I have a couple of questions.
I have an algorithm that will generate a couple of pictures in python that must be displayed on a form. I am using PyGt for this. My question is: where should I run my code? Right from the initializer? In that case from what I tested, the form won't show up. 

Should I set up a timer in the
constructor that starts my algorithm
half a second later?
Will running the algorithm freeze my
form making it impossible to see the
picture itself? I don't mind that the
buttons, checkboxes, etc freeze while
it is computing, as long as the
current picture is still visible.
Should I use something like c#'s
OnFormLoad()? If yes, how can I set
it? Through connect()?
How does threading work on python?
I've heard, but I'm not too sure
about it, that it was a pain to deal
with. Is it? In c# it is as easy as
writing 4 lines. I'd like to use it
if possible, but if it is going to be
hard to implement it I can live
without it.

Thanks
You can run the algorithm in a separate thread, placing the data into a Queue when finished. The main thread (GUI) will periodically sample the queue and display the data when it arrives.
Couple of questions regarding PyQt