How to specify the child element in a WebDriverWait expected condition?

Question

Lets say you have an element on a webpage found successfully

parent_element = driver.find_element_by_css_selector(some_css_selector)

I want to enact a WebDriverWait which waits until one of its child elements is clickable. Usually you would do that with

WebDriverWait(driver,30).until(EC.element_to_be_clickable((By.CSS_SELECTOR,some_css_selector)))

however in my case I want some_css_selector to be the child element of parent_element. How can I do this?

Edit: For instance - I have learned that I can do this:

wait = WebDriverWait(driver, 30)
child_element = wait.until(lambda d:parent_element.find_element_by_css_selector('child_selector'))

which seems to work. However this is just waiting until that child element appears. I want to use the expected conditions (such as element_to_be_clickable).

from your question its unclear which element you are trying to access with parent child relationship — SeleniumUser
– SeleniumUser, Commented Apr 21, 2020 at 20:43
that's true, maybe I can edit my question to make it non-specific to my use case — BigBoy1337
– BigBoy1337, Commented Apr 21, 2020 at 20:46

mkhurmi · Accepted Answer · 2020-04-21 23:30:54Z

2

Here you are trying to pass by locator CSS_SELECTOR, so you have to locate using parent-child relationship:

  WebDriverWait(driver,30).until(EC.element_to_be_clickable(By.CSS_SELECTOR,//Parent-selector > child-Selector))

I am able to pass the webelement in java with element_to_be_clickable, i am not sure whether it will work in python or not. You can give it a try.

child_element= parent_element.find_element_by_css_selector('child_selector')
WebDriverWait(driver,30).until(EC.element_to_be_clickable(child-element))

answered Apr 21, 2020 at 23:30

mkhurmi

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Comments

SeleniumUser · Accepted Answer · 2020-04-21 22:11:08Z

0

If you want to handle child element based on presence of parent then you can use sibling function to fetch sibling to the parent web element, in simple words. How to deal with sibling using selenium

Also there another way you can use if loop and check for child based on presence of your parent element.

if parent:
    if child:
        print "do stuff"
    else:
        print "failed to locate child"
else:
     print "failed to locate parent"

edited Apr 21, 2020 at 22:11

answered Apr 21, 2020 at 21:08

SeleniumUser

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2 Comments

BigBoy1337 Over a year ago

I don't quite understand... I know that the parent exists. And I know that the child exists. My question is specifically about using the Expected Conditions for a child selector in a wait. I don't see how that would integrate here.

SeleniumUser Over a year ago

ok, if you go to google.com and check this //div[@class='szppmdbYutt__middle-slot-promo']//child::a xpath you will get to know is your parent element and in the parent your are trying to locate anchor tag .

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