Arc configuration

Summary:
rND @ DevCentral

Python linters from rNOTIFCLI

Test Plan:
I introduced a PEP8 violation, then arc lint.
As expected, it detected it.

Linter passes on original file.

Reviewers: dereckson

Reviewed By: dereckson

Differential Revision: https://devcentral.nasqueron.org/D988