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Cannot load HDF5 model after export

See original GitHub issue

I tried the example of Titanic Survival Prediction from your document and export the model with the following code ,although the model is exported I got numpy error.

model = clf.export_model()
model.save('titanic.h5')

Traceback (most recent call last): File "titanic.py", line 17, in <module> model.save('titanic.h5') File "C:\Users\AppData\Local\Programs\Python\Python37\lib\site-packages\tensorflow_core\python\keras\engine\network.py", line 1008, in save signatures, options) File "C:\Users\AppData\Local\Programs\Python\Python37\lib\site-packages\tensorflow_core\python\keras\saving\save.py", line 112, in save_model model, filepath, overwrite, include_optimizer) File "C:\Users\AppData\Local\Programs\Python\Python37\lib\site-packages\tensorflow_core\python\keras\saving\hdf5_format.py", line 109, in save_model_to_hdf5 save_weights_to_hdf5_group(model_weights_group, model_layers) File "C:\Users\AppData\Local\Programs\Python\Python37\lib\site-packages\tensorflow_core\python\keras\saving\hdf5_format.py", line 627, in save_weights_to_hdf5_group weight_values = K.batch_get_value(weights) File "C:\Users\AppData\Local\Programs\Python\Python37\lib\site-packages\tensorflow_core\python\keras\backend.py", line 3270, in batch_get_value return [x.numpy() for x in tensors] File "C:\Users\AppData\Local\Programs\Python\Python37\lib\site-packages\tensorflow_core\python\keras\backend.py", line 3270, in <listcomp> return [x.numpy() for x in tensors] AttributeError: 'TrackableWeightHandler' object has no attribute 'numpy'

When I was trying to load the HDF5 model for prediction , errors occurs

model = tf.keras.models.load_model('titanic.h5', custom_objects=ak.CUSTOM_OBJECTS)

Traceback (most recent call last): File "load_model.py", line 4, in <module> model = tf.keras.models.load_model('titanic.h5', custom_objects=ak.CUSTOM_OBJECTS) File "C:\Users\Python\Python37\lib\site-packages\tensorflow_core\python\keras\saving\save.py", line 146, in load_model return hdf5_format.load_model_from_hdf5(filepath, custom_objects, compile) File "C:\Users\Python\Python37\lib\site-packages\tensorflow_core\python\keras\saving\hdf5_format.py", line 171, in load_model_from_hdf5 load_weights_from_hdf5_group(f['model_weights'], model.layers) File "C:\Users\Python\Python37\lib\site-packages\tensorflow_core\python\keras\saving\hdf5_format.py", line 668, in load_weights_from_hdf5_group g = f[name] File "h5py\_objects.pyx", line 54, in h5py._objects.with_phil.wrapper File "h5py\_objects.pyx", line 55, in h5py._objects.with_phil.wrapper File "C:\Users\Python\Python37\lib\site-packages\h5py\_hl\group.py", line 264, in __getitem__ oid = h5o.open(self.id, self._e(name), lapl=self._lapl) File "h5py\_objects.pyx", line 54, in h5py._objects.with_phil.wrapper File "h5py\_objects.pyx", line 55, in h5py._objects.with_phil.wrapper File "h5py\h5o.pyx", line 190, in h5py.h5o.open KeyError: "Unable to open object (object 'dense' doesn't exist)"