Merge branch '3.13' into backport-5915a1f-3.13

Author: AbduazizZiyodov

Doc/library/shutil.rst

@@ -381,10 +381,14 @@ Directory and files operations
    If *dst* already exists but is not a directory, it may be overwritten
    depending on :func:`os.rename` semantics.
 
-   If the destination is on the current filesystem, then :func:`os.rename` is
-   used. Otherwise, *src* is copied to the destination using *copy_function*
-   and then removed.  In case of symlinks, a new symlink pointing to the target
-   of *src* will be created as the destination and *src* will be removed.
+   :func:`os.rename` is preferably used internally when *src* and the destination are on
+   the same filesystem. In case :func:`os.rename` fails due to :exc:`OSError`
+   (e.g. the user has write permission to the destination file but not to its parent
+   directory), this method falls back to using *copy_function*, in which case
+   *src* is copied to the destination using *copy_function* and then removed.
+
+   In case of symlinks, a new symlink pointing to the target of *src* will be
+   created in or as the destination, and *src* will be removed.
 
    If *copy_function* is given, it must be a callable that takes two arguments,
    *src* and the destination, and will be used to copy *src* to the destination

Lib/shutil.py

@@ -823,10 +823,14 @@ def move(src, dst, copy_function=copy2):
     If dst already exists but is not a directory, it may be overwritten
     depending on os.rename() semantics.
 
-    If the destination is on our current filesystem, then rename() is used.
-    Otherwise, src is copied to the destination and then removed. Symlinks are
-    recreated under the new name if os.rename() fails because of cross
-    filesystem renames.
+    os.rename() is preferably used if the source and destination are on the
+    same filesystem. In case os.rename() fails due to OSError (e.g. the user
+    has write permission to *dst* file but not to its parent directory),
+    this method falls back to using *copy_function* silently.
+    Symlinks are also recreated under the new name if os.rename() fails
+    because of cross filesystem renames.
+
+    It's recommended to use os.rename() if atomic move is strictly required.
 
     The optional `copy_function` argument is a callable that will be used
     to copy the source or it will be delegated to `copytree`.

Mac/BuildScript/build-installer.py

@@ -264,10 +264,10 @@ def library_recipes():
             tk_patches = ['backport_gh71383_fix.patch', 'tk868_on_10_8_10_9.patch', 'backport_gh110950_fix.patch']
 
         else:
-            tcl_tk_ver='8.6.17'
-            tcl_checksum='a3903371efcce8a405c5c245d029e9f6850258a60fa3761c4d58995610949b31'
+            tcl_tk_ver='8.6.18'
+            tcl_checksum='14f9af32b1767ff718477a8f974ad03c34341097e6b43f4ce54644ee974e268e'
 
-            tk_checksum='e4982df6f969c08bf9dd858a6891059b4a3f50dc6c87c10abadbbe2fc4838946'
+            tk_checksum='95cd528a80f5e4bdb557af9b14a7197d6860793a3894e25e7c9fad2ed05d4c3c'
             tk_patches = []
 
 
@@ -378,9 +378,9 @@ def library_recipes():
               install=f"make && ranlib libsqlite3.a && make install DESTDIR={shellQuote(os.path.join(WORKDIR, 'libraries'))}",
           ),
           dict(
-              name="libmpdec 4.0.0",
-              url="https://www.bytereef.org/software/mpdecimal/releases/mpdecimal-4.0.0.tar.gz",
-              checksum="942445c3245b22730fd41a67a7c5c231d11cb1b9936b9c0f76334fb7d0b4468c",
+              name="libmpdec 4.0.1",
+              url="https://www.bytereef.org/software/mpdecimal/releases/mpdecimal-4.0.1.tar.gz",
+              checksum="96d33abb4bb0070c7be0fed4246cd38416188325f820468214471938545b1ac8",
               configure_pre=[
                   "--disable-cxx",
                   "MACHINE=universal",

Misc/NEWS.d/next/Core_and_Builtins/2026-06-09-10-28-30.gh-issue-151126.DKa6Sl.rst

@@ -0,0 +1,3 @@
+Fix a crash, when there's no memory left on a device,
+which happened in code compilation.
+Now it raises a proper :exc:`MemoryError`.

Misc/NEWS.d/next/Documentation/2023-09-16-23-42-27.gh-issue-109503.mZ-kdU.rst

@@ -0,0 +1,3 @@
+Fix documentation for :func:`shutil.move` on usage of
+:func:`os.rename` since nonatomic move might be used even if the files are
+on the same filesystem. Patch by Fang Li

Misc/NEWS.d/next/macOS/2025-10-14-00-17-48.gh-issue-115119.470I1N.rst

@@ -0,0 +1 @@
+Update macOS installer to use libmpdecimal 4.0.1.

Misc/NEWS.d/next/macOS/2026-06-09-01-27-48.gh-issue-124111.MDDDD6.rst

@@ -0,0 +1 @@
+Update macOS installer to use Tcl/Tk 8.6.18.

Python/flowgraph.c

@@ -2040,6 +2040,7 @@ remove_unused_consts(basicblock *entryblock, PyObject *consts)
 
     index_map = PyMem_Malloc(nconsts * sizeof(Py_ssize_t));
     if (index_map == NULL) {
+        PyErr_NoMemory();
         goto end;
     }
     for (Py_ssize_t i = 1; i < nconsts; i++) {
@@ -2097,6 +2098,7 @@ remove_unused_consts(basicblock *entryblock, PyObject *consts)
     /* adjust const indices in the bytecode */
     reverse_index_map = PyMem_Malloc(nconsts * sizeof(Py_ssize_t));
     if (reverse_index_map == NULL) {
+        PyErr_NoMemory();
         goto end;
     }
     for (Py_ssize_t i = 0; i < nconsts; i++) {