Patch #812986: Update the canvas even if not tracing.
diff --git a/Lib/lib-tk/turtle.py b/Lib/lib-tk/turtle.py
index d68e405..d186ac6 100644
--- a/Lib/lib-tk/turtle.py
+++ b/Lib/lib-tk/turtle.py
@@ -634,6 +634,7 @@
 
     def _draw_turtle(self, position=[]):
         if not self._tracing:
+            self._canvas.update()
             return
         if position == []:
             position = self._position