override a getter on a subclass in python

To override a getter on a subclass in python, you need to use the @property decorator on the subclass and define a new getter method with the same name as the property you are overriding. In the new getter method, you can define the behavior for the property in the subclass. Here's an example:

main.py
class Parent:
    @property
    def age(self):
        return self._age
    
    @age.setter
    def age(self, value):
        self._age = value


class Child(Parent):
    @property
    def age(self):
        return self._age + 5  # override the getter method to add 5 years to the parent's age
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In this example, we have a parent class Parent with an age property that has a getter and a setter. The child class Child inherits from the parent class and overrides the getter method for the age property by defining a new age property with the same name and using the @property decorator. In the new getter method, we add 5 years to the parent's age before returning it.

Now, if we create instances of the parent and child classes and set their ages, we can see that the child's age is 5 years older than the parent's age:

main.py
parent = Parent()
child = Child()

parent.age = 30
child.age = 30

print(parent.age)  # Output: 30
print(child.age)  # Output: 35
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This demonstrates how to override a getter method for a property in a subclass using Python's object-oriented programming features.