--- a/python/storage.py	Wed May 20 12:04:22 2015 +0200
+++ b/python/storage.py	Wed May 20 13:57:47 2015 +0200
@@ -3,11 +3,10 @@
 '''Various utilities to save and load data'''
 
 import utils, moving, events, indicators
+from base import VideoFilenameAddable
 
 import sqlite3, logging
 
-__metaclass__ = type
-
 
 commentChar = '#'
 
@@ -867,13 +866,6 @@
 # Utils to read .ini type text files for configuration, meta data...
 #########################
 
-class VideoFilenameAddable:
-    'Base class with the capability to attach a video filename'
-
-    def setVideoFilename(self, videoFilename):
-        self.videoFilename = videoFilename
-
-
 class ProcessParameters(VideoFilenameAddable):
     '''Class for all parameters controlling data processing: input,
     method parameters, etc. for tracking, classification and safety
@@ -929,7 +921,7 @@
         if filename is not None:
             self.loadConfigFile(filename)
 
-class SceneParameters:
+class SceneParameters(object):
     def __init__(self, config, sectionName):
         from ConfigParser import NoOptionError
         from ast import literal_eval