{"image_url":null,"title":"Python\u4ee3\u5165\u306e\u6d41\u308c\u30fc\u30ca\u30f3\u30c0\u30b3\u30ec","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fzehnpaard.hatenablog.com%2Fentry%2F2016%2F05%2F21%2F061700\" title=\"Python\u4ee3\u5165\u306e\u6d41\u308c\u30fc\u30ca\u30f3\u30c0\u30b3\u30ec - Arantium Maestum\" 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","author_url":"https://blog.hatena.ne.jp/zehnpaard/","categories":["Python"],"blog_url":"https://zehnpaard.hatenablog.com/","author_name":"zehnpaard","type":"rich","provider_url":"https://hatena.blog","blog_title":"Arantium Maestum","url":"https://zehnpaard.hatenablog.com/entry/2016/05/21/061700","description":"stackoverflow.com a, b = a[b] = {}, 5 Raymond Hettinger\u306e\u904e\u53bb\u30c4\u30a4\u30fc\u30c8\u3092\u8ffd\u3063\u3066\u3044\u305f\u3089\u3001\u3053\u308c\u3063\u3066\u3069\u3046\u306a\u308b\u3093\u3060\uff1f\u3068\u308f\u304b\u3089\u306a\u304b\u3063\u305f\u5f0f\u304c\u3042\u3063\u305f\u3002 \u7d50\u679c\u306fa = {5:(a, 5)}\u3001b=5\u3068\u518d\u5e30\u7684\u306a\u30c7\u30a3\u30af\u30b7\u30e7\u30ca\u30ea\u30fc\u304c\u3067\u304d\u308b\u3002 \u809d\u306f\u4ee3\u5165\u5f0f\u306e\u8a55\u4fa1\u9806\u3067\u3001a = b = c = d\u306e\u5834\u5408\u3001\u307e\u305a\u4ee3\u5165\u3059\u308b\u5024\u306ed\u304c\u8a55\u4fa1\u3055\u308c\u305f\u5f8c\u3001\u5de6\u304b\u3089\u53f3\u3078\u3068\u4ee3\u5165\u304c\u9032\u3093\u3067\u884c\u304f\u3002 \u3064\u307e\u308aa=b=c=d\u306f\u5b9f\u969b\u306b\u5b9f\u884c\u3055\u308c\u308b\u5834\u5408 a = d b = d c = d \u306b\u307b\u307c\u8fd1\u3057\u3044\u308f\u3051\u3060\u304c\u3001d\u304c\u8a55\u4fa1\u3055\u308c\u308b\u306e\u306f\u4e00\u56de\u3060\u3051\u3068\u306a\u308b\u3002 \u5143\u306e\u30b9\u30cb\u30da\u30c3\u30c8\u306e\u5834\u5408\u3001 a, b = {}, 5 a[b] = a,\u2026","version":"1.0","width":"100%","height":"190","published":"2016-05-21 06:17:00"}