Python Programming - Encapsulation - Discussion

Discussion Forum : Encapsulation - General Questions (Q.No. 84)

Encapsulation

84.

How can encapsulation be enforced in Python to make a variable 'account_number' accessible only within its own class?

class BankAccount:
    def __init__(self, account_number, __balance):
        self.account_number = account_number
        self.__balance = __balance

Use a getter method for 'account_number'

Add a single underscore prefix before 'account_number'

Make 'account_number' a global variable

Add a double underscore prefix before 'account_number'

Answer: Option

Explanation:

Adding a double underscore prefix before 'account_number' makes it a private variable, enforcing encapsulation within the class.

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