Python Contact Directory

A simple command-line contact directory application developed with Python.

The program allows users to add, search, update, delete, and display contacts through an interactive menu.

Features

• Add a new contact
• Search for a contact by name
• Update an existing phone number
• Delete a contact
• Display all contacts in alphabetical order
• Prevent duplicate contacts
• Validate empty names and phone numbers
• Handle invalid menu options

Technologies Used

• Python 3
• Jupyter Notebook
• Visual Studio Code

Project Structure

python-contact-directory/
├── contact_directory.ipynb
├── .gitignore
└── README.md

How It Works

Contacts are stored in a Python dictionary:

annuaire = {
    "Contact Name": "Phone Number"
}

Each contact name is used as a unique key, while the corresponding phone number is stored as its value.

Running the Project

1. Clone or download the repository.
2. Open contact_directory.ipynb with Jupyter Notebook or Visual Studio Code.
3. Select a Python kernel.
4. Run the notebook cells in order.
5. Use the interactive menu displayed in the final cell.

Available Options

1. Add a contact
2. Search for a contact
3. Update a phone number
4. Delete a contact
5. Display all contacts
6. Quit

Possible Future Improvements

• Save contacts in a file or database
• Add email addresses and contact categories
• Add phone-number format validation
• Import and export contacts
• Add a graphical user interface
• Add unit tests
• Create a web version of the application

Author

Ayoub Bernannou

Master's degree in Software Engineering and Intelligent Systems
Full-Stack Java and Angular Developer