Python In Practice - 15 Projects to Master Python - hasattr( )

The video tutorial explains how to check if a class or object has a specific attribute using Boolean values. It covers defining a class and its initialization function, creating objects, and differentiating between class and object attributes. The tutorial also demonstrates using the has_attribute function to verify the presence of attributes in classes and objects.

What is the purpose of the self argument in a class method?

• To refer to the instance of the class

• To refer to the class itself

• To define a class variable

• To initialize a class

How can you check if an object has a specific attribute?

• Using the getattr function

• Using the delattr function

• Using the hasattr function

• Using the setattr function

What will the hasattr function return if an attribute is not present in an object?

• An error

• True

• False

• None

What is the main difference between class variables and object attributes?

• Object attributes cannot be modified

• Class variables are shared across all instances

• Object attributes are shared across all instances

• Class variables are unique to each instance

How do you define a class variable in Python?

• By using the init method

• By using the class keyword

• By defining it outside any methods

• By using the self keyword