[PyQt] QSvgRenderer().render() blocking main thread

[Wilbert Berendsen]

Dear friends,

I am QSvgRenderer to render a SVG file to a QImage in a background
thread.  All code in the background thread works properly, but during
the call to QSvgRenderer::render(...) the main (Gui) thread blocks.

It seems that this is due to the GIL not being released during render()?

Is there a way to get around this? (without requiring the user to
patch+recompile qsvgrenderer.sip)

The render() method takes a noticable time, esp. on larger resolutions.

It would be very nice to be able to render in a background thread.

Thanks,
Wilbert
(Frescobaldi author and core developer)

-- 
Wilbert Berendsen, musician
‣ mail: info at wilbertberendsen.nl
‣ web: www.wilbertberendsen.nl