関連ワード:  creating object of a class in python    creating instance of a class in python    create object of another class in python    create a new instance of a class in python    how to create multiple objects of a class in python    instantiate an object of a class python    declare object of class python    how to create a new object of a class in python    creating an instance of a class in another class python    can we create object of abstract class in python