Selenium即使存在也找不到元素

Question

I'm creating a simple selenium script to enter username and password to log in. Here is my code:

driver = webdriver.Chrome(executable_path=r'C:\\Users\\Aspire5\\Downloads\\chromedriver_win32\\chromedriver.exe')
driver.get("https://ven02207.service-now.com/")

username = driver.find_element_by_xpath('//*[@id="user_name"]')
username.send_keys('username')

password = driver.find_element_by_xpath('//*[@id="user_password"]')
password.send_keys('this_is_password')

But I'm getting following exception:

selenium.common.exceptions.NoSuchElementException: Message: no such element: Unable to locate element: {"method":"xpath","selector":"//*[@id="user_name"]"}

I'm accessing this website from code. The XPath I've provided in code are exists on the page, but still it's returning No Such Element Exception .

What I'm missing here? I've seen this , this questions for this, but couldn't find exact answer.

Answer 1

you need to first switch to the frame.. since the input tag is inside the frame

frame = driver.find_element_by_xpath('//*[@id="gsft_main"]')
driver.switch_to.frame(frame)
driver.find_element_by_id('user_name').send_keys('sarthak')
driver.find_element_by_id('user_password').send_keys('sarthak')

Answer 2

You need to wait for element to present in DOM. So try to wait before getting web element driverwebdriver.Chrome(executable_path=r'C:\Users\Aspire5\Downloads\chromedriver_win32\chromedriver.exe')

driver.get("https://ven02207.service-now.com/")

username = WebDriverWait(driver, 10).until(
            EC.presence_of_element_located((By.XPATH, "//*[@id="user_name"]"))
username.send_keys('username')

password = WebDriverWait(driver, 10).until(
            EC.presence_of_element_located((By.XPATH, '//*[@id="user_password"]'))
password.send_keys('this_is_password')    

Answer 3

Just use escape slashes and you'll be fine

'//*[@id=\"user_name\"]'
'//*[@id=\"user_password\"]'

Answer 4

I'm creating a simple selenium script to enter username and password to log in. Here is my code:

driver = webdriver.Chrome(executable_path=r'C:\\Users\\Aspire5\\Downloads\\chromedriver_win32\\chromedriver.exe')
driver.get("https://ven02207.service-now.com/")

username = driver.find_element_by_xpath('//*[@id="user_name"]')
username.send_keys('username')

password = driver.find_element_by_xpath('//*[@id="user_password"]')
password.send_keys('this_is_password')

But I'm getting following exception:

selenium.common.exceptions.NoSuchElementException: Message: no such element: Unable to locate element: {"method":"xpath","selector":"//*[@id="user_name"]"}

I'm accessing this website from code. The XPath I've provided in code are exists on the page, but still it's returning No Such Element Exception .

What I'm missing here? I've seen this , this questions for this, but couldn't find exact answer.