関連ワード:  how to create new linked list python    how to create a linked list python    how to create a node in linked list python    how to make a doubly linked list python    how to create a singly linked list in python    how to create a circular linked list in python    how to make a copy of linked list python    how to create a new node in linked list in python    how to create a linked list from an array in python    how to create an empty linked list python