関連ワード:  how to get index in array python    how to get position in array python    how to get last index in array python    how to get index of element in array python    how to get index of value in array python    how to get index of number in array python    how to get index of item in array python    how to get indices of array in python    how to get index of 2d array in python    how to get index of max value in array python