[PySide] sending data from urllib2.urlopen().read() via signal corrupts in receiver

[Erik Johansson]

Had the same problem.

Solved it by creating a QImage and emitting that.

Cheers,
Erik

On Sun, Oct 22, 2017 at 11:19 AM, Frank Rueter | OHUfx <frank at ohufx.com>
wrote:

> quick follow up:
> I am now writing the files to a temp directory and only passing the
> respective path via the signal, but I'm still curious how I would do this
> without writing anything to disk.
>
> Cheers,
> frank
>
>
> On 10/22/2017 09:18 PM, Frank Rueter | OHUfx wrote:
>
> Hi,
>
> I am downloading a few images in a separate thread using QRunnable.
> To download I am just using urllib2.urlopen() like this:
>
> [...]
>     def run(self):
>         imageData = urllib2.urlopen(self.url).read()
>         print 'emitted:', imageData
>         self.signals.receivedData.emit(imageData) # this signal is
> declared like this: QtCore.Signal(str)
>
>
> However, the receiving slot is receiving nothing:
>
>     def setPixmap(self, imageData):
>         print 'received:', imageData
>         pixmap = QtGui.QPixmap()
>         pixmap.loadFromData(imageData)
>         self.data['pixmap'] = pixmap
>
>
> I guess this is too naive an approach to download image data in a separate
> thread?!
>
> How can I fix this please?
>
> Cheers,
> frank
>
>
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-- 


*ERIK JOHANSSON*
Pipeline TD

*GOODBYE KANSAS STUDIOS*
Rosenlundsgatan 40, 4th floor
118 53 Stockholm, Sweden

Ph: +46 8 556 990 00 <+46855699000>
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