python
diff --git a/‎Lib/dataclasses.py
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+3-1Lines changed: 3 additions & 1 deletion b/‎Lib/dataclasses.py
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+3-1Lines changed: 3 additions & 1 deletion
diff --git a/‎Lib/test/test_dataclasses/__init__.py
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+9Lines changed: 9 additions & 0 deletions b/‎Lib/test/test_dataclasses/__init__.py
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diff --git a/‎Misc/NEWS.d/next/Library/2024-03-14-09-38-51.gh-issue-116647.h0d_zj.rst
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@@ -1075,7 +1075,9 @@ def _process_class(cls, init, repr, eq, order, unsafe_hash, frozen,
         cmp_fields = (field for field in field_list if field.compare)
         terms = [f'self.{field.name}==other.{field.name}' for field in cmp_fields]
         field_comparisons = ' and '.join(terms) or 'True'
-        body =  [f'if other.__class__ is self.__class__:',
+        body =  [f'if self is other:',
+                 f' return True',
+                 f'if other.__class__ is self.__class__:',
                  f' return {field_comparisons}',
                  f'return NotImplemented']
         func = _create_fn('__eq__',
 
@@ -2471,6 +2471,15 @@ def __repr__(self):
 
 
 class TestEq(unittest.TestCase):
+    def test_recursive_eq(self):
+        # Test a class with recursive child
+        @dataclass
+        class C:
+            recursive: object = ...
+        c = C()
+        c.recursive = c
+        self.assertEqual(c, c)
+
     def test_no_eq(self):
         # Test a class with no __eq__ and eq=False.
         @dataclass(eq=False)
 
@@ -0,0 +1 @@
+Fix recursive child in dataclasses