{"author_name":"ryuichi1208","provider_url":"https://hatena.blog","image_url":null,"height":"190","author_url":"https://blog.hatena.ne.jp/ryuichi1208/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fryuichi1208.hateblo.jp%2Fentry%2F2025%2F05%2F16%2F000000\" title=\"\u3010Python\u3011Parquet\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u3063\u3066\u30d1\u30fc\u30b9\u3057\u3066 - \u5730\u65b9\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u5b66\u7fd2\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_title":"\u5730\u65b9\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u5b66\u7fd2\u65e5\u8a18","provider_name":"Hatena Blog","title":"\u3010Python\u3011Parquet\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u3063\u3066\u30d1\u30fc\u30b9\u3057\u3066","url":"https://ryuichi1208.hateblo.jp/entry/2025/05/16/000000","type":"rich","description":"\u3053\u308c\u3067csv\u3092\u5909\u63db\u3059\u308b import pandas as pd import pyarrow as pa import pyarrow.parquet as pq df = pd.read_csv('test.csv') table = pa.Table.from_pandas(df) pq.write_table(table, 'test.parquet') \u30d1\u30fc\u30b9\u3059\u308b # parquet\u30d5\u30a1\u30a4\u30eb\u306e\u30d1\u30fc\u30b9\u3092\u884c\u3046 import pyarrow.parquet as pq def parse_parquet(file_path): \"\"\" \u30d1\u30fc\u30b1\u30c3\u30c8\u30d5\u30a1\u30a4\u30eb\u3092\u30d1\u30fc\u30b9\u3057\u3066\u3001\u30c7\u30fc\u30bf\u30d5\u30ec\u30fc\u30e0\u3092\u8fd4\u3059\u3002 \u2026","published":"2025-05-16 00:00:00","blog_url":"https://ryuichi1208.hateblo.jp/","width":"100%","categories":[],"version":"1.0"}