関連ワード:  how to loop a list in python    how to iterate a list in python    how to iterate a list in python by index    how to loop through a list in python    how to loop through a list in python backwards    how to reverse loop a list in python    how to loop through a list in python with index    how to loop a list backwards in python    how to loop a linked list in python    how to loop a list of dictionary in python