee-rewards-daily-set-item-content/div/div[3]/a').click()
    driver.switch_to.window(driver.window_handles[1])
    time.sleep(30)
    driver.close()
    
    #third
    time.sleep(0.5)
    driver.find_element_by_xpath('//*[@id="daily-sets"]/mee-card-group[1]/div/mee-card[3]/div/card-content/mee-rewards-daily-set-item-content/div/div[3]/a').click()
    driver.switch_to.window(driver.window_handles[1])
    time.sleep(30)
    driver.close()

Answer 1

这里有一种更简单的方法，可以循环3次单击，然后从选项卡转到父句柄

for i in range(1,4):
    driver.find_element_by_xpath('//*[@id="daily-sets"]/mee-card-group[1]/div/mee-card[{}]/div/card-content/mee-rewards-daily-set-item-content/div/div[3]/a'.format(i)).click()
    driver.switch_to.window(driver.window_handles[-1])
    time.sleep(30)
    driver.close()
    driver.switch_to.window(driver.window_handles[-1])