hp-oop-3-10.py

# hogwarts_magic.py

class Wizard:
    # ...

class House:
    # ...
    
class Wand:
    def __init__(self, wood, core, length):
        self.wood = wood
        self.core = core
        self.length = length

    def cast_spell(self, spell):
        # We'll get to this later, in Year 4
        ...