python如何在嵌套列表中搜索项目 [英] python how to search an item in a nested list

问题描述

说我有这个清单:

li = [["0", "20", "ar"], ["20", "40", "asdasd"], ["50", "199", "bar"], ["24", "69", "sarkozy"]]

现在，忘记数字了，它们让我认识到字符串的位置.因此，基本上，鉴于我手头有字符串"ar"，如何提取所有包含"ar"的列表?

Now, forget about the numbers, they are something that let me recognize the position of string. So basically, given that I have the string "ar" in hand, how can I extract all the lists that contain "ar"?

new_li = [["50", "199", "bar"], ["24", "69", "sarkozy"]]

如何获取此列表?

推荐答案

>>> [x for x in li if 'ar' in x[2]]
[['0', '20', 'ar'], ['50', '199', 'bar'], ['24', '69', 'sarkozy']]

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