[PyQt] QImage and the GIL

[Martin Altmayer]

As far as I understand the docs at
http://pyqt.sourceforge.net/Docs/PyQt5/pyqt4_differences.html#releasing-the-gil
the GIL needs to be released before I call a Qt function from Python. 
And as far as I understand qimage.sip the GIL is not released for QImage 
methods.

Am 12.03.2015 20:52 schrieb Jason H:
> The GIL is not in effect when you are in C++ code. If you are in
> QImage::scale, then you aren't experiencing GIL.
> 
> 
>> Sent: Thursday, March 12, 2015 at 1:24 PM
>> From: "Martin Altmayer" <martin.altmayer at web.de>
>> To: pyqt at riverbankcomputing.com
>> Subject: [PyQt] QImage and the GIL
>> 
>> 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?
>> 
>> Thanks,
>> Martin
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