Drop support for pylint < 1.0
Enable ignoring unknown attributes on modules (both nose and pytest
use advanced techniques, support for which only made it to pylint
recently)
Fix some bugs revealed by pylint
Do minor refactoring or add pylint:disable directives where the
linter complains.
Reviewed-By: Tomas Babej <tbabej@redhat.com>
In the parameters system, we have been checking for a positive list of values
which get converted to None. The problem is that this method can in some
cases throw warnings when type coercion doesn't work (particularly, string
to unicode). Instead, any values that evaluate to False that are neither
numeric nor boolean should be converted to None.
Reviewed-By: Jan Pazdziora <jpazdziora@redhat.com>