Python, unable to find element with class name

Question

First, i'm an absolute beginner about this, have been trying to locate an element on a web page (lg.telin.co.id/lgnew/cacti.php), this element has the exact name when i wrote the code which is "login_username". However, i got the message " Unable to locate element " until now. Also this web page does not have any id

i used find_element_by_name but nothing work so far

from selenium import webdriver

browser=webdriver.Firefox(executable_path="C:\\Program Files (x86)\\Python37-32\\BrowserDriver\\geckodriver.exe")
browser.get("https://lg.telin.co.id/lgnew/cacti.php")

usernameStr = '123456'

username = browser.find_element_by_xpath("/input[@name='login_username']")

username.send_keys(usernameStr)

if the code work, text will be filled with characters i assume

Andersson · Accepted Answer · 2019-01-03 10:01:49Z

1

Try switch to iframe before handling form input fields:

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

browser.switch_to.frame('cacti')

username = WebDriverWait(browser, 10).until(EC.element_to_be_clickable((By.NAME, 'login_username')))
username.send_keys(usernameStr)

answered Jan 3, 2019 at 10:01

Andersson

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undetected Selenium · Accepted Answer · 2019-01-03 10:06:43Z

You were pretty close. As the the desired elements are within an <iframe> 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 the following solution:

Using CSS_SELECTOR:

WebDriverWait(driver, 10).until(EC.frame_to_be_available_and_switch_to_it((By.CSS_SELECTOR,"iframe[name='cacti']")))
WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.CSS_SELECTOR, "input[name='login_username']"))).click()

Using XPATH:

WebDriverWait(driver, 10).until(EC.frame_to_be_available_and_switch_to_it((By.XPATH,"//iframe[@name='cacti']")))
WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.XPATH, "//input[@name='login_username']"))).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

Here you can find a relevant discussion on Ways to deal with #document under iframe

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