Page Comparison

...

element_id = object

def find_the_element_by_id(driver, element_id):
    element = driver.find_element_by_id(element_id)
    if element:
        return element
    else:
        return False

def function_where_test_written():
    global element_id
    
    element_id = "qa"
    qa = WebDriverWait(driver, 1).until(find_the_element_by_id)
    qa.click()

...

Line 3-8 : create a function that does the query on the DOM using the webdriver that is passed in

Line 11 13 : specify the thing that you want search for

Line 12 14 : use a special API call WebDriverWait() that tells the webdriver (the first parameter being passed in) to wait for a certain period (the second parameter, in this example up to 1 second) until calling your query function “find_the_element_by_id” - this is passed into the until() method. Essentially it causes the WebDriver to slow down until the DOM is stable (in other words the page has been properly loaded).

Line 13 15 : perform your action on the element as normal

...