{"blog_url":"https://michisu.hatenadiary.org/","categories":["Python"],"description":"\"Python does not make any guarantee at all about *when* the destructor will be called.\"\u3068\u3044\u3046\u308f\u3051\u3067\u3001__del__\u306b\u66f8\u3044\u305f\u30b3\u30fc\u30c9\u304c\u60f3\u5b9a\u3069\u304a\u308a\u306b\u52d5\u304b\u306a\u3044\u30b1\u30fc\u30b9\u304c\u7d39\u4ecb\u3055\u308c\u3066\u3044\u308b\u3002 \u3067\u7d42\u4e86\u6642\u306b\u78ba\u5b9f\u306b\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306e\u5f8c\u304b\u305f\u3065\u3051\u3092\u3059\u308b\u305f\u3081\u306e\u30ec\u30b7\u30d4\u3002AutoClose\u30af\u30e9\u30b9\u3092\u7d99\u627f\u3057\u305f\u30af\u30e9\u30b9\u3092\u4f5c\u3063\u3066close\u30e1\u30bd\u30c3\u30c9\u3092\u5b9f\u88c5\u3057\u3066\u304a\u304f\u3068\u3001Python\u304c\u7d42\u4e86\u3059\u308b\u6642\u306bAutoClose\u306e\u30af\u30e9\u30b9\u30e1\u30bd\u30c3\u30c9closeall\u304c\u547c\u3073\u51fa\u3055\u308c\u3066\u3001\u751f\u6210\u3057\u305f\u5168\u3066\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306eclose\u30e1\u30bd\u30c3\u30c9\u304c\u5b9f\u884c\u3055\u308c\u308b\u3002\u8abf\u3079\u305f\u3053\u3068\u3002 type\u3092\u7d99\u627f __met\u2026","author_name":"michisu","type":"rich","height":"190","provider_url":"https://hatena.blog","author_url":"https://blog.hatena.ne.jp/michisu/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fmichisu.hatenadiary.org%2Fentry%2F20070702%2Fp2\" title=\"ASPN : Python Cookbook : Semi-automatic resource management with AutoClose - from __future__ import nowhere @ \u306f\u3066\u306a\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_name":"Hatena Blog","image_url":null,"published":"2007-07-02 00:00:01","version":"1.0","url":"https://michisu.hatenadiary.org/entry/20070702/p2","title":"ASPN : Python Cookbook : Semi-automatic resource management with AutoClose","width":"100%","blog_title":"from __future__ import nowhere @ \u306f\u3066\u306a"}