If I am not mistaken you want something like this: 1) http://paste-it.net/public/i2de44d/ (with threads and classes)
2) http://paste-it.net/public/f5e340e/ (without threads and classes) Note that without threads, we need to use the update() method. However, without threads you will experience some degree of "blockage" in the application anyway. 2010/8/18 Alex Ter-Sarkissov <sigma.z.1...@gmail.com> > thanks, in one of these articles it says. 'Be careful - Tkinter in not > re-entrant'. MAybe this is the problem? So far I've tried > > > (1) > Label(mainframe.update_idletasks(),textvariable=best,bg='#321000',fg='#000fff000',font=("Helvetica",x1)).grid(column=1,row=1) > > and > > (2) > mainframe = Frame(root) > mainframe.grid(column=1000, row=1000, sticky=(N, W, E, S)) > mainframe.columnconfigure(0, weight=1) > mainframe.rowconfigure(0, weight=1) > mainframe.update() > > Neither worked, of course, otherwise I woudln't be posting it) > > I'm not using any classes > > 2010/8/18 Cameron Laird <came...@phaseit.net> > >> On Wed, Aug 18, 2010 at 12:50:38AM +1200, Alex Ter-Sarkissov wrote: >> . >> . >> . >> > I have some elements on the screen (Labels, most importantly) which >> content >> > has to be updated every iteration of the algorithm run, e.g. "Iteration >> =" >> > [i] for i in range(n). I've tried using mainframe.update_idletasks() >> > and >> Label(mainframe.update_ideltasks(),textvariable=var).grid(column=1,row=1), >> > but without success so far. In MATLAB this command is drawnow. >> . >> . >> . >> I believe I understand your description. >> >> For a "quick fix", I recommend you experiment with update() (as >> opposed to update_idletasks()) applied to mainframe. >> >> For better long-term maintainability, though, you almost >> certainly should "return to the event loop" on each iteration >> of your run (there are also multi-threading approaches, but >> they're somewhat trickier to code correctly). >> >> You might find <URL: http://wiki.tcl.tk/1255 >, <URL: >> http://wiki.tcl.tk/1526 >, and <URL: >> http://osdir.com/ml/python.tkinter/2008-05/msg00014.html > of >> interest. >> > > > _______________________________________________ > Tkinter-discuss mailing list > Tkinter-discuss@python.org > http://mail.python.org/mailman/listinfo/tkinter-discuss > >
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