NoSuchElementException: Message: Unable to locate element while trying to locate an element using Selenium and Python

Question

I have a specific login button I can't access with Python Firefox Selenium. It's the login button on this webpage: https://schalter.asvz.ch/tn/lessons/39616

I'm running Ubuntu 16.04, Python 3.5.2, Firefox 65.0 and Selenium 3.141.

I tried several combinations of approaches I found here on stackoverflow including the following:

login = driver.find_element_by_xpath("//*[@class='btn btn-default ng-star-inserted']")

login = driver.find_element_by_xpath("//button[@class='btn btn-default ng-star-inserted']")

login = driver.find_element_by_class_name('btn btn-default ng-star-inserted')

login = driver.find_element_by_xpath("//*[contains(., 'Login')]")

login = driver.find_element_by_name('app-lessons-enrollment-button')

But none of them worked. Always resulting in:

NoSuchElementException: Message: Unable to locate element: //*[@class='btn btn-default ng-star-inserted']

What is so different with this button? How can I make it work?

undetected Selenium · Accepted Answer · 2022-01-18T11:00:50.520

This error message...

NoSuchElementException: Message: Unable to locate element: //*[@class='btn btn-default ng-star-inserted']

...implies that the ChromeDriver was unable to locate the desired element through the locator you have used.

Virtually, your first two(2) locators were just perfecto.

However, the desired element is an Angular element so to locate the element you have to induce WebDriverWait for the element to be clickable and you can use either of the following Locator Strategies:

Using CSS_SELECTOR:

WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.CSS_SELECTOR, "button.btn.btn-default.ng-star-inserted[title='Login']"))).click()

Using XPATH:

WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.XPATH, "//button[@class='btn btn-default ng-star-inserted' and @title='Login']"))).click()

Note : You have to add the following imports :

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

Good answer using `WebDriverWait` and the `and` in the Xpath! — Moshe Slavin, Mar 18 '19 at 10:35

score 0 · Answer 2 · answered Mar 18 '19 at 08:28

0

Try the below option.

Login=driver.find_element_by_css_selector("button.ng-star-inserted")

Or try this

WebDriverWait(driver,10).until(EC.element_to_be_clickable((By.CSS_SELECTOR,'button.ng-star-inserted'))).click()

You need following imports for option 2.

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

answered Mar 18 '19 at 08:28

KunduK

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First option gives me No Such Element Exception. Second one gives me a Timeout Exception. – pixelpress Mar 18 '19 at 22:19

Ali · Answer 3 · 2019-03-18T10:26:56.063

0

Try the below xpath:

xpath = "//button[@title='Login']"
element = driver.find_element_by_xpath(xpath);
element.click();

edited Mar 18 '19 at 10:26

answered Mar 18 '19 at 08:33

Ali

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`xpath = "//button[@title='Login']` would also work fine (have tried it). `i` tag doesn't need to be appended. – Sameer Arora Mar 18 '19 at 08:46
Also gives me a No Such Element Exception. – pixelpress Mar 18 '19 at 22:23

score 0 · Answer 4 · answered Mar 18 '19 at 09:47

0

Following xpath works just fine (tested using selenium java)

//button[@title='Login']

I was able to locate and click the button.

answered Mar 18 '19 at 09:47

Matthewek

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Also gives me a No Such Element Exception – pixelpress Mar 18 '19 at 22:21

NoSuchElementException: Message: Unable to locate element while trying to locate an element using Selenium and Python

4 Answers4