How can I send a list object from a QThread thread to the UI's main thread?

Question

I have written this example code to try and figure out how to communicate between a background thread, and the main thread. As I understand it, a thread cannot simply interact w

Answer 1

You can define a custom signal, which can be safely emitted across threads:

from PySide.QtCore import Signal

class Gui(QWidget):
    def initUI(self):
        ...
        bgThread.dataReceived.connect(lambda data: lbl2.setText(str(data)))

class BackgroundThread(QThread):
    dataReceived = Signal(list)
    ...

    def _summary(self):
        ...
        self.dataReceived.emit(data)