将列表字符串转换为列表列表[重复] - python

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Converting a string representation of a list into an actual list object [duplicate]

(3个答案)

5年前关闭。

我有这个字符串:

num="['1', '9', '7', '6'],['2', '0', '8', '3', '7'],['3', '8', '5', '7', '9', '10', '4']"

我想返回/输出:

[['1', '9', '7', '6'],['2', '0', '8', '3', '7'],['3', '8', '5', '7', '9', '10', '4']]

我如何从那个巨大的字符串中获得这个列表列表？

python大神给出的解决方案

ast.literal_eval正是这样做的好处。

>>> num="['1', '9', '7', '6'],['2', '0', '8', '3', '7'],['3', '8', '5', '7', '9', '10', '4']"
>>> import ast
>>> list(ast.literal_eval(num))
[['1', '9', '7', '6'], ['2', '0', '8', '3', '7'], ['3', '8', '5', '7', '9', '10', '4']]