Jan 27, 2020 · Jan 23, 2020
diff --git a/lib/matplotlib/backend_bases.py b/lib/matplotlib/backend_bases.py
    @contextmanager
    def _idle_draw_cntx(self):
        self._is_idle_drawing = True
        yield
        self._is_idle_drawing = False
        try:
            yield
        finally:
            self._is_idle_drawing = False

    def is_saving(self):
        """
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 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()
        with self._idle_draw_cntx():
            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.
                traceback.print_exc()

    def drawRectangle(self, rect):
        # Draw the zoom rectangle to the QPainter.  _draw_rect_callback needs
diff --git a/lib/matplotlib/pyplot.py b/lib/matplotlib/pyplot.py
    fig : Figure
        A figure object which is assumed to be associated with a canvas
    """
    if val and matplotlib.is_interactive() and not fig.canvas.is_saving():
        fig.canvas.draw_idle()
    if (val and matplotlib.is_interactive()
            and not fig.canvas.is_saving()
            and not fig.canvas._is_idle_drawing):
        # Some artists can mark themselves as stale in the middle of drawing
        # (e.g. axes position & tick labels being computed at draw time), but
        # this shouldn't trigger a redraw because the current redraw will
        # already take them into account.
        with fig.canvas._idle_draw_cntx():
            fig.canvas.draw_idle()


 def gcf():
Original file line number	Diff line number	Diff line change
Expand Up		@@ -1617,8 +1617,10 @@ def _fix_ipython_backend2gui(cls):
		@contextmanager
		def _idle_draw_cntx(self):
		self._is_idle_drawing = True
		yield
		self._is_idle_drawing = False
		try:
		yield
		finally:
		self._is_idle_drawing = False

		def is_saving(self):
		"""
Expand Down
Original file line number	Diff line number	Diff line change
Expand Up		@@ -481,16 +481,17 @@ def draw_idle(self):
		QtCore.QTimer.singleShot(0, self._draw_idle)

		def _draw_idle(self):
		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()
		with self._idle_draw_cntx():
		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.
		traceback.print_exc()

		def drawRectangle(self, rect):
		# Draw the zoom rectangle to the QPainter. _draw_rect_callback needs
Expand Down
Original file line number	Diff line number	Diff line change
Expand Up		@@ -565,8 +565,15 @@ def _auto_draw_if_interactive(fig, val):
		fig : Figure
		A figure object which is assumed to be associated with a canvas
		"""
		if val and matplotlib.is_interactive() and not fig.canvas.is_saving():
		fig.canvas.draw_idle()
		if (val and matplotlib.is_interactive()
		and not fig.canvas.is_saving()
		and not fig.canvas._is_idle_drawing):
		# Some artists can mark themselves as stale in the middle of drawing
		# (e.g. axes position & tick labels being computed at draw time), but
		# this shouldn't trigger a redraw because the current redraw will
		# already take them into account.
		with fig.canvas._idle_draw_cntx():
		fig.canvas.draw_idle()


		def gcf():
Expand Down