python · serhiy-storchaka · Jan 13, 2025 · Jan 8, 2025 · Jan 8, 2025 · Jan 10, 2025
diff --git a/Lib/test/test_tkinter/test_misc.py b/Lib/test/test_tkinter/test_misc.py
@@ -31,12 +31,20 @@ def test_repr(self):
        self.assertEqual(repr(f), '<tkinter.Frame object .top.child>')

    def test_generated_names(self):
+        class Button2(tkinter.Button):
+            pass
+
        t = tkinter.Toplevel(self.root)
        f = tkinter.Frame(t)
        f2 = tkinter.Frame(t)
+        self.assertNotEqual(str(f), str(f2))
        b = tkinter.Button(f2)
-        for name in str(b).split('.'):
+        b2 = Button2(f2)
+        for name in str(b).split('.') + str(b2).split('.'):
            self.assertFalse(name.isidentifier(), msg=repr(name))
+        b3 = tkinter.Button(f2)
+        b4 = Button2(f2)
+        self.assertEqual(len({str(b), str(b2), str(b3), str(b4)}), 4)

    @requires_tk(8, 6, 6)
    def test_tk_busy(self):

diff --git a/Lib/tkinter/__init__.py b/Lib/tkinter/__init__.py
@@ -2741,6 +2741,8 @@ def _setup(self, master, cnf):
            del cnf['name']
        if not name:
            name = self.__class__.__name__.lower()
+            if name[-1].isdigit():
+                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

diff --git a/Misc/NEWS.d/next/Library/2025-01-08-03-09-29.gh-issue-128562.Mlv-yO.rst b/Misc/NEWS.d/next/Library/2025-01-08-03-09-29.gh-issue-128562.Mlv-yO.rst
@@ -0,0 +1 @@
+Fix possible conflicts in generated :mod:`tkinter` widget names if the widget class name ends with a digit.
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		Fix possible conflicts in generated :mod:`tkinter` widget names if the widget class name ends with a digit.