File size: 836 Bytes
7046435 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 |
import polars as pl
from huggingface_hub import hf_hub_url, list_repo_files
from tqdm import tqdm
file_names = pl.Series(list_repo_files("allenai/c4", repo_type="dataset"))
# Take all splits of the realnewslike subset (513 files)
news_files = file_names.filter(
file_names.str.starts_with("realnewslike/") & file_names.str.ends_with(".json.gz"),
).str.strip_prefix("realnewslike/")
features = {"timestamp": pl.Datetime, "url": pl.String}
aggregator = pl.DataFrame(schema=features)
for filename in tqdm(news_files):
json_url = hf_hub_url(
repo_id="allenai/c4",
filename=filename,
subfolder="realnewslike",
repo_type="dataset",
)
df = pl.read_ndjson(json_url, schema=features).sort("timestamp")
aggregator = pl.concat([aggregator, df.head(1), df.tail(1)])
print(aggregator.shape)
|