IndiaBIX

Python Programming - Encapsulation - Discussion

Discussion Forum : Encapsulation - General Questions (Q.No. 94)
Encapsulation
94.
In Python, what is the benefit of using a private variable with a double underscore prefix, such as __inventory_count? 
class Product:
    __inventory_count = 0

    def update_inventory(self, count):
        Product.__inventory_count += count
It improves code maintainability by hiding implementation details
It allows unrestricted access to __inventory_count
It exposes all internal details of __inventory_count
It creates a global variable
Answer: Option
Explanation:
Encapsulation with a double underscore prefix improves code maintainability by hiding the implementation details of the class attribute __inventory_count.
Discussion:
Be the first person to comment on this question !
Post your comments here:

Your comments will be displayed after verification.

Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers