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33 changes: 18 additions & 15 deletions src/datasets/io/generator.py
Original file line number Diff line number Diff line change
Expand Up @@ -15,25 +15,23 @@ def __init__(
streaming: bool = False,
gen_kwargs: Optional[dict] = None,
num_proc: Optional[int] = None,
split: NamedSplit = Split.TRAIN,
split: NamedSplit,
fingerprint: Optional[str] = None,
**kwargs,
):
super().__init__(
features=features,
cache_dir=cache_dir,
keep_in_memory=keep_in_memory,
streaming=streaming,
num_proc=num_proc,
**kwargs,
)
self.builder = Generator(
cache_dir=cache_dir,
features=features,
generator=generator,
gen_kwargs=gen_kwargs,
split=split,
config_id="default-fingerprint=" + fingerprint if fingerprint else None,
config_id=f"default-fingerprint={fingerprint}" if fingerprint else None,
**kwargs,
)
self.fingerprint = fingerprint
Expand All @@ -49,14 +47,19 @@ def read(self):
verification_mode = None
base_path = None

self.builder.download_and_prepare(
download_config=download_config,
download_mode=download_mode,
verification_mode=verification_mode,
base_path=base_path,
num_proc=self.num_proc,
)
dataset = self.builder.as_dataset(split=self.builder.config.split, in_memory=self.keep_in_memory)
if self.fingerprint:
dataset._fingerprint = self.fingerprint
return dataset
try:
self.builder.download_and_prepare(
download_config=download_config,
download_mode=download_mode,
verification_mode=verification_mode,
base_path=base_path,
num_proc=self.num_proc,
)
dataset = self.builder.as_dataset(split=self.builder.config.split, in_memory=self.keep_in_memory)
if self.fingerprint:
dataset._fingerprint = self.fingerprint
except Exception as e:
print(f"An error occurred while reading the dataset: {e}")
raise

return dataset