Made layoutboxes private

jklymak · jklymak · commit 52a53a6cddcd · 2018-01-24T15:14:07.000-08:00
diff --git a/lib/matplotlib/axes/_base.py b/lib/matplotlib/axes/_base.py
@@ -576,7 +576,7 @@ def __getstate__(self):
         # that point.
         state = super(_AxesBase, self).__getstate__()
         state['_cachedRenderer'] = None
-        state.pop('layoutbox')
+        state.pop('_layoutbox')
         state.pop('_poslayoutbox')
 
         return state
