python · markshannon · Feb 25, 2025 · Feb 23, 2025 · Feb 23, 2025
diff --git a/Lib/test/test_sys_setprofile.py b/Lib/test/test_sys_setprofile.py
@@ -493,6 +493,24 @@ class A:
        # The last c_call is the call to sys.setprofile
        self.assertEqual(events, ['c_call', 'c_return', 'c_call'])

+        class B:
+            f = classmethod(max)
+        events = []
+        sys.setprofile(lambda frame, event, args: events.append(event))
+        # Not important, we only want to trigger INSTRUMENTED_CALL_KW
+        B().f(1, key=lambda x: 0)
+        sys.setprofile(None)
+        # The last c_call is the call to sys.setprofile
+        self.assertEqual(
+            events,
+            ['c_call',
+             'call', 'return',
+             'call', 'return',
+             'c_return',
+             'c_call'
+            ]
+        )
+

 if __name__ == "__main__":
    unittest.main()
diff --git a/Misc/NEWS.d/next/Core_and_Builtins/2025-02-23-20-48-31.gh-issue-122029.iW8GvA.rst b/Misc/NEWS.d/next/Core_and_Builtins/2025-02-23-20-48-31.gh-issue-122029.iW8GvA.rst
@@ -0,0 +1 @@
+``INSTRUMENTED_CALL_KW`` will expand the method before monitoring to reflect the actual behavior more accurately.
@@ -4509,8 +4509,8 @@ dummy_func(
        macro(INSTRUMENTED_CALL_KW) =
            counter/1 +
            unused/2 +
-            _MONITOR_CALL_KW +
            _MAYBE_EXPAND_METHOD_KW +
+            _MONITOR_CALL_KW +
            _DO_CALL_KW;

        op(_CHECK_IS_NOT_PY_CALLABLE_KW, (callable[1], unused[1], unused[oparg], kwnames -- callable[1], unused[1], unused[oparg], kwnames)) {

diff --git a/Python/generated_cases.c.h b/Python/generated_cases.c.h
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		``INSTRUMENTED_CALL_KW`` will expand the method before monitoring to reflect the actual behavior more accurately.