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64 lines
2.5 KiB
Markdown
64 lines
2.5 KiB
Markdown
# Task
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<!-- toc -->
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- [Data structure](#data-structure)
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- [Functionality](#functionality)
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* [Add book](#add-book)
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* [Search by ISBN](#search-by-isbn)
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* [Search by title or author](#search-by-title-or-author)
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* [Book list](#book-list)
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* [Delete book](#delete-book)
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- [User interface](#user-interface)
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- [Submission](#submission)
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<!-- tocstop -->
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## Data structure
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- [ ] The inventory list is stored as a Python dictionary.
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- [ ] The original list of books can be *hard coded* into the program to avoid having to re-enter the data each time.
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- [ ] At least the following information is stored for each book: `title`, `author`, `ISBN`, `price` and `quantity in stock`.
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- [ ] Information for each book is stored in a separate dictionary
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- [ ] The keys of the inventory dictionary are the `ISBN` codes and its values are the dictionaries containing the information about the book.
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## Functionality
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### Add book
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- [ ] The user should be given the possibility to add a new book to the inventory.
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- [ ] When adding a book, make sure that its ISBN number is unique. If such an ISBN number already exists in the list, display an error message.
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### Search by ISBN
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- [ ] Users should be allowed to search for a book by its ISBN number.
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- [ ] If the book was found, display information about it.
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- [ ] If the book was not found, display an error message.
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### Search by title or author
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- [ ] Allow users to search for a book by name in its title or author field. The result is a list of books that match the search criteria.
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### Book list
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- [ ] Display a list of all books, showing the following information for each book: `title`, `author`, `ISBN`, `quantity in stock`.
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### Delete book
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- [ ] Delete a book with a given ISBN number from the list.
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- [ ] To inform the user that the book was successfully deleted or that the ISBN number was not found.
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## User interface
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For a score of 8, it is sufficient to implement a simple textual interface.
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For a higher score, develop a program with a graphical user interface (using Python libraries such as `Tkinter`, `PyQt` or `PySide`).
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You can also use the `rich` library, which allows you to create an *advanced* text format interface.
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## Submission
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Submit an archive with the source code of a Python program that implements the requested functionality.
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The program code must be properly documented (with comments and meaningful variable names).
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If external libraries are used, include in the archive a `requirements.txt` file containing the names and version numbers of these libraries.
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