Adopting a formatter and/or import sorter

Can we adopt a formatter and/or [import sorter](https://github.com/timothycrosley/isort)?
My preference is [`black`](https://github.com/psf/black).

_Originally posted by @Kilo59 in https://github.com/ExpDev07/coronavirus-tracker-api/issues/169#issuecomment-603941229_