Change "$" to "!"

Author: Xiaokang2022

Lib/test/test_tkinter/test_misc.py

@@ -41,7 +41,7 @@ class Button2(tkinter.Button):
         b2 = Button2(f2)
         for name in str(b).split('.') + str(b2).split('.'):
             self.assertFalse(name.isidentifier(), msg=repr(name))
-        self.assertEqual(str(b2)[-1], "$")
+        self.assertEqual(str(b2)[-1], "!")
 
     @requires_tk(8, 6, 6)
     def test_tk_busy(self):

Lib/tkinter/__init__.py

@@ -2742,7 +2742,7 @@ def _setup(self, master, cnf):
         if not name:
             name = self.__class__.__name__.lower()
             if name[-1].isdigit():
-                name += "$"  # Avoid duplication when calculating names below
+                name += "!"  # Avoid duplication when calculating names below
             if master._last_child_ids is None:
                 master._last_child_ids = {}
             count = master._last_child_ids.get(name, 0) + 1