diff --git a/Lib/test/test_cprofile.py b/Lib/test/test_cprofile.py index 57e818b1c68b38..c903ecd5f65756 100644 --- a/Lib/test/test_cprofile.py +++ b/Lib/test/test_cprofile.py @@ -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): """ diff --git a/Misc/NEWS.d/next/Library/2026-07-05-16-09-31.gh-issue-153068.huY9Jh.rst b/Misc/NEWS.d/next/Library/2026-07-05-16-09-31.gh-issue-153068.huY9Jh.rst new file mode 100644 index 00000000000000..accf6e99cd6434 --- /dev/null +++ b/Misc/NEWS.d/next/Library/2026-07-05-16-09-31.gh-issue-153068.huY9Jh.rst @@ -0,0 +1,2 @@ +Fix :meth:`!cProfile.Profile.enable` to no longer overwrite errors from +:mod:`sys.monitoring`. diff --git a/Modules/_lsprof.c b/Modules/_lsprof.c index 73602723d19bcf..412909cd9bf39d 100644 --- a/Modules/_lsprof.c +++ b/Modules/_lsprof.c @@ -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);