Olvasd el a kódot figyelmesen

class Point:
    __slots__ = ("x", "y")
    def __init__(self, x, y):
        self.x = x
        self.y = y


class Tagged(Point):
    pass


p = Point(1, 2)
t = Tagged(3, 4)

print(f"p:{p.x},{p.y}")
print(f"t:{t.x},{t.y}")
print(hasattr(p, "__dict__"))
print(hasattr(t, "__dict__"))

try:
    p.z = 99
    print(f"p.z={p.z}")
except AttributeError:
    print("p:no_z")

t.z = 99
print(f"t.z={t.z}")

Mit ír ki a program? Írd ide: