debugging on windows

[Robin Becker]

Using

Python 3.3.3 (v3.3.3:c3896275c0f6, Nov 18 2013, 21:18:40) [MSC v.1600 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.

to run a tkinter + pmw2 application I have the following error on windows xp sp3

Unhandled exception at 0x1e0aebb8 in python.exe: 0xC0000005: Access violation reading location 0x00000048.

the main window has appeared and the app is in a module search to find
files/classes that might be relevant. VS 2010 indicates the error is some where
in the python33 dll. The code appears to run fine in 2.7, but should be
compatible with 3.3.x

Is my only hope to add more print statements or use pdb or should I try and
compile python 3.3.x myself and get the search narrowed with VS? The issue is
complicated by my having redirected all outputs to some message windows using
fake files for stderr & stdout.