exception ashpy.restorers.restorer.ModelNotConstructedError[source]

Bases: Exception

Exception raised while restoring sub-classed Model before having called it on data.


When restoring a tf.keras.Model object from checkpoint assure that the model has been correctly built and instantiated by firstly calling it on some sample inputs. In the case of a model built with either the Sequential or Functional API an exception will be raised; for a model built with the Chainer API it will fail silently, restoration will be “successful” but no values will actually be restored since there are no valid placeholder as the model has not be built yet.