bpo-42759: Fix equality comparison of Variable and Font in Tkinter (GH-23968)

Objects which belong to different Tcl interpreters are now always
different, even if they have the same name.

1 files changed, 3 insertions, 7 deletions

diff --git a/Lib/tkinter/__init__.py b/Lib/tkinter/__init__.py
index fec56553e42..57ac3fb5cf6 100644
--- a/Lib/tkinter/__init__.py
+++ b/Lib/tkinter/__init__.py
@@ -516,15 +516,11 @@ class Variable:
             self._tk.call("trace", "vinfo", self._name))]
 
     def __eq__(self, other):
-        """Comparison for equality (==).
-
-        Note: if the Variable's master matters to behavior
-        also compare self._master == other._master
-        """
         if not isinstance(other, Variable):
             return NotImplemented
-        return self.__class__.__name__ == other.__class__.__name__ \
-            and self._name == other._name
+        return (self._name == other._name
+                and self.__class__.__name__ == other.__class__.__name__
+                and self._tk == other._tk)
 
 
 class StringVar(Variable):