関連ワード:  how to do a for loop in python    how to do a for loop in python with range    how to make a for loop in python    how to create a for loop in python    how to make a for loop in python that counts down    how to do a for statement in python    how to do a reverse for loop in python    how to do a for loop backwards in python    how to do a nested for loop in python    how to do a decrementing for loop in python