import spynner
b = spynner.Browser()
b.load('http://python.su')
b.snapshot().save('python_su.png')

   b.snapshot().save('python_su.png')
TypeError: snapshot() takes at least 2 arguments (1 given)
QWaitCondition: Destroyed while threads are still waiting

def snapshot(self, box=None, format=QImage.Format_ARGB32):
        """        
        Take an image snapshot of the current frame.
        
        @param box: 4-element tuple containing box to capture (x1, y1, x2, y2).
                    If None, capture the whole page.
        @param format: QImage format (see QImage::Format_*).
        @return: A QImage image.
        
        Typical usage:
        
        >>> browser.load(url)
        >>> browser.snapshot().save("webpage.png") 
        """
        if box:
            x1, y1, x2, y2 = box        
            w, h = (x2 - x1), (y2 - y1)
            image0 = QImage(QSize(x2, y2), format)
            painter = QPainter(image0)
            self.webpage.mainFrame().render(painter)
            painter.end()
            image = image0.copy(x1, y1, w, h)
        else:
            image = QImage(self.webpage.viewportSize(), format)
            painter = QPainter(image)                        
            self.webpage.mainFrame().render(painter)
            painter.end()
        return image