Tuple immutability in Python - Mini Project: Build & Apply

Tuple immutability

📖 Scenario: You are organizing a small library system. Each book is represented by a tuple containing its title and author. Since book details should not change once added, tuples are a good choice to store this information.

🎯 Goal: You will create a tuple for a book, try to change its content (which is not allowed), and then create a new tuple with updated information to understand tuple immutability.

📋 What You'll Learn

Create a tuple named book with the title 'The Alchemist' and author 'Paulo Coelho'.

Create a variable named new_author and set it to 'P. Coelho'.

Create a new tuple named updated_book by replacing the author in book with new_author.

Print the original book tuple and the updated_book tuple.

💡 Why This Matters

🌍 Real World

Tuples are used to store fixed collections of data like coordinates, dates, or records that should not change accidentally.

💼 Career

Understanding tuple immutability helps in writing safer code and working with data structures in many programming jobs.

1

Create the initial book tuple

Create a tuple called book with the title 'The Alchemist' and author 'Paulo Coelho'.

Python

# Create the book tuple with title and author
# Your code here

Need a hint?

Use parentheses () to create a tuple with two strings.

2

Create a new author variable

Create a variable called new_author and set it to the string 'P. Coelho'.

Python

book = ('The Alchemist', 'Paulo Coelho')
# Create new_author variable with value 'P. Coelho'
# Your code here

Need a hint?

Just assign the string to the variable new_author.

3

Create a new tuple with updated author

Create a new tuple called updated_book by keeping the title from book and replacing the author with new_author.

Python

book = ('The Alchemist', 'Paulo Coelho')
new_author = 'P. Coelho'
# Create updated_book tuple with title from book and author from new_author
# Your code here

Need a hint?

Use book[0] to get the title from the original tuple.

4

Print both tuples

Print the original book tuple and the updated_book tuple on separate lines.

Python

book = ('The Alchemist', 'Paulo Coelho')
new_author = 'P. Coelho'
updated_book = (book[0], new_author)
# Print book and updated_book
# Your code here

Need a hint?

Use two print() statements, one for each tuple.