Merge pull request #15424 from meeseeksmachine/auto-backport-of-pr-15422-on-v3.1.x

tacaswell · web-flow · commit 5102af39f172 · 2019-10-16T08:47:02.000-04:00
Backport PR #15422 on branch v3.1.x (FIX: typo in attribute lookup)
diff --git a/lib/matplotlib/backends/backend_qt5.py b/lib/matplotlib/backends/backend_qt5.py
@@ -493,7 +493,7 @@ def draw_idle(self):
         # accumulate multiple draw requests from event handling.
         # TODO: queued signal connection might be safer than singleShot
         if not (getattr(self, '_draw_pending', False) or
-                getattr(self, '._is_drawing', False)):
+                getattr(self, '_is_drawing', False)):
             self._draw_pending = True
             QtCore.QTimer.singleShot(0, self._draw_idle)
 
