Python, Selenium: How to check existence of an element?

Question

I'm trying to go through a website one page at a time, clicking on the element next , which in the HTML code is class="pg-next" . Eventually, though, I'm going to get to the end, and there won't be a next element anymore, at which point I'd like to stop the loop. I have something like this:

pg_next_exists = True
while pg_next_exists:
    #
    # carry out necessary actions
    #
    if ...: # if the pg-next element can be found
        pass
    else:
        pg_next_exists = False # at which point the while loop stops

How do I check if that element still exists?

Answer 1

Why don't you use wait try something like this

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

browser = webdriver.Firefox()
browser.get('http://example.com/')

try:
     wait = WebDriverWait(browser, 10) 
     search = wait.until(EC.element_to_be_clickable((By.CLASS_NAME, 'next')))
     search.click()
except:
     # Process element not found here