gzip 圧縮されたテキストファイルを書き出す - Qiita

# !/usr/bin/env python3 # -*- coding: utf-8 -*- import io, csv, gzip, sys from pathlib import Path def writeCSV(f, newline='\n'): dat = [{'a': 1, 'b': 2}, {'a': 3, 'b': 4}] w = csv.DictWriter(f, dat[0].keys(), lineterminator=newline) w.writeheader() w.writerows(dat) buffer = io.BytesIO() with gzip.GzipFile(fileobj=buffer, mode='wb') as compressed: with io.TextIOWrapper(compressed, encoding='utf-8'