This video tutorial provides a comprehensive refresher on Python classes, covering the basics of creating classes, defining methods, and understanding instance and class variables. It explains how to use the init method to initialize objects and set default values. The tutorial emphasizes the importance of using 'self' in methods and demonstrates how to create and manipulate objects in Python, offering insights into object-oriented programming concepts.

What is the preferred naming convention for class names in Python?

• Uppercase letters

• Snake_case

• CamelCase

• Lowercase letters

What is the purpose of the 'self' parameter in class methods?

• To refer to the class itself

• To refer to the instance of the class

• To refer to the global variables

• To refer to the parent class

How can you create an instance variable in Python?

• By assigning it to an object after it is created

• By defining it outside the class

• By using the 'global' keyword

• By defining it inside the class

What is a class variable in Python?

• A variable that is shared among all instances of a class

• A variable that is unique to each instance

• A variable that is defined outside the class

• A variable that is only accessible within a method

What is the purpose of the __init__ method in a Python class?

• To delete an object

• To create a new class

• To initialize an object's attributes

• To define class-level variables

How can you provide default values for attributes in the __init__ method?

• By using the 'default' keyword

• By assigning values directly in the method signature

• By using a separate method

• By defining them outside the class

Is it mandatory to use the word 'self' as the first parameter in class methods?

• Only if the method is private

• Only if the method is public

• No, any word can be used

• Yes, it is mandatory