Code Style: black

[WillAyd]

Quite a few open source projects now use black from the PSF for code formatting. In essence, it does all code formatting for you so you don't have to think about it

https://github.com/psf/black

I think would be good for TabPy to clean up code. From experience you can just run this wide open on your code base, commit the result and move on from there, probably setting up in CI as well