old_contents: # flake8: noqa
  from deepchem.feat.molecule_featurizers.adjacency_fingerprint import AdjacencyFingerprint
  from deepchem.feat.molecule_featurizers.bp_symmetry_function_input import BPSymmetryFunctionInput
  from deepchem.feat.molecule_featurizers.morgan_fingerprint import CircularFingerprint
  from deepchem.feat.molecule_featurizers.coulomb_matrices import CoulombMatrix
  from deepchem.feat.molecule_featurizers.coulomb_matrices import CoulombMatrixEig
  from deepchem.feat.molecule_featurizers.one_hot_featurizer import OneHotFeaturizer
  from deepchem.feat.molecule_featurizers.raw_featurizer import RawFeaturizer
  from deepchem.feat.molecule_featurizers.rdkit_descriptors import RDKitDescriptors
  from deepchem.feat.molecule_featurizers.smiles_to_image import SmilesToImage
  from deepchem.feat.molecule_featurizers.smiles_to_seq import SmilesToSeq
  
new_contents: # flake8: noqa
  from deepchem.feat.molecule_featurizers.adjacency_fingerprint import AdjacencyFingerprint
  from deepchem.feat.molecule_featurizers.bp_symmetry_function_input import BPSymmetryFunctionInput
  from deepchem.feat.molecule_featurizers.circular_fingerprint import CircularFingerprint
  from deepchem.feat.molecule_featurizers.coulomb_matrices import CoulombMatrix
  from deepchem.feat.molecule_featurizers.coulomb_matrices import CoulombMatrixEig
  from deepchem.feat.molecule_featurizers.one_hot_featurizer import OneHotFeaturizer
  from deepchem.feat.molecule_featurizers.raw_featurizer import RawFeaturizer
  from deepchem.feat.molecule_featurizers.rdkit_descriptors import RDKitDescriptors
  from deepchem.feat.molecule_featurizers.smiles_to_image import SmilesToImage
  from deepchem.feat.molecule_featurizers.smiles_to_seq import SmilesToSeq
  
subject: fix bug