Following the suggestion from https://askubuntu.com/questions/539498/where-does-chromedriver-install-to I was able to make it work like this:
-
Installed the chromium-chromedriver:
sudo apt-get install chromium-chromedriver -
Adding the path to the selenium line:
driver = webdriver.Chrome("/usr/lib/chromium-browser/chromedriver")
Note that this opens Chromium and not Chrome. Hope it was helpful.