Chapter 13 (CycleGAN)

[chdaesung]

I met the following error while testing CycleGAN.ipynb of Chapter 13.

NameError                                 Traceback (most recent call last)
<ipython-input-18-af85a4b0ad99> in <cell line: 1>()
----> 1 trn_ds = CycleGANDataset('apples_train', 'oranges_train')
      2 val_ds = CycleGANDataset('apples_test', 'oranges_test')
      3 
      4 trn_dl = DataLoader(trn_ds, batch_size=1, shuffle=True, collate_fn=trn_ds.collate_fn)
      5 val_dl = DataLoader(val_ds, batch_size=5, shuffle=True, collate_fn=val_ds.collate_fn)

<ipython-input-17-eca7eea9b41b> in __init__(self, apples, oranges)
      1 class CycleGANDataset(Dataset):
      2     def __init__(self, apples, oranges):
----> 3         self.apples = Glob(apples)
      4         self.oranges = Glob(oranges)

NameError: name 'Glob' is not defined

I could not find a source file in which Glob() was defined. Where does Glob() come from?