Selenium module `NoSuchElementElement` exception [PYTHON]

Question

raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.NoSuchElementException: Message: Unable to locate element: #loginUsername

I used selenium module to automate the login process of some websites and when I executed the program, it throws NoSuchElementException while I tried all the find_element_by_* methods ( by id, by class, by css selector, by text, by name attr ) but, still I get this error and I don't know how to make this program error-free so, is there any other way to debug the program??

Share the URL. If not possible, update the question with HTML. — pmadhu
– pmadhu, Commented Sep 30, 2021 at 4:00
no iframe or what so ever it was just wrapped inside a form tag and a fieldset tag — user16994467
– user16994467, Commented Sep 30, 2021 at 12:59

Praveen · Accepted Answer · 2021-10-01 05:42:30Z

1

I don't have enough reputation to comment so posting an answer. I assume any one of the below reason can be the cause.

Please check the element xPath id etc. in chrome console to make sure you are using right locator
There is not enough time you are giving for element to be accessible. Please use explicit wait.
May be element is present on DOM but not visible when you try to perform action.
From error message I can see you are using css selector #loginUsername. I assume you are not giving tag name like it suppose to be input#loginUsername

answered Oct 1, 2021 at 5:42

Praveen

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Shine J · Accepted Answer · 2021-10-01 13:21:39Z

I understand that there are no iframes from what you said above.

Make sure that you wait for the element to be loaded and made available before you call find_element(...).

Do something like this:

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

driver = webdriver.Chrome("D:/chromedriver/94/chromedriver.exe")
driver.get("https://yourwebsite.com")

# use By.XPATH, By.CLASS_NAME etc. depending on the 
# element you're referring to
WebDriverWait(driver, 60).until(EC.presence_of_element_located((By.ID, 'loginUsername')))
login = driver.find_element(By.ID, 'loginUsername')

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