Creating .exe file in Python

[subhabrata.banerji at gmail.com]

Dear Group,

I am trying to learn how to create .exe file for Python. I tried to work around 
http://www.py2exe.org/index.cgi/Tutorial of Py2exe. The sample program went nice.
But if I try to make exe for larger programs with methods and classes I am getting error. 

If any one of the esteemed members may kindly suggest how to work out. 
I am using Python2.7+ on Windows 7 Professional. 

Regards,
Subhabrata Banerjee.