https://github.com/python/cpython/commit/ab64130b572424695bf072f7608a536997dce14f
commit: ab64130b572424695bf072f7608a536997dce14f
branch: main
author: Tian Gao <gaogaotiant...@hotmail.com>
committer: gaogaotiantian <gaogaotiant...@hotmail.com>
date: 2025-04-08T13:36:47-04:00
summary:
gh-132250: Clear error in lsprof callback when method descriptor raises an
excep… (#132251)
files:
A Misc/NEWS.d/next/Library/2025-04-08-01-55-11.gh-issue-132250.APBFCw.rst
M Lib/test/test_cprofile.py
M Modules/_lsprof.c
diff --git a/Lib/test/test_cprofile.py b/Lib/test/test_cprofile.py
index 65720871d5c5f0..b46edf66bf09f8 100644
--- a/Lib/test/test_cprofile.py
+++ b/Lib/test/test_cprofile.py
@@ -139,6 +139,14 @@ def test_throw(self):
self.assertEqual(cc, 1)
self.assertEqual(nc, 1)
+ def test_bad_descriptor(self):
+ # gh-132250
+ # cProfile should not crash when the profiler callback fails to locate
+ # the actual function of a method.
+ with self.profilerclass() as prof:
+ with self.assertRaises(TypeError):
+ bytes.find(str())
+
class TestCommandLine(unittest.TestCase):
def test_sort(self):
diff --git
a/Misc/NEWS.d/next/Library/2025-04-08-01-55-11.gh-issue-132250.APBFCw.rst
b/Misc/NEWS.d/next/Library/2025-04-08-01-55-11.gh-issue-132250.APBFCw.rst
new file mode 100644
index 00000000000000..b49528867c2ef3
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2025-04-08-01-55-11.gh-issue-132250.APBFCw.rst
@@ -0,0 +1 @@
+Fixed the :exc:`SystemError` in :mod:`cProfile` when locating the actual C
function of a method raises an exception.
diff --git a/Modules/_lsprof.c b/Modules/_lsprof.c
index 379f9869f2fe09..626c176715bdac 100644
--- a/Modules/_lsprof.c
+++ b/Modules/_lsprof.c
@@ -671,6 +671,7 @@ PyObject* get_cfunc_from_callable(PyObject* callable,
PyObject* self_arg, PyObje
PyObject *meth = Py_TYPE(callable)->tp_descr_get(
callable, self_arg, (PyObject*)Py_TYPE(self_arg));
if (meth == NULL) {
+ PyErr_Clear();
return NULL;
}
if (PyCFunction_Check(meth)) {
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