diff --git a/GraphicsScene.pyc b/GraphicsScene.pyc
deleted file mode 100644
index 35431aa0..00000000
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diff --git a/Point.pyc b/Point.pyc
deleted file mode 100644
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diff --git a/Qt.py b/Qt.py
index e1d4b28a..eb63b7c1 100644
--- a/Qt.py
+++ b/Qt.py
@@ -1,5 +1,6 @@
 ## Do all Qt imports from here to allow easier PyQt / PySide compatibility
 
+#from PySide import QtGui, QtCore, QtOpenGL, QtSvg
 from PyQt4 import QtGui, QtCore, QtOpenGL, QtSvg
 if not hasattr(QtCore, 'Signal'):
     QtCore.Signal = QtCore.pyqtSignal
diff --git a/Qt.pyc b/Qt.pyc
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diff --git a/SignalProxy.pyc b/SignalProxy.pyc
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diff --git a/Transform.pyc b/Transform.pyc
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diff --git a/WidgetGroup.pyc b/WidgetGroup.pyc
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diff --git a/__init__.pyc b/__init__.pyc
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diff --git a/debug.pyc b/debug.pyc
deleted file mode 100644
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diff --git a/functions.pyc b/functions.pyc
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diff --git a/graphicsItems/GraphicsItemMethods.py b/graphicsItems/GraphicsItemMethods.py
index 63e95476..49da713b 100644
--- a/graphicsItems/GraphicsItemMethods.py
+++ b/graphicsItems/GraphicsItemMethods.py
@@ -3,7 +3,7 @@ from pyqtgraph.GraphicsScene import GraphicsScene
 from pyqtgraph.Point import Point
 import weakref
 
-class GraphicsItemMethods:
+class GraphicsItemMethods(object):
     """
     Class providing useful methods to GraphicsObject and GraphicsWidget.
     """
@@ -253,4 +253,4 @@ class GraphicsItemMethods:
         
         
         
-        
\ No newline at end of file
+        
diff --git a/graphicsItems/PlotItem/PlotItem.py b/graphicsItems/PlotItem/PlotItem.py
index 2e15f016..c02dbc24 100644
--- a/graphicsItems/PlotItem/PlotItem.py
+++ b/graphicsItems/PlotItem/PlotItem.py
@@ -24,6 +24,7 @@ from pyqtgraph.widgets.FileDialog import FileDialog
 import weakref
 #from types import *
 import numpy as np
+import os
 #from .. PlotCurveItem import PlotCurveItem
 #from .. ScatterPlotItem import ScatterPlotItem
 from .. PlotDataItem import PlotDataItem
diff --git a/graphicsWindows.pyc b/graphicsWindows.pyc
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diff --git a/ptime.pyc b/ptime.pyc
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