Merge branch 'main' into gh-143005-ctypes-class-safety

Author: serhiy-storchaka

.gitattributes

@@ -34,6 +34,9 @@ Lib/test/xmltestdata/*                     noeol
 Lib/venv/scripts/common/activate text eol=lf
 Lib/venv/scripts/posix/* text eol=lf
 
+# Prevent GitHub's web conflict editor from converting LF to CRLF
+*.rst text eol=lf
+
 # CRLF files
 [attr]dos text eol=crlf
 
@@ -81,6 +84,7 @@ Include/internal/pycore_uop_ids.h                   generated
 Include/internal/pycore_uop_metadata.h              generated
 Include/opcode.h                                    generated
 Include/opcode_ids.h                                generated
+Include/slots_generated.h                           generated
 Include/token.h                                     generated
 Lib/_opcode_metadata.py                             generated
 Lib/idlelib/help.html                               generated
@@ -94,7 +98,8 @@ Lib/test/test_stable_abi_ctypes.py                  generated
 Lib/test/test_zoneinfo/data/*.json                  generated
 Lib/token.py                                        generated
 Misc/sbom.spdx.json                                 generated
-Objects/typeslots.inc                               generated
+Modules/_testinternalcapi/test_cases.c.h            generated
+Modules/_testinternalcapi/test_targets.h            generated
 PC/python3dll.c                                     generated
 Parser/parser.c                                     generated
 Parser/token.c                                      generated
@@ -104,8 +109,11 @@ Python/executor_cases.c.h                           generated
 Python/generated_cases.c.h                          generated
 Python/optimizer_cases.c.h                          generated
 Python/opcode_targets.h                             generated
+Python/record_functions.c.h                         generated
+Python/slots_generated.c                            generated
 Python/stdlib_module_names.h                        generated
 Tools/peg_generator/pegen/grammar_parser.py         generated
 aclocal.m4                                          generated
 configure                                           generated
 *.min.js                                            generated
+package-lock.json                                   generated

.github/CODEOWNERS

@@ -63,9 +63,10 @@
 .azure-pipelines/             @AA-Turner
 
 # GitHub & related scripts
-.github/                               @ezio-melotti @hugovk @AA-Turner
-Tools/build/compute-changes.py         @AA-Turner
-Tools/build/verify_ensurepip_wheels.py @AA-Turner @pfmoore @pradyunsg
+.github/                                    @ezio-melotti @hugovk @AA-Turner @webknjaz
+Tools/build/compute-changes.py              @AA-Turner @hugovk @webknjaz
+Lib/test/test_tools/test_compute_changes.py @AA-Turner @hugovk @webknjaz
+Tools/build/verify_ensurepip_wheels.py      @AA-Turner @pfmoore @pradyunsg
 
 # Pre-commit
 .pre-commit-config.yaml       @hugovk
@@ -99,17 +100,18 @@ Lib/test/test_build_details.py          @FFY00
 InternalDocs/                 @AA-Turner
 
 # Tools, Configuration, etc
-Doc/Makefile                  @AA-Turner @hugovk
-Doc/_static/                  @AA-Turner @hugovk
-Doc/conf.py                   @AA-Turner @hugovk
-Doc/make.bat                  @AA-Turner @hugovk
-Doc/requirements.txt          @AA-Turner @hugovk
-Doc/tools/                    @AA-Turner @hugovk
+Doc/Makefile                  @AA-Turner @hugovk @StanFromIreland
+Doc/_static/                  @AA-Turner @hugovk @StanFromIreland
+Doc/conf.py                   @AA-Turner @hugovk @StanFromIreland
+Doc/make.bat                  @AA-Turner @hugovk @StanFromIreland
+Doc/requirements.txt          @AA-Turner @hugovk @StanFromIreland
+Doc/tools/                    @AA-Turner @hugovk @StanFromIreland
 
 # PR Previews
 .readthedocs.yml              @AA-Turner
 
 # Sections
+Doc/c-api/                    @ZeroIntensity
 Doc/reference/                @willingc @AA-Turner
 Doc/whatsnew/                 @AA-Turner
 
@@ -130,7 +132,9 @@ Tools/c-analyzer/             @ericsnowcurrently
 Tools/check-c-api-docs/       @ZeroIntensity
 
 # Fuzzing
-Modules/_xxtestfuzz/          @ammaraskar
+Modules/_xxtestfuzz/                    @python/fuzzers
+Lib/test/test_xxtestfuzz.py             @python/fuzzers
+.github/workflows/reusable-cifuzz.yml   @python/fuzzers
 
 # Limited C API & Stable ABI
 Doc/c-api/stable.rst          @encukou
@@ -152,16 +156,15 @@ Misc/libabigail.abignore      @encukou
 # ----------------------------------------------------------------------------
 
 # Android
-Android/                      @mhsmith @freakboy3742
+Platforms/Android/            @mhsmith @freakboy3742
 Doc/using/android.rst         @mhsmith @freakboy3742
 Lib/_android_support.py       @mhsmith @freakboy3742
 Lib/test/test_android.py      @mhsmith @freakboy3742
 
 # iOS
 Doc/using/ios.rst             @freakboy3742
 Lib/_ios_support.py           @freakboy3742
-Apple/                        @freakboy3742
-iOS/                          @freakboy3742
+Platforms/Apple/              @freakboy3742
 
 # macOS
 Mac/                          @python/macos-team
@@ -172,10 +175,11 @@ Lib/test/test__osx_support.py @python/macos-team
 Tools/wasm/README.md          @brettcannon @freakboy3742 @emmatyping
 
 # WebAssembly (Emscripten)
-Tools/wasm/config.site-wasm32-emscripten  @freakboy3742 @emmatyping
-Tools/wasm/emscripten                     @freakboy3742 @emmatyping
+Platforms/emscripten          @freakboy3742 @emmatyping
+Tools/wasm/emscripten         @freakboy3742 @emmatyping
 
 # WebAssembly (WASI)
+Platforms/WASI                @brettcannon @emmatyping @savannahostrowski
 Tools/wasm/wasi-env           @brettcannon @emmatyping @savannahostrowski
 Tools/wasm/wasi.py            @brettcannon @emmatyping @savannahostrowski
 Tools/wasm/wasi               @brettcannon @emmatyping @savannahostrowski
@@ -257,40 +261,46 @@ Include/pyhash.h                 @gpshead @picnixz
 Python/pyhash.c                  @gpshead @picnixz
 
 # The import system (including importlib)
-**/*import*                   @brettcannon @ericsnowcurrently @ncoghlan @warsaw
-Python/import.c               @brettcannon @ericsnowcurrently @ncoghlan @warsaw @kumaraditya303
+**/*import*                   @brettcannon @ericsnowcurrently @ncoghlan @warsaw @FFY00
+Python/import.c               @brettcannon @ericsnowcurrently @ncoghlan @warsaw @FFY00 @kumaraditya303
 **/*freeze*                   @ericsnowcurrently
 **/*frozen*                   @ericsnowcurrently
 **/*modsupport*               @ericsnowcurrently
-**/*modulefinder*             @ericsnowcurrently
+**/*modulefinder*             @ericsnowcurrently @FFY00
 **/*moduleobject*             @ericsnowcurrently
 **/*multiphase*               @ericsnowcurrently
-**/*pkgutil*                  @ericsnowcurrently
+**/*pkgutil*                  @ericsnowcurrently @FFY00
 **/*pythonrun*                @ericsnowcurrently
-**/*runpy*                    @ericsnowcurrently
+**/*runpy*                    @ericsnowcurrently @FFY00
 **/*singlephase*              @ericsnowcurrently
 Doc/c-api/module.rst          @ericsnowcurrently
 Lib/test/test_module/         @ericsnowcurrently
-Python/dynload_*.c            @ericsnowcurrently
+Python/dynload_*.c            @ericsnowcurrently @FFY00
 
 # Initialisation
-**/*initconfig*               @ericsnowcurrently
-**/*pathconfig*               @ericsnowcurrently
-**/*preconfig*                @ericsnowcurrently
+**/*initconfig*               @ericsnowcurrently @FFY00
+**/*pathconfig*               @ericsnowcurrently @FFY00
+**/*preconfig*                @ericsnowcurrently @FFY00
 Doc/library/sys_path_init.rst @FFY00
 Doc/c-api/init_config.rst     @FFY00
 
 # Interpreter main program
-Modules/main.c                @ericsnowcurrently
-Programs/_bootstrap_python.c  @ericsnowcurrently
-Programs/python.c             @ericsnowcurrently
+Modules/main.c                @ericsnowcurrently @FFY00
+Programs/_bootstrap_python.c  @ericsnowcurrently @FFY00
+Programs/python.c             @ericsnowcurrently @FFY00
 
 # JIT
+.github/workflows/jit.yml     @savannahostrowski
 Include/internal/pycore_jit.h @brandtbucher @savannahostrowski @diegorusso
 Python/jit.c                  @brandtbucher @savannahostrowski @diegorusso
 Tools/jit/                    @brandtbucher @savannahostrowski @diegorusso
 InternalDocs/jit.md           @brandtbucher @savannahostrowski @diegorusso @AA-Turner
 
+# Lazy imports (PEP 810)
+Objects/lazyimportobject.c                  @yhg1s @DinoV @pablogsal
+Include/internal/pycore_lazyimportobject.h  @yhg1s @DinoV @pablogsal
+Lib/test/test_lazy_import                   @yhg1s @DinoV @pablogsal
+
 # Micro-op / μop / Tier 2 Optimiser
 Python/optimizer.c            @markshannon @Fidget-Spinner
 Python/optimizer_analysis.c   @markshannon @tomasr8 @Fidget-Spinner @savannahostrowski
@@ -307,8 +317,8 @@ Tools/peg_generator/          @pablogsal @lysnikolaou
 
 # Runtime state/lifecycle
 **/*gil*                      @ericsnowcurrently
-**/*pylifecycle*              @ericsnowcurrently @ZeroIntensity
-**/*pystate*                  @ericsnowcurrently @ZeroIntensity
+**/*pylifecycle*              @ericsnowcurrently @ZeroIntensity @FFY00
+**/*pystate*                  @ericsnowcurrently @ZeroIntensity @FFY00
 Include/internal/pycore_*_init.h          @ericsnowcurrently
 Include/internal/pycore_*_state.h         @ericsnowcurrently
 Include/internal/pycore_atexit.h          @ericsnowcurrently
@@ -416,18 +426,19 @@ Lib/dataclasses.py            @ericvsmith
 Lib/test/test_dataclasses/    @ericvsmith
 
 # Dates and times
-Doc/**/*time.rst                 @pganssle @abalkin
-Doc/library/zoneinfo.rst         @pganssle
-Include/datetime.h               @pganssle @abalkin
-Include/internal/pycore_time.h   @pganssle @abalkin
-Lib/test/test_zoneinfo/          @pganssle
-Lib/zoneinfo/                    @pganssle
-Lib/*time.py                     @pganssle @abalkin
-Lib/test/datetimetester.py       @pganssle @abalkin
-Lib/test/test_*time.py           @pganssle @abalkin
-Modules/*zoneinfo*               @pganssle
-Modules/*time*                   @pganssle @abalkin
-Python/pytime.c                  @pganssle @abalkin
+Doc/**/*time.rst                 @pganssle @StanFromIreland
+Doc/library/datetime-*           @pganssle @StanFromIreland
+Doc/library/zoneinfo.rst         @pganssle @StanFromIreland
+Include/datetime.h               @pganssle @StanFromIreland
+Include/internal/pycore_time.h   @pganssle @StanFromIreland
+Lib/test/test_zoneinfo/          @pganssle @StanFromIreland
+Lib/zoneinfo/                    @pganssle @StanFromIreland
+Lib/*time.py                     @pganssle @StanFromIreland
+Lib/test/datetimetester.py       @pganssle @StanFromIreland
+Lib/test/test_*time.py           @pganssle @StanFromIreland
+Modules/*zoneinfo*               @pganssle @StanFromIreland
+Modules/*time*                   @pganssle @StanFromIreland
+Python/pytime.c                  @pganssle @StanFromIreland
 
 # Dbm
 Doc/library/dbm.rst           @corona10 @erlend-aasland @serhiy-storchaka
@@ -466,8 +477,9 @@ Lib/test/test_functools.py    @rhettinger
 Modules/_functoolsmodule.c    @rhettinger
 
 # Garbage collector
-Modules/gcmodule.c            @pablogsal
-Doc/library/gc.rst            @pablogsal
+Modules/gcmodule.c                @pablogsal
+Doc/library/gc.rst                @pablogsal
+InternalDocs/garbage_collector.md @pablogsal
 
 # Gettext
 Doc/library/gettext.rst       @tomasr8
@@ -494,13 +506,13 @@ Lib/idlelib/                  @terryjreedy
 Lib/turtledemo/               @terryjreedy
 
 # importlib.metadata
-Doc/library/importlib.metadata.rst  @jaraco @warsaw
-Lib/importlib/metadata/             @jaraco @warsaw
-Lib/test/test_importlib/metadata/   @jaraco @warsaw
+Doc/library/importlib.metadata.rst  @jaraco @warsaw @FFY00
+Lib/importlib/metadata/             @jaraco @warsaw @FFY00
+Lib/test/test_importlib/metadata/   @jaraco @warsaw @FFY00
 
 # importlib.resources
-Doc/library/importlib.resources.abc.rst   @jaraco @warsaw
-Doc/library/importlib.resources.rst       @jaraco @warsaw
+Doc/library/importlib.resources.abc.rst   @jaraco @warsaw @FFY00
+Doc/library/importlib.resources.rst       @jaraco @warsaw @FFY00
 Lib/importlib/resources/                  @jaraco @warsaw @FFY00
 Lib/test/test_importlib/resources/        @jaraco @warsaw @FFY00
 
@@ -561,9 +573,9 @@ Lib/shutil.py                 @giampaolo
 Lib/test/test_shutil.py       @giampaolo
 
 # Site
-Lib/site.py                   @FFY00
-Lib/test/test_site.py         @FFY00
-Doc/library/site.rst          @FFY00
+Lib/site.py                   @FFY00 @warsaw
+Lib/test/test_site.py         @FFY00 @warsaw
+Doc/library/site.rst          @FFY00 @warsaw
 
 # string.templatelib
 Doc/library/string.templatelib.rst        @lysnikolaou @AA-Turner

.github/ISSUE_TEMPLATE/bug.yml

@@ -34,13 +34,13 @@ body:
       label: "CPython versions tested on:"
       multiple: true
       options:
-        - "3.9"
         - "3.10"
         - "3.11"
         - "3.12"
         - "3.13"
         - "3.14"
         - "3.15"
+        - "3.16"
         - "CPython main branch"
     validations:
       required: true

.github/ISSUE_TEMPLATE/crash.yml

@@ -27,13 +27,13 @@ body:
       label: "CPython versions tested on:"
       multiple: true
       options:
-        - "3.9"
         - "3.10"
         - "3.11"
         - "3.12"
         - "3.13"
         - "3.14"
         - "3.15"
+        - "3.16"
         - "CPython main branch"
     validations:
       required: true

.github/ISSUE_TEMPLATE/documentation.md

@@ -0,0 +1,16 @@
+name: Documentation
+description: Report a problem with the documentation
+labels: ["docs"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        > [!NOTE]
+        > Trivial changes (for example typos) don’t require an issue before opening a PR.
+  - type: textarea
+    id: description
+    attributes:
+      label: "Documentation"
+      description: "A clear and concise description of the issue. Include a link to the page."
+    validations:
+      required: true

.github/ISSUE_TEMPLATE/documentation.yml

@@ -1,8 +1,3 @@
-self-hosted-runner:
-  # Pending https://github.com/rhysd/actionlint/issues/533
-  # and https://github.com/rhysd/actionlint/issues/571
-  labels: ["windows-11-arm", "macos-15-intel"]
-
 config-variables: null
 
 paths:

.github/actionlint.yaml

@@ -3,7 +3,7 @@ updates:
   - package-ecosystem: "github-actions"
     directory: "/"
     schedule:
-      interval: "monthly"
+      interval: "quarterly"
     labels:
       - "skip issue"
       - "skip news"
@@ -12,6 +12,10 @@ updates:
         update-types:
           - "version-update:semver-minor"
           - "version-update:semver-patch"
+    groups:
+      actions:
+        patterns:
+          - "*"
     cooldown:
       # https://blog.yossarian.net/2025/11/21/We-should-all-be-using-dependency-cooldowns
       # Cooldowns protect against supply chain attacks by avoiding the
@@ -20,7 +24,7 @@ updates:
   - package-ecosystem: "pip"
     directory: "/Tools/"
     schedule:
-      interval: "monthly"
+      interval: "quarterly"
     labels:
       - "skip issue"
       - "skip news"

.github/dependabot.yml

@@ -12,6 +12,8 @@ on:
       # Only ever run once
       - opened
 
+permissions:
+  contents: read
 
 jobs:
   add-header:
@@ -20,7 +22,7 @@ jobs:
       issues: write
     timeout-minutes: 5
     steps:
-      - uses: actions/github-script@v8
+      - uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
         with:
           # language=JavaScript
           script: |