Python/Selenium 单击 ul 中的元素

Question

I am new to Python/Selenium (< 3 days). I am trying to click on the "grades" item of an unordered list (Please see image). I have tried find_element_by_link_text, find_element_by_css_selector but am unable to find it.

Image from inspect element

Thanks.

Answer 1

As per the HTML it is pretty clear that the desired field is within an <iframe> so you have to:

• Induce WebDriverWait for the desired frame to be available and switch to it .

• Induce WebDriverWait for the desired element to be clickable .

• You can use either of the following Locator Strategies :

• Using CSS_SELECTOR :

   WebDriverWait(driver, 20).until(EC.frame_to_be_available_and_switch_to_it((By.ID,"frameDetail"))) element = WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.CSS_SELECTOR, "a#grades")))

• Using XPATH :

   WebDriverWait(driver, 20).until(EC.frame_to_be_available_and_switch_to_it((By.ID,"frameDetail"))) element = WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.XPATH, "//a[@id='grades']")))

• Note : You have to add the following imports :

   from selenium.webdriver.support.ui import WebDriverWait from selenium.webdriver.common.by import By from selenium.webdriver.support import expected_conditions as EC

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Reference

You can find a couple of relevant discussions in:

• Ways to deal with #document under iframe
• Switch to an iframe through Selenium and python