Error while installing chrome extension through Python - selenium

Question

I am trying to install chrome extension using Python Selenium. When I click Add to chrome button a pop up(don't know whether it is a java scripted) is generated asking: "Add extension", "Cancel". I want to click "Add extension" but I am getting following error:

selenium.common.exceptions.NoAlertPresentException: Message: no alert open

My code:

from selenium import webdriver
import time

driver=webdriver.Chrome()
driver.implicitly_wait(30)
driver.get("https://chrome.google.com/webstore/detail/buyhatke/jaehkpjddfdgiiefcnhahapilbejohhj?hl=en")
time.sleep(15)
element=driver.find_element_by_css_selector("body > div.F-ia-k.S-ph.S-Rc-qa > div.h-F-f-k.F-f-k > div > div > div.e-f-o > div.h-e-f-Ra-c.e-f-oh-Md-zb-k > 
div.dd-Va.g-c-wb.g-eg-ua-Uc-c-za.g-c-Oc-td-jb-oa.g-c")
element.click()
alert = driver.switch_to.alert
alert.accept()

help me to install it.

Updated code:

from selenium import webdriver
from selenium.webdriver.chrome.options import Options
from selenium.webdriver.common.desired_capabilities import DesiredCapabilities
import os

executable_path = "C:\\Users\\SACHIN\\AppData\\Local\\Programs\\Python\\Python36\\chromedriver"
os.environ["webdriver.chrome.driver"] = executable_path

chrome_options = Options()
chrome_options.add_extension("C:\\Users\\SACHIN\\AppData\\Local\\Google\\chrome\\User Data\\Default\\Extensions\\jaehkpjddfdgiiefcnhahapilbejohhj\\
3.4.143_0")

driver = webdriver.Chrome(executable_path=executable_path,chrome_options=chrome_options)
driver.get("http://stackoverflow.com")
driver.quit()

demouser123 demouser123 · Accepted Answer · 2017-06-05T15:20:31

This is because the download option pop up that you are trying to select using switch_to.alert is not actually a JS alert pop up. You can not select is using Selenium's switch_to methods. You need to use the DesiredCapabilities class to select this option and then use it in your code.

As per the ChromeDriver documentation, given here, please use the packed( the one with .crx extension ) or unpacked extension file (directory containing the extension, including a manifest.json file) and load it using DesiredCapabilities. This can be done using

     from selenium.webdriver.chrome.options import Options

     executable_path = "path_to_webdriver"
     os.environ["webdriver.chrome.driver"] = executable_path

     chrome_options = Options()
     chrome_options.add_extension('path_to_extension')

     driver = webdriver.Chrome(executable_path=executable_path,chrome_options=chrome_options)
     driver.get("http://stackoverflow.com")
     driver.quit()

Error while installing chrome extension through Python - selenium

1 Answers