[Bf-python] Best way for add-on to download with Python

[Peter D. Cassetta]

Dalai, Bart, and Daniel,

Thanks for the help. I'm planning on rewriting my add-on after its next 
release (of course recycling old work) because it has a lot of areas 
which I'd like to improve before I ask for any type of code review.

Anyway, I should now be able to implement a much better download system 
for my rewritten add-on, which will be a lot nicer for users than the 
current one, so thanks again for your advice and suggestions.

-Peter Cassetta

On 01/24/2013 07:43 PM, Daniel Monteiro Basso wrote:
> Hello,
>
> I think a modal operator is the way to go, yes. Take a look at my 
> "Carnegie Mellon University Mocap Library Browser", and see how I 
> solved the same problem.
> It is marked as broken, and I can't fix it in the next weeks. But if 
> it doesn't work for you, use an older Blender version. Or just look at 
> the code.
>
> Cheers,
>
> Daniel
>
> On Thu, Jan 24, 2013 at 9:53 AM, Bart Crouch <bartius.crouch at gmail.com 
> <mailto:bartius.crouch at gmail.com>> wrote:
>
>     Hi Peter,
>
>     I had a similar problem when writing an exporter for Sketchfab.
>     The uploading part to their website can take a long time
>     (depending on the filesize) and during that time Blender froze. I
>     solved that by using threading.
>     The basic idea is to do the up/downloading in a separate thread.
>     Then I added a timer and a modal operator which is set to
>     PASS_THROUGH. Every time the modal operator is called from the
>     timer, it checks if the up/downloading thread is still alive. If
>     not (because it's finished or experienced an error), it sets in
>     motion the further actions that need  to be taken.
>
>     For an example, you can take a look at the Sketchfab add-on code*,
>     specifically the ExportSketchfab operator class (approximately
>     line 250).
>
>     Best,
>     Bart
>
>     * https://sites.google.com/site/bartiuscrouch/scripts/sketchfab
>
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