関連ワード:  how to make a for loop in python    how to make a for loop in python that counts down    how to write a for loop in python    how to do a for loop in python    how to create a for loop in python    how to write a for loop in python stack overflow    how to make a decreasing for loop in python    how to make a reverse for loop in python    how to make a nested for loop in python    how to make a for loop infinite in python