Issue #24790: Restore unused function.

2050a106 · Terry Jan Reedy · 41a27e02 · 2050a106
Commit 2050a106 authored Aug 26, 2015 by Terry Jan Reedy
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Lib/idlelib/StackViewer.py Lib/idlelib/StackViewer.py +3 -0

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--- a/Lib/idlelib/StackViewer.py
+++ b/Lib/idlelib/StackViewer.py
@@ -120,6 +120,9 @@ class VariablesTreeItem(ObjectTreeItem):
            sublist.append(item)
        return sublist

+    def keys(self):  # unused, left for possible 3rd parcy use
+        return list(self.object.keys())
+
 def _stack_viewer(parent):
    root = tk.Tk()
    root.title("Test StackViewer")