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POPyQt4 Worker thread, a "QThread.started" goes missing
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  1. POPyQt4 Worker thread, a "QThread.started" goes missing
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    copied!<p>I am trying to properly setup a worker thread in my PyQt4 application, but for some reason the start signal from the thread is no propagating to my worker!</p> <pre><code> syncThread = QtCore.QThread() self._syncThread = syncThread worker = SyncWorker(self.async_sync) worker.moveToThread(syncThread) syncThread.started.connect(self.progress.show) #This dialog appears! syncThread.started.connect(worker.work) # This seems to be a no-op worker.finished.connect(syncThread.quit) worker.finished.connect(worker.deleteLater) syncThread.finished.connect(worker.deleteLater) syncThread.finished.connect(syncThread.deleteLater) syncThread.start() class SyncWorker(QtCore.QObject): # Emitted whenever done finished = QtCore.pyqtSignal() def __init__(self, delegate): QtCore.QObject.__init__(self) @QtCore.pyqtSlot() def work(self): print("Worker gonna work") #This never prints! self.finished.emit() </code></pre> <p>Any ideas?</p> <p>Thank you!</p> <p><strong>Update:</strong> After renaming worker -> self.worker as per Gary Hughes I get a new error before a crash</p> <pre><code>QObject::setParent: Cannot set parent, new parent is in a different thread QPixmap: It is not safe to use pixmaps outside the GUI thread QPixmap: It is not safe to use pixmaps outside the GUI thread QPixmap: It is not safe to use pixmaps outside the GUI thread QPixmap: It is not safe to use pixmaps outside the GUI thread QPixmap: It is not safe to use pixmaps outside the GUI thread QPixmap: It is not safe to use pixmaps outside the GUI thread QPixmap: It is not safe to use pixmaps outside the GUI thread python: Fatal IO error 11 (Resource temporarily unavailable) on X server :0. Segmentation fault </code></pre> <p><strong>Update #2</strong> Nevermind! My worker was calling GUI code and that caused the new error. The original fix of using self.worker is correct.</p>
 

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