def main():
    MusicLibraryHelper.loadLibrary("musicLibrary.dat")
    displayLibrary("musicLibrary.dat")
def displayLibrary(musicLibDictionary):
     for key in musicLibDictionary:
        print("Artist:",key)
        print("Albums:",musicLibDictionary[key])
main()

File "C:/Users/18 Spring/ITP115/PycharmProjects/ITP115/ITP 115 Assignment/ITP115_a7_Wang_Huizhi.py", line 22, in displayLibrary
    print(musicLibDictionary[key])
TypeError: string indices must be integers