Selenium :: Python :: Chrome Extension

Question

I am trying to load a google chrome extension with Selenium WebDriver.

But I receive an error OSError: Path to the extension doesn't exist.

Here is the code I am using:

from selenium import webdriver
from selenium.webdriver.chrome.options import Options
import time
from os import path

path = "path to chrome driver"
chrome_options = webdriver.ChromeOptions()
chrome_options.add_extension('Adblock-Plus_v1.12.4_0.crx') # ALTERNATIVE 0
driver = webdriver.Chrome(path, chrome_options=chrome_options)

After reading various similar questions on this site I tried the following two alternatives:

# Alternative 1
chrome_options.add_extension('~/Library/Application\ Support/Google/Chrome/Default/Extensions/[Extension ID]/Adblock-Plus_v1.12.4_0.crx')

#Alternative 2
chrome_options.add_extension(path.abspath("Adblock-Plus_v1.12.4_0.crx"))

But none of them work. Alternative 1 gives same error message as the original code whereas Alternative 2 gives error AttributeError: 'str' object has no attribute 'abspath'

Does anyone have a clue what I could be doing differently?

Have you tried driver = webdriver.Chrome(chrome_options=chrome_options) ? It works for me. — HenryM
– HenryM, Commented Mar 7, 2017 at 11:47
Thanks for your reply. Yes, this is what I am doing in the last line of the code...isn't it? — FredMaster
– FredMaster, Commented Mar 7, 2017 at 12:40
No, you're including a path. You're also importing path and then overwriting it. — HenryM
– HenryM, Commented Mar 7, 2017 at 12:42
Ok, understand what you mean. Tried this out but I do get the same error message OSError: Path to the extension doesn't exist — FredMaster
– FredMaster, Commented Mar 7, 2017 at 12:55
Have you installed the webdriver for Chrome? You can find it here. sites.google.com/a/chromium.org/chromedriver/downloads — HenryM
– HenryM, Commented Mar 7, 2017 at 13:12

crookedleaf · Accepted Answer · 2017-03-07 19:23:21Z

3

More thank likely, this is because python is referencing the wrong path with what would normally be the home directory shortcut of ~/ in the path. Python will try and run the file from the current directory, so for example if your code is in ~/Dev/testproject, and the code being called above is really trying to run /home/username/Dev/testproject/~/Library/Application Support/Google/Chrome/Default/Extensions/[Extension ID]/Adblock-Plus_v1.12.4_0.crx

Try using the following:

from selenium import webdriver
from selenium.webdriver.chrome.options import Options
import time
import os

chromedriver = "path to chrome driver"
chrome_options = webdriver.ChromeOptions()


# choose one of the following 2:
chrome_options.add_extension(os.path.expanduser('~/Library/Application\ Support/Google/Chrome/Default/Extensions/[Extension ID]/Adblock-Plus_v1.12.4_0.crx'))  # Option 1: if your extension is not also in your project folder
chrome_options.add_extension(os.path.abspath('Adblock-Plus_v1.12.4_0.crx'))  # Option 2: if your extension IS in your project folder


driver = webdriver.Chrome(chromedriver, chrome_options=chrome_options)

EDIT: avoid declaring a variable named path since you are importing path from os. This is why you are getting the error on Alternative #2.

edited Mar 7, 2017 at 19:23

answered Mar 7, 2017 at 19:15

crookedleaf

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1 Comment

FredMaster Over a year ago

Thanks, crookedleaf. It is working now. Regarding path....could have seen this myself. Sometimes I just don't see the obvious when debugging ;-)

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