Tutorials - Mike Müller: The How and Why of Object-oriented Programming in Python

Key takeaways
  1. Identify classes, methods, and attributes.

    • Classes:
      • Car
      • Person
      • Battery
    • Methods:
      • drive()
      • charge()
      • get_battery_size()
      • get_height()
      • get_name()
    • Attributes:
      • brand
      • model
      • kilometers
      • battery_size
      • height
      • name
  2. Explain the purpose of inheritance in the code.

    • Inheritance allows the ElectricCar class to inherit the attributes and methods of the Car class.
    • This means that the ElectricCar class can use all of the same attributes and methods as the Car class, without having to redefine them.
    • This is useful because it allows us to create new classes that are based on existing classes, without having to rewrite all of the code.
  3. Describe the advantages of using object-oriented programming in this example.

    • Reusability:
      • We can reuse the code for the Car class in the ElectricCar class, without having to rewrite it.
    • Extensibility:
      • We can easily add new features to the ElectricCar class, without having to change the Car class.
    • Maintainability:
      • The code is easier to maintain because it is organized into classes and objects.
  4. Identify potential disadvantages of using object-oriented programming in this example.

    • Complexity:
      • Object-oriented programming can make the code more complex, especially if there are many classes and objects.
    • Performance:
      • Object-oriented programming can sometimes be slower than procedural programming, especially if there are many objects.
  5. Suggest improvements to the code.

    • Use a more descriptive class name for the ElectricCar class.
      • For example, we could use ElectricVehicle or EV.
    • Add a method to the ElectricCar class to calculate the range of the car.
      • This would be useful for users who want to know how far they can drive on a single charge.
    • Add a method to the ElectricCar class to charge the car.
      • This would allow users to charge the car without having to use a separate charger.