wizard.py

## Inheriting characteristics from other variables, in this case 'name'
class Wizard:
    def __init__(self, name):
        if not name:
            raise ValueError("Missing name")
        self.name = name

    ...

class Student(Wizard):
    def __init__(self, name, house):
        super().__init__(name)
        self.house = house


    ...


class Professor:
    def __init__(self, name, subject):
        super().__init__(name)
        self.subject = subject


    ...


wizard = Wizard("Albus")
student = Student("Harry", "Gryffindor")
professor = Professor("Severus", "Defense Against the Dark Arts")



## Operator Overloading