no such element: Unable to locate element using chromedriver and Selenium in production environment

Question

I have a problem with selenium chromedriver which I cannot figure out what\'s causing it. Some weeks ago everything was working OK, and suddenly this error started to show u

Answer 1

A couple of things as per the login_(browser) method:

• As you have identified the Login button through:

  login = browser.find_element_by_xpath('/html/body/div[1]/div/button')
  

  I would suggest rather invoking send_keys("\n") take help of the onclick() event through login.click() to mock the clicking of Login button as follows:

  login = browser.find_element_by_xpath('/html/body/div[1]/div/button')
  login.click()
  

• Next when you identify the sidebar induce WebDriverWait for the element to be clickable as follows:

  WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.XPATH, '//*[@id="sidebar"]/ul/li[1]/a'))).click()
  

• As you mentioned your code code block works perfect in macOS 10.11 environment but throws the following error in the production environment (Linux) it is highly possible that different browsers renders the HTML DOM differently in different OS architecture. So instead of absolute xpath you must use relative xpath as follows:

  WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.XPATH, "//a[@attribute='value']"))).click()
  

A couple of things as per the initiate_webdriver() method:

• As per Getting Started with Headless Chrome the argument --disable-gpu is applicable only for Windows but not a valid configuration for Linux OS. So need o remove:

  option.add_argument('--disable-gpu')
  

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