MNT: Simplify logic about when to force animated

tacaswell · tacaswell · commit e7393d9d6c23 · 2015-08-27T22:43:30.000-04:00
Only attempt to force `set_animated(True)` when blitting is
enabled.
diff --git a/lib/matplotlib/animation.py b/lib/matplotlib/animation.py
@@ -1160,7 +1160,7 @@ def _init_draw(self):
             self._draw_frame(next(self.new_frame_seq()))
         else:
             self._drawn_artists = self._init_func()
-            if iterable(self._drawn_artists):
+            if self._blit:
                 for a in self._drawn_artists:
                     a.set_animated(self._blit)
 
@@ -1175,6 +1175,6 @@ def _draw_frame(self, framedata):
         # Call the func with framedata and args. If blitting is desired,
         # func needs to return a sequence of any artists that were modified.
         self._drawn_artists = self._func(framedata, *self._args)
-        if iterable(self._drawn_artists):
+        if self._blit:
             for a in self._drawn_artists:
                 a.set_animated(self._blit)
