Modular python code

Let's say I wanted to modularize a large python file. I understand I can put certain modules in a directory where python can find them. However, is it possible to have gtk widget handlers stored in a file separate from the main one? I don't want to have dummy handlers that call the real ones in the other module. Thank you.

gladeVCP, gscreen, Gmoccapy and QTvcp use a process of having 'the other file' as a class that can be parsed and it's functions added to the 'main file'. In gladevcp's case you can add many 'other file' (they are called handler files)

Not sure if you are familiar with any of those programs
It uses some black magic voodoo but it's not hard to copy.
In src/hal/user_comps/gladevcp.py look at the functions:
load_handlers and trampoline

Chris M