gh-129354: Fix grammar in PyErr_FormatUnraisable()

Replace "on verb+ing" with "while verb+ing".

Lib/test/test_cmd_line.py

@@ -491,7 +491,7 @@ def test_stdout_flush_at_shutdown(self):
         rc, out, err = assert_python_failure('-c', code)
         self.assertEqual(b'', out)
         self.assertEqual(120, rc)
-        self.assertIn(b'Exception ignored on flushing sys.stdout:\n'
+        self.assertIn(b'Exception ignored while flushing sys.stdout:\n'
                       b'OSError: '.replace(b'\n', os.linesep.encode()),
                       err)
 

Lib/test/test_ctypes/test_callbacks.py

@@ -324,7 +324,7 @@ def func():
 
             self.assertIsInstance(cm.unraisable.exc_value, TypeError)
             self.assertEqual(cm.unraisable.err_msg,
-                             f"Exception ignored on converting result "
+                             f"Exception ignored while converting result "
                              f"of ctypes callback function {func!r}")
             self.assertIsNone(cm.unraisable.object)
 

Lib/test/test_ctypes/test_random_things.py

@@ -51,7 +51,7 @@ def expect_unraisable(self, exc_type, exc_msg=None):
             if exc_msg is not None:
                 self.assertEqual(str(cm.unraisable.exc_value), exc_msg)
             self.assertEqual(cm.unraisable.err_msg,
-                             f"Exception ignored on calling ctypes "
+                             f"Exception ignored while calling ctypes "
                              f"callback function {callback_func!r}")
             self.assertIsNone(cm.unraisable.object)
 

Modules/_ctypes/_ctypes.c

@@ -183,7 +183,8 @@ _DictRemover_call(PyObject *myself, PyObject *args, PyObject *kw)
     DictRemoverObject *self = _DictRemoverObject_CAST(myself);
     if (self->key && self->dict) {
         if (-1 == PyDict_DelItem(self->dict, self->key)) {
-            PyErr_FormatUnraisable("Exception ignored on calling _ctypes.DictRemover");
+            PyErr_FormatUnraisable("Exception ignored while "
+                                   "calling _ctypes.DictRemover");
         }
         Py_CLEAR(self->key);
         Py_CLEAR(self->dict);

Modules/_ctypes/callbacks.c

@@ -225,9 +225,9 @@ static void _CallPythonObject(ctypes_state *st,
 
     result = PyObject_Vectorcall(callable, args, nargs, NULL);
     if (result == NULL) {
-        PyErr_FormatUnraisable(
-                "Exception ignored on calling ctypes callback function %R",
-                callable);
+        PyErr_FormatUnraisable("Exception ignored while "
+                               "calling ctypes callback function %R",
+                               callable);
     }
 
 #ifdef MS_WIN32
@@ -269,7 +269,7 @@ static void _CallPythonObject(ctypes_state *st,
         if (keep == NULL) {
             /* Could not convert callback result. */
             PyErr_FormatUnraisable(
-                    "Exception ignored on converting result "
+                    "Exception ignored while converting result "
                     "of ctypes callback function %R",
                     callable);
         }
@@ -282,7 +282,7 @@ static void _CallPythonObject(ctypes_state *st,
                                   "memory leak in callback function.",
                                   1) == -1) {
                 PyErr_FormatUnraisable(
-                        "Exception ignored on converting result "
+                        "Exception ignored while converting result "
                         "of ctypes callback function %R",
                         callable);
             }

Modules/_datetimemodule.c

@@ -226,7 +226,7 @@ clear_current_module(PyInterpreterState *interp, PyObject *expected)
     goto finally;
 
 error:
-    PyErr_FormatUnraisable("Exception ignored when clearing _datetime module");
+    PyErr_FormatUnraisable("Exception ignored while clearing _datetime module");
 
 finally:
     PyErr_SetRaisedException(exc);

Modules/_lsprof.c

@@ -933,7 +933,8 @@ profiler_dealloc(ProfilerObject *op)
     if (op->flags & POF_ENABLED) {
         PyThreadState *tstate = _PyThreadState_GET();
         if (_PyEval_SetProfile(tstate, NULL, NULL) < 0) {
-            PyErr_FormatUnraisable("Exception ignored when destroying _lsprof profiler");
+            PyErr_FormatUnraisable("Exception ignored while "
+                                   "destroying _lsprof profiler");
         }
     }
 

Modules/_testcapi/watchers.c

@@ -428,7 +428,7 @@ allocate_too_many_code_watchers(PyObject *self, PyObject *args)
     PyObject *exc = PyErr_GetRaisedException();
     for (int i = 0; i < num_watchers; i++) {
         if (PyCode_ClearWatcher(watcher_ids[i]) < 0) {
-            PyErr_FormatUnraisable("Exception ignored when "
+            PyErr_FormatUnraisable("Exception ignored while "
                                    "clearing code watcher");
             break;
         }
@@ -610,7 +610,7 @@ allocate_too_many_func_watchers(PyObject *self, PyObject *args)
     PyObject *exc = PyErr_GetRaisedException();
     for (int i = 0; i < num_watchers; i++) {
         if (PyFunction_ClearWatcher(watcher_ids[i]) < 0) {
-            PyErr_FormatUnraisable("Exception ignored when "
+            PyErr_FormatUnraisable("Exception ignored while "
                                    "clearing function watcher");
             break;
         }
@@ -757,7 +757,7 @@ allocate_too_many_context_watchers(PyObject *self, PyObject *args)
     PyObject *exc = PyErr_GetRaisedException();
     for (int i = 0; i < num_watchers; i++) {
         if (PyContext_ClearWatcher(watcher_ids[i]) < 0) {
-            PyErr_FormatUnraisable("Exception ignored when "
+            PyErr_FormatUnraisable("Exception ignored while "
                                    "clearing context watcher");
             break;
         }

Modules/_winapi.c

@@ -177,7 +177,7 @@ overlapped_dealloc(OverlappedObject *self)
             PyErr_SetString(PyExc_PythonFinalizationError,
                             "I/O operations still in flight while destroying "
                             "Overlapped object, the process may crash");
-            PyErr_FormatUnraisable("Exception ignored when deallocating "
+            PyErr_FormatUnraisable("Exception ignored while deallocating "
                                    "overlapped operation %R", self);
         }
         else {

Modules/atexitmodule.c

@@ -110,7 +110,7 @@ atexit_callfuncs(struct atexit_state *state)
     PyObject *copy = PyList_GetSlice(state->callbacks, 0, PyList_GET_SIZE(state->callbacks));
     if (copy == NULL)
     {
-        PyErr_FormatUnraisable("Exception ignored when "
+        PyErr_FormatUnraisable("Exception ignored while "
                                "copying atexit callbacks");
         return;
     }

Modules/getpath.c

@@ -955,7 +955,7 @@ _PyConfig_InitPathConfig(PyConfig *config, int compute_path_config)
     ) {
         Py_DECREF(co);
         Py_DECREF(dict);
-        PyErr_FormatUnraisable("Exception ignored in preparing getpath");
+        PyErr_FormatUnraisable("Exception ignored while preparing getpath");
         return PyStatus_Error("error evaluating initial values");
     }
 
@@ -964,13 +964,13 @@ _PyConfig_InitPathConfig(PyConfig *config, int compute_path_config)
 
     if (!r) {
         Py_DECREF(dict);
-        PyErr_FormatUnraisable("Exception ignored in running getpath");
+        PyErr_FormatUnraisable("Exception ignored while running getpath");
         return PyStatus_Error("error evaluating path");
     }
     Py_DECREF(r);
 
     if (_PyConfig_FromDict(config, configDict) < 0) {
-        PyErr_FormatUnraisable("Exception ignored in reading getpath results");
+        PyErr_FormatUnraisable("Exception ignored while reading getpath results");
         Py_DECREF(dict);
         return PyStatus_Error("error getting getpath results");
     }

Modules/overlapped.c

@@ -759,7 +759,7 @@ Overlapped_dealloc(OverlappedObject *self)
                     PyExc_RuntimeError,
                     "%R still has pending operation at "
                     "deallocation, the process may crash", self);
-                PyErr_FormatUnraisable("Exception ignored when deallocating "
+                PyErr_FormatUnraisable("Exception ignored while deallocating "
                                        "overlapped operation %R", self);
         }
     }

Modules/signalmodule.c

@@ -245,7 +245,8 @@ report_wakeup_write_error(void *data)
     errno = (int) (intptr_t) data;
     PyObject *exc = PyErr_GetRaisedException();
     PyErr_SetFromErrno(PyExc_OSError);
-    PyErr_FormatUnraisable("Exception ignored when trying to write to the signal wakeup fd");
+    PyErr_FormatUnraisable("Exception ignored while "
+                           "trying to write to the signal wakeup fd");
     PyErr_SetRaisedException(exc);
     errno = save_errno;
     return 0;
@@ -262,7 +263,8 @@ report_wakeup_send_error(void* data)
        recognizes the error codes used by both GetLastError() and
        WSAGetLastError */
     PyErr_SetExcFromWindowsErr(PyExc_OSError, send_errno);
-    PyErr_FormatUnraisable("Exception ignored when trying to send to the signal wakeup fd");
+    PyErr_FormatUnraisable("Exception ignored while "
+                           "trying to send to the signal wakeup fd");
     PyErr_SetRaisedException(exc);
     return 0;
 }
@@ -1837,7 +1839,7 @@ _PyErr_CheckSignalsTstate(PyThreadState *tstate)
             PyErr_Format(PyExc_OSError,
                          "Signal %i ignored due to race condition",
                          i);
-            PyErr_FormatUnraisable("Exception ignored when "
+            PyErr_FormatUnraisable("Exception ignored while "
                                    "calling signal handler");
             continue;
         }

Objects/dictobject.c

@@ -7351,7 +7351,7 @@ PyObject_ClearManagedDict(PyObject *obj)
     if (set_or_clear_managed_dict(obj, NULL, true) < 0) {
         /* Must be out of memory */
         assert(PyErr_Occurred() == PyExc_MemoryError);
-        PyErr_FormatUnraisable("Exception ignored when "
+        PyErr_FormatUnraisable("Exception ignored while "
                                "clearing an object managed dict");
         /* Clear the dict */
         PyDictObject *dict = _PyObject_GetManagedDict(obj);

Objects/moduleobject.c

@@ -703,7 +703,8 @@ _PyModule_ClearDict(PyObject *d)
                         PyErr_Clear();
                 }
                 if (PyDict_SetItem(d, key, Py_None) != 0) {
-                    PyErr_FormatUnraisable("Exception ignored on clearing module dict");
+                    PyErr_FormatUnraisable("Exception ignored while "
+                                           "clearing module dict");
                 }
             }
         }
@@ -724,7 +725,8 @@ _PyModule_ClearDict(PyObject *d)
                         PyErr_Clear();
                 }
                 if (PyDict_SetItem(d, key, Py_None) != 0) {
-                    PyErr_FormatUnraisable("Exception ignored on clearing module dict");
+                    PyErr_FormatUnraisable("Exception ignored while "
+                                           "clearing module dict");
                 }
             }
         }

Objects/weakrefobject.c

@@ -1042,7 +1042,8 @@ PyObject_ClearWeakRefs(PyObject *object)
     PyObject *tuple = PyTuple_New(num_weakrefs * 2);
     if (tuple == NULL) {
         _PyWeakref_ClearWeakRefsNoCallbacks(object);
-        PyErr_FormatUnraisable("Exception ignored when clearing object weakrefs");
+        PyErr_FormatUnraisable("Exception ignored while "
+                               "clearing object weakrefs");
         PyErr_SetRaisedException(exc);
         return;
     }

Python/compile.c

@@ -704,12 +704,12 @@ _PyCompile_ExitScope(compiler *c)
         assert(c->u);
         /* we are deleting from a list so this really shouldn't fail */
         if (PySequence_DelItem(c->c_stack, n) < 0) {
-            PyErr_FormatUnraisable("Exception ignored on removing "
+            PyErr_FormatUnraisable("Exception ignored while removing "
                                    "the last compiler stack item");
         }
         if (nested_seq != NULL) {
             if (_PyInstructionSequence_AddNested(c->u->u_instr_sequence, nested_seq) < 0) {
-                PyErr_FormatUnraisable("Exception ignored on appending "
+                PyErr_FormatUnraisable("Exception ignored while appending "
                                        "nested instruction sequence");
             }
         }

Python/crossinterp.c

@@ -784,7 +784,8 @@ _PyXI_excinfo_Apply(_PyXI_excinfo *info, PyObject *exctype)
         PyObject *exc = PyErr_GetRaisedException();
         if (PyObject_SetAttrString(exc, "_errdisplay", tbexc) < 0) {
 #ifdef Py_DEBUG
-            PyErr_FormatUnraisable("Exception ignored when setting _errdisplay");
+            PyErr_FormatUnraisable("Exception ignored while "
+                                   "setting _errdisplay");
 #endif
             PyErr_Clear();
         }

Python/errors.c

@@ -1633,7 +1633,7 @@ format_unraisable_v(const char *format, va_list va, PyObject *obj)
     PyObject *hook_args = make_unraisable_hook_args(
         tstate, exc_type, exc_value, exc_tb, err_msg, obj);
     if (hook_args == NULL) {
-        err_msg_str = ("Exception ignored on building "
+        err_msg_str = ("Exception ignored while building "
                        "sys.unraisablehook arguments");
         goto error;
     }

Python/gc.c

@@ -1779,15 +1779,15 @@ do_gc_callback(GCState *gcstate, const char *phase,
             "collected", stats->collected,
             "uncollectable", stats->uncollectable);
         if (info == NULL) {
-            PyErr_FormatUnraisable("Exception ignored on invoking gc callbacks");
+            PyErr_FormatUnraisable("Exception ignored while invoking gc callbacks");
             return;
         }
     }
 
     PyObject *phase_obj = PyUnicode_FromString(phase);
     if (phase_obj == NULL) {
         Py_XDECREF(info);
-        PyErr_FormatUnraisable("Exception ignored on invoking gc callbacks");
+        PyErr_FormatUnraisable("Exception ignored while invoking gc callbacks");
         return;
     }
 

Python/gc_free_threading.c

@@ -1427,15 +1427,17 @@ invoke_gc_callback(PyThreadState *tstate, const char *phase,
             "collected", collected,
             "uncollectable", uncollectable);
         if (info == NULL) {
-            PyErr_FormatUnraisable("Exception ignored on invoking gc callbacks");
+            PyErr_FormatUnraisable("Exception ignored while "
+                                   "invoking gc callbacks");
             return;
         }
     }
 
     PyObject *phase_obj = PyUnicode_FromString(phase);
     if (phase_obj == NULL) {
         Py_XDECREF(info);
-        PyErr_FormatUnraisable("Exception ignored on invoking gc callbacks");
+        PyErr_FormatUnraisable("Exception ignored while "
+                               "invoking gc callbacks");
         return;
     }
 

Python/import.c

@@ -594,7 +594,8 @@ _PyImport_ClearModulesByIndex(PyInterpreterState *interp)
     if (PyList_SetSlice(MODULES_BY_INDEX(interp),
                         0, PyList_GET_SIZE(MODULES_BY_INDEX(interp)),
                         NULL)) {
-        PyErr_FormatUnraisable("Exception ignored on clearing interpreters module list");
+        PyErr_FormatUnraisable("Exception ignored while "
+                               "clearing interpreters module list");
     }
 }
 
@@ -4080,13 +4081,15 @@ _PyImport_FiniCore(PyInterpreterState *interp)
     int verbose = _PyInterpreterState_GetConfig(interp)->verbose;
 
     if (_PySys_ClearAttrString(interp, "meta_path", verbose) < 0) {
-        PyErr_FormatUnraisable("Exception ignored on clearing sys.meta_path");
+        PyErr_FormatUnraisable("Exception ignored while "
+                               "clearing sys.meta_path");
     }
 
     // XXX Pull in most of finalize_modules() in pylifecycle.c.
 
     if (_PySys_ClearAttrString(interp, "modules", verbose) < 0) {
-        PyErr_FormatUnraisable("Exception ignored on clearing sys.modules");
+        PyErr_FormatUnraisable("Exception ignored while "
+                               "clearing sys.modules");
     }
 
     _PyImport_ClearCore(interp);
@@ -4161,10 +4164,12 @@ _PyImport_FiniExternal(PyInterpreterState *interp)
     // XXX Uninstall importlib metapath importers here?
 
     if (_PySys_ClearAttrString(interp, "path_importer_cache", verbose) < 0) {
-        PyErr_FormatUnraisable("Exception ignored on clearing sys.path_importer_cache");
+        PyErr_FormatUnraisable("Exception ignored while "
+                               "clearing sys.path_importer_cache");
     }
     if (_PySys_ClearAttrString(interp, "path_hooks", verbose) < 0) {
-        PyErr_FormatUnraisable("Exception ignored on clearing sys.path_hooks");
+        PyErr_FormatUnraisable("Exception ignored while "
+                               "clearing sys.path_hooks");
     }
 }
 

Python/jit.c

@@ -563,7 +563,8 @@ _PyJIT_Free(_PyExecutorObject *executor)
         executor->jit_side_entry = NULL;
         executor->jit_size = 0;
         if (jit_free(memory, size)) {
-            PyErr_FormatUnraisable("Exception ignored when freeing JIT memory");
+            PyErr_FormatUnraisable("Exception ignored while "
+                                   "freeing JIT memory");
         }
     }
 }