We are now finally able to model anAlbum. An album should be initialized with anArtistand a title.

It should have the following properties:

1.artist: AnArtistobject representing the Artist of the album.

2.title: Astrrepresenting the title of the album.

3.songs: Alistof songs in the album (Initially it is empty).

In addition, it should provide the following method:

1.add_song(self, song): Adds song (of classSong) to the album.

2.total_runtime(self): Returns the total runtime (of classDuration) of the album.

The example tests use aBandclass defined as follows:

class Band(Artist): def __init__(self, name, dob, members): super().__init__(name, dob) self.members = members def formation_age(self): return super().age() def age(self): total_age = 0 for member in self.members: total_age += member.age() return total_age / len(self.members) 

NOTE:You may assume that theArtist,Duration,SongandBandclasses have been defined. You only need to submit code for theAlbumclass.

NOTE:Please only include the definition of theAlbumclass and nothing else. In particular, please remove all test cases you have added or those provided in the template. On submission, if you see any errors aboutArtist,Duration,SongorBandnot defined, like the following:

# Traceback (most recent call last): # in  # NameError: name 'Artist' is not defined 

then most probably you have included some test cases using the above mentioned classes. Please remove the offending code and resubmit.

song definition

class Song(object):

def __init__(self, artist, title, duration):

self.title = title

self.artist = artist

self.duration = duration

pass

def get_artist(self):

return self.artist

pass

def get_title(self):

return self.title

pass

def get_duration(self):

return self.duration

pass

class Duration(object):

def __init__(self, minutes, seconds):

self.minutes = minutes

self.seconds = seconds

def get_minutes(self):

if self.seconds > 60:

return self.minutes + 1

else:

return self.minutes

def get_seconds(self):

if self.seconds > 60:

return self.seconds - 60

else:

return self.seconds

@property

def total_seconds(self):# This part is wrong

return 60 * (self.get_minutes()) + self.get_seconds()

def __str__(self):

string = ""

if self.minutes < 10:

string = "0"

string += str(self.get_minutes())

string += ":"

if self.seconds < 10:

string += "0"

string += str(self.get_seconds())

return string

def __add__(self, object):

p = int(self.get_minutes() + object.get_minutes())

q = int(self.get_seconds() + object.get_seconds())

while q > 60:

p = p + 1

q = q - 60

return Duration(p,q)

i have the following code so far but am struggling with total runtime

class Album(object):

def __init__(self, artist, title):

self.artist = artist

self.title = title

self.songs = list()

def add_song(self, song):

self.songs.append(song)

def total_runtime(self):

time = 0

for song in self.songs:

time += song.get_Duration()

d = time

return Duration(d)