scripts/parse_wikidata.py

import gzip
import msgspec
import pathlib

import tqdm


def read_lines_jsonl(file_name):
    with gzip.open(file_name, "rb") as file_handle:
        buffer = b""
        while True:
            chunk = file_handle.read((2**31) * 2)

            if not chunk:
                break
            lines = (buffer + chunk).split(b"\n")

            for line in lines[:-1]:
                yield line.strip(), file_handle.tell()

            buffer = lines[-1]


decoder = msgspec.json.Decoder()

with gzip.open(
    pathlib.Path("v2_SuperWikiFigures/wikidata/latest-all.json.gz"), "rb"
) as fp:
    for line in tqdm.tqdm(fp):
        if len(line) <= 2:
            continue
        if line[-2] == 44:
            line = line.rstrip(b",\n")
        wkdata: dict = decoder.decode(line)
        if wkdata["id"].startswith("M"):
            print(wkdata["id"])