Chapter 9

9.1 Vehicles

 class Vehicle():
    def __init__(self, make, model, year):
        self.make = make
        self.model = model
        self.year = year
    def ride(self):
        print(f"{self.make} {self.model} is riding")
    def __str__(self):
        return f"{self.year} {self.make} {self.model}"
class Car(Vehicle):
    def __init__(self, make, model, year, has_sunroof, is_electric):
        super().__init__(make, model, year)
        self.has_sunroof = has_sunroof
        self.is_electric = is_electric
    def __str__(self):
        return f"{'Electric ' if self.is_electric else ''}{super().__str__()}, with{'out' if not self.has_sunroof else ''} sunroof"
class Truck(Vehicle):
    def __init__(self, make, model, year, payload_capacity):
        super().__init__(make, model, year)
        self.payload_capacity = payload_capacity
    def can_carry(self, weight):
        return self.payload_capacity...