When I'm executing this code with Selenium using Python:
from selenium import webdriver
from selenium.webdriver.common.by import By
import time
driver = webdriver.Chrome(executable_path=r'/Users/qa/Documents/Python/chromedriver')
The error occurred:
Traceback (most recent call last):
File "/Users/qa/Documents/Python/try.py", line 4, in <module>
driver = webdriver.Chrome(executable_path=r'/Users/qa/Documents/Python/chromedriver')
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/selenium/webdriver/chrome/webdriver.py", line 81, in __init__
desired_capabilities=desired_capabilities)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/selenium/webdriver/remote/webdriver.py", line 157, in __init__
self.start_session(capabilities, browser_profile)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/selenium/webdriver/remote/webdriver.py", line 252, in start_session
response = self.execute(Command.NEW_SESSION, parameters)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/selenium/webdriver/remote/webdriver.py", line 321, in execute
self.error_handler.check_response(response)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/selenium/webdriver/remote/errorhandler.py", line 242, in check_response
raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.SessionNotCreatedException: Message: session not created
from disconnected: unable to connect to renderer
(Session info: chrome=71.0.3578.98)
(Driver info: chromedriver=2.44.609545 (c2f88692e98ce7233d2df7c724465ecacfe74df5),platform=Mac OS X 10.13.6 x86_64)
Can someone help me? Thanks.
I had a similar error, first getting the error message:
selenium.common.exceptions.WebDriverException: Message: unknown error: Chrome failed to start: exited normally.
(unknown error: DevToolsActivePort file doesn't exist)
This was solved by adding options.add_argument("--remote-debugging-port=9230") to the ChromeOptions(). And the program runs once and I gained the same error message as above:
selenium.common.exceptions.SessionNotCreatedException: Message: session not created
from disconnected: unable to connect to renderer
(Session info: headless chrome=89.0.4389.114)
The problem here was that the chrome process does not close properly in the program so the process is still active on the debugging-port. To solve this problem close the active port sudo kill -9 $(sudo lsof -t -i:9230) and simply add the following lines to the end of the code:
driver.stop_client()
driver.close()
driver.quit()
Since I didn't find this answer anywhere, I hope it helps someone.
If you have options.add_argument("--remote-debugging-port=9222") change this to options.add_argument("--remote-debugging-port=9230")
or just simply Adding options.add_argument("--remote-debugging-port=9230") fixed in my case.
This error message...
selenium.common.exceptions.SessionNotCreatedException: Message: session not created
from disconnected: unable to connect to renderer
...implies that the ChromeDriver was unable to initiate/spawn a new WebBrowser i.e. Chrome Browser session.
You need to consider a fact:
As you are using Mac OS X the Key executable_path must be supported with a Value as :
'/Users/qa/Documents/Python/chromedriver'
So line will be:
driver = webdriver.Chrome(executable_path='/Users/qa/Documents/Python/chromedriver')
Note: The path itself is a raw path so you don't need to add the switch r and drop it.
Additionally, ensure that /etc/hosts on your system contains the following entry :
127.0.0.1 localhost.localdomain localhost
#or
127.0.0.1 localhost loopback
I ran into this same issue on a Windows 10 machine. What I had to do to resolve the issue was to open the Task Manager and exit all Python.exe processes, along with all Chrome.exe processes. After doing this,
I am facing the same error and add the close code solve the problem, the code finnaly block look like this:
#staticmethod
def fetch_music_download_url(music_name: str):
chrome_driver_service = Service(ChromeDriverManager(chrome_type=ChromeType.GOOGLE).install())
chrome_options = Options()
chrome_options.add_argument("--headless")
chrome_options.add_argument("--no-sandbox")
chrome_options.add_argument("--disable-gpu")
chrome_options.add_argument("--remote-debugging-port=9230")
driver = webdriver.Chrome(service=chrome_driver_service, options=chrome_options)
try:
driver.maximize_window()
driver.get('http://example.cn/music/?page=audioPage&type=migu&name=' + music_name)
driver.implicitly_wait(5)
// do some logic
except Exception as e:
logger.error(e)
finally:
// add the close logic
driver.stop_client()
driver.close()
driver.quit()
chrome_driver_service.stop()
the key is you should close the chrome service after using it by add chrome_driver_service.stop().hope this code could help other people facing the same issue.
This worked for me on WINDOWS OS
from selenium import webdriver
import time
from bs4 import BeautifulSoup
from selenium.webdriver.chrome.options import Options
options = Options()
options.add_argument('--headless')
options.add_argument('--disable-gpu')
driver = webdriver.Chrome(options=options)
driver.get(url)
time.sleep(3)
page = driver.page_source
driver.quit()
soup = BeautifulSoup(page, 'html.parser')
Hope you'd find this useful. I also used it more comprehensively here.
Related
I am having a terrible time getting text from shadow-root. I found several docs and it looks right to me, except i always get:
Traceback (most recent call last):
File "C:\python\vttest.py", line 29, in
print(driver.execute_script("return document.querySelector('vt-ui-shell').shadowRoot.querySelector('url-view').shadowRoot.querySelector('vt-ui-main-generic-report').shadowRoot.querySelector('vt-ui-url-card').shadowRoot.querySelector('vt-ui-generic-card').shadowRoot.querySelector('p')").text)
File "C:\Users\barberion.NATJ\AppData\Local\Programs\Python\Python38\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 634, in execute_script
return self.execute(command, {
File "C:\Users\barberion.NATJ\AppData\Local\Programs\Python\Python38\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 321, in execute
self.error_handler.check_response(response)
File "C:\Users\barberion.NATJ\AppData\Local\Programs\Python\Python38\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 242, in check_response
raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.JavascriptException: Message: javascript error: Cannot read properties of null (reading 'shadowRoot')
(Session info: chrome=96.0.4664.93)
import time
from selenium import webdriver
from selenium.webdriver.chrome.options import Options
from selenium.webdriver.common.keys import Keys
from selenium.webdriver import DesiredCapabilities # necessary in headless mode, need this library to accept ssl
from selenium.webdriver import Chrome
from selenium.webdriver.support.ui import WebDriverWait
#from selenium.webdriver.support.select import Select
capabilities = DesiredCapabilities.CHROME.copy()
capabilities['acceptSslCerts'] = True
capabilities['acceptInsecureCerts'] = True
opts = Options()
#opts.headless = True # comment this out to get out of headless
#opts.add_argument("--window-size=1400x1400")
opts.add_argument("--enable-javascript")
opts.add_argument("--start-maximized")
opts.add_argument('--disable-gpu')
searchvt=input("Enter URL: ")
driver = Chrome(options=opts,desired_capabilities=capabilities,executable_path='C:/python/chromedriver.exe')
driver.get('https://www.virustotal.com/gui/home/url')
url='//*[#id="view-container"]/home-view'
time.sleep(.5)
driver.find_element_by_xpath(url).send_keys(searchvt)
time.sleep(.5)
driver.find_element_by_xpath(url).send_keys(Keys.RETURN)
driver.maximize_window()
driver.set_page_load_timeout(5)
time.sleep(3)
print(driver.execute_script("return document.querySelector('vt-ui-shell').shadowRoot.querySelector('url-view').shadowRoot.querySelector('vt-ui-main-generic-report').shadowRoot.querySelector('vt-ui-url-card').shadowRoot.querySelector('vt-ui-generic-card').shadowRoot.querySelector('p')").text)
my error must be somewhere in the print :( any help is most appreciated!
Edit:
To be more specific, I want to submit an URL or domain to virustotal, and then read the result text on top of page. If you use MSN.com the text I want is on top where it says "No security vendors flagged this URL as malicious"
If you update to Selenium 4.0 and use a Chromium browser v96+ you can use the new shadow_root property in Python Selenium and avoid using JavaScript entirely.
This is a working example:
driver.get('http://watir.com/examples/shadow_dom.html')
shadow_host = driver.find_element(By.CSS_SELECTOR, '#shadow_host')
shadow_root = shadow_host.shadow_root
shadow_content = shadow_root.find_element(By.CSS_SELECTOR, '#shadow_content')
assert shadow_content.text == 'some text'
Source: https://titusfortner.com/2021/11/22/shadow-dom-selenium.html
My shadow DOMS were just out of order. once i modified print to:
print(driver.execute_script("return document.querySelector('url-view').shadowRoot.querySelector('vt-ui-url-card').shadowRoot.querySelector('vt-ui-generic-card').querySelector('p')").text)
everything functioned as expected.
Project: saving all the URLs/titles from https://theuselessweb.com/
Code to test (only 3 pages and print not save):
from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.support.ui import WebDriverWait
from time import sleep
PATH = r"C:\Users\XXX\Documents\scraping\chromedriver.exe"
driver = webdriver.Chrome(PATH)
driver.get("https://theuselessweb.com/")
driver.switch_to.window(driver.window_handles[-1])
button = driver.find_element_by_id("button")
for i in range(3):
button.click()
sleep(2)
driver.switch_to.window(driver.window_handles[-1])
print(driver.current_url)
print(driver.title)
driver.close()
Error(s):
DevTools listening on ws://127.0.0.1:60235/devtools/browser/a5ea4ab0-fba6-4a34-b0ee-8926876c554f
[11636:4168:0626/143411.535:ERROR:device_event_log_impl.cc(214)] [14:34:11.535] USB: usb_device_handle_win.cc:1058 Failed to read descriptor from node connection: Ein an das System angeschlossenes Gerõt funktioniert nicht. (0x1F)
[11636:4168:0626/143411.552:ERROR:device_event_log_impl.cc(214)] [14:34:11.552] USB: usb_device_handle_win.cc:1058 Failed to read descriptor from node connection: Ein an das System angeschlossenes Gerõt funktioniert nicht. (0x1F)
[11636:4168:0626/143411.555:ERROR:device_event_log_impl.cc(214)] [14:34:11.555] USB: usb_device_handle_win.cc:1058 Failed to read descriptor from node connection: Ein an das System angeschlossenes Gerõt funktioniert nicht. (0x1F)
https://thatsthefinger.com/ #this is what I want
The finger, deal with it. #this is what I want
Traceback (most recent call last):
File "C:\Users\XXX\Documents\scraping\programs\linkscraping.py", line 16, in <module>
button.click()
File "C:\Users\XXX\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\selenium\webdriver\remote\webelement.py", line 80, in click
self._execute(Command.CLICK_ELEMENT)
File "C:\Users\XXX\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\selenium\webdriver\remote\webelement.py", line 633, in _execute
return self._parent.execute(command, params)
File "C:\Users\XXX\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\selenium\webdriver\remote\webdriver.py", line 321, in execute
self.error_handler.check_response(response)
File "C:\Users\XXX\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\selenium\webdriver\remote\errorhandler.py", line 242, in check_response
raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.NoSuchWindowException: Message: no such window: target window already closed
from unknown error: web view not found
(Session info: chrome=91.0.4472.124)
It prints out the URL and title of the first website and then crashes. Also everytime i run the driver.get(ANYURL) command, it opens the link AND the Chrome settings (chrome://settings/triggeredResetProfileSettings). Maybe this messes it up, anyway it would be really helpful if i could get rid of this unwanted window too.
Here is a solution to the problem. it still opens every link but since it's headless it's not visible to the user.
In this case, X is the number of random websites you want to extract
The code opens the site and then clicks the button the number of times you want in accordance with x and then goes on each one and logs the results. At the end, it closes Chrome.
from selenium.webdriver.chrome.options import Options
from selenium import webdriver
from webdriver_manager.chrome import ChromeDriverManager
options = Options()
options.headless = True
driver = webdriver.Chrome(
ChromeDriverManager().install(),
options=options
)
x = 10
driver.get('https://theuselessweb.com/')
button = button = driver.find_element_by_id("button")
for i in range(x):
button.click()
for i in range(x):
driver.switch_to.window(driver.window_handles[i+1])
print(driver.current_url)
print(driver.title)
driver.quit()
When I am trying to use --user-data-dir for the current user to start Chrome using Selenium I am getting an error as:
File "C:\Program Files (x86)\Python\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 321, in execute
self.error_handler.check_response(response)
File "C:\Program Files (x86)\Python\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 242, in check_response
raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.InvalidArgumentException: Message: invalid argument: user data directory is already in use, please specify a unique value for --user-data-dir argument, or don't use --user-data-dir
How can I fix this error?
This error message...
selenium.common.exceptions.InvalidArgumentException: Message: invalid argument: user data directory is already in use, please specify a unique value for --user-data-dir argument, or don't use --user-data-dir
...implies that the ChromeDriver was unable to initiate the new Chrome Browser session using the specified user data directory as it was already in use.
This error can be reproduced as follows:
Code Block:
from selenium import webdriver
import getpass
options = webdriver.ChromeOptions()
options.add_argument("start-maximized")
options.add_argument(r"--user-data-dir=C:\Users\{}\AppData\Local\Google\Chrome\User Data".format(getpass.getuser()))
driver = webdriver.Chrome(options=options, executable_path=r'C:\WebDrivers\chromedriver.exe')
driver.get("https://www.google.com/")
Complete relevant traceback:
[12148:21412:0204/035557.731:ERROR:cache_util_win.cc(21)] Unable to move the cache: Access is denied. (0x5)
[12148:21412:0204/035557.731:ERROR:cache_util.cc(141)] Unable to move cache folder C:\Users\Soma Bhattacharjee\AppData\Local\Google\Chrome\User Data\ShaderCache\GPUCache to C:\Users\Soma Bhattacharjee\AppData\Local\Google\Chrome\User Data\ShaderCache\old_GPUCache_000
[12148:21412:0204/035557.731:ERROR:disk_cache.cc(178)] Unable to create cache
[12148:21412:0204/035557.731:ERROR:shader_disk_cache.cc(605)] Shader Cache Creation failed: -2
Opening in existing browser session.
Traceback (most recent call last):
File "C:\Users\Soma Bhattacharjee\Desktop\Debanjan\PyPrograms\yandex_ru.py", line 18, in <module>
driver = webdriver.Chrome(options=options, executable_path=r'C:\WebDrivers\chromedriver.exe')
File "C:\Python\lib\site-packages\selenium\webdriver\chrome\webdriver.py", line 81, in __init__
desired_capabilities=desired_capabilities)
File "C:\Python\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 157, in __init__
self.start_session(capabilities, browser_profile)
File "C:\Python\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 252, in start_session
response = self.execute(Command.NEW_SESSION, parameters)
File "C:\Python\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 321, in execute
self.error_handler.check_response(response)
File "C:\Python\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 242, in check_response
raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.InvalidArgumentException: Message: invalid argument: user data directory is already in use, please specify a unique value for --user-data-dir argument, or don't use --user-data-dir
Analysis
The error stack trace clearly complains of Access is denied as the program was unable to move the cache folder ..\ShaderCache\GPUCache to ..\ShaderCache\old_GPUCache_000. hence the creation of cache failed and subsequently creation of Shader Cache Creation failed. Though these issues raises the InvalidArgumentException but forcefully able to open a new window within the existing Chrome Browser Session.
Though the error is thrown, still the new Chrome window gets initiated but remains attached with the already opened Chrome session but the new window can't be controlled by the WebDriver instance. Hence you see data:, in the url bar.
Solution
You need to take care of a couple of things:
If you are using the Default Chrome Profile to access webpages for your other work on the same Test Machine, you shouldn't set user-data-dir as the User Data as it remains locked by the other Chrome process you have initiated manually.
In the above scenario you need to create and use another Chrome Profile and you can find a detailed discussion in How to open a Chrome Profile through Python
If you are executing your tests in a isolated test system, you can set user-data-dir as ..\User Data\Default to access the Default Chrome Profile.
In the above scenario you need to create and use another Chrome Profile and you can find a detailed discussion in How to use Chrome Profile in Selenium Webdriver Python 3
However as per best practices you must always create a new Chrome Profile to execute your tests as the Default Chrome Profile may contain Extensions, Bookmarks, Browsing History, etc, and may not load properly.
You can find a detailed discussion in How to open a Chrome Profile through --user-data-dir argument of Selenium
The simplest and easiest fix is; to clear existing opened chrome driver: Here're the steps: type task manager to the Spotlight Search/in the Search Window at the task bar or using other ways accessing to task manager. When the Task Manager Wizard/window pops up, search chromedriver, right click on it and then click "End Task". That's it. It's not an eternal fix. Once you opened chrome browser multiple times, you got to do the same step avoid the issue. Hope this helps as am looking for a stable fix.
Just had the same problem trying to skip the login process and the solution was to close the already openned browser.
As Tes answer mentioned, I opened up the Windows Task Manager and I closed all the chrome.exe and chromedriver.exe processes and it worked!!!
I used these configurations to open Google Chrome using my Chrome Profile:
options = webdriver.ChromeOptions()
options.add_argument('user-data-dir=C:\\Users\\my_user\\AppData\\Local\\Google\\Chrome\\User Data')
driver = webdriver.Chrome(executable_path='./chromedriver.exe', options=options)
System.setProperty("webdriver.chrome.driver", "C://Users//Mhamed//Desktop//chromedriver.exe");
ChromeOptions options = new ChromeOptions();
options.setExperimentalOption("useAutomationExtension", false);
WebDriver driver = new ChromeDriver(options);
driver.manage().window().fullscreen();
driver.get("");
When I am trying to use --user-data-dir for the current user to start Chrome using Selenium I am getting an error as:
File "C:\Program Files (x86)\Python\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 321, in execute
self.error_handler.check_response(response)
File "C:\Program Files (x86)\Python\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 242, in check_response
raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.InvalidArgumentException: Message: invalid argument: user data directory is already in use, please specify a unique value for --user-data-dir argument, or don't use --user-data-dir
How can I fix this error?
This error message...
selenium.common.exceptions.InvalidArgumentException: Message: invalid argument: user data directory is already in use, please specify a unique value for --user-data-dir argument, or don't use --user-data-dir
...implies that the ChromeDriver was unable to initiate the new Chrome Browser session using the specified user data directory as it was already in use.
This error can be reproduced as follows:
Code Block:
from selenium import webdriver
import getpass
options = webdriver.ChromeOptions()
options.add_argument("start-maximized")
options.add_argument(r"--user-data-dir=C:\Users\{}\AppData\Local\Google\Chrome\User Data".format(getpass.getuser()))
driver = webdriver.Chrome(options=options, executable_path=r'C:\WebDrivers\chromedriver.exe')
driver.get("https://www.google.com/")
Complete relevant traceback:
[12148:21412:0204/035557.731:ERROR:cache_util_win.cc(21)] Unable to move the cache: Access is denied. (0x5)
[12148:21412:0204/035557.731:ERROR:cache_util.cc(141)] Unable to move cache folder C:\Users\Soma Bhattacharjee\AppData\Local\Google\Chrome\User Data\ShaderCache\GPUCache to C:\Users\Soma Bhattacharjee\AppData\Local\Google\Chrome\User Data\ShaderCache\old_GPUCache_000
[12148:21412:0204/035557.731:ERROR:disk_cache.cc(178)] Unable to create cache
[12148:21412:0204/035557.731:ERROR:shader_disk_cache.cc(605)] Shader Cache Creation failed: -2
Opening in existing browser session.
Traceback (most recent call last):
File "C:\Users\Soma Bhattacharjee\Desktop\Debanjan\PyPrograms\yandex_ru.py", line 18, in <module>
driver = webdriver.Chrome(options=options, executable_path=r'C:\WebDrivers\chromedriver.exe')
File "C:\Python\lib\site-packages\selenium\webdriver\chrome\webdriver.py", line 81, in __init__
desired_capabilities=desired_capabilities)
File "C:\Python\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 157, in __init__
self.start_session(capabilities, browser_profile)
File "C:\Python\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 252, in start_session
response = self.execute(Command.NEW_SESSION, parameters)
File "C:\Python\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 321, in execute
self.error_handler.check_response(response)
File "C:\Python\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 242, in check_response
raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.InvalidArgumentException: Message: invalid argument: user data directory is already in use, please specify a unique value for --user-data-dir argument, or don't use --user-data-dir
Analysis
The error stack trace clearly complains of Access is denied as the program was unable to move the cache folder ..\ShaderCache\GPUCache to ..\ShaderCache\old_GPUCache_000. hence the creation of cache failed and subsequently creation of Shader Cache Creation failed. Though these issues raises the InvalidArgumentException but forcefully able to open a new window within the existing Chrome Browser Session.
Though the error is thrown, still the new Chrome window gets initiated but remains attached with the already opened Chrome session but the new window can't be controlled by the WebDriver instance. Hence you see data:, in the url bar.
Solution
You need to take care of a couple of things:
If you are using the Default Chrome Profile to access webpages for your other work on the same Test Machine, you shouldn't set user-data-dir as the User Data as it remains locked by the other Chrome process you have initiated manually.
In the above scenario you need to create and use another Chrome Profile and you can find a detailed discussion in How to open a Chrome Profile through Python
If you are executing your tests in a isolated test system, you can set user-data-dir as ..\User Data\Default to access the Default Chrome Profile.
In the above scenario you need to create and use another Chrome Profile and you can find a detailed discussion in How to use Chrome Profile in Selenium Webdriver Python 3
However as per best practices you must always create a new Chrome Profile to execute your tests as the Default Chrome Profile may contain Extensions, Bookmarks, Browsing History, etc, and may not load properly.
You can find a detailed discussion in How to open a Chrome Profile through --user-data-dir argument of Selenium
The simplest and easiest fix is; to clear existing opened chrome driver: Here're the steps: type task manager to the Spotlight Search/in the Search Window at the task bar or using other ways accessing to task manager. When the Task Manager Wizard/window pops up, search chromedriver, right click on it and then click "End Task". That's it. It's not an eternal fix. Once you opened chrome browser multiple times, you got to do the same step avoid the issue. Hope this helps as am looking for a stable fix.
Just had the same problem trying to skip the login process and the solution was to close the already openned browser.
As Tes answer mentioned, I opened up the Windows Task Manager and I closed all the chrome.exe and chromedriver.exe processes and it worked!!!
I used these configurations to open Google Chrome using my Chrome Profile:
options = webdriver.ChromeOptions()
options.add_argument('user-data-dir=C:\\Users\\my_user\\AppData\\Local\\Google\\Chrome\\User Data')
driver = webdriver.Chrome(executable_path='./chromedriver.exe', options=options)
System.setProperty("webdriver.chrome.driver", "C://Users//Mhamed//Desktop//chromedriver.exe");
ChromeOptions options = new ChromeOptions();
options.setExperimentalOption("useAutomationExtension", false);
WebDriver driver = new ChromeDriver(options);
driver.manage().window().fullscreen();
driver.get("");
Example code:
from selenium import webdriver
browser = webdriver.Chrome()
browser.minimize_window()
Returns the following exception:
File "myScript.py", line 4, in <module>
browser.minimize_window()
File "C:\Python27\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 738, in minimize_window
self.execute(Command.MINIMIZE_WINDOW)
File "C:\Python27\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 312, in execute
self.error_handler.check_response(response)
File "C:\Python27\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 208, in check_response
raise exception_class(value)
selenium.common.exceptions.WebDriverException: Message: unknown command: session/8252be05ea571a2c623450db8ba097c0/window/minimize
Adding the line
print dir(browser)
Shows that minimize_window() is a listed function of browser. So what gives? Is this functionality just not compatible with Chrome?
Python 2.7
This error message...
selenium.common.exceptions.WebDriverException: Message: unknown command: session/8252be05ea571a2c623450db8ba097c0/window/minimize
...implies that the call to minimize_window() function wasn't recoznized.
You spotted it correct. As now WebDriver Specification is a W3C Recommendation the function defination for maximizing the window was adjusted as per the W3C Recommended Specification as follows:
def maximize_window(self):
"""
Maximizes the current window that webdriver is using
"""
params = None
command = Command.W3C_MAXIMIZE_WINDOW
if not self.w3c:
command = Command.MAXIMIZE_WINDOW
params = {'windowHandle': 'current'}
self.execute(command, params)
But, the function defination for minimizing the window is still pending to be W3C compliant within the Python Client as is still defined as:
def minimize_window(self):
"""
Invokes the window manager-specific 'minimize' operation
"""
self.execute(Command.MINIMIZE_WINDOW)
Hence you see the error:
unknown command: session/8252be05ea571a2c623450db8ba097c0/window/minimize
Solution
As the default/common practice is to open the browser in maximized mode, while Test Execution is In Progress minimizing the browser would be against the best practices as Selenium may loose the focus over the Browsing Context and an exception may raise during the Test Execution. However, Selenium's python client does have a minimize_window() method which eventually pushes the Chrome Browsing Context effectively to the background.
Python:
from selenium import webdriver
options = webdriver.ChromeOptions()
options.add_argument("--start-maximized")
options.add_experimental_option("excludeSwitches", ["enable-automation"])
options.add_experimental_option('useAutomationExtension', False)
driver = webdriver.Chrome(chrome_options=options, executable_path=r'C:\Utility\BrowserDrivers\chromedriver.exe')
driver.get('https://www.google.co.in')
driver.minimize_window()
Java Solution:
driver.navigate().to("https://www.google.com/");
Point p = driver.manage().window().getPosition();
Dimension d = driver.manage().window().getSize();
driver.manage().window().setPosition(new Point((d.getHeight()-p.getX()), (d.getWidth()-p.getY())));
Just tried to downgrade my chromedriver version to 2.25 and got...
selenium.common.exceptions.WebDriverException: Message: unknown command: session/f35727d2129895c35b24deeb7090eb26/window/minimize
with the same code.
But if to use the last (2.43) it work just fine
So just upgrade to up-to-date chromedriver version to be able to use minimize_window method