Sep 16, 2023 · Sep 16, 2023 · Sep 16, 2023 · Sep 16, 2023 · Sep 25, 2023 · Oct 2, 2023
diff --git a/Lib/copy.py b/Lib/copy.py
    frozen dataclasses.
    """
    cls = obj.__class__
    func = getattr(cls, '__replace__',None)
    if func isNone:
    func = getattr(cls, '__replace__',_NoValue)
    if func is_NoValue:
        raise TypeError(f"replace() does not support {cls.__name__} objects")
    return func(obj, **changes)
diff --git a/Lib/test/test_copy.py b/Lib/test/test_copy.py
        with self.assertRaisesRegex(TypeError, 'unexpected keyword argument'):
            copy.replace(c, x=1, error=2)

    def test_invalid_replace_method(self):
        class A:
            __replace__ = None
        a = A()
        with self.assertRaises(TypeError):
            copy.replace(a)


 def global_foo(x, y): return x+y
Original file line number	Diff line number	Diff line change
Expand Up		@@ -301,7 +301,7 @@ def replace(obj, /, **changes):
		frozen dataclasses.
		"""
		cls = obj.__class__
		func = getattr(cls, '__replace__',None)
		if func isNone:
		func = getattr(cls, '__replace__',_NoValue)
		if func is_NoValue:
		raise TypeError(f"replace() does not support {cls.__name__} objects")
		return func(obj, **changes)
Original file line number	Diff line number	Diff line change
Expand Up		@@ -981,6 +981,13 @@ class C:
		with self.assertRaisesRegex(TypeError, 'unexpected keyword argument'):
		copy.replace(c, x=1, error=2)

		def test_invalid_replace_method(self):
		class A:
		__replace__ = None
		a = A()
		with self.assertRaises(TypeError):
		copy.replace(a)


		def global_foo(x, y): return x+y

Expand Down