because the full solution was spread across a few different posts, @easyt50 was kind enough to put all of the necessary commands together:
sudo apt-get install python-pip python-dev lsscsi
sudo apt install python-setuptools python-wheel
sudo pip install py_sg
cd ~; wget https://raw.githubusercontent.com/evox95/wdpassport-utils/master/wdpassport-utils.py
chmod +x /home/user/wdpassport-utils.py
Then
Plug in your password protected drive.
Run in terminal this command and enter password:
sudo python /home/user/wdpassport-utils.py
sudo ~/wdpassport-utils.py -u