diff --git a/lib/matplotlib/backends/backend_qt5agg.py b/lib/matplotlib/backends/backend_qt5agg.py index 7c110762eb9e..656c837e5e65 100644 --- a/lib/matplotlib/backends/backend_qt5agg.py +++ b/lib/matplotlib/backends/backend_qt5agg.py @@ -75,7 +75,11 @@ def paintEvent(self, e): In Qt, all drawing should be done inside of here when a widget is shown onscreen. """ - # FigureCanvasQT.paintEvent(self, e) + # if the canvas does not have a renderer, then give up and wait for + # FigureCanvasAgg.draw(self) to be called + if not hasattr(self, 'renderer'): + return + if DEBUG: print('FigureCanvasQtAgg.paintEvent: ', self, self.get_width_height())