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Accept longs in default_collate for dataloader in python 2 #4001

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Merged
soumith merged 1 commit into from
Dec 4, 2017
Merged

Accept longs in default_collate for dataloader in python 2 #4001

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4 changes: 2 additions & 2 deletions torch/utils/data/dataloader.py
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Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,7 @@
import sys
import traceback
import threading
from torch._six import string_classes
from torch._six import string_classes, int_classes


if sys.version_info[0] == 2:
Expand Down Expand Up @@ -114,7 +114,7 @@ def default_collate(batch):
if elem.shape == (): # scalars
py_type = float if elem.dtype.name.startswith('float') else int
return numpy_type_map[elem.dtype.name](list(map(py_type, batch)))
elif isinstance(batch[0], int):
elif isinstance(batch[0], int_classes):
return torch.LongTensor(batch)
elif isinstance(batch[0], float):
return torch.DoubleTensor(batch)
Expand Down