RpmLint

The :bbRpmLint step checks for common problems in RPM packages or spec files:

from buildbot.plugins import steps

f.addStep(steps.RpmLint())

The step takes the following parameters

fileloc: The file or directory to check. In case of a directory, it is recursively searched for RPMs and spec files to check.
config: Path to a rpmlint config file. This is passed as the user configuration file if present.