gh-118921: Add `copy()` method for `FrameLocalsProxy` (#118923)

1 files changed, 9 insertions, 3 deletions

diff --git a/Lib/test/test_frame.py b/Lib/test/test_frame.py
index 2122553..aee8d37 100644
--- a/Lib/test/test_frame.py
+++ b/Lib/test/test_frame.py
@@ -371,6 +371,15 @@ class TestFrameLocals(unittest.TestCase):
         f_locals['o'] = f_locals['k']
         self.assertEqual(o, 'a.b.c')
 
+    def test_copy(self):
+        x = 0
+        d = sys._getframe().f_locals
+        d_copy = d.copy()
+        self.assertIsInstance(d_copy, dict)
+        self.assertEqual(d_copy['x'], 0)
+        d_copy['x'] = 1
+        self.assertEqual(x, 0)
+
     def test_update_with_self(self):
         def f():
             f_locals = sys._getframe().f_locals
@@ -405,9 +414,6 @@ class TestFrameLocals(unittest.TestCase):
     def test_unsupport(self):
         x = 1
         d = sys._getframe().f_locals
-        with self.assertRaises(AttributeError):
-            d.copy()
-
         with self.assertRaises(TypeError):
             copy.copy(d)