5.2

class Genre:
    def __init__(self, genre):
        self.genre = genre

    def __str__(self):
        return f'{self.genre}'


class Band:
    def __init__(self, title):
        self.title = title

    def __str__(self):
        return f'{self.title}'


class Song(Genre, Band):
    def __init__(self, name, genre, title):
        super().__init__(genre)
        self.title = title
        self.name = name

    def get_g(self):
        return self.genre

    def get_t(self):
        return self.title

    def __str__(self):
        return f'{self.name}'


class Album:
    def __init__(self, album, *name):
        self.album = album
        self.storage = list(name)

    def __len__(self):
        return len(self.storage)

    def __getitem__(self, item):
        return self.storage[item]

    def __str__(self):
        a = [f'{self.storage[i]}' for i in range(len(self.storage))]
        return f'{self.album}:\n' + '\n'.join(a)


class Subgenre:
    pass


class Catalog:
    def __init__(self, teg, *catalog):
        self.list = catalog
        self.teg = teg

    def __getitem__(self, item):
        return self.list[item]

    def get_artist(self, other):
        for i in range(len(self.list)):
            if str(self.list[i].get_t()) == str(other):
                print(self.list[i])

    def get_genre(self, other):
        for i in range(len(self.list)):
            if str(self.list[i].get_g()) == str(other):
                print(self.list[i])

    def __str__(self):
        a = [f'{self.list[i]}' for i in range(len(self.list))]
        return f'{self.teg} -> \n' + ',\n'.join(a)


pop = Genre('pop')
rammstein = Band('rammstein')
beatles = Band('beatles')
L = Band('L')
rok = Genre('rok')
rap = Genre('rap')
song, song2, song3 = Song('Senschut', rok, rammstein), Song('Circles', rap, L), Song('Rammstein', rok, rammstein)
s, s2, s3 = Song('Yesterday', rok, beatles), Song('Yellow Submarine', rok, beatles), Song('Ultimate', rap, L)
nice = Album('nice', song, song2)
good = Album('good', s, s2)
catalog = Catalog('GoodTaste', song, song2, song3, s3, s, s2)
print(catalog)