関連ワード:  how to get part of array in python    how to get element of array in python    how to get last element of array in python    how to get first element of array in python    how to extract part of an array in python    how to get first 5 elements of array in python    how to get first 10 elements of array in python    how to get second last element of array in python    how to get index of element in array python    how to get number of elements in array python