TypeError: get() got an unexpected keyword argument 'fallback'

[gbmhunter]

I am using the latest version of KiBoM (master branch as of today) with KiCAD v5.1.6 on Ubuntu 18.04.

I am invoking KiBoM using the KiCAD GUI. The first time (when no bom.ini is present) it works fine. However when I click Generate a second time it fails with the following error (I have made no bom.ini modifications):

Error messages:
Traceback (most recent call last):
  File "/home/ghunter/repos/kibom/KiBOM_CLI.py", line 28, in <module>
    main()
  File "/home/ghunter/repos/kibom/kibom/__main__.py", line 175, in main
    pref.Read(config_file)
  File "/home/ghunter/repos/kibom/kibom/preferences.py", line 147, in Read
    fallback=self.outputFileName)
TypeError: get() got an unexpected keyword argument 'fallback'

[gbmhunter]

Woops, I traced this problem to the fact that my system python was symlinked to python2 and not python3. Calling python3 fixed this.