将代表列表的字符串转换为实际的列表对象 [英] Converting a string that represents a list, into an actual list object

问题描述

我有一个代表列表的字符串:

I have a string that represents a list:

"[22, 33, 36, 41, 46, 49, 56, 72, 85, 92, 95, 98, 107, 118, 120, 123, 124, 126, 127, 130, 149, 157, 161, 171, 174, 177, 187, 195, 225, 302, 316, 359, 360, 363, 396, 479, 486, 491]"

我想把那些乱七八糟的字符串变成一个实际的列表.我想可以将数字进行正则表达式并循环然后(append())，但是有没有更简单的方法?不知道如何将其设置为正则表达式.

I would like to turn that litteral string into an actual list. I suppose to could regex out the numbers and loop over then (append()) but is there an easier way? Not sure how I would set that up as a regex.

推荐答案

使用 ast .literal_eval .

>>> import ast
>>> i = ast.literal_eval('[22, 33, 36, 41, 46, 49, 56]')
>>> i[3]
41

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