Master AI Engineering - Python Project - ContactEase Solutions

ContactEase Solutions is a command-line application for managing contacts, developed in Python using Object-Oriented Programming principles. It provides a simple and intuitive interface to add, view, edit, delete, and search contacts, as well as the ability to save and load data to JSON files.

Project Requirements

• OOP in Python: Implementation of OOP concepts for a solid and scalable structure.
• Data Structure: Creation of an efficient data structure to store contacts.
• User Interface: Development of an interactive and easy-to-use command-line interface.
• Features:
  • Add a Contact
  • View Contacts
  • Edit a Contact
  • Delete a Contact
  • Search for a Contact by first or last name
  • Save and Load contacts to a file

How to Use

1. Run the Code: Execute all the cells in the notebook in order.
2. Main Menu: Once the program starts, a main menu will be displayed with the following options:
   • 1. Add new Contacts: Add new contacts to the address book.
   • 2. Show all the Contacts: Display all contacts in the address book.
   • 3. Edit a Contact: Modify the details of an existing contact.
   • 4. Delete a Contact: Remove a contact from the address book.
   • 5. Search a Contact using first name and/or last name: Search for contacts by first and/or last name.
   • 6. Save the Contacts in a file: Save the address book to a JSON file.
   • 7. Load Contacts from a file: Load an address book from a JSON file.
   • 8. Clear output: Clear the console output.
   • 0. EXIT: Exit the application.
3. Interaction: Follow the on-screen instructions to interact with the application.

Code Structure

The code is organized into the following classes and functions:

• Contact Class: Represents a single contact with first name, last name, phone number, and email. Includes methods to access and modify contact data.
• Address_book Class: Manages a collection of Contact objects. Includes methods to add, search, edit, and delete contacts, as well as saving and loading the address book.
• Main Functionalities: Separate functions (main_add_contact, main_show_all_contacts, etc.) implement the different main menu options, interacting with the user and utilizing the Address_book class.
• Main: The main section of the code that initializes the address book and handles the interactive menu loop.

Data Validation

The _validate_contact_data function is used to validate the data entered for a contact, ensuring that the first and last names are not empty, the phone number is 10 digits, and the email, if provided, has a valid format.

Saving and Loading

The saving and loading functionalities use the JSON format to store contact data, allowing the address book to be persisted between different sessions.