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Python Programming - Inheritance

Exercise : Inheritance - General Questions
  • Inheritance - General Questions
36.
What is the purpose of the __exit__() method in the context of Python's context managers?
To create a new instance of the class
To define class attributes
To customize the exit behavior when exiting a with statement
To access superclass attributes directly
Answer: Option
Explanation:
The __exit__() method is used in context managers to customize the behavior when exiting a with statement, such as handling exceptions.
37.
In Python, what is the purpose of the __hash__() method in a class?
To define class attributes
To create a new instance of the class
To customize the hash value for instances of the class
To access superclass attributes directly
Answer: Option
Explanation:
The __hash__() method is used to customize the hash value for instances of a class when using them in hashable collections like dictionaries or sets.
38.
How can you achieve encapsulation in Python without using private attributes?
By using the @private decorator
By using single leading underscores in attribute names
Encapsulation is not possible without private attributes
By using the @encapsulate decorator
Answer: Option
Explanation:
Encapsulation in Python can be achieved by using a single leading underscore in attribute names, indicating that they are intended for internal use.
39.
What is the purpose of the __next__() method in Python classes that implement iterators?
To define class attributes
To create a new instance of the class
To customize the next value when iterating over instances of the class
To access superclass attributes directly
Answer: Option
Explanation:
The __next__() method is used in classes that implement iterators to customize the next value when iterating over instances of the class.
40.
What is the purpose of the __repr__() method in Python classes?
To define class attributes
To create a new instance of the class
To provide a string representation of the object for debugging
To access superclass attributes directly
Answer: Option
Explanation:
The __repr__() method is used to provide a string representation of the object for debugging and inspection purposes.
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