File size: 1,702 Bytes
3fffd0e 9269662 3fffd0e 1462867 3fffd0e 2abde28 3fffd0e 2abde28 3fffd0e 1462867 9269662 3fffd0e | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 | #!/usr/bin/env python
# /// script
# requires-python = ">=3.10"
# dependencies = [
# "tqdm",
# ]
# ///
"""
Chronicling America OCR dump downloader (no options, no deps).
Run:
uv run chronicling_dl_simple.py
"""
import os
import json
import tarfile
import urllib.request
from pathlib import Path
import tqdm
CATALOG_URL = "https://chroniclingamerica.loc.gov/ocr.json"
DEST_ROOT = Path("data/chronicling-america")
ARCHIVES_DIR = DEST_ROOT / "_archives"
def remove_non_txt_files(root: Path) -> None:
deleted = 0
for p in root.rglob("*"):
if p.is_file() and p.suffix.lower() != ".txt":
p.unlink()
deleted += 1
print(f"deleted {deleted} non-txt files in {root}")
def main() -> None:
DEST_ROOT.mkdir(parents=True, exist_ok=True)
ARCHIVES_DIR.mkdir(parents=True, exist_ok=True)
with urllib.request.urlopen(CATALOG_URL) as r:
catalog = json.load(r)
for entry in tqdm.tqdm(catalog["ocr"]):
url = entry["url"]
name = entry["name"]
archive_path = ARCHIVES_DIR / name
out_dir = DEST_ROOT / name.removesuffix(".tar.bz2")
if out_dir.exists():
print(f"Directory exists, skipping {out_dir}")
continue
else:
if not archive_path.exists():
print(f"downloading {name}")
urllib.request.urlretrieve(url, archive_path)
print(f"extracting {name}")
with tarfile.open(archive_path, "r:bz2") as tar:
tar.extractall(out_dir) # simple, unsafe but short
remove_non_txt_files(out_dir)
os.remove(archive_path)
print("done")
if __name__ == "__main__":
main()
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