Python Encapsulation

[DataScience]

Explanation:

Base Class:

• BaseClass defines a constructor (__init__) that initializes a private attribute _x with the value 10. The underscore (_) in front of _x indicates it's intended for internal use within the class and shouldn't be directly access from outside.
  

Derived Class:

• DerivedClass inherits from BaseClass.
  
  
• Its constructor (__init__) explicitly calls the base class constructor using super().__init__(). This ensures that the base class's initialization logic is executed first.
  
  
• It then prints the value of self._x. However, due to name mangling (Python's way of protecting private attributes in subclasses), directly accessing _x would result in an AttributeError. To access the private attribute from the base class, it's recommended to use protected methods or properties defined in the base class itself.
  
  

Output:

Since _x is private, attempting to print obj2.x in the original code would cause an AttributeError. Here's the corrected output:
10
This output is produced because the print(self._x) line in DerivedClass's constructor is able to access the private attribute within the derived class instance.

buran write Apr-02-2024, 06:02 PM:
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