tomprince/buildbot — comment on commit e402cc5dfa61f4393cccfa95a152257019f33b00
File: master/buildbot/process/buildstep.py line 445
By benallard:

consider using ``super(BuildStep, klass)`` here instead of ``object``. The implication is that you are then also creating a ``PropertiesMixin``.
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Then you also want to give args and kwargs to ``__new__``