Library-management-system

This Python code creates a Library Management System using Tkinter for the graphical user interface (GUI) and SQLite for database management. This application allows users to add, search, update, and delete book records, making it a useful tool for managing a library’s book inventory.

Key Components:

  1. Database Setup:
    • The code connects to an SQLite database named library.db and creates a table books (if it doesn’t already exist) to store book details like title, author, genre, and isbn.
    • Each book record is assigned a unique id as the primary key.
  2. Adding a Book:
    • The add_book function retrieves the book details entered by the user (title, author, genre, and ISBN) and inserts this data into the database.
    • It validates that all fields are filled, commits the data to the database, and then displays a success message. The show_books function is called to update the list of books, and fields are cleared after each entry.
  3. Searching for a Book:
    • The search_book function allows users to search for books based on partial matches in any field (title, author, genre, or ISBN).
    • It executes a query to retrieve matching records and updates the displayed book list with the results.
  4. Updating Book Records:
    • The update_book function lets users modify details of a selected book.
    • After the user selects a book from the list and updates the fields, this function retrieves the id of the selected book and updates the database entry with the new values.
  5. Deleting a Book:
    • The delete_book function allows users to delete a selected book record from the database.
    • It prompts the user to select a book from the displayed list, retrieves the book id, and deletes the entry from the database.
  6. Displaying Book Records:
    • The show_books function displays all book records in a list box widget, refreshing whenever a new entry is added, updated, or deleted.
    • The update_book_list function manages how records are displayed in the list box, formatting each entry for readability.
  7. Search Functionality:
    • A search entry field and a “Search” button allow users to filter and view specific books based on keywords, enhancing the user experience by allowing easy access to specific records.
  8. GUI Layout:
    • The GUI is organized using Tkinter widgets. Labels, entries, and buttons are used for input and actions, while a list box displays the list of books.
    • Buttons for “Add Book,” “Update Book,” and “Delete Book” are provided, as well as a search field and button.
  9. App Lifecycle:
    • The program opens a connection to the database at the start and closes it automatically when the app is closed (conn.close()), ensuring data integrity.

Summary:

This Library Management System is a beginner-friendly, straightforward application for managing a library’s inventory, offering essential functions for adding, viewing, updating, and deleting book records. The app’s use of SQLite ensures persistent data storage, and Tkinter provides a user-friendly interface for interacting with the database.