如何提取嵌套列表? [英] how to extract nested lists?

问题描述

重复项:

• 在Python中添加浅表
• 对拉平序列序列的理解吗?

• Flattening a shallow list in Python
• Comprehension for flattening a sequence of sequences?

让我们说我有一个带有嵌套列表的列表:

Lets say I have a list with nested lists:

[["a","b","c"], ["d","e","f"], ["g","h","i","j"]...]

将其转换为这样的单个列表的最佳方法是什么

what is the best way to convert it to a single list like that

["a", "b", "c", "d", "e"....]

推荐答案

使用 itertools.chain :

from itertools import chain

list(chain.from_iterable(list_of_lists))

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