deep_flatten python Code Snippet in 2024
listrecursionintermediate
Last Updated: 19 April 2024
Deep flattens a list.
- Use recursion.
- Use
isinstance()withcollections.abc.Iterableto check if an element is iterable. - If it is iterable, apply
deep_flatten()recursively, otherwise return[lst].
from collections.abc import Iterable
def deep_flatten(lst):
return ([a for i in lst for a in
deep_flatten(i)] if isinstance(lst, Iterable) else [lst])deep_flatten([1, [2], [[3], 4], 5]) # [1, 2, 3, 4, 5]
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