13. Basic Contact Book Beginner Projects

1. Basic Features

• Add Contacts: Allow the user to add new contacts with details like name, phone number, and email.
• View Contacts: Display a list of all stored contacts.
• Search Contacts: Let the user search for a contact by name.
• Delete Contacts: Allow the user to delete a contact from the contact book.

---

2. Workflow

1. Adding Contacts:

   • Prompt the user to input contact details such as name, phone number, and email.
   • Store these details in a structured way (e.g., using a dictionary or list).

2. Viewing Contacts:

   • Provide an option for the user to view all saved contacts.
   • Display the contact information in a clean, readable format.

3. Searching Contacts:

   • Allow the user to input a contact name to search for.
   • Display the details of the matching contact, if found.

4. Deleting Contacts:

   • Let the user delete a contact by specifying the name.
   • Confirm before permanently removing the contact.

---

3. Error Handling

• Input Validation:

  • Ensure valid input for contact details, such as checking for valid phone numbers and email formats.
  • Prevent duplicate contacts by checking if the contact already exists.

• Feedback:

  • Inform the user if a contact they are searching for or trying to delete is not found.
  • Provide clear error messages for invalid inputs (e.g., empty names or incorrect phone numbers).

---

4. Optional Features

• Edit Contacts:
  • Provide functionality for the user to update or edit a contact’s details.
• Save to File:
  • Allow users to save their contact book to a file and load it back when the program starts, so the contact book persists between sessions.
• Sort Contacts:
  • Implement sorting (by name, phone number, etc.) to display contacts in a sorted manner.
• Interactive Menu:
  • Create a simple interactive menu to navigate between adding, viewing, searching, deleting, and exiting the program.

---

5. Learning Outcomes

This project will give you practice with:

• Data structures (storing contacts in dictionaries or lists)
• Functions for handling different operations (add, view, delete, search)
• File handling (optional) to save and load contacts
• Error handling and validation of user input