FIX: protect against None child

tacaswell · tacaswell · commit d168e5980ad8 · 2015-07-30T23:50:45.000-04:00
diff --git a/lib/matplotlib/offsetbox.py b/lib/matplotlib/offsetbox.py
@@ -1053,7 +1053,8 @@ def __init__(self, loc,
     def set_child(self, child):
         "set the child to be anchored"
         self._child = child
-        child.axes = self.axes
+        if child is not None:
+            child.axes = self.axes
         self.stale = True
 
     def get_child(self):
