Practice @classmethod (2.5.3) - Chapter 2: Python Decorators and Descriptors

Practice: @classmethod

Lesson 2.5.3Python Decorators and Descriptors

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9 questions

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6 sample questions

Question 1.
What is a class method?
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Think about methods that affect the class itself.
Question 2.
What does the @classmethod decorator do?
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Remember which method you use when you want class-level access.
3Question 3.
What is the main purpose of the @classmethod decorator?
- To modify instance data
- To transform a method into one that can access class data
- To create static methods
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Remember what makes class methods special compared to ordinary methods.
4Question 4.
True or False: Class methods can directly change instance-level variables.
- True
- False
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Think about the difference between class and instance contexts.
Question 5.
Design a Movie class using class methods that tracks the total number of movies created and also allows retrieving the total amount of movies. How would you implement this?
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Keep in mind that you'll need to use the cls parameter when defining your class method.
Question 6.
Create a class method for a Book class that checks if the number of books exceeds a certain limit, and returns a message based on whether the limit is reached.
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Focus on how the class itself maintains the book count.

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