Selenium WebDriver Unable to Find Element by Id, Using Python

Question

I'm trying to pull up an element that only gets created after the JavaScript runs, but I keep getting the following error message:

selenium.common.exceptions.NoSuchElementException: Message: u'Unable to locate element: {"method":"id","selector":"post-count"}' ; Stacktrace: Method FirefoxDriver.prototype.findElementInternal_ threw an error in file:///tmp/tmpittNsw/extensions/[email protected]/components/driver_component.js

I'm trying to pull this element up on cnn.com. My code:

socket.setdefaulttimeout(30)
browser = webdriver.Firefox() # Get local session of firefox
browser.get(article_url_txt) # Load page

result = browser.find_element_by_id("post-count")

Maybe your not giving it time to finish loading, is there no onready event you can have call your find element? — NickSlash
– NickSlash, Commented Feb 24, 2013 at 2:53

TAS · Accepted Answer · 2013-02-24 15:32:33Z

1

The element you are looking for is inside an iframe.

The following did the trick for me:

from selenium.webdriver.support.wait import WebDriverWait

# ...

frame = WebDriverWait(browser, 30).until(lambda x: x.find_element_by_id("dsq1"))
browser.switch_to_frame(frame)
result = WebDriverWait(browser, 30).until( lambda x: x.find_element_by_id("post-count"))

Note that I included the use of WebDriverWait(...).until(...) to allow the elements to be created dynamically just in case.

answered Feb 24, 2013 at 15:32

TAS

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Comments

Audun Torp · Accepted Answer · 2015-11-20 11:21:15Z

0

You can tell the WebDriver to wait implicitly until the element is visible.

browser.implicitly_wait(30)
result = browser.find_element_by_id("post-count")

answered Nov 20, 2015 at 11:21

Audun Torp

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