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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 job_disable(self, job_id):
 		""" 		Disable a job. Disabled jobs will not be executed. 		:param job_id: Job identifier to disable. 		:type job_id: :py:class:`uuid.UUID` 		"""

		job_id = normalize_job_id(job_id)
		with self._job_lock:
			job_desc = self._jobs[job_id]
			job_desc['enabled'] = False