Selenium Error in Python - Message: no such element: Unable to locate element

Question

I am trying to get data from a password protected website with Selenium. However I get stuck right in the beginning at login with the following error message:

NoSuchElementException: Message: no such element: Unable to locate element: {"method":"css selector","selector":"[name="username"]"}
  (Session info: chrome=87.0.4280.66)

The name I use is correct for sure, I inspected the website. Including waiting time did not help either...

My code is:

from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from getpass import getpass



driver = webdriver.Chrome()


driver.get("https://clearing.apcs.at/emwebapcsem/startApp.do")

print(driver.title)
print(driver.current_url)


# create an object for searchbox
username=driver.find_element_by_name("username")
password=driver.find_element_by_name("password")
# typte the input
username.send_keys("XXXXXX")
password.send_keys("XXXXXX")
driver.find_element_by_name('login').click()

Any suggestions would be appreciated.

undetected Selenium · Accepted Answer · 2020-12-05 15:42:51Z

To send a character sequence to the Benutzer and Passwort field as the elements are within an <frame> so you have to:

Induce WebDriverWait for the desired frame to be available and switch to it.
Induce WebDriverWait for the desired element to be clickable.

You can use either of the following Locator Strategies:

Using CSS_SELECTOR:

driver.get('https://clearing.apcs.at/emwebapcsem/startApp.do')
WebDriverWait(driver, 20).until(EC.frame_to_be_available_and_switch_to_it((By.CSS_SELECTOR,"frame[title='menu']")))
WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.CSS_SELECTOR, "input.loginContentBoxInput[name='username']"))).send_keys("Endre")
driver.find_element_by_css_selector("input.loginContentBoxInput[name='password']").send_keys("Endre")

Using XPATH:

driver.get('https://clearing.apcs.at/emwebapcsem/startApp.do')
WebDriverWait(driver, 20).until(EC.frame_to_be_available_and_switch_to_it((By.XPATH,"//frame[@title='menu']")))
WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.XPATH, "//input[@class='loginContentBoxInput' and @name='username']"))).send_keys("Endre")
driver.find_element_by_xpath("//input[@class='loginContentBoxInput' and @name='password']").send_keys("Endre")

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

Browser Snapshot:

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