Book Inventory Management - Python Code - Without Functions

Book_Inventory_Management.py

"""
author: Sai Ramana P B
email: [email protected]

Problem: Book Inventory Management

You are tasked with developing a program to manage a bookstore's inventory using dictionaries and lists. The program should allow the user to perform the following operations:

1. Add a book: The user should be able to enter the details of a book (title, author, genre, and quantity) and add it to the inventory.
2. Search for a book: Given a book title, the program should search the inventory and display the details of the book if it exists, including the quantity available.
3. Update book quantity: The user should be able to update the quantity of a book in the inventory. If the book does not exist, an appropriate message should be displayed.
4. Remove a book: The user should be able to remove a book from the inventory. If the book does not exist, an appropriate message should be displayed.
5. Display all books: The program should display a list of all books in the inventory, along with their details.
6. Optional You can expand this problem by incorporating additional functionalities like sorting the books, handling multiple genres, or implementing advanced search options.


Implement the program using appropriate data structures such as dictionaries and lists to store the book information. Use functions to modularize the code and allow for easier maintenance.
"""

inventory = []

while True:
    print("\n=== Book Inventory Management ===")
    print("1. Add a book")
    print("2. Search for a book")
    print("3. Update book quantity")
    print("4. Remove a book")
    print("5. Display all books")
    print("6. Quit")

    choice = input("Enter your choice (1-6): ")

    if choice == "1":
        title = input("Enter the book title: ")
        author = input("Enter the author name: ")
        genre = input("Enter the genre: ")
        try:
            quantity = int(input("Enter the quantity: "))
        except ValueError:
            print("Invalid quantity. Please try again.")
            continue

        book = {
            "title": title,
            "author": author,
            "genre": genre,
            "quantity": quantity
        }

        inventory.append(book)
        print("Book added successfully!")

    elif choice == "2":
        title = input("Enter the book title to search: ")

        for book in inventory:
            if book["title"].lower() == title.lower():
                print("\nBook Found:")
                print("Title:", book["title"])
                print("Author:", book["author"])
                print("Genre:", book["genre"])
                print("Quantity:", book["quantity"])
                break
        else:
            print("Book not found in the inventory.")

    elif choice == "3":
        title = input("Enter the book title to update quantity: ")

        for book in inventory:
            if book["title"].lower() == title.lower():
                try:
                    quantity = int(input("Enter the new quantity: "))
                except ValueError:
                    print("Invalid quantity. Please try again.")
                    break
                else:
                    book["quantity"] = quantity
                    print("Quantity updated successfully.")
                    break
        else:
            print("Book not found in the inventory.")

    elif choice == "4":
        title = input("Enter the book title to remove: ")

        for book in inventory:
            if book["title"].lower() == title.lower():
                inventory.remove(book)
                print("Book removed successfully.")
                break
        else:
            print("Book not found in the inventory.")

    elif choice == "5":
        if len(inventory) == 0:
            print("Inventory is empty.")
        else:
            print("\nBook Inventory:")
            print("Title\t\t Author\t\t Genre\t\t Quantity")
            for book in inventory:
                print("{0}\t\t {1}\t\t {2}\t\t {3}".format(
                    book["title"], book["author"], book["genre"], book["quantity"]))

    elif choice == "6":
        print("Thank you for using the Book Inventory Management system.")
        break

    else:
        print("Invalid choice. Please try again.")