Multiple threads in a GUI app (wxPython), communication between worker thread and app?

[Paul Rubin]

"fooooo" <phark52 at yahoo.com> writes:
> How would I get the worker thread to open a GUI window in the main GUI
> thread? After that GUI window is open, how can I send and recv messages
> from/to the GUI window?

First of all the favorite Pythonic way to communicate between threads
is with synchronized queues--see the Queue module.  Have the worker
thread put stuff on a queue and have the main GUI thread read from it.

Secondly, I don't know about wxPython, but in tkinter you have to
resort to a kludge in order for the gui thread to handle gui events
and also notice stuff on a queue.  There's a tkinter command to run
some function after a specified time (say 50 msec).  So you'd set that
timeout to check the queue and restart the timer, which means the gui
would check 20x a second for updates from the worker threads.  When it
got such an update, it would create a new window or whatever.  

It could be that wxPython has a cleaner way of doing this, or you
might have to do something similar.  Python thread support seems to
have been something of an afterthought and there's a lot of weirdness
like this to deal with.