Datasets:

pixparse

/

cc3m-wds

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Pixel Parsing 41

Hi,

I've downloaded an Arrow-formatted dataset offline using the hugggingface's datasets library by:

import json
from datasets import load_dataset

dataset = load_dataset("pixparse/cc3m-wds")
dataset.save_to_disk("./cc3m_1") 

now I need to convert it to WebDataset's TAR format for offline data ingestion.
Is there a straightforward method to achieve this conversion without an internet connection? Can I simply convert it by

tar -cvf 

btw, when I tried:

import webdataset as wds
from huggingface_hub import get_token
from torch.utils.data import DataLoader

hf_token = get_token()
url = "https://huggingface.co/datasets/timm/imagenet-12k-wds/resolve/main/imagenet12k-train-{{0000..1023}}.tar"
url = f"pipe:curl -s -L {url} -H 'Authorization:Bearer {hf_token}'"
dataset = wds.WebDataset(url).decode()
dataset.save_to_disk("./cc3m_webdataset") 

error occured:

AttributeError: 'WebDataset' object has no attribute 'save_to_disk'

Thanks a lot!