diff --git a/Objects/dictobject.c b/Objects/dictobject.c index 1c9f86438dadc3..05c93a3e448181 100644 --- a/Objects/dictobject.c +++ b/Objects/dictobject.c @@ -588,11 +588,14 @@ estimate_log2_keysize(Py_ssize_t n) /* This immutable, empty PyDictKeysObject is used for PyDict_Clear() * (which cannot fail and thus can do no allocation). + * + * See https://github.com/python/cpython/pull/127568#discussion_r1868070614 + * for the rationale of using dk_log2_index_bytes=3 instead of 0. */ static PyDictKeysObject empty_keys_struct = { _Py_DICT_IMMORTAL_INITIAL_REFCNT, /* dk_refcnt */ 0, /* dk_log2_size */ - 0, /* dk_log2_index_bytes */ + 3, /* dk_log2_index_bytes */ DICT_KEYS_UNICODE, /* dk_kind */ #ifdef Py_GIL_DISABLED {0}, /* dk_mutex */