Issue #19512: Add a new _PyDict_DelItemId() function, similar to

PyDict_DelItemString() but using an identifier for the key

Include/dictobject.h

@@ -109,6 +109,7 @@ PyAPI_FUNC(PyObject *) _PyDict_GetItemId(PyObject *dp, struct _Py_Identifier *ke
 PyAPI_FUNC(int) PyDict_SetItemString(PyObject *dp, const char *key, PyObject *item);
 PyAPI_FUNC(int) _PyDict_SetItemId(PyObject *dp, struct _Py_Identifier *key, PyObject *item);
 PyAPI_FUNC(int) PyDict_DelItemString(PyObject *dp, const char *key);
+PyAPI_FUNC(int) _PyDict_DelItemId(PyObject *mp, struct _Py_Identifier *key);
 
 #ifndef Py_LIMITED_API
 int _PyObjectDict_SetItem(PyTypeObject *tp, PyObject **dictptr, PyObject *name, PyObject *value);

Objects/dictobject.c

@@ -2735,6 +2735,15 @@ PyDict_SetItemString(PyObject *v, const char *key, PyObject *item)
     return err;
 }
 
+int
+_PyDict_DelItemId(PyObject *v, _Py_Identifier *key)
+{
+    PyObject *kv = _PyUnicode_FromId(key); /* borrowed */
+    if (kv == NULL)
+        return -1;
+    return PyDict_DelItem(v, kv);
+}
+
 int
 PyDict_DelItemString(PyObject *v, const char *key)
 {