setPixmap crashing when trying to show image in label

Question

I have created a minimal example with pyqt designer, that changes the text of a label when a button is pressed and is supposed to present a screenshot in the window, via the

Answer 1

"screenshot" shares the same memory with "qimg", and as screenshot it is a local variable that when eliminated the associated memory is also eliminated so the QPbelmap of the QLabel when trying to access information will generate a Segmentation fault. The solution is to make a copy so that they do not share the same memory

def take_screenshot(self):
    screenshot = grab()
    qim = ImageQt(screenshot).copy()
    pix = QtGui.QPixmap.fromImage(qim)
    self.label.setPixmap(pix)
    self.label.adjustSize()