a couple of things

[sildeag]

1. from __future__ import print_function is required for python2 (in particular 2.7.16).
2. I used Firefox rather than Chrome and found https://askubuntu.com/questions/870530/how-to-install-geckodriver-in-ubuntu helpful. A couple of source code lines required Chrome to be replaced with Firefox and line 20 became
   driver = webdriver.Firefox(options=wd_options).
3. python3 (in particular 3.7.3) worked but the requirements could be changed from == to >= as I am using python-dateutil version 2.8.0.