File size: 703 Bytes
52a5af7 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 | """Read compressed StreamStop JSONL records without extracting the full collection."""
from pathlib import Path
import argparse
import gzip
import json
import lzma
def iter_records(path):
path = Path(path)
opener = lzma.open if path.suffix == ".xz" else gzip.open
with opener(path, "rt", encoding="utf-8") as stream:
for line in stream:
if line.strip():
yield json.loads(line)
if __name__ == "__main__":
parser = argparse.ArgumentParser(description=__doc__)
parser.add_argument("path", type=Path)
args = parser.parse_args()
row = next(iter_records(args.path))
print("Record fields:", ", ".join(sorted(row)))
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