Fix linting errors

[eurunuela]

Closes #293

Proposed Changes

• Fix linting errors around the entire package.

[vinferrer]

where are the other tests?

[eurunuela]

where are the other tests?

I think CircleCI went a bit crazy with so many consecutive commits. They should start appearing now that I've canceled the tests on previous commits.

[eurunuela]

Style check passed! Yay! 🎉

[vinferrer]

LGTM!!!!

[codecov]

Codecov Report

Merging #294 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #294   +/-   ##
=======================================
  Coverage   92.87%   92.87%           
=======================================
  Files           9        9           
  Lines         842      842           
=======================================
  Hits          782      782           
  Misses         60       60           

Impacted Files	Coverage Δ
phys2bids/bids.py	98.05% <ø> (ø)
phys2bids/interfaces/txt.py	98.67% <ø> (ø)
phys2bids/slice4phys.py	97.14% <ø> (ø)
phys2bids/utils.py	92.10% <ø> (ø)
phys2bids/viz.py	93.75% <ø> (ø)

[tsalo]

@eurunuela Have you been cancelling old builds manually?

To do it automatically, on the phys2bids CircleCI page, go to Project Settings --> Advanced --> turn on Auto-cancel Redundant Builds

[eurunuela]

Thank you so much @tsalo ! That will make silly PRs like this one even smoother.