def __sub__(self,other):
        sout = self.copy()
        sout -= other
        return sout
Test that if a job is added with an already existing id, ConflictingIdError is raised.
dataset/ETHPy150Open ipython/ipython-py3k/IPython/utils/ipstruct.py/Struct.__sub__--crossover with--dataset/ETHPy150Open agronholm/apscheduler/tests/test_schedulers.py/TestBaseScheduler.test_add_job_id_conflict