Base de datos de la biblioteca - Python Programming Exercise

# Crear una lista vacía para almacenar los libros
books = []

while True:
    # Mostrar el menú de opciones
    print("\nMenú:")
    print("1. Agregar un libro")
    print("2. Mostrar todos los libros")
    print("3. Buscar un libro por título")
    print("4. Eliminar un libro por número")
    print("5. Salir")
    
    # Solicitar al usuario una opción
    option = input("Selecciona una opción (1-5): ")
    
    if option == "1":
        # Agregar un libro
        title = input("Introduce el título del libro: ")
        author = input("Introduce el autor del libro: ")
        books.append((title, author))
        print("Libro agregado exitosamente.")
    
    elif option == "2":
        # Mostrar todos los libros
        if not books:
            print("No hay libros disponibles.")
        else:
            print("\nTodos los libros:")
            for i, (title, author) in enumerate(books, 1):
                print(f"Libro {i}: {title} por {author}")
    
    elif option == "3":
        # Buscar un libro por título
        title_to_search = input("Introduce el título a buscar: ")
        found_books = [book for book in books if title_to_search.lower() in book[0].lower()]
        
        if found_books:
            print("\nLibros encontrados:")
            for i, (title, author) in enumerate(found_books, 1):
                print(f"Libro {i}: {title} por {author}")
        else:
            print("No se encontraron libros con ese título.")
    
    elif option == "4":
        # Eliminar un libro por número
        if not books:
            print("No hay libros para eliminar.")
        else:
            # Mostrar los libros antes de eliminar
            print("\nLibros actuales:")
            for i, (title, author) in enumerate(books, 1):
                print(f"Libro {i}: {title} por {author}")
            
            try:
                book_number = int(input("Introduce el número del libro a eliminar: "))
                if 1 <= book_number <= len(books):
                    books.pop(book_number - 1)  # Eliminar el libro
                    print("Libro eliminado exitosamente.")
                else:
                    print("Número de libro inválido.")
            except ValueError:
                print("Entrada inválida. Por favor, ingresa un número de libro válido.")
    
    elif option == "5":
        # Salir del programa
        print("Saliendo del programa.")
        break
    
    else:
        print("Opción inválida. Por favor, selecciona una opción entre 1 y 5.")

 Output

Menu:
1. Add a book
2. Show all books
3. Search for a book by title
4. Delete a book by number
5. Exit
Select an option (1-5): 1
Enter the book title: Don Quixote
Enter the author of the book: Miguel de Cervantes
Book added successfully.

Menu:
1. Add a book
2. Show all books
3. Search for a book by title
4. Delete a book by number
5. Exit
Select an option (1-5): 1
Enter the book title: One Hundred Years of Solitude
Enter the author of the book: Gabriel García Márquez
Book added successfully.

Menu:
1. Add a book
2. Show all books
3. Search for a book by title
4. Delete a book by number
5. Exit
Select an option (1-5): 2

All books:
Book 1: Don Quixote by Miguel de Cervantes
Book 2: One Hundred Years of Solitude by Gabriel García Márquez

Menu:
1. Add a book
2. Show all books
3. Search for a book by title
4. Delete a book by number
5. Exit
Select an option (1-5): 3
Enter the title to search for: One

Books found:
Book 1: One Hundred Years of Solitude by Gabriel García Márquez

Menu:
1. Add a book
2. Show all books
3. Search for a book by title
4. Delete a book by number
5. Exit
Select an option (1-5): 4

Current books:
Book 1: Don Quixote by Miguel de Cervantes
Book 2: One Hundred Years of Solitude by Gabriel García Márquez
Enter the number of the book to delete: 1
Book deleted successfully.

Menu:
1. Add a book
2. Show all books
3. Search for a book by title
4. Delete a book by number
5. Exit
Select an option (1-5): 2

All books:
Book 1: One Hundred Years of Solitude by Gabriel García Márquez

Menu:
1. Add a book
2. Show all books
3. Search for a book by title
4. Delete a book by number
5. Exit
Select an option (1-5): 5
Exiting the program.