回答編集履歴
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追記
test
CHANGED
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@@ -21,3 +21,81 @@
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ただ、さすがにこれは読みづらいので、適当に処理を分けた方が良いです。
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---
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こんな感じに組んでみても面白いかもしれませんね。
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```Python
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lst = [[1, 1, 1, 1], [2, 2, 5, 2], [100, [1, 2, 4], 0, 2], 2]
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print(lst)
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def _recursive_enumerate_inner(src, indice):
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if isinstance(src, (list, tuple)):
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for i, inner in enumerate(src):
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yield from _recursive_enumerate_inner(inner, indice + [i])
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else:
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yield indice, src
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def recursive_enumerate(src):
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yield from _recursive_enumerate_inner(src, [])
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def recursive_index(src, purpose):
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return (
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indice
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for indice, elem in recursive_enumerate(src)
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if elem == purpose
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)
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purpose = 2
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for ans in recursive_index(lst, purpose):
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print(f'{purpose} at {ans}.')
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```
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**実行結果** [Wandbox](https://wandbox.org/permlink/vmYOV4Yg3FpbokV0)
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```plain
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[[1, 1, 1, 1], [2, 2, 5, 2], [100, [1, 2, 4], 0, 2], 2]
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2 at [1, 0].
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2 at [1, 1].
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2 at [1, 3].
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2 at [2, 1, 1].
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2 at [2, 3].
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2 at [3].
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```
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