def cost_per_example(self, model, data, ** kwargs):
        raise NotImplementedError(str(type(self)) + "does not implement "
                                  "cost_per_example.")
Creates local Tempest repo and virtualenv for deployment.
dataset/ETHPy150Open lisa-lab/pylearn2/pylearn2/costs/cost.py/Cost.cost_per_example--crossover with--dataset/ETHPy150Open openstack/rally/rally/verification/tempest/tempest.py/Tempest.install