Document, annotate, and comment task.py

[martinruefenacht]

Hi, I'd like to contribute to the project by making it pep8 compliant and generally adding annotations, documentation, and comments.

Which version of Python is targeted by the code?

Given there are annotations in the code I assume at least Python 3.5.

[rp-]

Hi!

It is stated in the setup.py file, minimum version is currently 3.6

[martinruefenacht]

@rp- Ah! Thanks I missed that...

Are you okay with using Black as a formatter?
I typically think its a pretty good standard.

I'll start out with a single file to process and make a PR, so we can decide what style we want to use.

I'll also rename this issue to change it to something describing what I am doing.

[rp-]

I usually try to keep the formatting from pycharm, but I think this is pep8, except for the generated files.
And I don't think it is worth to generate them full pep8 compatible