Accessing and modifying attributes in Python - Mini Project: Build & Apply

Accessing and Modifying Attributes

📖 Scenario: You are creating a simple program to manage a book's information. You will work with a Book class that has attributes for the book's title and author.

🎯 Goal: Build a program that creates a Book object, accesses its attributes, modifies one attribute, and then prints the updated information.

📋 What You'll Learn

Create a Book class with title and author attributes

Create an instance of Book with specific title and author

Access and modify the title attribute of the Book instance

Print the updated title and author of the book

💡 Why This Matters

🌍 Real World

Managing and updating information about objects like books, products, or users is common in software applications.

💼 Career

Understanding how to access and modify object attributes is fundamental for programming jobs involving object-oriented programming.

1

Create the Book class and an instance

Create a class called Book with an __init__ method that takes title and author as parameters and assigns them to attributes. Then create an instance called my_book with the title 'The Great Gatsby' and author 'F. Scott Fitzgerald'.

Python

# Create the Book class and the my_book instance
# Your code here

Need a hint?

Define the Book class with an __init__ method that sets self.title and self.author. Then create my_book using the class.

2

Access the title attribute

Create a variable called current_title and set it to the title attribute of the my_book object.

Python

class Book:
    def __init__(self, title, author):
        self.title = title
        self.author = author

my_book = Book('The Great Gatsby', 'F. Scott Fitzgerald')

# Access the title attribute and assign it to current_title
# Your code here

Need a hint?

Use dot notation to get the title from my_book and assign it to current_title.

3

Modify the title attribute

Change the title attribute of my_book to 'The Great Gatsby - Revised Edition'.

Python

class Book:
    def __init__(self, title, author):
        self.title = title
        self.author = author

my_book = Book('The Great Gatsby', 'F. Scott Fitzgerald')

current_title = my_book.title

# Modify the title attribute of my_book
# Your code here

Need a hint?

Use dot notation to assign the new string to my_book.title.

4

Print the updated book information

Print the updated title and author attributes of my_book in the format: Title: [title], Author: [author].

Python

class Book:
    def __init__(self, title, author):
        self.title = title
        self.author = author

my_book = Book('The Great Gatsby', 'F. Scott Fitzgerald')

current_title = my_book.title

my_book.title = 'The Great Gatsby - Revised Edition'

# Print the updated title and author
# Your code here

Need a hint?

Use an f-string to print the updated title and author from my_book.