python 3 Call child attribute from parent method
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Title: Calling Child Attribute from Parent Method in Python 3
Introduction:
In object-oriented programming, Python supports inheritance, allowing you to create a new class that is a modified version of an existing class. When working with parent and child classes, there may be scenarios where you want to access a child class attribute from a method defined in the parent class. This tutorial will guide you through the process of calling a child attribute from a parent method in Python 3.
Example Scenario:
Let's consider a scenario where we have a parent class called Parent and a child class called Child. The Child class has an attribute named child_attribute. We want to create a method in the Parent class that can access and manipulate the child_attribute of an instance of the Child class.
Explanation:
We define a Parent class that contains a method called access_child_attribute. This method takes a child_instance parameter, which is expected to be an instance of the Child class.
The Child class inherits from the Parent class. It has an _init_ method to initialize the child_attribute, and a display_child_attribute method to display the value of the child_attribute.
In the example usage section, we create an instance of the Child class (child_instance) and call its display_child_attribute method to show the initial value of the child_attribute.
We also create an instance of the Parent class (parent_instance) and call its access_child_attribute method, passing the child_instance as an argument. Inside the access_child_attribute method, we access and print the value of the child_attribute of the provided child_instance.
Conclusion:
By following this tutorial, you've learned how to call a child attribute from a parent method in Python 3. This can be useful in scenarios where you need to perform operations in the parent class that involve attributes defined in its child classes.
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