Merge pull request #22806 from jklymak/fix-subfigure-callbacks

greglucas · web-flow · commit 5937c681023a · 2022-04-09T07:29:50.000-06:00
FIX: callback for subfigure uses parent
diff --git a/lib/matplotlib/figure.py b/lib/matplotlib/figure.py
@@ -924,7 +924,6 @@ def clear(self, keep_observers=False):
             a gui widget is tracking the Axes in the figure.
         """
         self.suppressComposite = None
-        self.callbacks = cbook.CallbackRegistry()
 
         # first clear the axes in any subfigures
         for subfig in self.subfigs:
@@ -2025,6 +2024,8 @@ def __init__(self, parent, subplotspec, *,
         self._subplotspec = subplotspec
         self._parent = parent
         self.figure = parent.figure
+        self.callbacks = parent.callbacks
+
         # subfigures use the parent axstack
         self._axstack = parent._axstack
         self.subplotpars = parent.subplotpars
