Re: tkinter redraw rates

Newsgroups	comp.lang.python
Date	2013-07-17 04:10 -0700
References	(1 earlier) <mailman.4794.1374025243.3114.python-list@python.org> <17c2ef71-ee2d-4229-9731-e0d54a0997cb@googlegroups.com> <mailman.4795.1374027719.3114.python-list@python.org> <a3e5a3bc-248b-4f87-b161-596c6fe77fba@googlegroups.com> <mailman.4799.1374055664.3114.python-list@python.org>
Message-ID	<ca274116-be7a-4eda-8e96-a47dd80966c1@googlegroups.com> (permalink)
Subject	Re: tkinter redraw rates
From	fronagzen@gmail.com

Show all headers | View raw

On Wednesday, July 17, 2013 6:07:22 PM UTC+8, Dave Angel wrote:
> On 07/16/2013 11:04 PM, fronagzen@gmail.com wrote:
> 
> > Noted on the quoting thing.
> > Regarding the threading, well, first, I'm not so much a programmer as someone who knows a bit of how to program.
> > And it seems that the only way to update a tkinter window is to use the .update() method, which is what I was experimenting with. Start up a new thread that just loops the .update() with a 1ms sleep until the download is done. It seems to work, actually.
> 
> update() is to be used when it's too awkward to return to mainloop.  In 
> my second approach, you would periodically call it inside the processing 
> loop.  But unless tkinter is unique among GUI's, it's unsafe to do that 
> in any thread besides the GUI thread.
> 
> -- 
> 
> DaveA

Yes, based on advice from this thread, I'm doing that. From my main thread, I create a thread that handles the download while updating a variable that the mainloop displays as a text output, and in that mainloop, I have a while loop that updates the GUI until the downloading is done.

Thread

tkinter redraw rates fronagzen@gmail.com - 2013-07-16 17:57 -0700
  Re: tkinter redraw rates David Hutto <dwightdhutto@gmail.com> - 2013-07-16 21:32 -0400
  Re: tkinter redraw rates David Hutto <dwightdhutto@gmail.com> - 2013-07-16 21:34 -0400
  Re: tkinter redraw rates Dave Angel <davea@davea.name> - 2013-07-16 21:40 -0400
    Re: tkinter redraw rates fronagzen@gmail.com - 2013-07-16 18:51 -0700
      Re: tkinter redraw rates Dave Angel <davea@davea.name> - 2013-07-16 22:21 -0400
        Re: tkinter redraw rates fronagzen@gmail.com - 2013-07-16 20:04 -0700
          Re: tkinter redraw rates Dave Angel <davea@davea.name> - 2013-07-17 06:07 -0400
            Re: tkinter redraw rates fronagzen@gmail.com - 2013-07-17 04:08 -0700
              Re: tkinter redraw rates Michael Torrie <torriem@gmail.com> - 2013-07-17 16:53 -0600
            Re: tkinter redraw rates fronagzen@gmail.com - 2013-07-17 04:10 -0700
              Re: tkinter redraw rates Dave Angel <davea@davea.name> - 2013-07-17 07:42 -0400
                Re: tkinter redraw rates fronagzen@gmail.com - 2013-07-17 06:18 -0700
                Re: tkinter redraw rates Dave Angel <davea@davea.name> - 2013-07-17 13:38 -0400
                Re: tkinter redraw rates fronagzen@gmail.com - 2013-07-17 17:44 -0700
                Re: tkinter redraw rates Dave Angel <davea@davea.name> - 2013-07-17 21:07 -0400
                Re: tkinter redraw rates fronagzen@gmail.com - 2013-07-17 21:38 -0700
                Re: tkinter redraw rates Dave Angel <davea@davea.name> - 2013-07-18 00:52 -0400
                Re: tkinter redraw rates Christian Gollwitzer <auriocus@gmx.de> - 2013-07-18 09:20 +0200
                Re: tkinter redraw rates fronagzen@gmail.com - 2013-07-18 02:10 -0700
                Re: tkinter redraw rates Peter Otten <__peter__@web.de> - 2013-07-17 20:10 +0200

csiph-web