Confirmed, it looks like python3-selenium is incompatible with the updated chromium-webdriver package in 18.04. As a workaround, the selenium package from PyPI (pip3 install selenium) does work.
** Changed in: python-selenium (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1833448 Title: selenium.common.exceptions.InvalidArgumentException: Message: invalid argument: value must be a non-negative integer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/python-selenium/+bug/1833448/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs