I seems star this repo from exec improve

so it contain not relevant chanegs

Author: Eddy Xu

Lib/test/test_py3kwarn.py

@@ -443,64 +443,18 @@ def test_b32encode_warns(self):
         expected = "base64.b32encode returns str in Python 2 (bytes in 3.x)"
         base64.b32encode(b'test')
         check_py3k_warnings(expected, UserWarning)
-    
+        
     def test_b16encode_warns(self):
         expected = "base64.b16encode returns str in Python 2 (bytes in 3.x)"
         base64.b16encode(b'test')
         check_py3k_warnings(expected, UserWarning)
 
-    def assertExecLocalWritebackWarning(self, recorder, local_name):
-        self.assertEqual(len(recorder.warnings), 1)
-        msg = str(recorder.warnings[0].message)
-        self.assertTrue(msg.startswith(
-            "exec() modified local '%s'" % local_name))
-        recorder.reset()
-
     def assertMROWarning(self, recorder, expected_message):
         self.assertEqual(len(recorder.warnings), 1)
         msg = str(recorder.warnings[0].message)
         self.assertEqual(msg, expected_message)
         recorder.reset()
-
-    def test_exec_local_writeback_warning(self):
-        def f_exec(code):
-            b = 42
-            exec code
-            return b
-
-        with self.check_py3k_warnings_with_fix() as w:
-            f_exec("b = 99")
-            self.assertExecLocalWritebackWarning(w, "b")
-
-        def f_exec_no_write(code):
-            b = 42
-            exec code
-            return b
-
-        with self.check_py3k_warnings_with_fix() as w:
-            f_exec_no_write("print b")
-            self.assertEqual(len(w.warnings), 0)
-
-        def f_exec_overwrite(code):
-            b = 42
-            exec code
-            b = 7
-            return b
-
-        with self.check_py3k_warnings_with_fix() as w:
-            f_exec_overwrite("b = 99")
-            self.assertEqual(len(w.warnings), 0)
-
-        def f_exec_explicit(code):
-            b = 42
-            ns = {'b': b}
-            exec code in globals(), ns
-            return b
-
-        with self.check_py3k_warnings_with_fix() as w:
-            f_exec_explicit("b = 99")
-            self.assertEqual(len(w.warnings), 0)
-
+        
     def test_classic_mro_resolution_change_warning(self):
         with self.check_py3k_warnings_with_fix() as w:
             class A: