Import upstream 3.14.1 release

Summary:
Imported python/cpython `3.14.1` from upstream rev [`57e0d17`](https://www.github.com/python/cpython/commit/57e0d177c26d4a508ef46adae9cbae46fca39f70) (committed 2025-12-02 12:51:18+00:00).

# Commit Info

Base: (`3.14.0`) - [`ebf955d`](https://www.github.com/python/cpython/commit/ebf955df7a89ed0c7968f79faec1de49f61ed7cb) (commit date: 2025-10-07 09:34:30+00:00)
Imported: (`3.14.1`) - [`57e0d17`](https://www.github.com/python/cpython/commit/57e0d177c26d4a508ef46adae9cbae46fca39f70) (commit date: 2025-12-02 12:51:18+00:00)

# Files added

```
Apple/.ruff.toml
Doc/c-api/curses.rst
Doc/c-api/picklebuffer.rst
Doc/includes/optional-module.rst
InternalDocs/stack_protection.md
Lib/ensurepip/_bundled/pip-25.3-py3-none-any.whl
Lib/pathlib/_local.py
Lib/test/mp_preload_main.py
Lib/test/test_free_threading/test_capi.py
Lib/test/test_free_threading/test_cprofile.py
Lib/test/test_free_threading/test_csv.py
Lib/test/test_free_threading/test_dbm_gnu.py
Lib/test/test_free_threading/test_io.py
Lib/test/test_free_threading/test_mmap.py
Lib/test/test_free_threading/test_re.py
Lib/test/test_free_threading/test_resource.py
Lib/test/test_free_threading/test_uuid.py
Misc/NEWS.d/3.14.1.rst
Modules/clinic/mmapmodule.c.h
Tools/wasm/.ruff.toml
```

# Files removed

```
Lib/ensurepip/_bundled/pip-25.2-py3-none-any.whl
Tools/wasm/mypy.ini
```

Reviewed By: fried

Differential Revision: D88171463

fbshipit-source-id: 4ac5cf9f358e033fdb27c26afaad87e771a83301

Author: itamaro

.devcontainer/devcontainer.json

@@ -1,13 +1,10 @@
 {
-    "image": "ghcr.io/python/devcontainer:2024.09.25.11038928730",
+    "image": "ghcr.io/python/devcontainer:latest",
     "onCreateCommand": [
         // Install common tooling.
         "dnf",
         "install",
         "-y",
-        "which",
-        "zsh",
-        "fish",
         // For umask fix below.
         "/usr/bin/setfacl"
     ],

.gitattributes

@@ -83,6 +83,7 @@ Include/opcode_ids.h                                generated
 Include/token.h                                     generated
 Lib/_opcode_metadata.py                             generated
 Lib/keyword.py                                      generated
+Lib/idlelib/help.html                               generated
 Lib/test/certdata/*.pem                             generated
 Lib/test/certdata/*.0                               generated
 Lib/test/levenshtein_examples.json                  generated

.github/CODEOWNERS

@@ -16,6 +16,10 @@ configure*                    @erlend-aasland @corona10
 Makefile.pre.in               @erlend-aasland
 Modules/Setup*                @erlend-aasland
 
+# generate-build-details
+Tools/build/generate-build-details.py   @FFY00
+Lib/test/test_build_details.py          @FFY00
+
 # argparse
 **/*argparse*                 @savannahostrowski
 
@@ -27,6 +31,7 @@ Modules/Setup*                @erlend-aasland
 **/*genobject*                @markshannon
 **/*hamt*                     @1st1
 **/*jit*                      @brandtbucher @savannahostrowski
+Python/perf_jit_trampoline.c  # Exclude the owners of "**/*jit*", above.
 Objects/set*                  @rhettinger
 Objects/dict*                 @methane @markshannon
 Objects/typevarobject.c       @JelleZijlstra

.github/workflows/build.yml

@@ -156,20 +156,10 @@ jobs:
           python-version: '3.x'
       - name: Runner image version
         run: echo "IMAGE_OS_VERSION=${ImageOS}-${ImageVersion}" >> "$GITHUB_ENV"
-      - name: Restore config.cache
-        uses: actions/cache@v4
-        with:
-          path: config.cache
-          # Include env.pythonLocation in key to avoid changes in environment when setup-python updates Python
-          key: ${{ github.job }}-${{ env.IMAGE_OS_VERSION }}-${{ needs.build-context.outputs.config-hash }}-${{ env.pythonLocation }}
       - name: Install dependencies
         run: sudo ./.github/workflows/posix-deps-apt.sh
       - name: Add ccache to PATH
         run: echo "PATH=/usr/lib/ccache:$PATH" >> "$GITHUB_ENV"
-      - name: Configure ccache action
-        uses: hendrikmuhs/ccache-action@v1.2
-        with:
-          save: false
       - name: Configure CPython
         run: |
           # Build Python with the libpython dynamic library
@@ -249,28 +239,19 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        # Cirrus and macos-14 are M1, macos-15-intel is default GHA Intel.
-        # macOS 13 only runs tests against the GIL-enabled CPython.
-        # Cirrus used for upstream, macos-14 for forks.
+        # macos-14 is M1, macos-15-intel is Intel.
+        # macos-15-intel only runs tests against the GIL-enabled CPython.
         os:
-        - ghcr.io/cirruslabs/macos-runner:sonoma
         - macos-14
         - macos-15-intel
-        is-fork:  # only used for the exclusion trick
-        - ${{ github.repository_owner != 'python' }}
         free-threading:
         - false
         - true
         exclude:
-        - os: ghcr.io/cirruslabs/macos-runner:sonoma
-          is-fork: true
-        - os: macos-14
-          is-fork: false
         - os: macos-15-intel
           free-threading: true
     uses: ./.github/workflows/reusable-macos.yml
     with:
-      config_hash: ${{ needs.build-context.outputs.config-hash }}
       free-threading: ${{ matrix.free-threading }}
       os: ${{ matrix.os }}
 
@@ -302,7 +283,6 @@ jobs:
           bolt: true
     uses: ./.github/workflows/reusable-ubuntu.yml
     with:
-      config_hash: ${{ needs.build-context.outputs.config-hash }}
       bolt-optimizations: ${{ matrix.bolt }}
       free-threading: ${{ matrix.free-threading }}
       os: ${{ matrix.os }}
@@ -333,11 +313,6 @@ jobs:
         persist-credentials: false
     - name: Runner image version
       run: echo "IMAGE_OS_VERSION=${ImageOS}-${ImageVersion}" >> "$GITHUB_ENV"
-    - name: Restore config.cache
-      uses: actions/cache@v4
-      with:
-        path: config.cache
-        key: ${{ github.job }}-${{ env.IMAGE_OS_VERSION }}-${{ needs.build-context.outputs.config-hash }}
     - name: Register gcc problem matcher
       run: echo "::add-matcher::.github/problem-matchers/gcc.json"
     - name: Install dependencies
@@ -359,10 +334,6 @@ jobs:
     - name: Add ccache to PATH
       run: |
         echo "PATH=/usr/lib/ccache:$PATH" >> "$GITHUB_ENV"
-    - name: Configure ccache action
-      uses: hendrikmuhs/ccache-action@v1.2
-      with:
-        save: false
     - name: Configure CPython
       run: ./configure CFLAGS="-fdiagnostics-format=json" --config-cache --enable-slower-safety --with-pydebug --with-openssl="$OPENSSL_DIR"
     - name: Build CPython
@@ -381,9 +352,8 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          # Use the same runs-on configuration as build-macos and build-ubuntu.
           - arch: aarch64
-            runs-on: ${{ github.repository_owner == 'python' && 'ghcr.io/cirruslabs/macos-runner:sonoma' || 'macos-14' }}
+            runs-on: macos-14
           - arch: x86_64
             runs-on: ubuntu-24.04
 
@@ -395,13 +365,34 @@ jobs:
       - name: Build and test
         run: ./Android/android.py ci --fast-ci ${{ matrix.arch }}-linux-android
 
+  build-ios:
+    name: iOS
+    needs: build-context
+    if: needs.build-context.outputs.run-tests == 'true'
+    timeout-minutes: 60
+    runs-on: macos-15
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          persist-credentials: false
+
+      # GitHub recommends explicitly selecting the desired Xcode version:
+      # https://github.com/actions/runner-images/issues/12541#issuecomment-3083850140
+      # This became a necessity as a result of
+      # https://github.com/actions/runner-images/issues/12541 and
+      # https://github.com/actions/runner-images/issues/12751.
+      - name: Select Xcode version
+        run: |
+          sudo xcode-select --switch /Applications/Xcode_16.4.app
+
+      - name: Build and test
+        run: python3 Apple ci iOS --fast-ci --simulator 'iPhone 16e,OS=18.5'
+
   build-wasi:
     name: 'WASI'
     needs: build-context
     if: needs.build-context.outputs.run-tests == 'true'
     uses: ./.github/workflows/reusable-wasi.yml
-    with:
-      config_hash: ${{ needs.build-context.outputs.config-hash }}
 
   test-hypothesis:
     name: "Hypothesis tests on Ubuntu"
@@ -437,10 +428,6 @@ jobs:
     - name: Add ccache to PATH
       run: |
         echo "PATH=/usr/lib/ccache:$PATH" >> "$GITHUB_ENV"
-    - name: Configure ccache action
-      uses: hendrikmuhs/ccache-action@v1.2
-      with:
-        save: false
     - name: Setup directory envs for out-of-tree builds
       run: |
         echo "CPYTHON_RO_SRCDIR=$(realpath -m "${GITHUB_WORKSPACE}"/../cpython-ro-srcdir)" >> "$GITHUB_ENV"
@@ -451,11 +438,6 @@ jobs:
       run: sudo mount --bind -o ro "$GITHUB_WORKSPACE" "$CPYTHON_RO_SRCDIR"
     - name: Runner image version
       run: echo "IMAGE_OS_VERSION=${ImageOS}-${ImageVersion}" >> "$GITHUB_ENV"
-    - name: Restore config.cache
-      uses: actions/cache@v4
-      with:
-        path: ${{ env.CPYTHON_BUILDDIR }}/config.cache
-        key: ${{ github.job }}-${{ env.IMAGE_OS_VERSION }}-${{ needs.build-context.outputs.config-hash }}
     - name: Configure CPython out-of-tree
       working-directory: ${{ env.CPYTHON_BUILDDIR }}
       run: |
@@ -539,11 +521,6 @@ jobs:
         persist-credentials: false
     - name: Runner image version
       run: echo "IMAGE_OS_VERSION=${ImageOS}-${ImageVersion}" >> "$GITHUB_ENV"
-    - name: Restore config.cache
-      uses: actions/cache@v4
-      with:
-        path: config.cache
-        key: ${{ github.job }}-${{ env.IMAGE_OS_VERSION }}-${{ needs.build-context.outputs.config-hash }}
     - name: Register gcc problem matcher
       run: echo "::add-matcher::.github/problem-matchers/gcc.json"
     - name: Install dependencies
@@ -569,11 +546,6 @@ jobs:
     - name: Add ccache to PATH
       run: |
         echo "PATH=/usr/lib/ccache:$PATH" >> "$GITHUB_ENV"
-    - name: Configure ccache action
-      uses: hendrikmuhs/ccache-action@v1.2
-      with:
-        save: ${{ github.event_name == 'push' }}
-        max-size: "200M"
     - name: Configure CPython
       run: ./configure --config-cache --with-address-sanitizer --without-pymalloc
     - name: Build CPython
@@ -605,7 +577,6 @@ jobs:
     uses: ./.github/workflows/reusable-san.yml
     with:
       sanitizer: ${{ matrix.sanitizer }}
-      config_hash: ${{ needs.build-context.outputs.config-hash }}
       free-threading: ${{ matrix.free-threading }}
 
   cross-build-linux:
@@ -620,11 +591,6 @@ jobs:
           persist-credentials: false
       - name: Runner image version
         run: echo "IMAGE_OS_VERSION=${ImageOS}-${ImageVersion}" >> "$GITHUB_ENV"
-      - name: Restore config.cache
-        uses: actions/cache@v4
-        with:
-          path: config.cache
-          key: ${{ github.job }}-${{ env.IMAGE_OS_VERSION }}-${{ needs.build-context.outputs.config-hash }}
       - name: Register gcc problem matcher
         run: echo "::add-matcher::.github/problem-matchers/gcc.json"
       - name: Set build dir
@@ -703,6 +669,7 @@ jobs:
     - build-ubuntu
     - build-ubuntu-ssltests
     - build-android
+    - build-ios
     - build-wasi
     - test-hypothesis
     - build-asan
@@ -737,6 +704,7 @@ jobs:
             build-ubuntu,
             build-ubuntu-ssltests,
             build-android,
+            build-ios,
             build-wasi,
             test-hypothesis,
             build-asan,

.github/workflows/jit.yml

@@ -152,3 +152,26 @@ jobs:
   #     - name: Run tests
   #       run: |
   #         ./python -m test --multiprocess 0 --timeout 4500 --verbose2 --verbose3
+  tail-call-jit:
+    name: JIT with tail calling interpreter
+    needs: interpreter
+    runs-on: ubuntu-24.04
+    timeout-minutes: 90
+    strategy:
+      fail-fast: false
+      matrix:
+        llvm:
+          - 19
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          persist-credentials: false
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+      - name: Build with JIT and tailcall
+        run: |
+          sudo bash -c "$(wget -O - https://apt.llvm.org/llvm.sh)" ./llvm.sh ${{ matrix.llvm }}
+          export PATH="$(llvm-config-${{ matrix.llvm }} --bindir):$PATH"
+          CC=clang-${{ matrix.llvm }} ./configure --enable-experimental-jit --with-tail-call-interp --with-pydebug
+          make all --jobs 4

.github/workflows/mypy.yml

@@ -29,7 +29,6 @@ on:
       - "Tools/jit/**"
       - "Tools/peg_generator/**"
       - "Tools/requirements-dev.txt"
-      - "Tools/wasm/**"
   workflow_dispatch:
 
 permissions:
@@ -61,7 +60,6 @@ jobs:
           "Tools/clinic",
           "Tools/jit",
           "Tools/peg_generator",
-          "Tools/wasm",
         ]
     steps:
       - uses: actions/checkout@v4

.github/workflows/reusable-context.yml

@@ -17,9 +17,6 @@ on:  # yamllint disable-line rule:truthy
       #        || 'falsy-branch'
       #   }}
       #
-      config-hash:
-        description: Config hash value for use in cache keys
-        value: ${{ jobs.compute-changes.outputs.config-hash }}  # str
       run-docs:
         description: Whether to build the docs
         value: ${{ jobs.compute-changes.outputs.run-docs }}  # bool
@@ -42,7 +39,6 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 10
     outputs:
-      config-hash: ${{ steps.config-hash.outputs.hash }}
       run-ci-fuzz: ${{ steps.changes.outputs.run-ci-fuzz }}
       run-docs: ${{ steps.changes.outputs.run-docs }}
       run-tests: ${{ steps.changes.outputs.run-tests }}
@@ -100,8 +96,3 @@ jobs:
         GITHUB_EVENT_NAME: ${{ github.event_name }}
         CCF_TARGET_REF: ${{ github.base_ref || github.event.repository.default_branch }}
         CCF_HEAD_REF: ${{ github.event.pull_request.head.sha || github.sha }}
-
-    - name: Compute hash for config cache key
-      id: config-hash
-      run: |
-        echo "hash=${{ hashFiles('configure', 'configure.ac', '.github/workflows/build.yml') }}" >> "$GITHUB_OUTPUT"

.github/workflows/reusable-macos.yml

@@ -3,9 +3,6 @@ name: Reusable macOS
 on:
   workflow_call:
     inputs:
-      config_hash:
-        required: true
-        type: string
       free-threading:
         required: false
         type: boolean
@@ -36,11 +33,6 @@ jobs:
         persist-credentials: false
     - name: Runner image version
       run: echo "IMAGE_OS_VERSION=${ImageOS}-${ImageVersion}" >> "$GITHUB_ENV"
-    - name: Restore config.cache
-      uses: actions/cache@v4
-      with:
-        path: config.cache
-        key: ${{ github.job }}-${{ env.IMAGE_OS_VERSION }}-${{ inputs.config_hash }}
     - name: Install Homebrew dependencies
       run: |
         brew install pkg-config openssl@3.0 xz gdbm tcl-tk@8 make

.github/workflows/reusable-san.yml

@@ -6,9 +6,6 @@ on:
       sanitizer:
         required: true
         type: string
-      config_hash:
-        required: true
-        type: string
       free-threading:
         description: Whether to use free-threaded mode
         required: false
@@ -34,11 +31,6 @@ jobs:
         persist-credentials: false
     - name: Runner image version
       run: echo "IMAGE_OS_VERSION=${ImageOS}-${ImageVersion}" >> "$GITHUB_ENV"
-    - name: Restore config.cache
-      uses: actions/cache@v4
-      with:
-        path: config.cache
-        key: ${{ github.job }}-${{ env.IMAGE_OS_VERSION }}-${{ inputs.sanitizer }}-${{ inputs.config_hash }}
     - name: Install dependencies
       run: |
         sudo ./.github/workflows/posix-deps-apt.sh
@@ -77,11 +69,6 @@ jobs:
     - name: Add ccache to PATH
       run: |
         echo "PATH=/usr/lib/ccache:$PATH" >> "$GITHUB_ENV"
-    - name: Configure ccache action
-      uses: hendrikmuhs/ccache-action@v1.2
-      with:
-        save: ${{ github.event_name == 'push' }}
-        max-size: "200M"
     - name: Configure CPython
       run: >-
         ./configure