Re: Best way to busy-wait in Python 3 / Gtk+ 3?

[Filip Lamparski <matka poohatka gmail com>]

Thanks, your method works. However, it still takes the program quite a bit
to load up, and my problem is that I want display the window as soon as
possible. If that helps, here is how the program loads up:
Script starts
The window is constructed
Window events are connected to their handlers
window.show_all()
When the window is ready, TED Talks are loaded and processed.
Then, widgets for the talks are created. In the widget's constructor, I
call GdkPixbuf.Pixbuf.new_from_stream_async.

Problem: The window does not show up when loading the images (something
that I hoped _async would make possible).

On 8 October 2012 08:32, Simon Feltman <s feltman gmail com> wrote:

> On Sun, Oct 7, 2012 at 9:10 PM, Michael Torrie <torriem gmail com> wrote:
> > Maybe the best way is to avoid processes or threads altogether.  Since
> > downloading this thumbnail is io-bound, not cpu-bound, once you send off
> > your request, just use io watches to trigger the main loop when
> > something has come in.
>
> Agreed, better yet, the code could become much simpler using an async
> pixbuf:
>
> def on_image_ready(stream, res, user_data):
>     pixbuf = GdkPixbuf.Pixbuf.new_from_stream_finish(res)
>     ...
> file = Gio.File.new_for_uri("...")
> GdkPixbuf.Pixbuf.new_from_stream_async(file.read(None), None,
> on_image_ready, None)
>
> All within a main loop of course.
>
> -Simon
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