尝试获取按钮标签的属性时没有此类元素错误

Question

我正在尝试获取一些按钮标签的属性。

driver.get('https://migroskurumsal.com/magazalarimiz/')

try:
    select = WebDriverWait(driver, 10).until(
        EC.presence_of_element_located((By.ID, 'stores'))
    )
    print('Dropdown is ready!')
except TimeoutException:
    print('Took too much time!')

select = Select(driver.find_element(By.ID, 'stores'))

select.select_by_value('2')
shopList = driver.find_element(By.ID, "shopList")
try:
    WebDriverWait(driver, 10).until(
        EC.visibility_of_all_elements_located((By.XPATH, "//ul[@id='shopList']/li/div/button"))
    )
    print('Shoplist is ready!')
except TimeoutException:
    print('Took too much time!')
    driver.quit()

print(shopList.get_attribute("class"))

li_items = shopList.find_elements(By.TAG_NAME, 'li')

for item in li_items:
    
    first = item.find_element(By.TAG_NAME, 'div')
    second = first.find_element(By.TAG_NAME, 'button')
    coord = second.get_attribute("onclick")
    print(coord)

我正在等待加载所有按钮元素。但是，当我尝试打印所有按钮标签的onclick 属性时，它只打印前两个，然后抛出“NoSuchElementException：消息：没有这样的元素：无法定位元素”。但我不知道为什么。您可以通过转到“https://migroskurumsal.com/magazalarimiz/”并从最右侧的下拉菜单中选择“Migros”来查看 html。我恳请您的帮助。谢谢。

Answer 1

visibility_of_all_elements_located 不会真正等待与传递的定位器匹配的所有元素变为可见。
实际上，此方法与visibility_of_element_located 方法类似，只有一个区别：visibility_of_element_located 返回单个 Web 元素，而 visibility_of_all_elements_located 返回 Web 元素列表。
为了实现您在此处查找的内容，您可以在应用 visibility_of_all_elements_located 方法后添加 1 秒的短暂延迟，以让所有 Web 元素加载。
请试试这个：

driver.get('https://migroskurumsal.com/magazalarimiz/')

try:
    select = WebDriverWait(driver, 10).until(EC.presence_of_element_located((By.ID, 'stores')))
    print('Dropdown is ready!')
except TimeoutException:
    print('Took too much time!')

select = Select(driver.find_element(By.ID, 'stores'))

select.select_by_value('2')
shopList = driver.find_element(By.ID, "shopList")
try:
    WebDriverWait(driver, 10).until(EC.visibility_of_all_elements_located((By.XPATH, "//ul[@id='shopList']/li/div/button")))
    time.sleep(1)

    print('Shoplist is ready!')
except TimeoutException:
    print('Took too much time!')
    driver.quit()

print(shopList.get_attribute("class"))

li_items = shopList.find_elements(By.TAG_NAME, 'li')

for item in li_items:
    
    first = item.find_element(By.TAG_NAME, 'div')
    second = first.find_element(By.TAG_NAME, 'button')
    coord = second.get_attribute("onclick")
    print(coord)