{"width":"100%","type":"rich","height":"190","blog_url":"https://yoshiyoshifujii.hatenablog.com/","description":"def remove_at(l, num): return [v for i,v in enumerate(l) if (i+1) != num] if isinstance(l, list) else None if __name__ == \"__main__\": print remove_at(\"a\", 3) == None print remove_at([\"a\"], -1) == [\"a\"] print remove_at([\"a\"], 0) == [\"a\"] print remove_at([\"a\"], 1) == [] print remove_at([\"a\", \"b\"], -2)\u2026","blog_title":"\u6bce\u65e5Learning","url":"https://yoshiyoshifujii.hatenablog.com/entry/20100728/p9","provider_name":"Hatena Blog","title":"P20 (*)\u30ea\u30b9\u30c8\u304b\u3089K\u756a\u76ee\u306e\u8981\u7d20\u3092\u524a\u9664\u3059\u308b\u3002","image_url":null,"author_url":"https://blog.hatena.ne.jp/yoshiyoshifujii/","author_name":"yoshiyoshifujii","version":"1.0","published":"2010-07-28 00:00:08","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fyoshiyoshifujii.hatenablog.com%2Fentry%2F20100728%2Fp9\" title=\"P20 (*)\u30ea\u30b9\u30c8\u304b\u3089K\u756a\u76ee\u306e\u8981\u7d20\u3092\u524a\u9664\u3059\u308b\u3002 - \u6bce\u65e5Learning\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_url":"https://hatena.blog","categories":["Python","L-99"]}