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[3.14] gh-153068: Preserve cprofile enable errors (GH-153070) #153242

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Merged
pablogsal merged 1 commit into from
Jul 7, 2026
+5 −3
Merged

[3.14] gh-153068: Preserve cprofile enable errors (GH-153070) #153242

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5 changes: 3 additions & 2 deletions Lib/test/test_cprofile.py
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Original file line number Diff line number Diff line change
Expand Up @@ -118,8 +118,9 @@ def test_second_profiler(self):
pr = self.profilerclass()
pr2 = self.profilerclass()
pr.enable()
self.assertRaises(ValueError, pr2.enable)
pr.disable()
self.addCleanup(pr.disable)
msg = f"tool {sys.monitoring.PROFILER_ID} is already in use"
self.assertRaisesRegex(ValueError, msg, pr2.enable)

def test_throw(self):
"""
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2 changes: 2 additions & 0 deletions Misc/NEWS.d/next/Library/2026-07-05-16-09-31.gh-issue-153068.huY9Jh.rst
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Original file line number Diff line number Diff line change
@@ -0,0 +1,2 @@
Fix :meth:`!cProfile.Profile.enable` to no longer overwrite errors from
:mod:`sys.monitoring`.
1 change: 0 additions & 1 deletion Modules/_lsprof.c
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Expand Up @@ -819,7 +819,6 @@ _lsprof_Profiler_enable_impl(ProfilerObject *self, int subcalls,
"use_tool_id", "is",
self->tool_id, "cProfile");
if (check == NULL) {
PyErr_Format(PyExc_ValueError, "Another profiling tool is already active");
goto error;
}
Py_DECREF(check);
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