REST APIs with Flask and Python - Class Inheritance

This video tutorial introduces class inheritance in Python, explaining how one class can inherit methods and properties from another. It begins with creating a Device class, followed by a Printer class that inherits from Device. The tutorial covers defining methods, using the super function, and understanding the hierarchy of method calls in inheritance. The video concludes with practical examples of using these classes and methods.

What is the primary purpose of class inheritance in Python?

• To delete methods from a class.

• To create a new class without any methods.

• To make a class private.

• To allow a class to inherit methods and properties from another class.

In the 'Device' class, what does the 'disconnect' method do?

• It changes the device's name.

• It deletes the device object.

• It sets the device's connection status to false and prints 'disconnected'.

• It connects the device to a network.

Why is it not ideal to add printer-specific functionality directly to the 'Device' class?

• Because the 'Device' class is only for USB devices.

• Because the 'Device' class is a private class.

• Because the 'Device' class cannot have any methods.

• Because the 'Device' class is meant to be a general representation of any device.

What is the role of the 'super' function in the 'Printer' class?

• To make the class private.

• To call the parent class's methods.

• To delete the parent class.

• To create a new class.

What does the 'Printer' class's 'print' method do if the printer is not connected?

• It connects the printer automatically.

• It prints a message saying the printer is not connected.

• It raises an error.

• It prints the pages anyway.

How does Python determine which method to call when using a class that inherits from another?

• It checks the child class first, then the parent class, and finally the object class.

• It only checks the parent class.

• It checks the object class first.

• It randomly selects a class to check.

What happens if a method is not found in the printer or device class?

• Python will create the method automatically.

• Python will ignore the method call.

• Python will check the object class for the method.

• Python will raise an error immediately.