{"categories":[],"version":"1.0","provider_url":"https://hatena.blog","blog_title":"\u897f\u5c3e\u6cf0\u548c\u306e\u306f\u3066\u306a\u30c0\u30a4\u30a2\u30ea\u30fc","author_url":"https://blog.hatena.ne.jp/nishiohirokazu/","type":"rich","description":"Python\u306erepr\u3068eval\u3092\u4f7f\u3063\u305f\u3089\u304a\u624b\u8efd\u306b\u30b7\u30ea\u30a2\u30e9\u30a4\u30ba\u30fb\u30c7\u30b7\u30ea\u30a2\u30e9\u30a4\u30ba\u3067\u304d\u308b\u3093\u3058\u3083\u306a\u3044\u304b\uff1f >>> d = {\"x\": 1.0, \"y\": 0.5} >>> repr(d) \"{'y': 0.5, 'x': 1.0}\" >>> eval(repr(d)) {'y': 0.5, 'x': 1.0} \u3068\u3044\u3046\u8a71\u3092\u805e\u3044\u3066\u300c\u3044\u3084\u3044\u3084NaN\u3068\u304bInfinity\u3068\u304b\u304c\u901a\u3089\u306a\u3044\u3067\u3057\u3087\u300d\u3068\u601d\u3063\u305f\u308f\u3051\u3060\u3051\u3069 >>> d = {\"x\": 1e999, \"y\": 1e999 / 1e999} >>> d {'y': nan, 'x': inf} >>> repr(d) \"{'y': nan, 'x': inf\u2026","height":"190","url":"https://nishiohirokazu.hatenadiary.org/entry/20110606/1307334288","provider_name":"Hatena Blog","published":"2011-06-06 13:24:48","image_url":null,"title":"repr/eval\u3067\u304a\u624b\u8efd\u30b7\u30ea\u30a2\u30e9\u30a4\u30ba\uff1f","blog_url":"https://nishiohirokazu.hatenadiary.org/","author_name":"nishiohirokazu","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fnishiohirokazu.hatenadiary.org%2Fentry%2F20110606%2F1307334288\" title=\"repr/eval\u3067\u304a\u624b\u8efd\u30b7\u30ea\u30a2\u30e9\u30a4\u30ba\uff1f - \u897f\u5c3e\u6cf0\u548c\u306e\u306f\u3066\u306a\u30c0\u30a4\u30a2\u30ea\u30fc\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","width":"100%"}