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How to access popup login window in selenium using Python

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Many websites use sign-in using social media to make the login process easy for users. In most cases, if the button is clicked then a new popup window is opened where user has to enter their user credentials. Manually one can switch windows in a browser and enter the required credentials to log in. But in case of unattended web access using webdriver, the driver can not just switch the windows automatically. We need to change the window handle in the driver to enter the login credentials in the popup window. Selenium have the function to switch the window to access multiple windows using the same driver.
First, we have to get the current window handle from a webdriver which can be done by: 


We need to save it in order to get the to the current window handle. After the popup window appears we have to get the list of all the window handles available right now. 


Then we can get the window handle of the login page from this list and then switch the control. To switch window handle, use: 


After successful login we can use the same switch_to method to change control to the previous page. 
Note: To run this code selenium library and geckodriver for firefox is required. The installation of selenium can be done using Python third-party library installer pip. To install selenium run this command 

pip install selenium

For geckodriver, download the file and add it’s path to the OS PATH variable, so that it can be activated from anywhere in file directory.
Let’s see the code for login on using Facebook.


# import the libs
from selenium import webdriver
from time import sleep
# create the initial window
driver = webdriver.Firefox()
# go to the home page
# storing the current window handle to get back to dashboard
main_page = driver.current_window_handle
# wait for page to load completely
# click on the sign in tab
driver.find_element_by_xpath('//*[@id ="signin-link"]').click()
# click to log in using facebook
driver.find_element_by_xpath('//*[@id ="facebook-login-global"]/span').click()
# changing the handles to access login page
for handle in driver.window_handles:
    if handle != main_page:
        login_page = handle
# change the control to signin page        
# user input for email and password
print('Enter email id : ', end ='')
email = input().strip()
print('Enter password : ', end ='')
password = input().strip()
# enter the email
driver.find_element_by_xpath('//*[@id ="email"]').send_keys(email)
# enter the password
driver.find_element_by_xpath('//*[@id ="pass"]').send_keys(password)
# click the login button
driver.find_element_by_xpath('//*[@id ="u_0_0"]').click()
# change control to main page
# print user name 
name = driver.find_element_by_xpath('/html/body/div[4]/div/div[1]/header/div[2]/div/div/div/div/span').text
print('Your user name is : {}'.format(name))
# closing the window



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Last Updated : 14 Jul, 2022
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