a-a-a-a-a

English | 中文

展开任意层级的嵌套列表、元组、集合与字典，可限深度。

安装

pip install a-a-a-a-a

用法

from a_a_a_a_a import flatten, flatten_iter

flatten([1, [2, [3, [4]]]])       # [1, 2, 3, 4]
flatten([1, [2, [3, [4]]]], 2)    # [1, 2, 3, [4]]
flatten(["ab", ["cd"]])           # ['ab', 'cd']
flatten([{"a": 1}, [2]])          # [1, 2]
list(flatten_iter([1, [2]]))      # [1, 2]

说明

字符串和字节视为叶子，永不拆成单字符；dict 按 value 展开；n_depth 为空表示全展开，1 只拆一层。提供 flatten_iter 流式版本，深长输入不会一次性materialize。

许可证

MIT

English

Flatten nested iterables to a chosen depth.

Install

pip install a-a-a-a-a

Usage

from a_a_a_a_a import flatten, flatten_iter

flatten([1, [2, [3, [4]]]])       # [1, 2, 3, 4]
flatten([1, [2, [3, [4]]]], 2)    # [1, 2, 3, [4]]
flatten(["ab", ["cd"]])           # ['ab', 'cd']
flatten([{"a": 1}, [2]])          # [1, 2]
list(flatten_iter([1, [2]]))      # [1, 2]

Notes

Strings and bytes are leaves and are never split into characters. Dicts descend into their values. n_depth=None unwraps fully, 1 unwraps one level. flatten_iter streams instead of materializing.

License

MIT