Sorting and reversing lists in Python - Mini Project: Build & Apply

Sorting and reversing lists

📋 What You'll Learn

💡 Why This Matters

🌍 Real World

Sorting and reversing lists is useful in many places like organizing names, products, or any data you want to show in order or backwards.

💼 Career

Many jobs require sorting data to make it easier to read or analyze, such as in sales reports, customer lists, or inventory management.

1

Create the list of book titles

Create a list called books with these exact titles in this order: 'The Hobbit', '1984', 'Pride and Prejudice', 'To Kill a Mockingbird', 'Moby Dick'.

Python

# Create the list of books
# Your code here

Need a hint?

Use square brackets [] to create a list and separate items with commas.

2

Sort the list alphabetically

Create a new list called sorted_books that contains the items from books sorted in alphabetical order using the sorted() function.

Python

books = ['The Hobbit', '1984', 'Pride and Prejudice', 'To Kill a Mockingbird', 'Moby Dick']
# Create sorted_books using sorted(books)
# Your code here

Need a hint?

The sorted() function returns a new sorted list without changing the original.

3

Reverse the sorted list

Create a new list called reversed_books that contains the items from sorted_books in reverse order using slicing with [::-1].

Python

books = ['The Hobbit', '1984', 'Pride and Prejudice', 'To Kill a Mockingbird', 'Moby Dick']
sorted_books = sorted(books)
# Create reversed_books by reversing sorted_books using slicing
# Your code here

Need a hint?

Use list[::-1] to reverse a list in Python.

4

Print the sorted and reversed lists

Print the sorted_books list on one line and the reversed_books list on the next line using two separate print() statements.

Python

books = ['The Hobbit', '1984', 'Pride and Prejudice', 'To Kill a Mockingbird', 'Moby Dick']
sorted_books = sorted(books)
reversed_books = sorted_books[::-1]
# Print sorted_books and reversed_books
# Your code here

Need a hint?

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