diff --git a/Doc/c-api/object.rst b/Doc/c-api/object.rst
index 78599e704b1317c..56857929a5a72ac 100644
--- a/Doc/c-api/object.rst
+++ b/Doc/c-api/object.rst
@@ -600,7 +600,7 @@ Object Protocol
 
    Clear the managed dictionary of *obj*.
 
-   This function must only be called in a traverse function of the type which
+   This function must only be called in a clear function of the type which
    has the :c:macro:`Py_TPFLAGS_MANAGED_DICT` flag set.
 
    .. versionadded:: 3.13
diff --git a/Doc/c-api/typeobj.rst b/Doc/c-api/typeobj.rst
index 8bd3144f88aa71a..5b7cf0c45026a9a 100644
--- a/Doc/c-api/typeobj.rst
+++ b/Doc/c-api/typeobj.rst
@@ -1704,7 +1704,7 @@ and :c:data:`PyType_Type` effectively act as defaults.)
    :c:func:`Py_CLEAR` macro performs the operations in a safe order.
 
    If the :c:macro:`Py_TPFLAGS_MANAGED_DICT` bit is set in the
-   :c:member:`~PyTypeObject.tp_flags` field, the traverse function must call
+   :c:member:`~PyTypeObject.tp_flags` field, the clear function must call
    :c:func:`PyObject_ClearManagedDict` like this::
 
        PyObject_ClearManagedDict((PyObject*)self);
diff --git a/Doc/using/cmdline.rst b/Doc/using/cmdline.rst
index 74c18c2a6ede9c6..773fdabe99e0ed8 100644
--- a/Doc/using/cmdline.rst
+++ b/Doc/using/cmdline.rst
@@ -1277,9 +1277,8 @@ conflict.
 .. envvar:: PYTHON_BASIC_REPL
 
    If this variable is set to any value, the interpreter will not attempt to
-   load the Python-based :term:`REPL` that requires :mod:`curses` and
-   :mod:`readline`, and will instead use the traditional parser-based
-   :term:`REPL`.
+   load the Python-based :term:`REPL` that requires :mod:`readline`, and will
+   instead use the traditional parser-based :term:`REPL`.
 
    .. versionadded:: 3.13
 
diff --git a/Misc/NEWS.d/next/Core_and_Builtins/2025-10-12-18-54-06.gh-issue-140009.-MbFh_.rst b/Misc/NEWS.d/next/Core_and_Builtins/2025-10-12-18-54-06.gh-issue-140009.-MbFh_.rst
new file mode 100644
index 000000000000000..97b35c88e17e370
--- /dev/null
+++ b/Misc/NEWS.d/next/Core_and_Builtins/2025-10-12-18-54-06.gh-issue-140009.-MbFh_.rst
@@ -0,0 +1 @@
+Improve performance of list extension by dictionary items.
diff --git a/Modules/_tkinter.c b/Modules/_tkinter.c
index f0882191d3c3e81..c0ed8977d8fd6fa 100644
--- a/Modules/_tkinter.c
+++ b/Modules/_tkinter.c
@@ -82,33 +82,10 @@ typedef int Tcl_Size;
 
 #ifdef HAVE_CREATEFILEHANDLER
 
-/* This bit is to ensure that TCL_UNIX_FD is defined and doesn't interfere
-   with the proper calculation of FHANDLETYPE == TCL_UNIX_FD below. */
-#ifndef TCL_UNIX_FD
-#  ifdef TCL_WIN_SOCKET
-#    define TCL_UNIX_FD (! TCL_WIN_SOCKET)
-#  else
-#    define TCL_UNIX_FD 1
-#  endif
-#endif
-
-/* Tcl_CreateFileHandler() changed several times; these macros deal with the
-   messiness.  In Tcl 8.0 and later, it is not available on Windows (and on
-   Unix, only because Jack added it back); when available on Windows, it only
-   applies to sockets. */
-
-#ifdef MS_WINDOWS
-#define FHANDLETYPE TCL_WIN_SOCKET
-#else
-#define FHANDLETYPE TCL_UNIX_FD
-#endif
-
 /* If Tcl can wait for a Unix file descriptor, define the EventHook() routine
    which uses this to handle Tcl events while the user is typing commands. */
 
-#if FHANDLETYPE == TCL_UNIX_FD
 #define WAIT_FOR_STDIN
-#endif
 
 #endif /* HAVE_CREATEFILEHANDLER */
 
diff --git a/Objects/listobject.c b/Objects/listobject.c
index b2903e5c93ee9ff..1722ea60cdc68fb 100644
--- a/Objects/listobject.c
+++ b/Objects/listobject.c
@@ -1382,9 +1382,9 @@ list_extend_dictitems(PyListObject *self, PyDictObject *dict)
     PyObject **dest = self->ob_item + m;
     Py_ssize_t pos = 0;
     Py_ssize_t i = 0;
-    PyObject *key, *value;
-    while (_PyDict_Next((PyObject *)dict, &pos, &key, &value, NULL)) {
-        PyObject *item = PyTuple_Pack(2, key, value);
+    PyObject *key_value[2];
+    while (_PyDict_Next((PyObject *)dict, &pos, &key_value[0], &key_value[1], NULL)) {
+        PyObject *item = PyTuple_FromArray(key_value, 2);
         if (item == NULL) {
             Py_SET_SIZE(self, m + i);
             return -1;