python runtime_error ai_generated true

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

ID: python/pytest-selenium-stale-element

Also available as: JSON · Markdown · 中文
80%Fix Rate
86%Confidence
0Evidence
2024-09-30First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
4.18 active — — —
4.20 active — — —

Root Cause

The test holds a WebElement reference obtained before a DOM re-render (navigation, AJAX update, React key change); the underlying node was replaced.

generic

中文

测试持有在 DOM 重新渲染（导航、AJAX 更新、React key 变化）之前获取的 WebElement 引用；底层节点已被替换。

Workarounds

  1. 90% success 
    def click_row(driver, row_text):
    for _ in range(5):
        try:
            row = driver.find_element(By.XPATH, f"//tr[td[text()='{row_text}']]")
            row.find_element(By.CSS_SELECTOR, 'button.delete').click()
            return
        except StaleElementReferenceException:
            continue
    raise AssertionError('element never stabilized')
  2. 93% success 
    from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.common.by import By

el = WebDriverWait(driver, 10).until(
    EC.element_to_be_clickable((By.ID, 'submit'))
)
el.click()

Dead Ends

Common approaches that don't work:

  1. 75% fail

    The element may still be replaced after the sleep; timing is not the root cause and the test becomes slow and flaky.

  2. 85% fail

    Swallowing the exception skips the assertion entirely, producing false positives and hiding real UI regressions.