有时我可以单击按钮，有时不起作用

Question

如果在页面上找到元素，我会尝试单击按钮。该元素大部分时间都在页面上。 3次有效，1次无效。 这是我的代码：

elements = driver.find_elements_by_xpath("//h2[contains(text(),'No results found')]")
if (len(elements)>0):
    WebDriverWait(driver, 30).until(EC.element_to_be_clickable((By.CLASS_NAME, 'ut-navigation-button-control'))).click()
else:
    WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.XPATH, "//button[contains(., 'Buy Now')]"))).click()

以下是我有时会遇到的错误：

ElementClickInterceptedException: Message: Element <button class="ut-navigation-button-control"> is not clickable at point (128,80) because another element <div class="ut-click-shield showing interaction"> obscures it

    try:
        WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.XPATH, "//button[contains(., 'Buy Now')]"))).click()
    except:
        WebDriverWait(driver, 30).until(EC.element_to_be_clickable((By.CLASS_NAME, 'ut-navigation-button-control'))).click()

它的工作原理是这样的，但是在除此之外需要很长时间。有谁知道如何让它快速通过？

Answer 1

文本为No results found的元素只会在搜索不成功后出现。在成功搜索时，要单击所需元素，您必须为 element_to_be_clickable() 诱导 WebDriverWait，并且您可以使用以下基于 Locator Strategies 的 xpath：

try:
    # wait for the visibility of the element with text as "No results found"
    WebDriverWait(driver, 20).until(EC.visibility_of_element_located((By.XPATH, "//h2[text()='No results found']")))
    # if the element with text as No results found, induce WebDriverWait for invisibilityOfElement obscuring the clickable element
    new WebDriverWait(driver, 20).until(ExpectedConditions.invisibilityOfElementLocated(By.cssSelector("//div[@class='ut-click-shield showing interaction']")));
    # once the invisibilityOfElement obscuring the clickable element is achieved, click on the desired element inducing WebDriverWait
    WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.XPATH, "//button[@class='ut-navigation-button-control']"))).click()
except TimeoutException:
    # if search for the element with text as "No results found" raises "TimeoutException" exception click on the element with text as "Buy Now" inducing WebDriverWait
    WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.XPATH, "//button[contains(,. 'Buy Now')]"))).click()

Answer 2

您可以对元素执行JavaScriptExecutor点击，因为它直接对div执行操作，不受页面上元素位置的影响。
你可以这样做：

button = driver.find_element_by_xpath("//button[contains(text(),'Back')]")
driver.execute_script("arguments[0].click();", button)