Generate list of obligatory and optional course of specific Dept.

def CourseOfDept(request):
	"""
		Generate list of obligatory and optional course of specific Dept.
	"""
	dept = request.GET['dept']
	school = request.GET['school']
	c = Course(school=school)
	return JsonResponse(c.getByDept(dept=dept, grade=request.GET['grade'] if 'grade' in request.GET else None), safe=False)