Please make lubuntu-update-notifier PEP-8 compliant, to ensure code quality.
Not sure what you mean.
But one thing that might be usefull is to put in build-depend flake8. I've seen that in some debian/control files they put pyflakes, we could put flake8.
Is that what you mean?
The only things I have right now are some imports I'm not using but plan to use in the future.