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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 read_configuration(self):
 """Load configuration from Django settings."""

        self.configured = True
        # Default backend needs to be the database backend for backward
        # compatibility.
        backend = (getattr(settings, 'CELERY_RESULT_BACKEND', None) or
                   getattr(settings, 'CELERY_BACKEND', None))
        if not backend:
            settings.CELERY_RESULT_BACKEND = 'database'
        return DictAttribute(settings)