class Skiva:

    def __init__(self, artist, titel, antal, pris):
        self.artist = artist
        self.titel = titel
        self.antal = antal
        self.pris = pris

    def kopIn(self, order):
        self.antal = self.antal + order

    def salj(self):
        self.antal = self.antal -1

    def andraPris(self, nyttPris):
        self.pris = nyttPris
        
class Register:

    def __init__(self):
        self.skivorna = list()

    def lasFil(self):
        print "lasFil"
            

    def sparaFil(self):
        print "sparaFil"
            
    def sortera(self):
        print "sortera"

    def lista(self,skivorna):
        print "lista"
            
    # returnerar index för 
    def find(self,artist):
        print "find"


    def addera(self, artist):
        print "addera"
        
    def fyllPaLager(self):
        print "fyllPaLager"

    def kassa(self):
        print "kassa"
        
    def info(self):
        print "info"

    def radera(self):
        print "radera"
            
    def meny(self):
        print "meny"


# Huvudprogram


r = Register()
r.lasFil()
r.meny()
r.sparaFil()