in torchnet/dataset/tensordataset.py [0:0]
def __len__(self):
if isinstance(self.data, dict):
return len(list(self.data.values())[0])
elif isinstance(self.data, list):
return len(self.data[0])
elif torch.is_tensor(self.data) or isinstance(self.data, np.ndarray):
return len(self.data)