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[Bug Fix] update load_dataset to support long data #878

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[Bug Fix] update load_dataset to support long data #878

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6 changes: 4 additions & 2 deletions src/lmflow/datasets/dataset.py
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Original file line number Diff line number Diff line change
Expand Up @@ -19,7 +19,7 @@
from pathlib import Path
from typing import Optional

from datasets import load_dataset
from datasets import load_dataset, Features, Value
from datasets import Dataset as HFDataset

from lmflow.args import DatasetArguments
Expand Down Expand Up @@ -113,12 +113,14 @@ def __init__(self, data_args: DatasetArguments=None, backend: str="huggingface",

# Load the dataset using the HuggingFace dataset library
extensions = "json"
data_types = Features({'conversation_id': Value(dtype='int64', id=None), 'system': Value(dtype='string', id=None), 'messages': [{'content': Value(dtype='large_string', id=None), 'role': Value(dtype='string', id=None)}]})
raw_dataset = load_dataset(
extensions,
data_files=data_files,
field=KEY_INSTANCES,
split="train",
use_auth_token=None,
features=data_types
)
self.backend_dataset = raw_dataset
self._check_data_format()
Expand Down Expand Up @@ -442,4 +444,4 @@ def save(
json.dump(self.to_dict(), fout, indent=4, ensure_ascii=False)

else:
logger.error(f"Unsupported format when saving the dataset: {format}.")
logger.error(f"Unsupported format when saving the dataset: {format}.")