{"description":"def slicer(l, start, end): if not isinstance(l, list) or not start or not end or start > end or start > len(l) or end > len(l): return None return l[start-1:end] if __name__ == \"__main__\": print slicer(\"a\", 3, 5) == None print slicer([\"a\"], 0, 0) == None print slicer([\"a\"], 0, 1) == None print slice\u2026","version":"1.0","type":"rich","blog_url":"https://yoshiyoshifujii.hatenablog.com/","categories":["Python","L-99"],"height":"190","provider_name":"Hatena Blog","url":"https://yoshiyoshifujii.hatenablog.com/entry/20100728/p7","width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fyoshiyoshifujii.hatenablog.com%2Fentry%2F20100728%2Fp7\" title=\"P18 (**)\u30ea\u30b9\u30c8\u3092\u30b9\u30e9\u30a4\u30b9\u3057\u3066\u8981\u7d20\u3092\u62bd\u51fa\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>","image_url":null,"provider_url":"https://hatena.blog","author_url":"https://blog.hatena.ne.jp/yoshiyoshifujii/","published":"2010-07-28 00:00:06","title":"P18 (**)\u30ea\u30b9\u30c8\u3092\u30b9\u30e9\u30a4\u30b9\u3057\u3066\u8981\u7d20\u3092\u62bd\u51fa\u3059\u308b\u3002","blog_title":"\u6bce\u65e5Learning","author_name":"yoshiyoshifujii"}