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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _run_process(self, start_path, stop_path, process_num=0):
 """ The function calls _run_path for given set of paths """

        # pre processing
        self.producer.initialize_worker(process_num)
        self.consumer.initialize_worker(process_num)

        # processing
        for path in range(start_path, stop_path):
            self._run_path(path)

        # post processing
        self.consumer.finalize_worker(process_num)