Open chrome with default user profile using python and selenium on mac

Question

I am trying to get Selenium to open Chrome just as if I was opening it myself, i.e. I should be logged into my accounts like Facebook.

I have the following code:

def startChrome():
    options = webdriver.ChromeOptions() 
    options.add_argument("user-data-dir=/Users/alexiseggermont/Library/Application Support/Google/Chrome/Default/")
    driver = webdriver.Chrome(chrome_options=options)
    driver.set_page_load_timeout(60)
    return driver

driver = startChrome()
url = 'https://www.facebook.com'
driver.get(url)

However this gets me to Facebook without being logged in. I have checked chrome://version and the profile URL is in fact correct. What am I doing wrong?

Using Python 3, Chrome Version 63.0.3239.84, MacOS High Sierra

Are you sure, when you open Chrome normally, you are logged into Facebook? — ubadub
– ubadub, Commented Dec 23, 2017 at 19:53

410 gone · Accepted Answer · 2018-01-02 14:55:33Z

10

Remove the Default/ from the end of your path

options.add_argument("user-data-dir=/Users/alexiseggermont/Library/Application Support/Google/Chrome/")

On a PC, it would typically be something like:

options.add_argument('user-data-dir=C:/Users/{USERNAME}/AppData/Local/Google/Chrome/User Data')

You'll need to check you've got compatible versions of chromedriver and chrome - the easiest way to do that, is to check that both are up to date.

If it crashes immediately on opening, check the chromedriver help page. Maybe try disabling all extensions, to see if that helps.

edited Jan 2, 2018 at 14:55

answered Dec 31, 2017 at 14:27

410 gone

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5 Comments

Alexis Eggermont Over a year ago

Thanks. That seems to open a new window with the right profile, but then it crashes (Message: unknown error: Chrome failed to start: exited abnormally (Driver info: chromedriver=2.34.522932 (4140ab217e1ca1bec0c4b4d1b148f3361eb3a03e),platform=Mac OS X 10.13.2 x86_64))

410 gone Over a year ago

Ah, I don't really know much about Macs. Is there anything here that helps: sites.google.com/a/chromium.org/chromedriver/help/… . And maybe disable all extensions, see if that helps.

Aqua 4 Over a year ago

Linux ubuntu: '/home/<usr_name>/.config/google-chrome/Default'

ahsan Over a year ago

For me, it works chrome_options.add_argument("user-data-dir=/Users/username/Library/Application Support/Google/Chrome/profileName")

user15296247 Over a year ago

this also works for me, and i can start more than one webdriver with it, but it does give an error.

Maurice · Accepted Answer · 2018-10-20 08:35:18Z

4

As an addition to EnergyNumbers' answer, you also have to make sure that you've actually quit chrome before launching your script.

In my case I constantly got the error Chrome failed to start: exited abnormally (unknown error: DevToolsActivePort file doesn't exist)

But that instantly disappeared when I quit chrome before launching the script. Apparantly, no 2 instances of the same profile can be opened at the same time.

answered Oct 20, 2018 at 8:35

Maurice

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