Project 3 - Contact Book.ipynb

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    "# Initialize empty contact list\n",
    "contacts = []\n",
    "\n",
    "def add_contact():\n",
    "  \"\"\"Adds a new contact to the list\"\"\"\n",
    "  name = input(\"Enter Name: \")\n",
    "  phone = input(\"Enter Phone Number: \")\n",
    "  email = input(\"Enter Email (Optional): \")\n",
    "  address = input(\"Enter Address (Optional): \")\n",
    "  contact = {\"name\": name, \"phone\": phone, \"email\": email, \"address\": address}\n",
    "  contacts.append(contact)\n",
    "  print(\"Contact added successfully!\")\n",
    "\n",
    "def view_contacts():\n",
    "  \"\"\"Displays all contacts in the list\"\"\"\n",
    "  if not contacts:\n",
    "    print(\"No contacts found!\")\n",
    "  else:\n",
    "    print(\"Contacts:\")\n",
    "    for contact in contacts:\n",
    "      print(f\"Name: {contact['name']}, Phone: {contact['phone']}\")\n",
    "\n",
    "def search_contact():\n",
    "  \"\"\"Searches for a contact by name or phone number\"\"\"\n",
    "  search_term = input(\"Enter name or phone number to search: \")\n",
    "  found = False\n",
    "  for contact in contacts:\n",
    "    if search_term.lower() in contact[\"name\"].lower() or search_term.lower() in contact[\"phone\"].lower():\n",
    "      print(\"Contact:\")\n",
    "      for key, value in contact.items():\n",
    "        print(f\"{key.title()}: {value}\")\n",
    "      found = True\n",
    "      break\n",
    "  if not found:\n",
    "    print(\"Contact not found!\")\n",
    "\n",
    "def update_contact():\n",
    "  \"\"\"Updates an existing contact\"\"\"\n",
    "  name = input(\"Enter name of contact to update: \")\n",
    "  found = False\n",
    "  for i, contact in enumerate(contacts):\n",
    "    if contact[\"name\"] == name:\n",
    "      updated_name = input(\"Update name (Leave blank if no change): \") or contact[\"name\"]\n",
    "      updated_phone = input(\"Update phone number (Leave blank if no change): \") or contact[\"phone\"]\n",
    "      updated_email = input(\"Update email (Leave blank if no change): \") or contact[\"email\"]\n",
    "      updated_address = input(\"Update address (Leave blank if no change): \") or contact[\"address\"]\n",
    "      contacts[i] = {\"name\": updated_name, \"phone\": updated_phone, \"email\": updated_email, \"address\": updated_address}\n",
    "      print(\"Contact updated successfully!\")\n",
    "      found = True\n",
    "      break\n",
    "  if not found:\n",
    "    print(\"Contact not found!\")\n",
    "\n",
    "def delete_contact():\n",
    "  \"\"\"Deletes a contact\"\"\"\n",
    "  name = input(\"Enter name of contact to delete: \")\n",
    "  found = False\n",
    "  for i, contact in enumerate(contacts):\n",
    "    if contact[\"name\"] == name:\n",
    "      del contacts[i]\n",
    "      print(\"Contact deleted successfully!\")\n",
    "      found = True\n",
    "      break\n",
    "  if not found:\n",
    "    print(\"Contact not found!\")\n",
    "\n",
    "def main():\n",
    "  \"\"\"Main loop for user interaction\"\"\"\n",
    "  while True:\n",
    "    print(\"\\nContact Book Menu:\")\n",
    "    print(\"1. Add Contact\")\n",
    "    print(\"2. View Contacts\")\n",
    "    print(\"3. Search Contact\")\n",
    "    print(\"4. Update Contact\")\n",
    "    print(\"5. Delete Contact\")\n",
    "    print(\"6. Exit\")\n",
    "    choice = input(\"Enter your choice: \")\n",
    "\n",
    "    if choice == '1':\n",
    "      add_contact()\n",
    "    elif choice == '2':\n",
    "      view_contacts()\n",
    "    elif choice == '3':\n",
    "      search_contact()\n",
    "    elif choice == '4':\n",
    "      update_contact()\n",
    "    elif choice == '5':\n",
    "      delete_contact()\n",
    "    elif choice == '6':\n",
    "      print(\"Exiting...\")\n",
    "      break\n",
    "    else:\n",
    "      print(\"Invalid choice!\")\n",
    "\n",
    "if __name__ == \"__main__\":\n",
    "  main()"
   ]
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