Can't find element selenium python

Question

<input placeholder="Enter Password" class="password-input" type="password">

Above is the element I am trying to send keys to using the below code.

from selenium import webdriver
from selenium.common.exceptions import StaleElementReferenceException, TimeoutException
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.common.keys import Keys

driver = webdriver.Chrome('C:\chromedriver_win32\chromedriver.exe')

driver.get('https://howsecureismypassword.net/')

elem = driver.find_element_by_name('password-input')
elem.send_keys('password')

html = driver.page_source

This is the error I get and can't figure out why.

 RESTART: C:\Users\bakat\AppData\Local\Programs\Python\Python35-32\Science 

Experiment\Science_Experiment_Password_Tester.py 
Traceback (most recent call last):
  File "C:\Users\bakat\AppData\Local\Programs\Python\Python35-32\Science Experiment\Science_Experiment_Password_Tester.py", line 18, in <module>
    elem = driver.find_element_by_name('password-input')
  File "C:\Users\bakat\AppData\Local\Programs\Python\Python35-32\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 365, in find_element_by_name
    return self.find_element(by=By.NAME, value=name)
  File "C:\Users\bakat\AppData\Local\Programs\Python\Python35-32\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 752, in find_element
    'value': value})['value']
  File "C:\Users\bakat\AppData\Local\Programs\Python\Python35-32\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 236, in execute
    self.error_handler.check_response(response)
  File "C:\Users\bakat\AppData\Local\Programs\Python\Python35-32\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 192, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.NoSuchElementException: Message: no such element: Unable to locate element: {"method":"name","selector":"password-input"}
  (Session info: chrome=57.0.2987.133)
  (Driver info: chromedriver=2.27.440174 (e97a722caafc2d3a8b807ee115bfb307f7d2cfd9),platform=Windows NT 10.0.14393 x86_64)

This is the site - https://howsecureismypassword.net/

Christopher Apple · Accepted Answer · 2017-04-18 23:08:28Z

1

Try find_element_by_class_name instead of find_element_by_name.

Looking at the HTML of your site, the class name of the element you want is password-input, not the name.

from selenium import webdriver
from selenium.common.exceptions import StaleElementReferenceException, TimeoutException
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.common.keys import Keys

driver = webdriver.Chrome('C:\chromedriver_win32\chromedriver.exe')

driver.get('https://howsecureismypassword.net/')

elem = driver.find_element_by_class_name('password-input')
elem.send_keys('password')

html = driver.page_source

answered Apr 18, 2017 at 23:08

Christopher Apple

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3 Comments

Harry Tong Over a year ago

I still get the same error but with this changed --- selenium.common.exceptions.NoSuchElementException: Message: no such element: Unable to locate element: {"method":"class name","selector":"password-input"}

Christopher Apple Over a year ago

Maybe try putting a wait in between driver.get and the find_element line. Sometimes selenium moves too fast for it's own good, and tries to find an element on a partially loaded page. Try importing time then putting the line time.sleep(5) in between driver.get and elem=driver.find_elem... That's an extremely long wait, but it should show if that's the problem.

Harry Tong Over a year ago

You were right Christopher Apple it works now - Thanks!

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