.. bb:step:: HLint
The :bb:step:`HLint` step runs Twisted Lore, a lint-like checker over a set of .xhtml files.
Any deviations from recommended style is flagged and put in the output log.
The step looks at the list of changes in the build to determine which files to check - it does not check all files.
It specifically excludes any .xhtml files in the top-level sandbox/ directory.
The step takes a single, optional, parameter: python.
This specifies the Python executable to use to run Lore.
from buildbot.plugins import steps
f.addStep(steps.HLint())