関連ワード:  how to join 2 lists in python    how to combine 2 lists in python    how to concatenate 2 lists in python    how to append 2 lists in python    how to join multiple lists in python    how to connect 2 lists in python    how to merge two lists in python    how to combine multiple lists in python    how to merge two lists in python without duplicates    how to connect two lists in python