程序在调试模式下运行良好，但正常运行会出现错误

Question

这是我当前的代码，但每当我运行它时，我都会在的最后一行出现错误

stale element reference: element is not attached to the page document

from selenium import webdriver
url = "https://otctransparency.finra.org/otctransparency/OtcDownload"
driver.get(url)
driver.maximize_window()
driver.implicitly_wait(5)
agree = driver.find_elements_by_xpath("//button[@class='btn btn-warning']")[0]
agree.click()
nonats = driver.find_element_by_link_text('OTC (Non-ATS) Download')
nonats.click()
driver.find_element_by_xpath("//img[@src='./assets/icon_download.png']").click()
driver.switch_to.window(driver.window_handles[0])
driver.find_element_by_xpath("(//div[@class='checkbox-inline'])[2]").click()
driver.find_element_by_xpath("(//div[@class='checkbox-inline'])[1]").click()
driver.implicitly_wait(5)
button = driver.find_element_by_xpath("//img[@src='./assets/icon_download.png']")
print(button.is_displayed())
button.click()

当我在调试模式下逐行运行代码时，一切都很好，没有任何错误。任何帮助都会很棒。

编辑：这是我的堆栈跟踪

Traceback (most recent call last):
File "C:UsersderpeDesktoppython projects personaltesting finrauntitled1.py", line 31, in <module>
button.click()
File "C:Usersderpeanaconda3libsite-packagesseleniumwebdriverremotewebelement.py", line 80, in click
self._execute(Command.CLICK_ELEMENT)
File "C:Usersderpeanaconda3libsite-packagesseleniumwebdriverremotewebelement.py", line 633, in _execute
return self._parent.execute(command, params)
File "C:Usersderpeanaconda3libsite-packagesseleniumwebdriverremotewebdriver.py", line 321, in execute
self.error_handler.check_response(response)
File "C:Usersderpeanaconda3libsite-packagesseleniumwebdriverremoteerrorhandler.py", line 242, in check_response
raise exception_class(message, screen, stacktrace)
StaleElementReferenceException: stale element reference: element is not attached to the page document
(Session info: chrome=86.0.4240.75)

Answer 1

在搜索下载链接时，单击复选框会触发页面刷新。

调用sleep以允许刷新完成。

driver.implicitly_wait(5)
import time   # add this 
time.sleep(1)   # add this
button = driver.find_element_by_xpath("//img[@src='./assets/icon_download.png']")
print(button.is_displayed())
button.click()

我尝试了其他selenium等待，但它们对我不起作用。可能是因为元素搜索在刷新开始前成功了，但仍然点击到很晚。