@classmethod
    def mr_job_script(cls):
        """Path of this script. This returns the file containing
        this class, or ``None`` if there isn't any (e.g. it was
        defined from the command line interface.)"""
        try:
            return inspect.getsourcefile(cls)
        except __HOLE__:
            return None

    ### Other useful utilities ###
dataset/ETHPy150Open Yelp/mrjob/mrjob/job.py/MRJob.mr_job_script