[pull] main from python:main

.github/workflows/mypy.yml

@@ -13,9 +13,11 @@ on:
       - "Lib/test/libregrtest/**"
       - "Lib/tomllib/**"
       - "Misc/mypy/**"
+      - "Tools/build/check_extension_modules.py"
       - "Tools/build/compute-changes.py"
       - "Tools/build/deepfreeze.py"
       - "Tools/build/generate_sbom.py"
+      - "Tools/build/generate_stdlib_module_names.py"
       - "Tools/build/generate-build-details.py"
       - "Tools/build/verify_ensurepip_wheels.py"
       - "Tools/build/update_file.py"

Include/internal/pycore_global_strings.h

@@ -333,6 +333,7 @@ struct _Py_global_strings {
         STRUCT_FOR_ID(call)
         STRUCT_FOR_ID(call_exception_handler)
         STRUCT_FOR_ID(call_soon)
+        STRUCT_FOR_ID(callable)
         STRUCT_FOR_ID(callback)
         STRUCT_FOR_ID(cancel)
         STRUCT_FOR_ID(capath)
@@ -368,6 +369,7 @@ struct _Py_global_strings {
         STRUCT_FOR_ID(command)
         STRUCT_FOR_ID(comment_factory)
         STRUCT_FOR_ID(compile_mode)
+        STRUCT_FOR_ID(config)
         STRUCT_FOR_ID(consts)
         STRUCT_FOR_ID(context)
         STRUCT_FOR_ID(contravariant)
@@ -426,6 +428,7 @@ struct _Py_global_strings {
         STRUCT_FOR_ID(errors)
         STRUCT_FOR_ID(event)
         STRUCT_FOR_ID(eventmask)
+        STRUCT_FOR_ID(exc)
         STRUCT_FOR_ID(exc_type)
         STRUCT_FOR_ID(exc_value)
         STRUCT_FOR_ID(excepthook)
@@ -497,6 +500,7 @@ struct _Py_global_strings {
         STRUCT_FOR_ID(identity_hint)
         STRUCT_FOR_ID(ignore)
         STRUCT_FOR_ID(imag)
+        STRUCT_FOR_ID(implieslink)
         STRUCT_FOR_ID(importlib)
         STRUCT_FOR_ID(in_fd)
         STRUCT_FOR_ID(include_aliases)
@@ -546,6 +550,7 @@ struct _Py_global_strings {
         STRUCT_FOR_ID(kw)
         STRUCT_FOR_ID(kw1)
         STRUCT_FOR_ID(kw2)
+        STRUCT_FOR_ID(kwargs)
         STRUCT_FOR_ID(kwdefaults)
         STRUCT_FOR_ID(label)
         STRUCT_FOR_ID(last)
@@ -662,6 +667,7 @@ struct _Py_global_strings {
         STRUCT_FOR_ID(pos1)
         STRUCT_FOR_ID(pos2)
         STRUCT_FOR_ID(posix)
+        STRUCT_FOR_ID(preserve_exc)
         STRUCT_FOR_ID(print_file_and_line)
         STRUCT_FOR_ID(priority)
         STRUCT_FOR_ID(progress)
@@ -689,9 +695,12 @@ struct _Py_global_strings {
         STRUCT_FOR_ID(reload)
         STRUCT_FOR_ID(repl)
         STRUCT_FOR_ID(replace)
+        STRUCT_FOR_ID(reqrefs)
+        STRUCT_FOR_ID(require_ready)
         STRUCT_FOR_ID(reserved)
         STRUCT_FOR_ID(reset)
         STRUCT_FOR_ID(resetids)
+        STRUCT_FOR_ID(restrict)
         STRUCT_FOR_ID(return)
         STRUCT_FOR_ID(reverse)
         STRUCT_FOR_ID(reversed)
@@ -718,6 +727,7 @@ struct _Py_global_strings {
         STRUCT_FOR_ID(setsigmask)
         STRUCT_FOR_ID(setstate)
         STRUCT_FOR_ID(shape)
+        STRUCT_FOR_ID(shared)
         STRUCT_FOR_ID(show_cmd)
         STRUCT_FOR_ID(signed)
         STRUCT_FOR_ID(size)
@@ -788,6 +798,7 @@ struct _Py_global_strings {
         STRUCT_FOR_ID(uid)
         STRUCT_FOR_ID(unlink)
         STRUCT_FOR_ID(unraisablehook)
+        STRUCT_FOR_ID(updates)
         STRUCT_FOR_ID(uri)
         STRUCT_FOR_ID(usedforsecurity)
         STRUCT_FOR_ID(value)

Include/internal/pycore_magic_number.h

@@ -277,6 +277,8 @@ Known values:
     Python 3.14a7 3622 (Store annotations in different class dict keys)
     Python 3.14a7 3623 (Add BUILD_INTERPOLATION & BUILD_TEMPLATE opcodes)
     Python 3.14b1 3624 (Don't optimize LOAD_FAST when local is killed by DELETE_FAST)
+    Python 3.14b3 3625 (Fix handling of opcodes that may leave operands on the stack when optimizing LOAD_FAST)
+    Python 3.14rc2 3626 (Fix missing exception handlers in logical expression)
     Python 3.15a0 3650 (Initial version)
     Python 3.15a1 3651 (Simplify LOAD_CONST)
     Python 3.15a1 3652 (Virtual iterators)

Lib/dataclasses.py

@@ -1283,6 +1283,10 @@ def _add_slots(cls, is_frozen, weakref_slot, defined_fields):
     if '__slots__' in cls.__dict__:
         raise TypeError(f'{cls.__name__} already specifies __slots__')
 
+    # gh-102069: Remove existing __weakref__ descriptor.
+    # gh-135228: Make sure the original class can be garbage collected.
+    sys._clear_type_descriptors(cls)
+
     # Create a new dict for our new class.
     cls_dict = dict(cls.__dict__)
     field_names = tuple(f.name for f in fields(cls))
@@ -1300,12 +1304,6 @@ def _add_slots(cls, is_frozen, weakref_slot, defined_fields):
         #  available in _MARKER.
         cls_dict.pop(field_name, None)
 
-    # Remove __dict__ itself.
-    cls_dict.pop('__dict__', None)
-
-    # Clear existing `__weakref__` descriptor, it belongs to a previous type:
-    cls_dict.pop('__weakref__', None)  # gh-102069
-
     # And finally create the class.
     qualname = getattr(cls, '__qualname__', None)
     newcls = type(cls)(cls.__name__, cls.__bases__, cls_dict)