perovskite data loader issue

[yuanqidu]

I found the following errors while loading the perovskite dataset.

job exception: local variable 'X_shape' referenced before assignment

0%| | 0/16 [01:14<?, ?trial/s, best loss=?] Traceback (most recent call last): File "fingerprint.py", line 204, in val_metrics, test_metrics = bayesian_optimization(args) File "fingerprint.py", line 137, in bayesian_optimization max_evals=args['num_trials']) File "/home/v-yuanqidu/.conda/envs/deepchem/lib/python3.7/site-packages/hyperopt/fmin.py", line 553, in fmin rval.exhaust() File "/home/v-yuanqidu/.conda/envs/deepchem/lib/python3.7/site-packages/hyperopt/fmin.py", line 356, in exhaust self.run(self.max_evals - n_done, block_until_done=self.asynchronous) File "/home/v-yuanqidu/.conda/envs/deepchem/lib/python3.7/site-packages/hyperopt/fmin.py", line 292, in run self.serial_evaluate() File "/home/v-yuanqidu/.conda/envs/deepchem/lib/python3.7/site-packages/hyperopt/fmin.py", line 170, in serial_evaluate result = self.domain.evaluate(spec, ctrl) File "/home/v-yuanqidu/.conda/envs/deepchem/lib/python3.7/site-packages/hyperopt/base.py", line 907, in evaluate rval = self.fn(pyll_rval) File "fingerprint.py", line 120, in objective val_metrics, test_metrics = main(save_path, configure, hyperparams) File "fingerprint.py", line 49, in main args, tasks, all_dataset, transformers = load_dataset(args) File "/home/v-yuanqidu/moleculenet/examples/utils.py", line 105, in load_dataset featurizer=featurizer, splitter=splitter, reload=False) File "/home/v-yuanqidu/.conda/envs/deepchem/lib/python3.7/site-packages/deepchem/molnet/load_function/material_datasets/load_perovskite.py", line 107, in load_perovskite return loader.load_dataset('perovskite', reload) File "/home/v-yuanqidu/.conda/envs/deepchem/lib/python3.7/site-packages/deepchem/molnet/load_function/molnet_loader.py", line 201, in load_dataset train = transformer.transform(train) File "/home/v-yuanqidu/.conda/envs/deepchem/lib/python3.7/site-packages/deepchem/trans/transformers.py", line 197, in transform _, y_shape, w_shape, _ = dataset.get_shape() File "/home/v-yuanqidu/.conda/envs/deepchem/lib/python3.7/site-packages/deepchem/data/datasets.py", line 2557, in get_shape return tuple(X_shape), tuple(y_shape), tuple(w_shape), tuple(ids_shape) UnboundLocalError: local variable 'X_shape' referenced before assignment