While it's a good idea to automate the linting of the python code used for our tests, I think that it can be quite distracting when hacking on a NixOS test. I figured that it might be more convenient to add an option as a shortcut for this to avoid that everyone needs to dig into the test driver again.
*** NixOS *** NixOS is a Linux distribution based on the purely functional package management system Nix. More information can be found at http://nixos.org/nixos and in the manual in doc/manual.