Dec 29, 2019 · Dec 26, 2019
diff --git a/lib/matplotlib/backends/backend_qt5.py b/lib/matplotlib/backends/backend_qt5.py
            QtCore.QTimer.singleShot(0, self._draw_idle)

    def _draw_idle(self):
        if self.height() < 0 or self.width() < 0:
            self._draw_pending = False
        if not self._draw_pending:
            return
        self._draw_pending = False
        if self.height() < 0 or self.width() < 0:
            return
        try:
            self.draw()
        except Exception:
            # Uncaught exceptions are fatal for PyQt5, so catch them instead.
            traceback.print_exc()
        finally:
            self._draw_pending = False

    def drawRectangle(self, rect):
        # Draw the zoom rectangle to the QPainter.  _draw_rect_callback needs
Original file line number	Diff line number	Diff line change
Expand Up		@@ -481,17 +481,16 @@ def draw_idle(self):
		QtCore.QTimer.singleShot(0, self._draw_idle)

		def _draw_idle(self):
		if self.height() < 0 or self.width() < 0:
		self._draw_pending = False
		if not self._draw_pending:
		return
		self._draw_pending = False
		if self.height() < 0 or self.width() < 0:
		return
		try:
		self.draw()
		except Exception:
		# Uncaught exceptions are fatal for PyQt5, so catch them instead.
		traceback.print_exc()
		finally:
		self._draw_pending = False

		def drawRectangle(self, rect):
		# Draw the zoom rectangle to the QPainter. _draw_rect_callback needs
Expand Down