king kikapu wrote: > Hi, i am reading the book "Python Cookbook, 2nd edition" and i > encountered a very handy recipe, the one that is called "Combining > GUIs and Asynchronous I/O with Threads" > > It is talking about retain a main GUI thread, doing async work with > worker threads and have both talk through a Queue object to dispatch > their messages, so the main (GUI) thread remain responsive. > It has a very good example by using Tkinter and Qt that is indeed > working. The only point that make me wonder is that the QUI thread has > to use some polling to check for messages in the Queue. > > Author said that another alternatives exists (by not doing polling) > but the complexity makes them non-practical for the 90% of ocassions. > I remember in C# we deal with that sort of things with events/ > delegates. > Hos the same thing is possible in Python, has anyone any link(s) to > have a look ?
It depends on the toolkit you use. Qt has thread-safe custom events in 3.x, and afaik signal/slots (and thus events) are generally thread-safe in 4.x. So, no problems there. Diez -- http://mail.python.org/mailman/listinfo/python-list
