Python-сообщество

 movies = []
class Rating():
    def __init__(self,ratings):
        self.ratings = ratings
    def get_avg_rating(self,average):
        self.average = get_avg_rating_as_float()
        if self.average > 0:
            return str(self.average)
        return 'Без рейтинга'
    
class Movie():
  
    def __init__(self,ratings,rating):
       self.rating = rating
       self.ratings = []
    def get_avg_rating_as_float(self):
        if len(item.rating) > 0:
            self.average = sum(item.rating.values()) / len(item.rating)        
            return average
        return 0   
    
    # def rate(self):
        
    
class MovieList():
    
    def __init__(self):
        self.movies = []
    def list(self):
        self.movies.sort(key=lambda movie: movie.name)
        for item in self.movies:
            self.average = get_avg_rating()
            print(f"{item.name:<25} {average:>14}")
    def list_average(self):
        self.movies = sorted(self.movies, key=self.get_avg_rating_as_float, reverse=True)
        for item in self.movies:
            average = get_avg_rating(item)
            print(f"{item.name:<25} {average:>14}")
    def find(self, name=None):
        
        name = input("Введите название фильма:\n> ")
        for item in self.movies:
            if item == name:
                return item
        return None
    def show(self):
        movie = self.find()
        if movie:
            print(f"{movie.name:^35}")
            for key, value in movie.items():
                print(f"{key:<20} {value:>14.1f}")
            average = get_avg_rating(movie)
            print(f"{'Средний рейтинг':<20} {average:>14}")
        else:
            print("Фильм не найден")
    def add(self):
        name = input("Введите название фильма:\n> ")
        movie = name
        if  movie == name:
            new_movie = MovieList()
            self.movies.append(new_movie)
            print("Фильм добавлен!")
        else:
            print("Такой фильм уже есть.")
    def rate(self):
        movie = self.find()
        if movie in self.movies:
            name = input("Введите ваше имя:\n> ")
        rating = float(input("Введите рейтинг:\n> "))
        if rating == 0:
                if movie.ratings.get(name):
                    movie.ratings.pop(name)
        elif rating < 1 or rating > 10:
                print("Рейтинг должен быть от 1 до 10!")
        else:
             movie[name] = rating
        
    def delete(self):
        movie = self.find()
        if movie:
            self.movies.remove(movie)
            print("Фильм удалён")
        else:
            print('Фильм не найден')
# def save(movies):
#     with open('movies.txt', 'w') as m:
#         for movie in movies:
#             ratings = []
#             for name in movie['ratings']:                
#                 ratings_str = f"{name},{movie['ratings'][name]}"
#                 ratings.append(ratings_str)
#             all_ratings_str = ';'.join(ratings)            
#             movie_str = f'{movie["name"]}|{all_ratings_str}\n'
#             m.write(movie_str)
# def load(movies):    
#     with open('movies.txt', 'r') as m:
#         for line in m:
#             name, all_ratings_str = line.strip().split('|')
            
#             print(name, all_ratings_str)
#             if all_ratings_str != '':
#                 ratings_strings = all_ratings_str.split(';')
#                 ratings = {}
#                 for key in ratings_strings:
#                     user_name, mark = key.split(',')
#                     rating = {
#                         user_name: float(mark)                    
#                     }
#                     ratings.update(rating)        
#             films = {
#                 'name': name,                
#                 'ratings': ratings
#             }            
#             movies.append(films)            
        
    @staticmethod
    
    def show_menu():
       print("""     Введите команду
* list - показать список фильмов
* average - показать список фильмов с сортировкой по оценке
* find - найти фильм
* add  - добавить новый фильм
* rate - добавить рейтикн к фильму
* delete - удалить фильм
* exit - to exit""")
class App():
    def __init__(self):
        self.movie_list = MovieList()
        
    def commands(self,command):    
        if command == 'list':
            self.movie_list.list()
        if command == 'average':
            self.movie_list.list_average()
        elif command == 'find':
            self.movie_list.show()
        elif command == 'add':
            self.movie_list.add()
            # save(movies)
        elif command == 'rate':
            self.movie_list.rate()
            # save(movies)
        elif command == 'del':
            self.movie_list.delete()
            # save(movies)
    
    def run(self):
        print("Добро пожаловать в телефонную книгу")
        MovieList.show_menu()
        
        while True:
            command = input("\nВведите команду: ")
            if command == 'exit':
                print("Выход")
                break
            else:
                self.commands(command) 
app = App()
app.run()

 movies = []
def save(movies):
    with open('movies.txt', 'w') as m:
        for movie in movies:
            ratings = []
            for name in movie['ratings']:                
                ratings_str = f"{name},{movie['ratings'][name]}"
                ratings.append(ratings_str)
            all_ratings_str = ';'.join(ratings)            
            movie_str = f'{movie["name"]}|{all_ratings_str}\n'
            m.write(movie_str)
def load(movies):    
    with open('movies.txt', 'r') as m:
        for line in m:
            name, all_ratings_str = line.strip().split('|')
            
            print(name, all_ratings_str)
            if all_ratings_str != '':
                ratings_strings = all_ratings_str.split(';')
                ratings = {}
                for key in ratings_strings:
                    user_name, mark = key.split(',')
                    rating = {
                        user_name: float(mark)                    
                    }
                    ratings.update(rating)        
            films = {
                'name': name,                
                'ratings': ratings
            }            
            movies.append(films)            
def get_avg_rating(item):
    average = get_avg_rating_as_float(item)
    if average > 0:
        return str(average)
    return 'Без рейтинга'
def get_avg_rating_as_float(item):
    if len(item['ratings']) > 0:
        average = sum(item['ratings'].values()) / len(item['ratings'])        
        return average
    return 0
    
def list(movies):
    movies.sort(key=lambda movie: movie['name'])
    for item in movies:
        average = get_avg_rating(item)
        print(f"{item['name']:<25} {average:>14}")
def list_average(movies):
    movies = sorted(movies, key=get_avg_rating_as_float, reverse=True)
    for item in movies:
        average = get_avg_rating(item)
        print(f"{item['name']:<25} {average:>14}")
def find(movies, name=None):
    if not name:
        name = input("Введите название фильма:\n> ")
    for item in movies:
        if item['name'] == name:
            return item
    return None
def show(movies):
    movie = find(movies)
    if movie:
        print(f"{movie['name']:^35}")
        for key, value in movie['ratings'].items():
            print(f"{key:<20} {value:>14.1f}")
        average = get_avg_rating(movie)
        print(f"{'Средний рейтинг':<20} {average:>14}")
    else:
        print("Фильм не найден")
def add(movies):
    name = input("Введите название фильма:\n> ")
    movie = find(movies, name)
    if not movie:
        new_movie = {'name': name, 'ratings': {}}
        movies.append(new_movie)
        print("Фильм добавлен!")
    else:
        print("Такой фильм уже есть.")
def rate(movies):
    movie = find(movies)
    if movie is not None:
        name = input("Введите ваше имя:\n> ")
        rating = float(input("Введите рейтинг:\n> "))
        if rating == 0:
            if movie['ratings'].get(name):
                movie['ratings'].pop(name)
        elif rating < 1 or rating > 10:
            print("Рейтинг должен быть от 1 до 10!")
        else:
            movie['ratings'][name] = rating
def delete(movies):
    movie = find(movies)
    if movie:
        movies.remove(movie)
        print("Фильм удалён")
    else:
        print('Фильм не найден')
def help():
    print("""     Введите команду
* list - показать список фильмов
* average - показать список фильмов с сортировкой по оценке
* find - найти фильм
* add  - добавить новый фильм
* rate - добавить рейтикн к фильму
* delete - удалить фильм
* exit - to exit""")
def menu():
    help()
    while True:        
        print("\nInput command: ")
        command = input('> ')
        if command == 'list':
            list(movies)
        if command == 'average':
            list_average(movies)
        elif command == 'find':
            show(movies)
        elif command == 'add':
            add(movies)
            save(movies)
        elif command == 'rate':
            rate(movies)
            save(movies)
        elif command == 'delete':
            delete(movies)
            save(movies)
        elif command == 'exit':
            break
        else:
            print("Неизвестная команда")
   
menu()