class AddressBook: def __init__(self): self.persons = [] def create_person(self): name = input('name: ') address = input('address: ') phone = input('phone: ') person = {'name': name, 'address': address, 'phone': phone} self.persons.append(person) def list_person(self): for person in self.persons: print('%s,%s,%s' % (person['name'], person['address'], person['phone'])) def query_person(self): name = input('name: ') for person in self.persons: if person['name'] == name: print('%s,%s,%s' % (person['name'], person['address'], person['phone'])) def delete_person(self): name = input('name: ') for person in self.persons: if person['name'] == name: self.persons.remove(person) break def get_choice(): print('1. create person') print('2. list all persons') print('3. query person') print('4. delete person') print('5. quit') choice = input('Enter a number(1-5):') return choice def main(): addressBook = AddressBook() while True: choice = get_choice() if choice == '1': addressBook.create_person() elif choice == '2': addressBook.list_person() elif choice == '3': addressBook.query_person() elif choice == '4': addressBook.delete_person() elif choice == '5': break else: print('Invalid choice') main()