StaleElementReferenceException error on Python Selenium

Question

Can you please help solve this problem?

When I run this code:

from selenium import webdriver from selenium.webdriver import ActionChains from selenium.webdriver.common.by import By import time from selenium.common.exceptions import StaleElementReferenceException class ActionsMy(): def test(self): driver = webdriver.Chrome() driver.maximize_window() driver.get("https://demoqa.com/") driver.implicitly_wait(3) action = ActionChains(driver) # Sortable driver.find_element(By.XPATH, "//a[contains(text(),'Sortable')]").click() item1 = driver.find_element_by_xpath("//li[contains(text(),'Item 1')]") action.drag_and_drop_by_offset(item1, 0, 150).perform() time.sleep(1) # Resizable driver.find_element_by_link_text("Resizable").click() resizableElement = driver.find_element_by_xpath( "//div[@class='ui-resizable-handle ui-resizable-se ui-icon ui-icon-gripsmall-diagonal-se']") action.drag_and_drop_by_offset(resizableElement, 200, 200).perform() dd = ActionsMy() dd.test()

I get this error:

selenium.common.exceptions.StaleElementReferenceException: Message: stale element reference: element is not attached to the page document

My research showed this problem related to the fact that the element is no longer in the DOM, or it changed.

I have used this solution:

from selenium import webdriver from selenium.webdriver import ActionChains from selenium.webdriver.common.by import By import time from selenium.common.exceptions import StaleElementReferenceException class ActionsMy(): def test(self): driver = webdriver.Chrome() driver.maximize_window() driver.get("https://demoqa.com/") driver.implicitly_wait(3) action = ActionChains(driver) # Sortable driver.find_element(By.XPATH, "//a[contains(text(),'Sortable')]").click() item1 = driver.find_element_by_xpath("//li[contains(text(),'Item 1')]") action.drag_and_drop_by_offset(item1, 0, 150).perform() time.sleep(1) # Resizable driver.find_element_by_link_text("Resizable").click() try: resizableElement = driver.find_element_by_xpath( "//div[@class='ui-resizable-handle ui-resizable-se ui-icon ui-icon-gripsmall-diagonal-se']") except StaleElementReferenceException: action.drag_and_drop_by_offset(resizableElement, 200, 200).perform() dd = ActionsMy() dd.test()

In this case, there are no errors, but the operation is not performed.

I have also used WebDriverWait, but it did not help either.

Maybe a retry logic can help: stackoverflow.com/questions/12967541/… — Ramon Medeiros
– Ramon Medeiros, Commented Nov 14, 2019 at 14:02

Guy · Accepted Answer · 2019-11-14 14:34:06Z

The problem is in ActionChains, it retains all the previous actions, including the drag_and_drop_by_offset with item1 so when perform() is called it tries to do this action again, but item1 is stale.

There is reset_actions() function to clear those actions, but it doesn't work. There is a bug report that indicates it will be fixed in Selenium 4.

In the meantime, create new ActionChains instance and use it

resizable_element = driver.find_element_by_xpath("//div[@class='ui-resizable-handle ui-resizable-se ui-icon ui-icon-gripsmall-diagonal-se']") action = ActionChains(driver) action.drag_and_drop_by_offset(resizable_element, 200, 200).perform()

Collectives™ on Stack Overflow

StaleElementReferenceException error on Python Selenium

1 Answer 1

Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Linked

Related