python - EC.element_to_be_clickable 和 EC.presence_of_element_located to click() 一个元素的区别

Question

间歇性单击元素时出现 TimeoutExceptions。我尝试过显式等待和 time.sleep()。它工作了一段时间，我再次得到异常(exception)。

我想了解它是否是由预期条件引起的。

WebDriverWait(self.driver, 40).until(EC.element_to_be_clickable((By.XPATH, <locator>  ))).click()

如果我使用以下条件，是否有助于避免超时异常？

element = WebDriverWait(self.driver, 40).until(EC.presence_of_element_located((By.XPATH, <locator>  )))
element.click()

Answer 1

基于 selenium 的官方文档和代码实现。
presence_of_element_located(locator) 定义:

An expectation for checking that an element is present on the DOM of a page. This does not necessarily mean that the element is visible. locator - used to find the element returns the WebElement once it is located

element_to_be_clickable(locator) :

An Expectation for checking an element is visible and enabled such that you can click it.

预期条件在定义的超时期限内循环执行条件。它将轮询直到 true返回条件。如 false返回，它将继续循环，直到达到最大超时。