Issue with login using selenium and python - python-3.x

Question

I am getting following error
no such element: Unable to locate element: {"method":"xpath","selector":"//input[#placeholder='User ID']"}
(Session info: chrome=78.0.3904.70). Let me know how can i pass user id here

Answer 1

Without additional context, I can only recommend that you wait on the element before sending keys to it:
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
input = WebDriverWait(driver, 30).until(
EC.visibility_of_element_located((By.XPATH, "//input[#placeholder='User ID']")))
input.send_keys("userId")
Full working sample as requested by asker:
from selenium import webdriver
from time import sleep
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC
driver = webdriver.Chrome()
driver.get("https://kite.zerodha.com/connect/login?api_key=b8w63qg9m4c3zubd&sess_id=bW3U1OwidO97o11scfeTbyfX4j5tViNp")
input = WebDriverWait(driver, 30).until(
EC.visibility_of_element_located((By.XPATH, "//input[#placeholder='User ID']")))
input.send_keys("userId")
sleep(10) # this sleep is here so you can visually verify the text was sent.
driver.close()
driver.quit()
The above code has succeeded every time I have run it.