{"blog_url":"https://nainaistar.hatenablog.com/","categories":["Python","\u6280\u8853"],"width":"100%","type":"rich","provider_name":"Hatena Blog","description":"\u59cb\u3081\u306b Python\u3067\u30c7\u30fc\u30bf\u3092\u30b0\u30eb\u30fc\u30d7\u5316\u3059\u308b\u969b\u3001defaultdict\u3092\u4f7f\u7528\u3059\u308b\u3068\u7c21\u5358\u304b\u3064\u52b9\u7387\u7684\u306b\u5b9f\u88c5\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001defaultdict\u3092\u4f7f\u3063\u305fgroup_by\u306e\u5b9f\u88c5\u65b9\u6cd5\u3068\u3001itertools.groupby\u3068\u306e\u9055\u3044\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002 \u74b0\u5883 Python 3.12.6 \u5b9f\u88c5 defaultdict\u3092\u4f7f\u7528\u3059\u308c\u3070\u30b7\u30f3\u30d7\u30eb\u306b\u5b9f\u88c5\u3067\u304d\u307e\u3059\u3002 from collections import defaultdict class TestGroupBy: class _Test: def __init__(self, user_id, group_id): self.user_id = use\u2026","blog_title":"\u304d\u308a\u4e38\u306e\u6280\u8853\u65e5\u8a18","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fnainaistar.hatenablog.com%2Fentry%2Fgroupby-in-python\" title=\"Python\u3067group_by\u3057\u305f\u3044\u306a\u3089defaultdict\u3092\u4f7f\u3046 - \u304d\u308a\u4e38\u306e\u6280\u8853\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>","published":"2024-10-07 12:00:00","author_name":"nainaistar","version":"1.0","provider_url":"https://hatena.blog","height":"190","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/n/nainaistar/20241006/20241006185058.png","author_url":"https://blog.hatena.ne.jp/nainaistar/","url":"https://nainaistar.hatenablog.com/entry/groupby-in-python","title":"Python\u3067group_by\u3057\u305f\u3044\u306a\u3089defaultdict\u3092\u4f7f\u3046"}