Fixed an error on the values of two list view customizations

envLAB01/jaysonlim_music/Homepage/admin.py

@@ -14,14 +14,14 @@ class AlbumAdmin(admin.ModelAdmin):
 
     list_display = ('album_name', 'description', 'release_date', 'label', 'song_count')
     search_fields = ('album_name', 'description', 'label')
-    list_filter = ('album_name')
+    list_filter = ('album_name',)
 
 class SongAdmin(admin.ModelAdmin):
     model = Song
 
     list_display = ('song_title', 'song_length', 'music_video')
     search_fields = ('song_title', 'lyrics')
-    list_filter = ('song_title')
+    list_filter = ('song_title',)
 
 admin.site.register(Artist, ArtistAdmin)
 admin.site.register(Album, AlbumAdmin)