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3 changes: 1 addition & 2 deletions taming/data/utils.py
Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,6 @@
import numpy as np
import torch
from taming.data.helper_types import Annotation
from torch._six import string_classes
from torch.utils.data._utils.collate import np_str_obj_array_pattern, default_collate_err_msg_format
from tqdm import tqdm

Expand Down Expand Up @@ -149,7 +148,7 @@ def custom_collate(batch):
return torch.tensor(batch, dtype=torch.float64)
elif isinstance(elem, int):
return torch.tensor(batch)
elif isinstance(elem, string_classes):
elif isinstance(elem, (str, bytes)):
return batch
elif isinstance(elem, collections.abc.Mapping):
return {key: custom_collate([d[key] for d in batch]) for key in elem}
Expand Down