diff --git a/wxPython/src/wx.i b/wxPython/src/wx.i
index 8aa1b43abf..0f7cd3012e 100644
--- a/wxPython/src/wx.i
+++ b/wxPython/src/wx.i
@@ -54,8 +54,10 @@
 
 #define __version__ "0.0.0"   // The real value is now in setup.py...
 
+%readonly
 wxPoint     wxDefaultPosition;
 wxSize      wxDefaultSize;
+%readwrite
 
 //---------------------------------------------------------------------------
 //---------------------------------------------------------------------------