)
user_choice = input("\nWhat do you want to do?: ")
if user_choice == "a":
contact_name = input("Enter contact name: ")
if len(contact_name.strip(" ")) == 0:
print("Names cannot be empty.")
continue
elif contacts.contact_exists(contact_name):
print("Contact already exists.")
continue
else:
contact_phone = input("Enter contact phone: ")
if len(contact_phone.strip(" ")) == 0:
print("Numbers cannot be empty.")
continue
else:
contact = {"name": contact_name, "phone": contact_phone}
contacts.add_contacts(contact)
print("Contact added.\n")
continue
elif user_choice == "d":
contacts.delete_contact()
continue
elif user_choice == "s":
contacts.save_excel(f"{input('File name: ')}.xlsx")
break
else:
print("Invalid input. Value must be one of type 'a', 'b' or 'c'.")
except:
break
