回答編集履歴
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追記
test
CHANGED
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@@ -3,3 +3,51 @@
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追記
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上の方法では list[1].append(2) とすると、lists は [[1,2], [1,2], [1,2]] のようになってしまいます。
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各要素を copy すれば、それを回避できます。
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参考情報
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- Python : creating multiple lists
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[https://stackoverflow.com/questions/23999801](https://stackoverflow.com/questions/23999801)
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> ...
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> obj = {i:[] for i in list(range(1,5))}
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>
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- Python: Create multiple lists
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[https://www.w3resource.com/python-exercises/list/python-data-type-list-exercise-41.php](https://www.w3resource.com/python-exercises/list/python-data-type-list-exercise-41.php)
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> ...
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> obj = {}
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> for i in range(1, 21):
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> obj[str(i)] = []
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> print(obj)
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- copy — 浅いコピーおよび深いコピー操作
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[https://docs.python.jp/3/library/copy.html](https://docs.python.jp/3/library/copy.html)
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