This style looks pretty good to me: pipeline = task(...) pipeline |= task(...) So does this style: steps = [task(...), task(...)] pipeline =

This style looks pretty good to me: pipeline = task(...) pipeline |= task(...) So does this style: steps = [task(...), task(...)] pipeline = functools.reduce(operator.or_, steps) But it appears you can just change "task" to "Task" and then: pipeline = pyper.Pipeline([Task(...), Task(...)])