Question regarding python2.5 migration from windows xp to windows 7

[python_tsp]

Hi,

We have a Python based test framework which is being used in various
projects.

Our current environment is
Python (ver 2.5.1)
wxPython (wxPython2.8-win32-ansi-2.8.6.0-py25)
pywin32-210.win32-py2.5
vcredist_x86.exe
pyserial-2.2

Our Framework is being currently used in Windows XP.

The issue is:
Soon our environment will be migrated from Windows XP to Windows 7.
In this regard, I would be in need of suggestions/ideas/information
regarding migration of our existing framework into windows 7
environment.

Do i need to migrate our framework from Python 2.5 to either Python
2.6 or directly to Python 3.0 ? What happens to all supporting
packages..etc

Which is the best way ?

We tried out of some option of using our framework under virtual xp
context of windows 7.Thou it works for timebeing,i am not interested
to having the same as kind of way of working for future.

Please help

Many thanks in advance

- Pramod