Contact Book

contacts = []

def add_contact():
    name =input("Enter the name: ")
    mobilenumber = input("Enter the mobile no: ")
    emailid = input("Enter the emailis: ")
    address = input("Enter the address: ")

    contact = {'name':name, 'mobileno':mobilenumber, 'emailid':emailid, 'address':address}
    contacts.append(contact)
    print("Contact added successfully!")

def view_contact_list():
    print("Contacts: ")
    for idx, contact in enumerate(contacts, 1):
        print(f"{idx}. {contact['name']}: {contact['mobileno']}")

def search_contact(query):
    results = []
    for contact in contacts:
        if query.lower() in contact['name'].lower() or query in contact['mobileno']:
            results.append(contact)
    return results

def update_contact():
    view_contact_list()
    if contacts:
        idx = int(input("Enter the index of the contact to update: "))
        if 1 <= idx <= len(contacts):
            contact = contacts[idx - 1]
            print(f"Updating contact: {contact['name']}")
            contact['name'] = input("Enter updated name: ")
            contact['mobileno'] = input("Enter updated phone number: ")
            contact['email'] = input("Enter updated email: ")
            contact['address'] = input("Enter updated address: ")
            print("Contact updated successfully!")
        else:
            print("Invalid index!")
    else:
        print("No contacts to update!")

def delete_contact():
    view_contact_list()
    if contacts:
        idx = int(input("Enter the index of the contact to delete: "))
        if 1 <= idx <= len(contacts):
            contact = contacts.pop(idx - 1)
            print(f"Contact '{contact['name']}' deleted successfully!")
        else:
            print("Invalid index!")
    else:
        print("No contacts to delete!")

def main():
    while True:
        print("\nMenu:")
        print("1. Add Contact")
        print("2. View Contact List")
        print("3. Search Contact")
        print("4. Update Contact")
        print("5. Delete Contact")
        print("6. Exit")
        
        choice = input("Enter your choice: ")
        
        if choice == '1':
            add_contact()
        elif choice == '2':
            view_contact_list()
        elif choice == '3':
            query = input("Enter name or phone number to search: ")
            results = search_contact(query)
            if results:
                print("Search results:")
                for contact in results:
                    print(f"Name: {contact['name']}, Phone: {contact['mobileno']}")
            else:
                print("No matching contacts found.")
        elif choice == '4':
            update_contact()
        elif choice == '5':
            delete_contact()
        elif choice == '6':
            print("Exiting program...")
            break
        else:
            print("Invalid choice!")

if __name__ == "__main__":
    main()