intro_to_chemvae.ipynb loading model AttributeError: 'str' object has no attribute 'decode'

[Rdk0]

executing vae = VAEUtils(directory='../models/zinc_properties')
yields this error

---

AttributeError Traceback (most recent call last)
in ()
----> 1 vae = VAEUtils(directory='../models/zinc_properties')

/home/rad/miniconda3/envs/chemvae/lib/python3.6/site-packages/chemvae-1.0.0-py3.6.egg/chemvae/vae_utils.py in init(self, exp_file, encoder_file, decoder_file, directory)
35 self.indices_char = dict((i, c) for i, c in enumerate(chars))
36 # encoder, decoder
---> 37 self.enc = load_encoder(self.params)
38 self.dec = load_decoder(self.params)
39 self.encode, self.decode = self.enc_dec_functions()

/home/rad/miniconda3/envs/chemvae/lib/python3.6/site-packages/chemvae-1.0.0-py3.6.egg/chemvae/models.py in load_encoder(params)
77 # return encoder
78 # !# not sure if this is the right format
---> 79 return load_model(params['encoder_weights_file'])
80
81

/home/rad/miniconda3/envs/chemvae/lib/python3.6/site-packages/keras/models.py in load_model(filepath, custom_objects, compile)
230 if model_config is None:
231 raise ValueError('No model found in config file.')
--> 232 model_config = json.loads(model_config.decode('utf-8'))
233 model = model_from_config(model_config, custom_objects=custom_objects)
234

AttributeError: 'str' object has no attribute 'decode'

[sspleo]

This issue has someething to do with h5py. Downgrade h5py to '2.10.0' or remove '.decode('utf-8')' from load_model.

[Shredderroy]

I experience the same issue as well.

[Shredderroy]

I can confirm that changing h5py to h5py=2.10.0 in environment.yml makes the error go away.