__init__ method behavior in Python - Mini Project: Build & Apply

__init__ method behavior

📖 Scenario: You are creating a simple program to represent a book in a library system. Each book has a title and an author.

🎯 Goal: Build a Python class called Book that uses the __init__ method to set the title and author when a new book is created.

📋 What You'll Learn

Create a class named Book

Use the __init__ method to set title and author attributes

Create an instance of Book with specific title and author

Print the title and author of the created book

💡 Why This Matters

🌍 Real World

Classes with <code>__init__</code> methods are used to create objects that represent real things, like books, users, or products, with their own data.

💼 Career

Understanding how to initialize objects is essential for software development jobs that involve object-oriented programming, such as building apps, games, or data models.

1

Create the Book class with __init__ method

Write a class called Book with an __init__ method that takes self, title, and author as parameters. Inside __init__, set self.title to title and self.author to author.

Python

# Define the Book class with __init__ method
# Your code here

Need a hint?

Remember, __init__ is a special method that runs when you create a new object. Use self to store the values.

2

Create a Book instance

Create a variable called my_book and assign it a new Book object with the title 'The Great Gatsby' and author 'F. Scott Fitzgerald'.

Python

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

# Create an instance of Book called my_book
# Your code here

Need a hint?

Use the class name Book followed by parentheses with the title and author inside quotes.

3

Access the title and author attributes

Use a print statement to display the title and author of my_book by accessing my_book.title and my_book.author.

Python

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

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

# Print the title and author of my_book
# Your code here

Need a hint?

Use dot notation to get the attributes from the object.

4

Display the book information

Write a single print statement that shows the book information in this format: Title: The Great Gatsby, Author: F. Scott Fitzgerald using an f-string and the attributes my_book.title and my_book.author.

Python

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

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

# Print the book info in one line using an f-string
# Your code here

Need a hint?

Use print(f"Title: {my_book.title}, Author: {my_book.author}") to format the output.