Running Selenium WebDriver python bindings in chrome
I ran into a problem while working with Selenium. For my project, I have to use Chrome. However, I can't connect to that browser after launching it with Selenium.
For some reason, Selenium can't find Chrome by itself. This is what happens when I try to launch Chrome without including a path:
Traceback (most recent call last):
File "./obp_pb_get_csv.py", line 73, in <module>
browser = webdriver.Chrome() # Get local session of chrome
File "/usr/lib64/python2.7/site-packages/selenium/webdriver/chrome/webdriver.py", line 46, in __init__
self.service.start()
File "/usr/lib64/python2.7/site-packages/selenium/webdriver/chrome/service.py", line 58, in start
and read up at http://code.google.com/p/selenium/wiki/ChromeDriver")
selenium.common.exceptions.WebDriverException: Message: 'ChromeDriver executable needs to be available in the path. Please download from http://code.google.com/p/selenium/downloads/list and read up at http://code.google.com/p/selenium/wiki/ChromeDriver'
To solve this problem, I then included the Chromium path in the code that launches Chrome. However, the interpreter fails to find a socket to connect to:
Traceback (most recent call last):
File "./obp_pb_get_csv.py", line 73, in <module>
browser = webdriver.Chrome('/usr/bin/chromium') # Get local session of chrome
File "/usr/lib64/python2.7/site-packages/selenium/webdriver/chrome/webdriver.py", line 46, in __init__
self.service.start()
File "/usr/lib64/python2.7/site-packages/selenium/webdriver/chrome/service.py", line 64, in start
raise WebDriverException("Can not connect to the ChromeDriver")
selenium.common.exceptions.WebDriverException: Message: 'Can not connect to the ChromeDriver'
I also tried solving the problem by launching chrome with:
chromium --remote-shell-port=9222
However, this did not work either.
PS. Here's some information about my system:
www-client: chromium 15.0.874.121 dev-lang: python 2.7.2-r3 Selenium 2.11.1 OS: GNU/Linux Gentoo Kernel 3.1.0-gentoo-r1
You need to make sure the standalone ChromeDriver binary (which is different than the Chrome browser binary) is either in your path or available in the webdriver.chrome.driver environment variable.
see http://code.google.com/p/selenium/wiki/ChromeDriver for full information on how wire things up.
Edit:
Right, seems to be a bug in the Python bindings wrt reading the chromedriver binary from the path or the environment variable. Seems if chromedriver is not in your path you have to pass it in as an argument to the constructor.
import os
from selenium import webdriver
chromedriver = "/Users/adam/Downloads/chromedriver"
os.environ["webdriver.chrome.driver"] = chromedriver
driver = webdriver.Chrome(chromedriver)
driver.get("http://stackoverflow.com")
driver.quit()
For Linux
-
Check you have installed latest version of chrome brwoser->
chromium-browser -version
-
If not, install latest version of chrome
sudo apt-get install chromium-browser
-
get appropriate version of chrome driver from here
-
Unzip the chromedriver.zip
-
Move the file to
/usr/bin
directorysudo mv chromedriver /usr/bin
-
Goto
/usr/bin
directorycd /usr/bin
-
Now, you would need to run something like
sudo chmod a+x chromedriver
to mark it executable. -
finally you can execute the code.
from selenium import webdriver driver = webdriver.Chrome() driver.get("http://www.google.com") print driver.page_source.encode('utf-8') driver.quit()
Mac OSX only
An easier way to get going (assuming you already have homebrew installed, which you should, if not, go do that first and let homebrew make your life better) is to just run the following command:
brew install chromedriver
That should put the chromedriver in your path and you should be all set.
For windows
Download ChromeDriver from this direct link OR get the latest version from this page.
Paste the chromedriver.exe
file in your C:\Python27\Scripts
folder.
This should work now:
from selenium import webdriver
driver = webdriver.Chrome()