在细分的网页上使用 selenium driver.find_element().click()

Question

First of all, I'm completely new in web scraping, html and selenium, so my question might not seem meaningful to you.

What I'm trying to do: automated click on an image on a webpage. Manual click on this image allows to display new information on a part of the webpage.

How I tried to do it: I found something specific to this image, for example:

<img src="images/btn_qmj.gif" border="0">

So I just entered in python:

xpath = '//img[@src="images/btn_qmj.gif"]'
driver.find_elements_by_xpath(xpath)

Problem: this returns me an empty list. I partially understood why, but I don't have any solution.

image of the html code inspector

I included here an image of the html tree I obtain on the web inspector. As one can see, the tree to reach my line of interest gives "/html/frameset/frame 1 / #document /html/body/center/table/tbody/tr[2]/td/a/img". The issue is that I cannot access -by using an xpath- anything that comes after the #document. If I try to copy the xpath of my line of interest, it tracks it back only up to the 2nd "/html". It is like the page is subdivided, compartmentalized, with inner parts I cannot access. I suppose there is a way to access the #document content, maybe it refers to another webpage, but I'm stuck at that point. I would be very grateful if anyone could help me on this.

Answer 1

您是否尝试先切换到框架？

driver.switch_to.frame('gauche')

Answer 2

You need to switch control to frame first to handle image on it. Please see below code for your reference

 driver.switch_to_frame(frame)
 WebDriverWait(driver, 20).until(
 EC.visibility_of_element_located((By.XPATH, "'//img[@src="images/btn_qmj.gif"]'"))).click()
 driver.switch_to_default_content()

Note :: You need to add below imports

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

Answer 3

The element is present inside an iframe .In order to access the element you need to switch it first.

Induce WebDriverWait () and frame_to_be_available_and_switch_to_it ()

Induce WebDriverWait () and visibility_of_element_located()

WebDriverWait(driver,10).until(EC.frame_to_be_available_and_switch_to_it((By.NAME,"gauche")))
WebDriverWait(driver,10).until(EC.visibility_of_element_located((By.XPATH,"//img[@src='images/btn_qmj.gif']"))).click()

You need to import following libraries.

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