Instance reference - Exercise 1

'''
Problem: Notice that song_1 and song_2 have the same artist and label. That means they should each have the SAME instance of artist: do not create separate instances of artist for each song.
'''

class Artist:
    def __init__(self, name, label):
        self.name = name
        self.label = label

class Song:
    def __init__(self, name, album, year, artist):
        self.name = name
        self.album = album
        self.year = year
        self.artist = artist

#Write your code here!
artist1 = Artist("Taylor Swift", "Big Machine Records, LLC")
song_1 = Song("You Belong With Me", "Fearless", 2008, artist1)
song_2 = Song("All Too Well", "Red", 2012, artist1)
#Alternative way to reference song_1 artist since they belong to the same artist
#song_2 = Song("All Too Well", "Red", 2012, song_1.artist)

#We can also create a variable for artist2 and do it the same way as I did for song_1
song_3 = Song("Up We Go", "Midnight Machines", 2016, Artist("LiGHTS", "Warner Bros. Records Inc."))

#Feel free to add code to test your code below.
print(song_1.artist.name)
print(song_2.artist.label)
print(song_3.artist.name)