Issue #29311: Argument Clinic generates reasonable name for the parameter "default".

Objects/clinic/dictobject.c.h

@@ -55,25 +55,25 @@ PyDoc_STRVAR(dict_get__doc__,
     {"get", (PyCFunction)dict_get, METH_FASTCALL, dict_get__doc__},
 
 static PyObject *
-dict_get_impl(PyDictObject *self, PyObject *key, PyObject *failobj);
+dict_get_impl(PyDictObject *self, PyObject *key, PyObject *default_value);
 
 static PyObject *
 dict_get(PyDictObject *self, PyObject **args, Py_ssize_t nargs, PyObject *kwnames)
 {
     PyObject *return_value = NULL;
     PyObject *key;
-    PyObject *failobj = Py_None;
+    PyObject *default_value = Py_None;
 
     if (!_PyArg_UnpackStack(args, nargs, "get",
         1, 2,
-        &key, &failobj)) {
+        &key, &default_value)) {
         goto exit;
     }
 
     if (!_PyArg_NoStackKeywords("get", kwnames)) {
         goto exit;
     }
-    return_value = dict_get_impl(self, key, failobj);
+    return_value = dict_get_impl(self, key, default_value);
 
 exit:
     return return_value;
@@ -89,27 +89,28 @@ PyDoc_STRVAR(dict_setdefault__doc__,
     {"setdefault", (PyCFunction)dict_setdefault, METH_FASTCALL, dict_setdefault__doc__},
 
 static PyObject *
-dict_setdefault_impl(PyDictObject *self, PyObject *key, PyObject *defaultobj);
+dict_setdefault_impl(PyDictObject *self, PyObject *key,
+                     PyObject *default_value);
 
 static PyObject *
 dict_setdefault(PyDictObject *self, PyObject **args, Py_ssize_t nargs, PyObject *kwnames)
 {
     PyObject *return_value = NULL;
     PyObject *key;
-    PyObject *defaultobj = Py_None;
+    PyObject *default_value = Py_None;
 
     if (!_PyArg_UnpackStack(args, nargs, "setdefault",
         1, 2,
-        &key, &defaultobj)) {
+        &key, &default_value)) {
         goto exit;
     }
 
     if (!_PyArg_NoStackKeywords("setdefault", kwnames)) {
         goto exit;
     }
-    return_value = dict_setdefault_impl(self, key, defaultobj);
+    return_value = dict_setdefault_impl(self, key, default_value);
 
 exit:
     return return_value;
 }
-/*[clinic end generated code: output=1b0cea84b4b6989e input=a9049054013a1b77]*/
+/*[clinic end generated code: output=6e9d917602373072 input=a9049054013a1b77]*/

Objects/dictobject.c

@@ -2794,15 +2794,15 @@ dict___contains__(PyDictObject *self, PyObject *key)
 dict.get
 
     key: object
-    default as failobj: object = None
+    default: object = None
     /
 
 D.get(key[, default]) -> D[key] if key in D, else default.
 [clinic start generated code]*/
 
 static PyObject *
-dict_get_impl(PyDictObject *self, PyObject *key, PyObject *failobj)
+dict_get_impl(PyDictObject *self, PyObject *key, PyObject *default_value)
-/*[clinic end generated code: output=c4a84a7ddbca9b7b input=7c976a78f258e915]*/
+/*[clinic end generated code: output=bba707729dee05bf input=e73ab0f028f4b2be]*/
 {
     PyObject *val = NULL;
     Py_hash_t hash;
@@ -2818,7 +2818,7 @@ dict_get_impl(PyDictObject *self, PyObject *key, PyObject *failobj)
     if (ix == DKIX_ERROR)
         return NULL;
     if (ix == DKIX_EMPTY || val == NULL) {
-        val = failobj;
+        val = default_value;
     }
     Py_INCREF(val);
     return val;
@@ -2912,19 +2912,20 @@ PyDict_SetDefault(PyObject *d, PyObject *key, PyObject *defaultobj)
 dict.setdefault
 
     key: object
-    default as defaultobj: object = None
+    default: object = None
     /
 
 D.get(key,default), also set D[key]=default if key not in D.
 [clinic start generated code]*/
 
 static PyObject *
-dict_setdefault_impl(PyDictObject *self, PyObject *key, PyObject *defaultobj)
+dict_setdefault_impl(PyDictObject *self, PyObject *key,
-/*[clinic end generated code: output=692f85384b0b292e input=178f0c81d496d5cd]*/
+                     PyObject *default_value)
+/*[clinic end generated code: output=f8c1101ebf69e220 input=b2826255bacd845a]*/
 {
     PyObject *val;
 
-    val = PyDict_SetDefault((PyObject *)self, key, defaultobj);
+    val = PyDict_SetDefault((PyObject *)self, key, default_value);
     Py_XINCREF(val);
     return val;
 }