I want to run selenium through chromium. I wrote this code:
from selenium import webdriver from selenium.webdriver.chrome.options import Options options = Options() options.add_argument("start-maximized") options.add_argument("disable-infobars") options.add_argument("--disable-extensions") options.add_argument("--disable-gpu") options.add_argument("--disable-dev-shm-usage") options.add_argument("--no-sandbox") options.binary_location = "/snap/bin/chromium" driver = webdriver.Chrome(chrome_options=options)
But this code throws an error:
selenium.common.exceptions.WebDriverException: Message: unknown error: DevToolsActivePort file doesn't exist Stacktrace: #0 0x55efd7355a23 <unknown> #1 0x55efd6e20e18 <unknown> #2 0x55efd6e46e12 <unknown>
The chromodriver of the correct version is in usr/bin. What am I doing wrong?
A common cause for Chrome to crash during startup is running Chrome as
administrator) on Linux. While it is possible to work around this issue by passing
--no-sandboxflag when creating your WebDriver session, such a configuration is unsupported and highly discouraged. You need to configure your environment to run Chrome as a regular user instead.
However you need to take careof a couple of things:
chrome_options is deprecated, use
driver = webdriver.Chrome(options=options)
You can find a couple of relevant detailed discussions in:
I solved the problem by reinstalling chromium through apt
sudo apt install chromium-browser (before that it was installed through snap). My working code looks like this
options = Options() options.add_argument("start-maximized") options.add_argument("disable-infobars") options.add_argument("--disable-extensions") options.add_argument("--disable-dev-shm-usage") options.add_argument("--no-sandbox") if headless: options.add_argument('--headless') options.binary_location = "/usr/bin/chromium-browser" self.driver = webdriver.Chrome(options=options)
I was getting this error after upgrading my chromedriver version to 86 and Python runtime to 3.8 from 3.6 on AWS Lambda (Amazon Linux 2) run in a docker container. I played whack a mole for hours with chrome/chromedriver starting issues.
Eventually I found this actively maintained min miplementation of python+selenium+docker. https://github.com/umihico/docker-selenium-lambda/ The setup in their Dockerfile and test.py chrome_options worked.
In ubuntu, chromium is installed using snap by default, and it breaks selenium.
The following fixed the problem:
sudo snap remove chromium
Then installing the proprietary chrome from https://www.google.com/chrome/
(The official chromium deb package just contains a snap).
This is because you have specified
--user-data-dir and maybe a
--profile-directory, and there is already a running Chrome instance which would have created a
DevToolsActivePort in your specified user data dir. Thus selenium will be unable to spawn a new browser instance.
My solution is to copy the
Profile 1 folders (which are the two profiles I used in my case) under
%LOCALAPPDATA%MicrosoftEdgeUser Data to my newly created
D:user_data, and specify
--user-data-dir to be
D:user_data. This way I have a copy of user data for selenium only.
Hope this will solve your problem.