Datasets:
Downloading a small portion of dataset
#4
by
thurac2022
- opened
Is there a way to download just small portion of dataset, for example, per language and/or per programming task (data science, etc.)?
Hi @thurac2022 ! Because this version of The Stack is grouped by repository (to train with repo context), filtering by language is only possible on the fly, e.g.:
ds = load_dataset("bigcode/the-stack-v2-train-smol-ids", streaming=True, split="train")
# In a loop:
for sample in iter(ds):
for file in sample["files"]:
if file["language"]:
...
# Or with .map():
ds = ds.map(your_language_filtering_function)
With streaming=True
you don't actually download the whole dataset locally.
Also, the bigger datasets like https://huggingface.co/datasets/bigcode/the-stack-v2-dedup have a flat flat structure, so you can do:
# specific language (e.g. Dockerfiles)
ds = load_dataset("bigcode/the-stack-v2-dedup", data_dir="data/Dockerfile", split="train")
@anton-l I get the exception when use the aws download script:
Traceback (most recent call last):
File "/data_script/data_tmp/starcoder_data_download.py", line 21, in <module>
for row in ds:
File "/usr/local/python/lib/python3.11/site-packages/datasets/iterable_dataset.py", line 1388, in __iter__
for key, example in ex_iterable:
File "/usr/local/python/lib/python3.11/site-packages/datasets/iterable_dataset.py", line 679, in __iter__
yield from self._iter()
File "/usr/local/python/lib/python3.11/site-packages/datasets/iterable_dataset.py", line 752, in _iter
transformed_example.update(self.function(*function_args, **self.fn_kwargs))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/data_script/data_tmp/starcoder_data_download.py", line 20, in <lambda>
ds = ds.map(lambda row: download_contents(row["blob_id"], row["src_encoding"]))
~~~^^^^^^^^^^^
KeyError: 'blob_id'