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List:       pykde
Subject:    Re: [PyQt] QImage and the GIL
From:       Phil Thompson <phil () riverbankcomputing ! com>
Date:       2015-03-16 17:18:51
Message-ID: c03954ea951de05f5d4aab12a3e68579 () riverbankcomputing ! com
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On 12/03/2015 5:24 pm, Martin Altmayer wrote:
> Hello,
> 
> I use a separate thread to open and scale a large set of images.
> Unfortunately, with PyQt5 the main thread blocks while an image is
> loaded (it did work in PyQt4). I believe that the reason is that the
> QImage-constructor and QImage.scale do not release the GIL. Wouldn't
> it be better if they did?

The GIL is now released for all calls that go to the filesystem or a 
QIODevice (ie. those that might block).

Phil
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