在python selenium中单击选定的元素,使用webdriverwait/ec/不会起作用。

这是我要跟踪的医生 http://selenium-python.readthedocs.io/waits.html

此引发异常:

driver = webdriver.Chrome(CHROME_DRIVER_PATH)
iframe_xpath = "//*[@id='targetForCaptcha1']/div/div/iframe"
captcha_iframe = driver.find_element_by_xpath(iframe_xpath)

driver.switch_to_frame(captcha_iframe)
checkBox = WebDriverWait(driver, 10).until(EC.presence_of_element_located((By.XPATH, iframe_xpath)))
checkBox.click()

raise TimeoutException(message, screen, stacktrace) selenium.common.exceptions.TimeoutException: Message:

然而,这是可行的:

driver = webdriver.Chrome(CHROME_DRIVER_PATH)
iframe_xpath = "//*[@id='targetForCaptcha1']/div/div/iframe"
captcha_iframe = driver.find_element_by_xpath(iframe_xpath)

action=ActionChains(driver)
action.move_to_element(captcha_iframe)
action.click().perform()

上面两个是独立的会话,从头开始运行python脚本。

为什么以前的工作看起来更标准?