task5.py

# Contact Management System in Python

contacts = []  # List to store contacts

def add_contact():
    name = input("Enter Name: ")
    phone = input("Enter Phone Number: ")
    email = input("Enter Email: ")
    address = input("Enter Address: ")
    contact = {
        "name": name,
        "phone": phone,
        "email": email,
        "address": address
    }
    contacts.append(contact)
    print("✅ Contact added successfully!\n")

def view_contacts():
    if not contacts:
        print("No contacts found.\n")
        return
    print("\n📒 Contact List:")
    for i, contact in enumerate(contacts, 1):
        print(f"{i}. {contact['name']} - {contact['phone']}")
    print()

def search_contact():
    keyword = input("Enter name or phone number to search: ")
    found = False
    for contact in contacts:
        if keyword.lower() in contact['name'].lower() or keyword in contact['phone']:
            print("\n🔍 Contact Found:")
            print(f"Name: {contact['name']}")
            print(f"Phone: {contact['phone']}")
            print(f"Email: {contact['email']}")
            print(f"Address: {contact['address']}\n")
            found = True
    if not found:
        print("❌ No matching contact found.\n")

def update_contact():
    search_name = input("Enter the name of the contact to update: ")
    for contact in contacts:
        if contact['name'].lower() == search_name.lower():
            print("Leave field blank to keep current value.")
            contact['phone'] = input(f"New Phone ({contact['phone']}): ") or contact['phone']
            contact['email'] = input(f"New Email ({contact['email']}): ") or contact['email']
            contact['address'] = input(f"New Address ({contact['address']}): ") or contact['address']
            print("✅ Contact updated successfully!\n")
            return
    print("❌ Contact not found.\n")

def delete_contact():
    search_name = input("Enter the name of the contact to delete: ")
    for contact in contacts:
        if contact['name'].lower() == search_name.lower():
            contacts.remove(contact)
            print("🗑️ Contact deleted successfully!\n")
            return
    print("❌ Contact not found.\n")

def menu():
    while True:
        print("====== 📱 Contact Management System ======")
        print("1. Add Contact")
        print("2. View Contacts")
        print("3. Search Contact")
        print("4. Update Contact")
        print("5. Delete Contact")
        print("6. Exit")
        
        choice = input("Enter your choice (1-6): ")
        
        if choice == "1":
            add_contact()
        elif choice == "2":
            view_contacts()
        elif choice == "3":
            search_contact()
        elif choice == "4":
            update_contact()
        elif choice == "5":
            delete_contact()
        elif choice == "6":
            print("👋 Exiting... Goodbye!")
            break
        else:
            print("❌ Invalid choice. Please try again.\n")

# Run the program
menu()