python - 如何将字符串列表的列表转换为字符串列表的列表的列表

Question

我有一个字符串列表的列表。它看起来像这样:

[['okay'],
 ['d', 'so'],
 ['i', 'guess']]

我想进一步将每个字符串嵌套在列表中，所以它看起来像这样:

[[['okay']],
 [['d'], ['so']],
 [['i'], ['guess']]]

请告知如何执行此操作。谢谢。

Answer 1

使用以下列表理解

[[[s2] for s2 in s1] for s1 in l]

运行示例:

>>> l =  [['okay'],
 ['d', 'so'],
 ['i', 'guess']]
>>> [[[s2] for s2 in s1] for s1 in l]
[[['okay']], [['d'], ['so']], [['i'], ['guess']]]