Release v0.5.0

2026-06-02 19:39:49 +09:00 · 2026-03-31 21:06:00 +09:00
797 changed files with 35170 additions and 124088 deletions
--- a/.cspell.dict/cpython.txt
+++ b/.cspell.dict/cpython.txt
@@ -4,8 +4,6 @@ argdefs
 argtypes
 asdl
 asname
-atopen
-atext
 attro
 augassign
 badcert
@@ -32,12 +30,9 @@ cellvar
 cellvars
 ceval
 cfield
-cfws
-CFWS
 CLASSDEREF
 classdict
 cmpop
-CNOTAB
 codedepth
 CODEUNIT
 CONIN
@@ -52,16 +47,13 @@ datastack
 defaultdict
 denom
 deopt
-deopts
 dictbytype
 DICTFLAG
 dictoffset
 distpoint
 dynload
 elts
-eooh
 eofs
-EOOH
 evalloop
 excepthandler
 exceptiontable
@@ -70,7 +62,6 @@ fastlocals
 fblock
 fblocks
 fdescr
-fdst
 ffi_argtypes
 fielddesc
 fieldlist
@@ -84,7 +75,6 @@ freelist
 freevar
 freevars
 fromlist
-fsrc
 getdict
 getfunc
 getiter
@@ -99,39 +89,28 @@ HASUNION
 heaptype
 hexdigit
 HIGHRES
-ialloc
 IFUNC
 IMMUTABLETYPE
 INCREF
 inlinedepth
 inplace
-inpos
-ioffset
-isbytecode
-ishidden
 ismine
 ISPOINTER
-isoctal
 iteminfo
 Itertool
-iused
 keeped
 kwnames
 kwonlyarg
 kwonlyargs
-kwonlydefaults
 lasti
 libffi
 linearise
-lineful
 lineiterator
 linetable
-LNOTAB
 loadfast
 localsplus
 localspluskinds
 Lshift
-lslpp
 lsprof
 MAXBLOCKS
 maxdepth
@@ -141,23 +120,16 @@ mult
 multibytecodec
 nameobj
 nameop
-nargsf
-nblocks
 ncells
-ncellsused
-ncellvars
 nconsts
 newargs
 newfree
 NEWLOCALS
 newsemlockobject
-nextop
 nfrees
 nkwargs
 nkwelts
 nlocalsplus
-nointerrupt
-noffsets
 Nondescriptor
 noninteger
 nops
@@ -165,7 +137,6 @@ noraise
 nseen
 NSIGNALS
 numer
-nvars
 opname
 opnames
 orelse
@@ -178,22 +149,18 @@ patma
 peepholer
 phcount
 platstdlib
-ploc
 posonlyarg
 posonlyargs
 prec
-preds
 preinitialized
 pybuilddir
 pycore
 pyinner
 pydecimal
-pyerrors
 Pyfunc
 pylifecycle
 pymain
 pyrepl
-pystate
 PYTHONTRACEMALLOC
 PYTHONUTF8
 pythonw
@@ -201,7 +168,6 @@ PYTHREAD_NAME
 releasebuffer
 repr
 resinfo
-retarget
 Rshift
 SA_ONSTACK
 saveall
@@ -213,7 +179,6 @@ SETREF
 setresult
 setslice
 settraceallthreads
-sget
 SLOTDEFINED
 SMALLBUF
 SOABI
@@ -224,16 +189,13 @@ staticbase
 stginfo
 storefast
 stringlib
-stringized
 structseq
 subkwargs
 subparams
 subscr
 sval
 swappedbytes
-swaptimize
 sysdict
-tbstderr
 templatelib
 testconsole
 threadstate
@@ -252,7 +214,6 @@ uncollectable
 Unhandle
 unparse
 unparser
-untargeted
 untracking
 VARKEYWORDS
 varkwarg
--- a/.cspell.dict/python-more.txt
+++ b/.cspell.dict/python-more.txt
@@ -67,7 +67,6 @@ fillchar
 fillvalue
 finallyhandler
 firstiter
-fobj
 firstlineno
 fnctl
 frombytes
@@ -112,14 +111,12 @@ idfunc
 idiv
 idxs
 impls
-infd
 indexgroup
 infj
 inittab
 Inittab
 instancecheck
 instanceof
-instrs
 interpchannels
 interpqueues
 irepeat
@@ -178,7 +175,6 @@ Nonprintable
 onceregistry
 origname
 ospath
-outfd
 pendingcr
 phello
 platlibdir
@@ -189,12 +185,10 @@ posonlyargcount
 prepending
 profilefunc
 pycache
-pycapsule
 pycodecs
 pycs
 pydatetime
 pyexpat
-PYGILSTATE
 pyio
 pymain
 PYTHONAPI
--- a/.cspell.json
+++ b/.cspell.json
@@ -49,25 +49,20 @@
  "ignorePaths": [
    "**/__pycache__/**",
    "target/**",
-    "Lib/**",
-    "crates/host_env/**"
+    "Lib/**"
  ],
  // words - list of words to be always considered correct
  // (compound words like pyarg, baseclass, microbenchmark are handled by allowCompoundWords)
  "words": [
    "aiterable",
    "alnum",
-    "csock",
    "coro",
    "dedentations",
    "dedents",
    "deduped",
-    "deoptimized",
    "deoptimize",
    "emscripten",
    "excs",
-    "fnfe",
-    "ifexp",
    "interps",
    "jitted",
    "jitting",
@@ -77,13 +72,8 @@
    "oparg",
    "opargs",
    "pyc",
-    "reborrow",
-    "reraises",
-    "reraising",
    "significand",
    "summands",
-    "TESTFN",
-    "TZPATH",
    "unraisable",
    "wasi",
    "weaked",
--- a/.gitattributes
+++ b/.gitattributes
@@ -58,14 +58,13 @@ Lib/venv/scripts/posix/* text eol=lf
 #
 [attr]generated linguist-generated=true diff=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
-Lib/test/test_stable_abi_ctypes.py                      generated
-Lib/token.py                                            generated
-crates/compiler-core/src/bytecode/opcode_metadata.rs    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
+Lib/test/test_stable_abi_ctypes.py                  generated
+Lib/token.py                                        generated

-.github/workflows/*.lock.yml linguist-generated=true merge=ours
+.github/workflows/*.lock.yml linguist-generated=true merge=ours
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -2,9 +2,7 @@
 version: 2
 updates:
  - package-ecosystem: cargo
-    directories:
-      - "/"
-      - "crates/*"
+    directory: /
    schedule:
      interval: weekly
    cooldown:
@@ -21,7 +19,6 @@ updates:
          - "digest"
          - "md-5"
          - "sha-1"
-          - "sha1"
          - "sha2"
          - "sha3"
          - "blake2"
@@ -123,11 +120,6 @@ updates:
      toml:
        patterns:
          - "toml*"
-      unix:
-        patterns:
-          - "mac_address"
-          - "nix"
-          - "rustyline"
      wasm-bindgen:
        patterns:
          - "wasm-bindgen*"
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -19,63 +19,21 @@ concurrency:
  cancel-in-progress: true

 env:
-  CARGO_ARGS: --no-default-features --features stdlib,importlib,stdio,encodings,sqlite,ssl-rustls-aws-lc,host_env
+  CARGO_ARGS: --no-default-features --features stdlib,importlib,stdio,encodings,sqlite,ssl-rustls,host_env
  CARGO_ARGS_NO_SSL: --no-default-features --features stdlib,importlib,stdio,encodings,sqlite,host_env
  # Crates excluded from workspace builds:
  # - rustpython_wasm: requires wasm target
  # - rustpython-compiler-source: deprecated
  # - rustpython-venvlauncher: Windows-only
  WORKSPACE_EXCLUDES: --exclude rustpython_wasm --exclude rustpython-compiler-source --exclude rustpython-venvlauncher
+  # Python version targeted by the CI.
+  PYTHON_VERSION: "3.14.3"
  X86_64_PC_WINDOWS_MSVC_OPENSSL_LIB_DIR: C:\Program Files\OpenSSL\lib\VC\x64\MD
  X86_64_PC_WINDOWS_MSVC_OPENSSL_INCLUDE_DIR: C:\Program Files\OpenSSL\include
  CARGO_INCREMENTAL: 0
-  CARGO_PROFILE_TEST_DEBUG: 0
-  CARGO_PROFILE_DEV_DEBUG: 0
-  CARGO_PROFILE_RELEASE_DEBUG: 0
  CARGO_TERM_COLOR: always
-  FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: true # TODO: Remove on 2026/06/02
-  CI: true

 jobs:
-  determine_changes:
-    name: Determine changes
-    runs-on: ubuntu-slim
-    outputs:
-      # Flag that is raised when any rust code is changed.
-      rust_code: ${{ steps.check_rust_code.outputs.changed }}
-    steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-        with:
-          fetch-depth: 0
-          persist-credentials: false
-
-      - name: Determine merge base
-        id: merge_base
-        run: |
-          sha=$(git merge-base HEAD "origin/${BASE_REF}")
-          echo "sha=${sha}" >> "$GITHUB_OUTPUT"
-        env:
-          BASE_REF: ${{ github.event.pull_request.base.ref || 'main' }}
-
-      - name: Check if there was any code related change
-        id: check_rust_code
-        run: |
-          if git diff --quiet "${MERGE_BASE}...HEAD" -- \
-            ':Cargo.toml' \
-            ':Cargo.lock' \
-            ':rust-toolchain.toml' \
-            ':.cargo/config.toml' \
-            ':crates/**' \
-            ':src/**' \
-            ':.github/workflows/ci.yaml' \
-          ; then
-              echo "changed=false" >> "$GITHUB_OUTPUT"
-          else
-              echo "changed=true" >> "$GITHUB_OUTPUT"
-          fi
-        env:
-          MERGE_BASE: ${{ steps.merge_base.outputs.sha }}
-
  rust_tests:
    if: ${{ !contains(github.event.pull_request.labels.*.name, 'skip:ci') }}
    env:
@@ -92,36 +50,29 @@ jobs:
        with:
          persist-credentials: false

-      - uses: dtolnay/rust-toolchain@stable
-
-      - name: Restore cache
-        uses: actions/cache/restore@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+      - uses: dtolnay/rust-toolchain@3c5f7ea28cd621ae0bf5283f0e981fb97b8a7af9
        with:
-          path: |
-            ~/.cargo/bin/
-            ~/.cargo/registry/index/
-            ~/.cargo/registry/cache/
-            ~/.cargo/git/db/
-            target/
-          key: ${{ runner.os }}-${{ hashFiles('**/Cargo.toml') }}-
-          restore-keys: |
-            ${{ runner.os }}-stable--${{ hashFiles('**/Cargo.toml') }}-
-            ${{ runner.os }}-stable--
-        # Windows runners randomly crashes, https://github.com/actions/cache/issues/1754
-        continue-on-error: true
+          components: clippy
+          toolchain: stable
+
+      - uses: Swatinem/rust-cache@c19371144df3bb44fab255c43d04cbc2ab54d1c4 # v2.9.1
+        with:
+          save-if: ${{ github.ref == 'refs/heads/main' }}

      - name: Install macOS dependencies
        uses: ./.github/actions/install-macos-deps

-      - name: run rust tests
-        run: cargo test --workspace --exclude rustpython-capi ${{ env.WORKSPACE_EXCLUDES }} --features threading ${{ env.CARGO_ARGS }}
-        env:
-          INSTA_WORKSPACE_ROOT: ${{ github.workspace }}
+      - name: run clippy
+        run: cargo clippy ${{ env.CARGO_ARGS }} --workspace --all-targets ${{ env.WORKSPACE_EXCLUDES }} -- -Dwarnings

-      - name: run c-api tests
-        working-directory: crates/capi
-        run: cargo test
-        if: runner.os != 'Windows'  # Requires pyo3 0.29+ on Windows
+      - name: run rust tests
+        run: cargo test --workspace ${{ env.WORKSPACE_EXCLUDES }} --verbose --features threading ${{ env.CARGO_ARGS }}
+
+      - name: check compilation without threading
+        run: cargo check ${{ env.CARGO_ARGS }}
+
+      - run: cargo doc --locked
+        if: runner.os == 'Linux'

      - name: check compilation without host_env (sandbox mode)
        run: |
@@ -140,10 +91,6 @@ jobs:
        run: cargo build --no-default-features --features ssl-openssl
        if: runner.os == 'Linux'

-      - name: Test vendored OpenSSL build
-        run: cargo build --no-default-features --features ssl-vendor
-        if: runner.os == 'Linux'
-
      # - name: Install tk-dev for tkinter build
      #   run: sudo apt-get update && sudo apt-get install -y tk-dev
      #   if: runner.os == 'Linux'
@@ -165,18 +112,12 @@ jobs:
        if: runner.os == 'Linux'

  cargo_check:
+    if: ${{ !contains(github.event.pull_request.labels.*.name, 'skip:ci') }}
    name: cargo check
    runs-on: ${{ matrix.os }}
-    needs:
-      - determine_changes
-    if: |
-      (
-        !contains(github.event.pull_request.labels.*.name, 'skip:ci') &&
-        needs.determine_changes.outputs.rust_code == 'true'
-      ) || github.ref == 'refs/heads/main'
    strategy:
      matrix:
-        include:
+        include: 
        - os: ubuntu-latest
          target: aarch64-linux-android
        - os: ubuntu-latest
@@ -187,13 +128,10 @@ jobs:
          target: i686-unknown-linux-musl
          dependencies:
            musl-tools: true
-          skip_ssl: true
        - os: ubuntu-latest
          target: wasm32-wasip2
-          skip_ssl: true
        - os: ubuntu-latest
          target: x86_64-unknown-freebsd
-          skip_ssl: true
        - os: ubuntu-latest
          target: aarch64-unknown-linux-gnu
          dependencies:
@@ -218,7 +156,8 @@ jobs:
          gcc-aarch64-linux-gnu: ${{ matrix.dependencies.gcc-aarch64-linux-gnu || false }}

      - name: Restore cache
-        uses: actions/cache/restore@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        uses: actions/cache/restore@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5.0.4
+        if: ${{ github.ref != 'refs/heads/main' }} # Never restore on main
        with:
          path: |
            ~/.cargo/bin/
@@ -227,39 +166,20 @@ jobs:
            ~/.cargo/git/db/
            target/
          # key won't match, will rely on restore-keys
-          key: ${{ runner.os }}-${{ matrix.target }}
+          key: cargo-check-${{ runner.os }}-${{ matrix.target }}
          restore-keys: |
-            ${{ runner.os }}-stable-${{ matrix.target }}-${{ hashFiles('**/Cargo.toml') }}-
-            ${{ runner.os }}-stable-${{ matrix.target }}-
-            ${{ runner.os }}-stable--${{ hashFiles('**/Cargo.toml') }}-
-            ${{ runner.os }}-stable--
+            cargo-check-${{ runner.os }}-${{ matrix.target }}-

-      - uses: dtolnay/rust-toolchain@stable
-        with:
-          target: ${{ matrix.target }}
+      - run: rustup toolchain install stable --target "${{ matrix.target }}"

      - name: Setup Android NDK
        if: ${{ matrix.target == 'aarch64-linux-android' }}
        id: setup-ndk
-        uses: nttld/setup-ndk@ed92fe6cadad69be94a966a7ee3271275e62f779 # v1.6.0
+        uses: nttld/setup-ndk@v1
        with:
          ndk-version: r27
          add-to-path: true

-      - name: Append env conf to cargo
-        if: ${{ matrix.target == 'aarch64-linux-android' }}
-        env:
-          NDK_PATH: ${{ steps.setup-ndk.outputs.ndk-path }}
-        run: |
-          {
-            echo "[env]"
-            echo "CC_aarch64_linux_android = \"${NDK_PATH}/toolchains/llvm/prebuilt/linux-x86_64/bin/aarch64-linux-android24-clang\""
-
-            echo "AR_aarch64_linux_android = \"${NDK_PATH}/toolchains/llvm/prebuilt/linux-x86_64/bin/llvm-ar\""
-
-          echo "CARGO_TARGET_AARCH64_LINUX_ANDROID_LINKER = \"${NDK_PATH}/toolchains/llvm/prebuilt/linux-x86_64/bin/aarch64-linux-android24-clang\""
-          } >> .cargo/config.toml
-
      # - name: Prepare repository for redox compilation
      #   run: bash scripts/redox/uncomment-cargo.sh
      # - name: Check compilation for Redox
@@ -268,12 +188,24 @@ jobs:
      #     command: check
      #     args: --ignore-rust-version

-      - name: Check compilation with threading
-        run: cargo check --target "${{ matrix.target }}" ${{ env.CARGO_ARGS_NO_SSL }} --features threading
+      - name: Check compilation
+        run: cargo check --target "${{ matrix.target }}" ${{ env.CARGO_ARGS_NO_SSL }}
+        env:
+          CC_aarch64_linux_android: ${{ steps.setup-ndk.outputs.ndk-path }}/toolchains/llvm/prebuilt/linux-x86_64/bin/aarch64-linux-android24-clang
+          AR_aarch64_linux_android: ${{ steps.setup-ndk.outputs.ndk-path }}/toolchains/llvm/prebuilt/linux-x86_64/bin/llvm-ar
+          CARGO_TARGET_AARCH64_LINUX_ANDROID_LINKER: ${{ steps.setup-ndk.outputs.ndk-path }}/toolchains/llvm/prebuilt/linux-x86_64/bin/aarch64-linux-android24-clang

-      - name: Check compilation with ssl
-        if: ${{ !matrix.skip_ssl }}
-        run: cargo check --target "${{ matrix.target }}" ${{ env.CARGO_ARGS }}
+      - name: Save cache
+        if: ${{ github.ref == 'refs/heads/main' }} # only save on main
+        uses: actions/cache/save@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5.0.4
+        with:
+          path: |
+            ~/.cargo/bin/
+            ~/.cargo/registry/index/
+            ~/.cargo/registry/cache/
+            ~/.cargo/git/db/
+            target/
+          key: cargo-check-${{ runner.os }}-${{ matrix.target }}-${{ hashFiles('**/Cargo.toml') }}-${{ hashFiles('Cargo.lock') }}-${{ github.sha }}

  snippets_cpython:
    if: ${{ !contains(github.event.pull_request.labels.*.name, 'skip:ci') }}
@@ -295,21 +227,18 @@ jobs:
        - os: macos-latest
          extra_test_args:
            - '-u all'
-          env_polluting_tests:
-            - test_set
+          env_polluting_tests: []
          skips: []
          timeout: 50
        - os: ubuntu-latest
          extra_test_args:
            - '-u all'
-          env_polluting_tests:
-            - test_set
+          env_polluting_tests: []
          skips: []
          timeout: 60
        - os: windows-2025
          extra_test_args: [] # TODO: Enable '-u all'
-          env_polluting_tests:
-            - test_set
+          env_polluting_tests: []
          skips:
            - test_rlcompleter
            - test_pathlib # panic by surrogate chars
@@ -322,25 +251,17 @@ jobs:
        with:
          persist-credentials: false

-      - uses: dtolnay/rust-toolchain@stable
-
-      - name: Restore cache
-        uses: actions/cache/restore@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+      - uses: dtolnay/rust-toolchain@3c5f7ea28cd621ae0bf5283f0e981fb97b8a7af9
        with:
-          path: |
-            ~/.cargo/bin/
-            ~/.cargo/registry/index/
-            ~/.cargo/registry/cache/
-            ~/.cargo/git/db/
-            target/
-          key: ${{ runner.os }}-${{ hashFiles('**/Cargo.toml') }}-
-          restore-keys: |
-            ${{ runner.os }}-stable--${{ hashFiles('**/Cargo.toml') }}-
-            ${{ runner.os }}-stable--
-        # Windows runners randomly crashes, https://github.com/actions/cache/issues/1754
-        continue-on-error: true
+          toolchain: stable
+
+      - uses: Swatinem/rust-cache@c19371144df3bb44fab255c43d04cbc2ab54d1c4 # v2.9.1
+        with:
+          save-if: ${{ github.ref == 'refs/heads/main' }}

      - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}

      - name: Install macOS dependencies
        uses: ./.github/actions/install-macos-deps
@@ -370,24 +291,8 @@ jobs:

      - name: Run flaky MP CPython tests
        run: |
-          for attempt in $(seq 1 5); do
-            echo "::group::Attempt ${attempt}"
-
-            set +e
-            target/release/rustpython -m test -j 1 ${{ join(matrix.extra_test_args, ' ') }} --slowest --fail-env-changed --timeout 600 -v ${{ env.FLAKY_MP_TESTS }}
-            status=$?
-            set -e
-
-            echo "::endgroup::"
-
-            if [ $status -eq 0 ]; then
-              exit 0
-            fi
-          done
-
-          exit 1
+          target/release/rustpython -m test -j 1 ${{ join(matrix.extra_test_args, ' ') }} --slowest --fail-env-changed --timeout 600 -v ${{ env.FLAKY_MP_TESTS }}
        timeout-minutes: ${{ matrix.timeout }}
-        shell: bash
        env:
          RUSTPYTHON_SKIP_ENV_POLLUTERS: true

@@ -444,82 +349,12 @@ jobs:
        shell: bash
        run: python -I scripts/whats_left.py ${{ env.CARGO_ARGS }} --features jit

-  clippy:
-    name: clippy
-    runs-on: ${{ matrix.os }}
-    needs:
-      - determine_changes
-    permissions:
-      contents: read
-    if: |
-      needs.determine_changes.outputs.rust_code == 'true' ||
-      github.ref == 'refs/heads/main'
-    strategy:
-      fail-fast: false
-      matrix:
-        os:
-          - macos-latest
-          - ubuntu-latest
-          - windows-latest
-    steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-        with:
-          persist-credentials: false
-
-      - uses: dtolnay/rust-toolchain@stable
-        with:
-          components: clippy
-
-      - name: Restore cache
-        uses: actions/cache/restore@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
-        with:
-          path: |
-            ~/.cargo/bin/
-            ~/.cargo/registry/index/
-            ~/.cargo/registry/cache/
-            ~/.cargo/git/db/
-            target/
-          key: ${{ runner.os }}-${{ hashFiles('**/Cargo.toml') }}-
-          restore-keys: |
-            ${{ runner.os }}-stable--${{ hashFiles('**/Cargo.toml') }}-
-            ${{ runner.os }}-stable--
-        # Windows runners randomly crashes, https://github.com/actions/cache/issues/1754
-        continue-on-error: true
-
-      - name: Clippy
-        run: cargo clippy --keep-going ${{ env.CARGO_ARGS }} --workspace --all-targets ${{ env.WORKSPACE_EXCLUDES }} -- -Dwarnings
-
-  cargo_shear:
-    name: cargo shear
-    runs-on: ubuntu-latest
-    needs:
-      - determine_changes
-    permissions:
-      contents: read
-    if: |
-      needs.determine_changes.outputs.rust_code == 'true' ||
-      github.ref == 'refs/heads/main'
-    steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-        with:
-          persist-credentials: false
-
-      - uses: dtolnay/rust-toolchain@stable
-
-      - uses: cargo-bins/cargo-binstall@aaa84a43aec4955a42c5ffc65d258961e39f276e # v1.19.1
-
-      - name: cargo shear
-        run: |
-          cargo binstall --no-confirm cargo-shear
-          cargo shear
-
  lint:
    name: Lint
    runs-on: ubuntu-latest
    permissions:
      contents: read
      checks: write
-      issues: write
      pull-requests: write
      security-events: write # for zizmor
    steps:
@@ -528,76 +363,55 @@ jobs:
          persist-credentials: false

      - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
-
-      - uses: dtolnay/rust-toolchain@stable
        with:
+          python-version: ${{ env.PYTHON_VERSION }}
+
+      - uses: dtolnay/rust-toolchain@3c5f7ea28cd621ae0bf5283f0e981fb97b8a7af9
+        with:
+          toolchain: stable
          components: rustfmt

+      - uses: cargo-bins/cargo-binstall@113a77a4ce971c41332f2129c3d995df993cf746 # v1.17.8
+
+      - name: cargo shear
+        run: |
+          cargo binstall --no-confirm cargo-shear
+          cargo shear
+
      - name: actionlint
-        uses: reviewdog/action-actionlint@6fb7acc99f4a1008869fa8a0f09cfca740837d9d # v1.72.0
+        uses: reviewdog/action-actionlint@0d952c597ef8459f634d7145b0b044a9699e5e43 # v1.71.0

      - name: zizmor
-        uses: zizmorcore/zizmor-action@5f14fd08f7cf1cb1609c1e344975f152c7ee938d # v0.5.6
+        uses: zizmorcore/zizmor-action@71321a20a9ded102f6e9ce5718a2fcec2c4f70d8 # v0.5.2

      - name: restore prek cache
-        uses: actions/cache/restore@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        if: ${{ github.ref != 'refs/heads/main' }} # never restore on main
+        uses: actions/cache/restore@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5.0.4
        with:
          key: prek-${{ hashFiles('.pre-commit-config.yaml') }}
          path: ~/.cache/prek

-      # TODO: Remove on 2026/06/02 when node24 is the default
-      - uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
-        with:
-          package-manager-cache: false
-          node-version: "24"
-
-      - name: install prek
+      - name: prek
        id: prek
-        uses: j178/prek-action@bdca6f102f98e2b4c7029491a53dfd366469e33d # v2.0.4
+        uses: j178/prek-action@53276d8b0d10f8b6672aa85b4588c6921d0370cc # v2.0.1
        with:
          cache: false
          show-verbose-logs: false
-          install-only: true
-
-      - name: prek run
-        run: prek run --show-diff-on-failure --color=always --all-files
-
-      - name: Get target CPython version
-        id: cpython-version
-        run: |
-          version=$(cat .python-version)
-          echo "version=${version}" >> "$GITHUB_OUTPUT"
-
-      - name: Clone CPython
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-        with:
-          repository: python/cpython
-          path: cpython
-          ref: "v${{ steps.cpython-version.outputs.version }}"
-          persist-credentials: false
-
-      - name: prek run (manual stage)
-        run: prek run --show-diff-on-failure --color=always --all-files --hook-stage manual
-        env:
-          CPYTHON_ROOT: ${{ github.workspace }}/cpython
+        continue-on-error: true

      - name: save prek cache
        if: ${{ github.ref == 'refs/heads/main' }} # only save on main
-        uses: actions/cache/save@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        uses: actions/cache/save@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5.0.4
        with:
          key: prek-${{ hashFiles('.pre-commit-config.yaml') }}
          path: ~/.cache/prek

-      - name: restore git permissions
-        if: ${{ !cancelled() }}
-        run: sudo chown -R "$(id -u):$(id -g)" .git
-
      - name: reviewdog
-        if: ${{ !cancelled() }}
-        uses: reviewdog/action-suggester@aa38384ceb608d00f84b4690cacc83a5aba307ff # v1.24.0
+        uses: reviewdog/action-suggester@aa38384ceb608d00f84b4690cacc83a5aba307ff # 1.24.0
        with:
          level: warning
          fail_level: error
+          cleanup: false

  miri:
    if: ${{ !contains(github.event.pull_request.labels.*.name, 'skip:ci') }}
@@ -611,23 +425,14 @@ jobs:
        with:
          persist-credentials: false

-      - uses: dtolnay/rust-toolchain@master
+      - uses: dtolnay/rust-toolchain@3c5f7ea28cd621ae0bf5283f0e981fb97b8a7af9
        with:
          toolchain: ${{ env.NIGHTLY_CHANNEL }}
          components: miri

-      - name: Restore cache
-        uses: actions/cache/restore@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+      - uses: Swatinem/rust-cache@c19371144df3bb44fab255c43d04cbc2ab54d1c4 # v2.9.1
        with:
-          path: |
-            ~/.cargo/bin/
-            ~/.cargo/registry/index/
-            ~/.cargo/registry/cache/
-            ~/.cargo/git/db/
-            target/
-          key: ${{ runner.os }}-${{ hashFiles('**/Cargo.toml') }}
-          restore-keys: |
-            ${{ runner.os }}-
+          save-if: ${{ github.ref == 'refs/heads/main' }}

      - name: Run tests under miri
        run: cargo +${{ env.NIGHTLY_CHANNEL }} miri test -p rustpython-vm -- miri_test
@@ -646,27 +451,17 @@ jobs:
        with:
          persist-credentials: false

-      - uses: dtolnay/rust-toolchain@stable
+      - uses: dtolnay/rust-toolchain@3c5f7ea28cd621ae0bf5283f0e981fb97b8a7af9
        with:
          components: clippy
+          toolchain: stable

-      - name: Restore cache
-        uses: actions/cache/restore@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+      - uses: Swatinem/rust-cache@c19371144df3bb44fab255c43d04cbc2ab54d1c4 # v2.9.1
        with:
-          path: |
-            ~/.cargo/bin/
-            ~/.cargo/registry/index/
-            ~/.cargo/registry/cache/
-            ~/.cargo/git/db/
-            target/
-          key: ${{ runner.os }}-${{ hashFiles('**/Cargo.toml') }}-
-          restore-keys: |
-            ${{ runner.os }}-stable--${{ hashFiles('**/Cargo.toml') }}-
-            ${{ runner.os }}-stable--
-            ${{ runner.os }}-
+          save-if: ${{ github.ref == 'refs/heads/main' }}

      - name: cargo clippy
-        run: cargo clippy --keep-going --manifest-path=crates/wasm/Cargo.toml -- -Dwarnings
+        run: cargo clippy --manifest-path=crates/wasm/Cargo.toml -- -Dwarnings

      - name: install wasm-pack
        run: curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh
@@ -677,29 +472,15 @@ jobs:
          tar -xzf geckodriver-v0.36.0-linux64.tar.gz -C geckodriver

      - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}

      - run: python -m pip install -r requirements.txt
        working-directory: ./wasm/tests
-
-      - uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
+      - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
        with:
-          package-manager-cache: false
-
-      - name: Get npm cache directory
-        id: npm-cache-dir
-        shell: bash
-        run: echo "dir=$(npm config get cache)" >> "$GITHUB_OUTPUT"
-
-      - name: Restore npm cache
-        uses: actions/cache/restore@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
-        # don't restore on main or release
-        if: github.ref != 'refs/heads/main' && github.ref != 'refs/heads/release'
-        with:
-          path: ${{ steps.npm-cache-dir.outputs.dir }}
-          key: node-${{ runner.os }}-wasm-demo-
-          restore-keys: |
-            node-${{ runner.os }}-wasm-demo-
-
+          cache: "npm"
+          cache-dependency-path: "wasm/demo/package-lock.json"
      - name: run test
        run: |
          driver_path="$(pwd)/../../geckodriver"
@@ -709,11 +490,8 @@ jobs:
        env:
          NODE_OPTIONS: "--openssl-legacy-provider"
        working-directory: ./wasm/demo
-
-      - uses: mwilliamson/setup-wabt-action@427f2fdd70bc4dbc2e53c2eb4f19f66162d71bd2 # v4.0.0
-        with:
-          wabt-version: "1.0.36"
-
+      - uses: mwilliamson/setup-wabt-action@v3
+        with: { wabt-version: "1.0.36" }
      - name: check wasm32-unknown without js
        run: |
          cd example_projects/wasm32_without_js/rustpython-without-js
@@ -723,7 +501,6 @@ jobs:
            echo "ERROR: wasm32-unknown module expects imports from the host environment" >&2
          fi
          cargo run --release --manifest-path wasm-runtime/Cargo.toml rustpython-without-js/target/wasm32-unknown-unknown/debug/rustpython_without_js.wasm
-
      - name: build notebook demo
        if: github.ref == 'refs/heads/release'
        run: |
@@ -733,24 +510,15 @@ jobs:
        env:
          NODE_OPTIONS: "--openssl-legacy-provider"
        working-directory: ./wasm/notebook
-
      - name: Deploy demo to Github Pages
        if: success() && github.ref == 'refs/heads/release'
-        uses: peaceiris/actions-gh-pages@84c30a85c19949d7eee79c4ff27748b70285e453 # v4.1.0
+        uses: peaceiris/actions-gh-pages@v4
        env:
          ACTIONS_DEPLOY_KEY: ${{ secrets.ACTIONS_DEMO_DEPLOY_KEY }}
          PUBLISH_DIR: ./wasm/demo/dist
          EXTERNAL_REPOSITORY: RustPython/demo
          PUBLISH_BRANCH: master

-      - name: Save npm cache
-        # Save only on main or release
-        if: github.ref == 'refs/heads/main' || github.ref == 'refs/heads/release'
-        uses: actions/cache/save@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
-        with:
-          path: ${{ steps.npm-cache-dir.outputs.dir }}
-          key: node-${{ runner.os }}-wasm-demo-${{ hashFiles('wasm/demo/package-lock.json') }}
-
  wasm-wasi:
    if: ${{ !contains(github.event.pull_request.labels.*.name, 'skip:ci') }}
    name: Run snippets and cpython tests on wasm-wasi
@@ -761,28 +529,17 @@ jobs:
        with:
          persist-credentials: false

-      - uses: dtolnay/rust-toolchain@stable
+      - uses: dtolnay/rust-toolchain@3c5f7ea28cd621ae0bf5283f0e981fb97b8a7af9
        with:
          target: wasm32-wasip1
+          toolchain: stable

-      - name: Restore cache
-        uses: actions/cache/restore@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+      - uses: Swatinem/rust-cache@c19371144df3bb44fab255c43d04cbc2ab54d1c4 # v2.9.1
        with:
-          path: |
-            ~/.cargo/bin/
-            ~/.cargo/registry/index/
-            ~/.cargo/registry/cache/
-            ~/.cargo/git/db/
-            target/
-          key: ${{ runner.os }}-${{ hashFiles('**/Cargo.toml') }}-
-          restore-keys: |
-            ${{ runner.os }}-stable-wasm32-wasip1-${{ hashFiles('**/Cargo.toml') }}-
-            ${{ runner.os }}-stable-wasm32-wasip1-
-            ${{ runner.os }}-stable--${{ hashFiles('**/Cargo.toml') }}-
-            ${{ runner.os }}-stable--
+          save-if: ${{ github.ref == 'refs/heads/main' }}

      - name: Setup Wasmer
-        uses: wasmerio/setup-wasmer@24b15c95293d23f89c68bd40dac76338f773e924 # v3.1
+        uses: wasmerio/setup-wasmer@v3

      - name: Install clang
        uses: ./.github/actions/install-linux-deps
@@ -790,44 +547,8 @@ jobs:
          clang: true

      - name: build rustpython
-        run: cargo build --release --target wasm32-wasip1 --no-default-features --features freeze-stdlib,stdlib,stdio,importlib,host_env --verbose
+        run: cargo build --release --target wasm32-wasip1 --features freeze-stdlib,stdlib --verbose
      - name: run snippets
        run: wasmer run --dir "$(pwd)" target/wasm32-wasip1/release/rustpython.wasm -- "$(pwd)/extra_tests/snippets/stdlib_random.py"
      - name: run cpython unittest
        run: wasmer run --dir "$(pwd)" target/wasm32-wasip1/release/rustpython.wasm -- "$(pwd)/Lib/test/test_int.py"
-
-  cargo_doc:
-    needs:
-      - determine_changes
-    if: |
-      (
-        !contains(github.event.pull_request.labels.*.name, 'skip:ci') &&
-        needs.determine_changes.outputs.rust_code == 'true'
-      ) || github.ref == 'refs/heads/main'
-    env:
-      RUST_BACKTRACE: full
-    name: cargo doc
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-        with:
-          persist-credentials: false
-
-      - uses: dtolnay/rust-toolchain@stable
-
-      - name: Restore cache
-        uses: actions/cache/restore@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
-        with:
-          path: |
-            ~/.cargo/bin/
-            ~/.cargo/registry/index/
-            ~/.cargo/registry/cache/
-            ~/.cargo/git/db/
-            target/
-          key: ${{ runner.os }}-${{ hashFiles('**/Cargo.toml') }}-
-          restore-keys: |
-            ${{ runner.os }}-stable--${{ hashFiles('**/Cargo.toml') }}-
-            ${{ runner.os }}-stable--
-
-      - name: cargo doc
-        run: cargo doc --locked
--- a/.github/workflows/cron-ci.yaml
+++ b/.github/workflows/cron-ci.yaml
@@ -1,5 +1,3 @@
-name: Periodic checks/tasks
-
 on:
  schedule:
    - cron: "0 0 * * 6"
@@ -7,15 +5,15 @@ on:
  push:
    paths:
      - .github/workflows/cron-ci.yaml
-    branches:
-      - main
  pull_request:
    paths:
      - .github/workflows/cron-ci.yaml

+name: Periodic checks/tasks
+
 env:
-  CARGO_ARGS: --no-default-features --features stdlib,importlib,stdio,encodings,ssl-rustls-aws-lc,jit,host_env
-  FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: 'true' # TODO: Remove on 2026/06/02
+  CARGO_ARGS: --no-default-features --features stdlib,importlib,stdio,encodings,ssl-rustls,jit,host_env
+  PYTHON_VERSION: "3.14.3"

 jobs:
  # codecov collects code coverage data from the rust tests, python snippets and python test suite.
@@ -31,32 +29,24 @@ jobs:
          persist-credentials: false

      - uses: dtolnay/rust-toolchain@stable
-
-      - uses: taiki-e/install-action@b550161ef8a7bc4f2a671c0b03a18ac9ccedea1e # v2.79.1
+      - uses: taiki-e/install-action@cargo-llvm-cov
+      - uses: actions/setup-python@v6.2.0
        with:
-          tool: cargo-llvm-cov
-
-      - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
-
+          python-version: ${{ env.PYTHON_VERSION }}
      - run: sudo apt-get update && sudo apt-get -y install lcov
-
      - name: Run cargo-llvm-cov with Rust tests.
-        run: cargo llvm-cov --no-report --workspace --exclude rustpython_wasm --exclude rustpython-compiler-source --exclude rustpython-venvlauncher --verbose --no-default-features --features stdlib,importlib,stdio,encodings,ssl-rustls-aws-lc,jit,host_env
-
+        run: cargo llvm-cov --no-report --workspace --exclude rustpython_wasm --exclude rustpython-compiler-source --exclude rustpython-venvlauncher --verbose --no-default-features --features stdlib,importlib,stdio,encodings,ssl-rustls,jit,host_env
      - name: Run cargo-llvm-cov with Python snippets.
        run: python scripts/cargo-llvm-cov.py
        continue-on-error: true
-
      - name: Run cargo-llvm-cov with Python test suite.
        run: cargo llvm-cov --no-report run -- -m test -u all --slowest --fail-env-changed
        continue-on-error: true
-
      - name: Prepare code coverage data
        run: cargo llvm-cov report --lcov --output-path='codecov.lcov'
-
      - name: Upload to Codecov
        if: ${{ github.event_name != 'pull_request' }}
-        uses: codecov/codecov-action@57e3a136b779b570ffcdbf80b3bdc90e7fab3de2 # v6.0.0
+        uses: codecov/codecov-action@v5
        with:
          files: ./codecov.lcov

@@ -71,15 +61,12 @@ jobs:
          persist-credentials: true

      - uses: dtolnay/rust-toolchain@stable
-
      - name: build rustpython
        run: cargo build --release --verbose
-
      - name: collect tests data
        run: cargo run --release extra_tests/jsontests.py
        env:
          RUSTPYTHONPATH: ${{ github.workspace }}/Lib
-
      - name: upload tests data to the website
        if: ${{ github.event_name != 'pull_request' }}
        env:
@@ -109,19 +96,17 @@ jobs:
          persist-credentials: true

      - uses: dtolnay/rust-toolchain@stable
-
-      - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
-
+      - uses: actions/setup-python@v6.2.0
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
      - name: build rustpython
        run: cargo build --release --verbose
-
      - name: Collect what is left data
        run: |
          chmod +x ./scripts/whats_left.py
          ./scripts/whats_left.py --features "ssl,sqlite" > whats_left.temp
        env:
          RUSTPYTHONPATH: ${{ github.workspace }}/Lib
-
      - name: Upload data to the website
        if: ${{ github.event_name != 'pull_request' }}
        env:
@@ -172,20 +157,16 @@ jobs:
          persist-credentials: true

      - uses: dtolnay/rust-toolchain@stable
-
-      - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
-
+      - uses: actions/setup-python@v6.2.0
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
      - run: cargo install cargo-criterion
-
      - name: build benchmarks
        run: cargo build --release --benches
-
      - name: collect execution benchmark data
        run: cargo criterion --bench execution
-
      - name: collect microbenchmarks data
        run: cargo criterion --bench microbenchmarks
-
      - name: restructure generated files
        run: |
          cd ./target/criterion/reports
@@ -198,7 +179,6 @@ jobs:
          cd ..
          mv reports/* .
          rmdir reports
-
      - name: upload benchmark data to the website
        if: ${{ github.event_name != 'pull_request' }}
        env:
--- a/.github/workflows/lib-deps-check.yaml
+++ b/.github/workflows/lib-deps-check.yaml
@@ -10,6 +10,9 @@ concurrency:
  group: ${{ github.workflow }}-${{ github.ref_name }}-${{ github.event.pull_request.number }}
  cancel-in-progress: true

+env:
+  PYTHON_VERSION: "3.14.3"
+
 jobs:
  check_deps:
    permissions:
@@ -34,71 +37,46 @@ jobs:
          # Checkout only Lib/ directory from PR head for accurate comparison
          git checkout ${{ github.event.pull_request.head.sha }} -- Lib/

-      - name: Get target CPython version
-        id: cpython-version
-        run: |
-          version=$(cat .python-version)
-          echo "version=${version}" >> "$GITHUB_OUTPUT"
-
      - name: Checkout CPython
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-        with:
-          repository: python/cpython
-          path: cpython
-          ref: "v${{ steps.cpython-version.outputs.version }}"
-          fetch-depth: 1
-          persist-credentials: false
+        run: |
+          git clone --depth 1 --branch "v${{ env.PYTHON_VERSION }}" https://github.com/python/cpython.git cpython

      - name: Get changed Lib files
-        id: all-changed-files
-        run: |
-          # Get the list of changed files under Lib/
-          {
-            echo 'changed<<EOF'
-
-            git diff --name-only ${{ github.event.pull_request.base.sha }} ${{ github.event.pull_request.head.sha }} -- 'Lib/*.py' 'Lib/**/*.py'
-
-            echo 'EOF' 
-          } >> "$GITHUB_OUTPUT"
-
-      - name: Parse changed files
        id: changed-files
        run: |
-          from os import environ
+          # Get the list of changed files under Lib/
+          changed=$(git diff --name-only ${{ github.event.pull_request.base.sha }} ${{ github.event.pull_request.head.sha }} -- 'Lib/*.py' 'Lib/**/*.py' | head -50)
+          echo "Changed files:"
+          echo "$changed"

-          files = environ["FILES"]
-          modules = set()
-          for file in files.splitlines():
-            file = file.strip()
-
-            if file.startswith("Lib/test/"):
-              # Test files:
-              # Lib/test/test_pydoc.py -> test_pydoc
-              # Lib/test/test_pydoc/foo.py -> test_pydoc
-              module = file.removeprefix("Lib/test/").split("/")[0]
-              if not module.startswith("test_"):
+          # Extract unique module names
+          modules=""
+          for file in $changed; do
+            if [[ "$file" == Lib/test/* ]]; then
+              # Test files: Lib/test/test_pydoc.py -> test_pydoc, Lib/test/test_pydoc/foo.py -> test_pydoc
+              module=$(echo "$file" | sed -E 's|^Lib/test/||; s|\.py$||; s|/.*||')
+              # Skip non-test files in test/ (e.g., support.py, __init__.py)
+              if [[ ! "$module" == test_* ]]; then
                continue
-            else:
-              # Lib files:
-              # Lib/foo.py -> foo
-              # Lib/foo/__init__.py -> foo
-              module = file.removeprefix("Lib/").split("/")[0]
-            
-            module = module.split(".")[0]
-            modules.add(module)
+              fi
+            else
+              # Lib files: Lib/foo.py -> foo, Lib/foo/__init__.py -> foo
+              module=$(echo "$file" | sed -E 's|^Lib/||; s|/__init__\.py$||; s|\.py$||; s|/.*||')
+            fi
+            if [[ -n "$module" && ! " $modules " =~ " $module " ]]; then
+              modules="$modules $module"
+            fi
+          done

-          print(f"{modules=}")
-          output = " ".join(sorted(modules))
-          output_file = environ["GITHUB_OUTPUT"]
-          with open(output_file, mode="a", encoding="utf-8") as fd:
-            fd.write(f"modules={output}\n")
-        env:
-          FILES: ${{ steps.all-changed-files.outputs.changed }}
-        shell: python
+          modules=$(echo "$modules" | xargs)  # trim whitespace
+          echo "Detected modules: $modules"
+          echo "modules=$modules" >> $GITHUB_OUTPUT

      - name: Setup Python
        if: steps.changed-files.outputs.modules != ''
        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0
+        with:
+          python-version: "${{ env.PYTHON_VERSION }}"

      - name: Run deps check
        if: steps.changed-files.outputs.modules != ''
@@ -114,7 +92,7 @@ jobs:

      - name: Post comment
        if: steps.deps-check.outputs.deps_output != ''
-        uses: marocchino/sticky-pull-request-comment@0ea0beb66eb9baf113663a64ec522f60e49231c0 # v3.0.4
+        uses: marocchino/sticky-pull-request-comment@v3
        with:
          header: lib-deps-check
          number: ${{ github.event.pull_request.number }}
@@ -131,7 +109,7 @@ jobs:

      - name: Remove comment if no Lib changes
        if: steps.changed-files.outputs.modules == ''
-        uses: marocchino/sticky-pull-request-comment@0ea0beb66eb9baf113663a64ec522f60e49231c0 # v3.0.4
+        uses: marocchino/sticky-pull-request-comment@v3
        with:
          header: lib-deps-check
          number: ${{ github.event.pull_request.number }}
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -16,15 +16,11 @@ env:
  X86_64_PC_WINDOWS_MSVC_OPENSSL_LIB_DIR: C:\Program Files\OpenSSL\lib\VC\x64\MD
  X86_64_PC_WINDOWS_MSVC_OPENSSL_INCLUDE_DIR: C:\Program Files\OpenSSL\include

-permissions: {}
-
 jobs:
  build:
    runs-on: ${{ matrix.os }}
    # Disable this scheduled job when running on a fork.
    if: ${{ github.repository == 'RustPython/RustPython' || github.event_name != 'schedule' }}
-    permissions:
-      contents: read
    strategy:
      matrix:
        include:
@@ -56,7 +52,7 @@ jobs:
        with:
          persist-credentials: false

-      - uses: dtolnay/rust-toolchain@stable
+      - uses: dtolnay/rust-toolchain@3c5f7ea28cd621ae0bf5283f0e981fb97b8a7af9
        with:
          target: ${{ matrix.target }}

@@ -68,7 +64,7 @@ jobs:
          libtool: true

      - name: Build RustPython
-        run: cargo build --release --target=${{ matrix.target }} --verbose --no-default-features --features stdlib,stdio,importlib,encodings,sqlite,host_env,ssl-rustls-aws-lc,threading,jit
+        run: cargo build --release --target=${{ matrix.target }} --verbose --no-default-features --features stdlib,stdio,importlib,encodings,sqlite,host_env,ssl-rustls,threading,jit

      - name: Rename Binary
        run: cp target/${{ matrix.target }}/release/rustpython target/rustpython-release-${{ runner.os }}-${{ matrix.target }}
@@ -79,7 +75,7 @@ jobs:
        if: runner.os == 'Windows'

      - name: Upload Binary Artifacts
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
        with:
          name: rustpython-release-${{ runner.os }}-${{ matrix.target }}
          path: target/rustpython-release-${{ runner.os }}-${{ matrix.target }}*
@@ -88,14 +84,12 @@ jobs:
    runs-on: ubuntu-latest
    # Disable this scheduled job when running on a fork.
    if: ${{ github.repository == 'RustPython/RustPython' || github.event_name != 'schedule' }}
-    permissions:
-      contents: read
    steps:
      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
        with:
          persist-credentials: false

-      - uses: dtolnay/rust-toolchain@stable
+      - uses: dtolnay/rust-toolchain@3c5f7ea28cd621ae0bf5283f0e981fb97b8a7af9
        with:
          targets: wasm32-wasip1

@@ -106,7 +100,7 @@ jobs:
        run: cp target/wasm32-wasip1/release/rustpython.wasm target/rustpython-release-wasm32-wasip1.wasm

      - name: Upload Binary Artifacts
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
        with:
          name: rustpython-release-wasm32-wasip1
          path: target/rustpython-release-wasm32-wasip1.wasm
@@ -114,11 +108,11 @@ jobs:
      - name: install wasm-pack
        run: curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh

-      - uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
+      - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
        with:
          package-manager-cache: false

-      - uses: mwilliamson/setup-wabt-action@427f2fdd70bc4dbc2e53c2eb4f19f66162d71bd2 # v4.0.0
+      - uses: mwilliamson/setup-wabt-action@febe2a12b7ccb999a6e5d953a8362a3b7ffcf148 # v3.2.0
        with:
          wabt-version: "1.0.30"

@@ -141,7 +135,7 @@ jobs:

      - name: Deploy demo to Github Pages
        if: ${{ github.repository == 'RustPython/RustPython' }}
-        uses: peaceiris/actions-gh-pages@84c30a85c19949d7eee79c4ff27748b70285e453 # v4.1.0
+        uses: peaceiris/actions-gh-pages@4f9cc6602d3f66b9c108549d475ec49e8ef4d45e # v4.0.0
        with:
          deploy_key: ${{ secrets.ACTIONS_DEMO_DEPLOY_KEY }}
          publish_dir: ./wasm/demo/dist
@@ -153,8 +147,6 @@ jobs:
    # Disable this scheduled job when running on a fork.
    if: ${{ github.repository == 'RustPython/RustPython' || github.event_name != 'schedule' }}
    needs: [build, build-wasm]
-    permissions:
-      contents: write # for creating a release
    steps:
      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
        with:
@@ -195,7 +187,7 @@ jobs:
              $PRERELEASE_ARG \
              bin/rustpython-release-*
        env:
-          GH_TOKEN: ${{ github.token }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          tag: ${{ github.ref_name }}
          run: ${{ github.run_number }}
          PRE_RELEASE_INPUT: ${{ github.event.inputs.pre-release }}
--- a/.github/workflows/update-caches.yml
+++ b/.github/workflows/update-caches.yml
@@ -1,77 +0,0 @@
-name: Update Actions Caches
-
-permissions:
-  contents: read
-
-on:
-  workflow_dispatch:
-  push:
-    branches:
-      - main
-
-concurrency:
-    group: ${{ github.workflow }}
-    cancel-in-progress: false
-
-env:
-  CARGO_INCREMENTAL: 0
-  CARGO_TERM_COLOR: always
-  CARGO_PROFILE_TEST_DEBUG: 0
-  CARGO_PROFILE_DEV_DEBUG: 0
-  CARGO_PROFILE_RELEASE_DEBUG: 0
-  CARGO_ARGS: --workspace --no-default-features --features stdlib,importlib,stdio,encodings,sqlite,ssl-rustls-aws-lc,host_env,threading,jit --exclude rustpython_wasm --exclude rustpython-compiler-source --exclude rustpython-venvlauncher
-
-jobs:
-  build-caches:
-    name: Build Caches
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        include:
-          - os: macos-latest
-            toolchain: stable
-            target: ""
-          - os: ubuntu-latest
-            toolchain: stable
-            target: ""
-          - os: windows-latest
-            toolchain: stable
-            target: ""
-    steps:
-      - name: Checkout RustPython main branch
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
-        with:
-          repository: RustPython/RustPython
-          ref: main
-          persist-credentials: false
-
-      - name: Setup Rust
-        uses: dtolnay/rust-toolchain@3c5f7ea28cd621ae0bf5283f0e981fb97b8a7af9
-        with:
-          toolchain: ${{ matrix.toolchain }}
-          target: ${{ matrix.target }}
-
-      - name: Install macos dependencies
-        uses: ./.github/actions/install-macos-deps
-        with:
-          openssl: true
-
-      - name: Build dev cache # dev profile used by check & doc
-        run: cargo build --profile dev ${{ env.CARGO_ARGS }}
-
-      - name: Build test cache
-        run: cargo build --profile test ${{ env.CARGO_ARGS }}
-
-      - name: Build release cache
-        run: cargo build --profile release ${{ env.CARGO_ARGS }}
-
-      - name: Save cache
-        uses: actions/cache/save@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
-        with:
-          path: |
-            ~/.cargo/bin/
-            ~/.cargo/registry/index/
-            ~/.cargo/registry/cache/
-            ~/.cargo/git/db/
-            target/
-          key: ${{ runner.os }}-${{ matrix.toolchain }}-${{ matrix.target }}-${{ hashFiles('**/Cargo.toml') }}-${{ hashFiles('Cargo.lock') }}-${{ github.sha }}
--- a/.github/workflows/update-doc-db.yml
+++ b/.github/workflows/update-doc-db.yml
@@ -43,7 +43,7 @@ jobs:
      - name: Generate docs
        run: python crates/doc/generate.py

-      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+      - uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
        with:
          name: doc-db-${{ inputs.python-version }}-${{ matrix.os }}
          path: "crates/doc/generated/*.json"
@@ -87,18 +87,19 @@ jobs:

          OUTPUT_FILE='crates/doc/src/data.inc.rs'

-          # shellcheck disable=SC2016
-          {
-            echo '// This file was auto-generated by `.github/workflows/update-doc-db.yml`.'
-            echo "// CPython version: ${PYTHON_VERSION}"
-            echo '// spell-checker: disable'
-            echo ''
-            echo "pub static DB: phf::Map<&'static str, &'static str> = phf::phf_map! {"
-            cat crates/doc/generated/raw_entries.txt
-            echo '};'
-          } > "$OUTPUT_FILE"
+          echo -n '' > $OUTPUT_FILE

-      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+          echo '// This file was auto-generated by `.github/workflows/update-doc-db.yml`.' >> $OUTPUT_FILE
+          echo "// CPython version: ${PYTHON_VERSION}" >> $OUTPUT_FILE
+          echo '// spell-checker: disable' >> $OUTPUT_FILE
+
+          echo '' >> $OUTPUT_FILE
+
+          echo "pub static DB: phf::Map<&'static str, &'static str> = phf::phf_map! {" >> $OUTPUT_FILE
+          cat crates/doc/generated/raw_entries.txt >> $OUTPUT_FILE
+          echo '};' >> $OUTPUT_FILE
+
+      - uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
        with:
          name: doc-db-${{ inputs.python-version }}
          path: "crates/doc/src/data.inc.rs"
--- a/.github/workflows/update-libs-status.yaml
+++ b/.github/workflows/update-libs-status.yaml
@@ -13,6 +13,7 @@ permissions:
  issues: write

 env:
+  PYTHON_VERSION: "v3.14.3"
  ISSUE_ID: "6839"

 jobs:
@@ -28,20 +29,13 @@ jobs:
          sparse-checkout: |-
              Lib
              scripts/update_lib
-              .python-version

-      - name: Get target CPython version
-        id: cpython-version
-        run: |
-          version=$(cat rustpython/.python-version)
-          echo "version=${version}" >> "$GITHUB_OUTPUT"
-
-      - name: Clone CPython
+      - name: Clone CPython ${{ env.PYTHON_VERSION }}
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
        with:
          repository: python/cpython
          path: cpython
-          ref: "v${{ steps.cpython-version.outputs.version }}"
+          ref: ${{ env.PYTHON_VERSION }}
          persist-credentials: false
          sparse-checkout: |
            Lib
@@ -62,14 +56,14 @@ jobs:

          ## Summary

-          Check \`scripts/update_lib\` for tools. As a note, the current latest Python version is \`${{ steps.cpython-version.outputs.version }}\`.
+          Check \`scripts/update_lib\` for tools. As a note, the current latest Python version is \`${{ env.PYTHON_VERSION }}\`.

          Previous versions' issues as reference
          - 3.13: #5529 

          <!-- 
          Quick guideline for Copilot:
-          # Clone \`github.com/python/cpython\` \`${{ steps.cpython-version.outputs.version }}\` tag under RustPython working dir with depth 1 option; never 3.14.0 or 3.14.1 or 3.14.2
+          # Clone \`github.com/python/cpython\` \`${{ env.PYTHON_VERSION }}\` tag under RustPython working dir with depth 1 option; never 3.14.0 or 3.14.1 or 3.14.2
          # Pick a library or test to update. Probably user give one.
          # Run \`python3 scripts/update_lib quick <name>\`
          # A commit is automatically created. push the commit.
--- a/.github/workflows/upgrade-pylib.lock.yml
+++ b/.github/workflows/upgrade-pylib.lock.yml
@@ -58,11 +58,11 @@ jobs:
      comment_repo: ""
    steps:
      - name: Setup Scripts
-        uses: github/gh-aw/actions/setup@2c1a237d2048b0e2412e7d7528892ea1257840e2 # v0.74.4
+        uses: github/gh-aw/actions/setup@48d8fdfddc8cad854ac0c70ceb573f09fb8f9c9b # v0.62.5
        with:
          destination: /opt/gh-aw/actions
      - name: Check workflow file timestamps
-        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8
        env:
          GH_AW_WORKFLOW_FILE: "upgrade-pylib.lock.yml"
        with:
@@ -99,7 +99,7 @@ jobs:
      secret_verification_result: ${{ steps.validate-secret.outputs.verification_result }}
    steps:
      - name: Setup Scripts
-        uses: github/gh-aw/actions/setup@2c1a237d2048b0e2412e7d7528892ea1257840e2 # v0.74.4
+        uses: github/gh-aw/actions/setup@48d8fdfddc8cad854ac0c70ceb573f09fb8f9c9b # v0.62.5
        with:
          destination: /opt/gh-aw/actions
      - name: Checkout repository
@@ -114,7 +114,7 @@ jobs:
        run: bash /opt/gh-aw/actions/create_gh_aw_tmp_dir.sh
      # Cache configuration from frontmatter processed below
      - name: Cache (cpython-lib-${{ env.PYTHON_VERSION }})
-        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        uses: actions/cache@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5.0.4
        with:
          key: cpython-lib-${{ env.PYTHON_VERSION }}
          path: cpython
@@ -135,7 +135,7 @@ jobs:
        id: checkout-pr
        if: |
          github.event.pull_request
-        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8
        env:
          GH_TOKEN: ${{ secrets.GH_AW_GITHUB_MCP_SERVER_TOKEN || secrets.GH_AW_GITHUB_TOKEN || secrets.GITHUB_TOKEN }}
        with:
@@ -147,7 +147,7 @@ jobs:
            await main();
      - name: Generate agentic run info
        id: generate_aw_info
-        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8
        with:
          script: |
            const fs = require('fs');
@@ -201,7 +201,7 @@ jobs:
        run: bash /opt/gh-aw/actions/install_awf_binary.sh v0.16.4
      - name: Determine automatic lockdown mode for GitHub MCP server
        id: determine-automatic-lockdown
-        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8
        env:
          GH_AW_GITHUB_TOKEN: ${{ secrets.GH_AW_GITHUB_TOKEN }}
          GH_AW_GITHUB_MCP_SERVER_TOKEN: ${{ secrets.GH_AW_GITHUB_MCP_SERVER_TOKEN }}
@@ -484,7 +484,7 @@ jobs:
          }
          GH_AW_MCP_CONFIG_EOF
      - name: Generate workflow overview
-        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8
        with:
          script: |
            const { generateWorkflowOverview } = require('/opt/gh-aw/actions/generate_workflow_overview.cjs');
@@ -508,11 +508,10 @@ jobs:
          cat << 'GH_AW_PROMPT_EOF' > "$GH_AW_PROMPT"
          <system>
          GH_AW_PROMPT_EOF
-          {
-            cat "/opt/gh-aw/prompts/xpia.md"
-            cat "/opt/gh-aw/prompts/temp_folder_prompt.md"
-            cat "/opt/gh-aw/prompts/markdown.md"
-            cat << 'GH_AW_PROMPT_EOF'
+          cat "/opt/gh-aw/prompts/xpia.md" >> "$GH_AW_PROMPT"
+          cat "/opt/gh-aw/prompts/temp_folder_prompt.md" >> "$GH_AW_PROMPT"
+          cat "/opt/gh-aw/prompts/markdown.md" >> "$GH_AW_PROMPT"
+          cat << 'GH_AW_PROMPT_EOF' >> "$GH_AW_PROMPT"
          <safe-outputs>
          <description>GitHub API Access Instructions</description>
          <important>
@@ -570,15 +569,14 @@ jobs:
          </github-context>
          
          GH_AW_PROMPT_EOF
-            cat << 'GH_AW_PROMPT_EOF'
+          cat << 'GH_AW_PROMPT_EOF' >> "$GH_AW_PROMPT"
          </system>
          GH_AW_PROMPT_EOF
-            cat << 'GH_AW_PROMPT_EOF'
+          cat << 'GH_AW_PROMPT_EOF' >> "$GH_AW_PROMPT"
          {{#runtime-import .github/workflows/upgrade-pylib.md}}
          GH_AW_PROMPT_EOF
-          } >> "$GH_AW_PROMPT"
      - name: Substitute placeholders
-        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8
        env:
          GH_AW_PROMPT: /tmp/gh-aw/aw-prompts/prompt.txt
          GH_AW_ENV_ISSUE_ID: ${{ env.ISSUE_ID }}
@@ -612,7 +610,7 @@ jobs:
              }
            });
      - name: Interpolate variables and render templates
-        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8
        env:
          GH_AW_PROMPT: /tmp/gh-aw/aw-prompts/prompt.txt
          GH_AW_ENV_ISSUE_ID: ${{ env.ISSUE_ID }}
@@ -692,7 +690,7 @@ jobs:
          bash /opt/gh-aw/actions/stop_mcp_gateway.sh "$GATEWAY_PID"
      - name: Redact secrets in logs
        if: always()
-        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8
        with:
          script: |
            const { setupGlobals } = require('/opt/gh-aw/actions/setup_globals.cjs');
@@ -707,14 +705,14 @@ jobs:
          SECRET_GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      - name: Upload Safe Outputs
        if: always()
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
        with:
          name: safe-output
          path: ${{ env.GH_AW_SAFE_OUTPUTS }}
          if-no-files-found: warn
      - name: Ingest agent output
        id: collect_output
-        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8
        env:
          GH_AW_SAFE_OUTPUTS: ${{ env.GH_AW_SAFE_OUTPUTS }}
          GH_AW_ALLOWED_DOMAINS: "*.pythonhosted.org,anaconda.org,api.business.githubcopilot.com,api.enterprise.githubcopilot.com,api.github.com,api.githubcopilot.com,api.individual.githubcopilot.com,api.snapcraft.io,archive.ubuntu.com,azure.archive.ubuntu.com,binstar.org,bootstrap.pypa.io,conda.anaconda.org,conda.binstar.org,crates.io,crl.geotrust.com,crl.globalsign.com,crl.identrust.com,crl.sectigo.com,crl.thawte.com,crl.usertrust.com,crl.verisign.com,crl3.digicert.com,crl4.digicert.com,crls.ssl.com,files.pythonhosted.org,github.com,host.docker.internal,index.crates.io,json-schema.org,json.schemastore.org,keyserver.ubuntu.com,ocsp.digicert.com,ocsp.geotrust.com,ocsp.globalsign.com,ocsp.identrust.com,ocsp.sectigo.com,ocsp.ssl.com,ocsp.thawte.com,ocsp.usertrust.com,ocsp.verisign.com,packagecloud.io,packages.cloud.google.com,packages.microsoft.com,pip.pypa.io,ppa.launchpad.net,pypi.org,pypi.python.org,raw.githubusercontent.com,registry.npmjs.org,repo.anaconda.com,repo.continuum.io,s.symcb.com,s.symcd.com,security.ubuntu.com,sh.rustup.rs,static.crates.io,static.rust-lang.org,telemetry.enterprise.githubcopilot.com,ts-crl.ws.symantec.com,ts-ocsp.ws.symantec.com"
@@ -728,13 +726,13 @@ jobs:
            await main();
      - name: Upload sanitized agent output
        if: always() && env.GH_AW_AGENT_OUTPUT
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
        with:
          name: agent-output
          path: ${{ env.GH_AW_AGENT_OUTPUT }}
          if-no-files-found: warn
      - name: Upload engine output files
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
        with:
          name: agent_outputs
          path: |
@@ -743,7 +741,7 @@ jobs:
          if-no-files-found: ignore
      - name: Parse agent logs for step summary
        if: always()
-        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8
        env:
          GH_AW_AGENT_OUTPUT: /tmp/gh-aw/sandbox/agent/logs/
        with:
@@ -754,7 +752,7 @@ jobs:
            await main();
      - name: Parse MCP gateway logs for step summary
        if: always()
-        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8
        with:
          script: |
            const { setupGlobals } = require('/opt/gh-aw/actions/setup_globals.cjs');
@@ -774,7 +772,7 @@ jobs:
      - name: Upload agent artifacts
        if: always()
        continue-on-error: true
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
        with:
          name: agent-artifacts
          path: |
@@ -806,7 +804,7 @@ jobs:
      total_count: ${{ steps.missing_tool.outputs.total_count }}
    steps:
      - name: Setup Scripts
-        uses: github/gh-aw/actions/setup@2c1a237d2048b0e2412e7d7528892ea1257840e2 # v0.74.4
+        uses: github/gh-aw/actions/setup@48d8fdfddc8cad854ac0c70ceb573f09fb8f9c9b # v0.62.5
        with:
          destination: /opt/gh-aw/actions
      - name: Download agent output artifact
@@ -822,7 +820,7 @@ jobs:
          echo "GH_AW_AGENT_OUTPUT=/tmp/gh-aw/safeoutputs/agent_output.json" >> "$GITHUB_ENV"
      - name: Process No-Op Messages
        id: noop
-        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8
        env:
          GH_AW_AGENT_OUTPUT: ${{ env.GH_AW_AGENT_OUTPUT }}
          GH_AW_NOOP_MAX: 1
@@ -836,7 +834,7 @@ jobs:
            await main();
      - name: Record Missing Tool
        id: missing_tool
-        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8
        env:
          GH_AW_AGENT_OUTPUT: ${{ env.GH_AW_AGENT_OUTPUT }}
          GH_AW_WORKFLOW_NAME: "Upgrade Python Library"
@@ -849,7 +847,7 @@ jobs:
            await main();
      - name: Handle Agent Failure
        id: handle_agent_failure
-        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8
        env:
          GH_AW_AGENT_OUTPUT: ${{ env.GH_AW_AGENT_OUTPUT }}
          GH_AW_WORKFLOW_NAME: "Upgrade Python Library"
@@ -867,7 +865,7 @@ jobs:
            await main();
      - name: Handle No-Op Message
        id: handle_noop_message
-        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8
        env:
          GH_AW_AGENT_OUTPUT: ${{ env.GH_AW_AGENT_OUTPUT }}
          GH_AW_WORKFLOW_NAME: "Upgrade Python Library"
@@ -884,7 +882,7 @@ jobs:
            await main();
      - name: Handle Create Pull Request Error
        id: handle_create_pr_error
-        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8
        env:
          GH_AW_AGENT_OUTPUT: ${{ env.GH_AW_AGENT_OUTPUT }}
          GH_AW_WORKFLOW_NAME: "Upgrade Python Library"
@@ -898,7 +896,7 @@ jobs:
            await main();
      - name: Update reaction comment with completion status
        id: conclusion
-        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8
        env:
          GH_AW_AGENT_OUTPUT: ${{ env.GH_AW_AGENT_OUTPUT }}
          GH_AW_COMMENT_ID: ${{ needs.activation.outputs.comment_id }}
@@ -927,7 +925,7 @@ jobs:
      success: ${{ steps.parse_results.outputs.success }}
    steps:
      - name: Setup Scripts
-        uses: github/gh-aw/actions/setup@2c1a237d2048b0e2412e7d7528892ea1257840e2 # v0.74.4
+        uses: github/gh-aw/actions/setup@48d8fdfddc8cad854ac0c70ceb573f09fb8f9c9b # v0.62.5
        with:
          destination: /opt/gh-aw/actions
      - name: Download agent artifacts
@@ -948,7 +946,7 @@ jobs:
        run: |
          echo "Agent output-types: $AGENT_OUTPUT_TYPES"
      - name: Setup threat detection
-        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8
        env:
          WORKFLOW_NAME: "Upgrade Python Library"
          WORKFLOW_DESCRIPTION: "Pick an out-of-sync Python library from the todo list and upgrade it\nby running `scripts/update_lib quick`, then open a pull request."
@@ -1001,7 +999,7 @@ jobs:
          XDG_CONFIG_HOME: /home/runner
      - name: Parse threat detection results
        id: parse_results
-        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8
        with:
          script: |
            const { setupGlobals } = require('/opt/gh-aw/actions/setup_globals.cjs');
@@ -1010,7 +1008,7 @@ jobs:
            await main();
      - name: Upload threat detection log
        if: always()
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7.0.0
        with:
          name: threat-detection.log
          path: /tmp/gh-aw/threat-detection/detection.log
@@ -1039,7 +1037,7 @@ jobs:
      process_safe_outputs_temporary_id_map: ${{ steps.process_safe_outputs.outputs.temporary_id_map }}
    steps:
      - name: Setup Scripts
-        uses: github/gh-aw/actions/setup@2c1a237d2048b0e2412e7d7528892ea1257840e2 # v0.74.4
+        uses: github/gh-aw/actions/setup@48d8fdfddc8cad854ac0c70ceb573f09fb8f9c9b # v0.62.5
        with:
          destination: /opt/gh-aw/actions
      - name: Download agent output artifact
@@ -1081,7 +1079,7 @@ jobs:
          echo "Git configured with standard GitHub Actions identity"
      - name: Process Safe Outputs
        id: process_safe_outputs
-        uses: actions/github-script@3a2844b7e9c422d3c10d287c895573f7108da1b3 # v9.0.0
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8
        env:
          GH_AW_AGENT_OUTPUT: ${{ env.GH_AW_AGENT_OUTPUT }}
          GH_AW_SAFE_OUTPUTS_HANDLER_CONFIG: "{\"create_pull_request\":{\"base_branch\":\"${{ github.ref_name }}\",\"draft\":false,\"expires\":30,\"labels\":[\"pylib-sync\"],\"max\":1,\"max_patch_size\":1024,\"title_prefix\":\"Update \"},\"missing_data\":{},\"missing_tool\":{}}"
--- a/.github/workflows/upgrade-pylib.md
+++ b/.github/workflows/upgrade-pylib.md
@@ -52,7 +52,7 @@ cache:
    - cpython-lib-

 env:
-  PYTHON_VERSION: "v3.14.4"
+  PYTHON_VERSION: "v3.14.3"
  ISSUE_ID: "6839"
 ---

--- a/.github/zizmor.yml
+++ b/.github/zizmor.yml
@@ -1,14 +0,0 @@
-rules:
-  unpinned-uses:
-    config:
-      policies:
-        # dtolnay/rust-toolchain is a trusted action that uses lightweight branch
-        # refs (@stable, @nightly, etc.) by design. Pinning to a hash would break
-        # the intended usage pattern.
-        # We can remove this once https://github.com/dtolnay/rust-toolchain/issues/180 is resolved
-        dtolnay/rust-toolchain: any
-  # dtolnay/rust-toolchain handles component installation, target addition, and
-  # override configuration beyond what a bare `rustup` invocation provides.
-  # See: https://github.com/zizmorcore/zizmor/issues/1817
-  superfluous-actions:
-    disable: true
--- a/.gitignore
+++ b/.gitignore
@@ -10,6 +10,7 @@ __pycache__/
 wasm-pack.log
 .idea/
 .envrc
+.python-version

 flame-graph.html
 flame.txt
@@ -27,4 +28,4 @@ Lib/site-packages/*
 Lib/test/data/*
 !Lib/test/data/README
 cpython/
-.claude/scheduled_tasks.lock
+
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -10,7 +10,7 @@ repos:
        priority: 0

  - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.15.12
+    rev: v0.15.7
    hooks:
      - id: ruff-format
        priority: 0
@@ -40,30 +40,17 @@ repos:
        types: [rust]
        priority: 0

-      - id: generate-rs-opcode-metadata
-        name: generate rust opcode metadata
-        entry: python tools/opcode_metadata/generate_rs_opcode_metadata.py
-        files: '^(crates/compiler-core/src/bytecode/instruction\.rs|tools/opcode_metadata/*)$'
+      - id: generate-opcode-metadata
+        name: generate opcode metadata
+        entry: python scripts/generate_opcode_metadata.py
+        files: '^(crates/compiler-core/src/bytecode/instruction\.rs|scripts/generate_opcode_metadata\.py)$'
        pass_filenames: false
        language: system
        require_serial: true
        priority: 1 # so rustfmt runs first
-        stages:
-          - manual
-
-      - id: generate-py-opcode-metadata
-        name: generate python opcode metadata
-        entry: python tools/opcode_metadata/generate_py_opcode_metadata.py
-        files: '^(crates/compiler-core/src/bytecode/instruction\.rs|tools/opcode_metadata/*)$'
-        pass_filenames: false
-        language: system
-        require_serial: true
-        priority: 1 # so rustfmt runs first
-        stages:
-          - manual

  - repo: https://github.com/streetsidesoftware/cspell-cli
-    rev: v10.0.0
+    rev: v9.7.0
    hooks:
      - id: cspell
        types: [rust]
@@ -77,7 +64,7 @@ repos:
        priority: 0

  - repo: https://github.com/rbubley/mirrors-prettier
-    rev: v3.8.3
+    rev: v3.8.1
    hooks:
      - id: prettier
        files: '^wasm/.*$'
--- a/.python-version
+++ b/.python-version
@@ -1 +0,0 @@
-3.14.5
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -38,12 +38,6 @@ RustPython is a Python 3 interpreter written in Rust, implementing Python 3.14.0
 - Always ask the user before performing any git operations that affect the remote repository
 - Commits can be created locally when requested, but pushing and PR creation require explicit approval

-**CRITICAL: Pre-commit Checks**
- Before creating ANY commit, you MUST run `prek run --all-files` (or `pre-commit run --all-files`) AND the full test suite. Both must pass — do not commit if either fails.
- Test commands are documented in the [Testing](#testing) section below. At minimum run `cargo test --workspace --exclude rustpython_wasm --exclude rustpython-venvlauncher`; if the change touches `extra_tests/snippets/` run `pytest -v` there too, and if it touches `Lib/` or interpreter behavior, run the relevant `cargo run --release -- -m test <module>` modules.
- If a hook auto-fixes files (e.g. `ruff-format`, `rustfmt`), re-stage the fixes, re-run `prek` until it reports a clean pass, then re-run the tests, then commit.
- NEVER bypass these checks with `--no-verify`, `--no-gpg-sign`, or by skipping tests "because the change is small". If a hook or test fails, fix the underlying issue and create a new commit — do not amend or force the failing commit through.
-
 ## Important Development Notes

 ### Running Python Code
@@ -87,35 +81,6 @@ The `Lib/` directory contains Python standard library files copied from the CPyt
  - `unittest.skip("TODO: RustPython <reason>")`
  - `unittest.expectedFailure` with `# TODO: RUSTPYTHON <reason>` comment

-#### Choosing the right marker
-
-When marking a test that fails on RustPython, prefer one of the following forms:
-
-```python
-@unittest.expectedFailure  # TODO: RUSTPYTHON; <reason>
-# or
-@unittest.expectedFailureIf(<condition>, "TODO: RUSTPYTHON; <reason>")
-```
-
-If the test would crash the interpreter (segfault, Rust panic, abort, infinite loop), use `skip` instead so the rest of the suite can still run:
-
-```python
-@unittest.skip("TODO: RUSTPYTHON; <reason>")
-# or
-@unittest.skipIf(<condition>, "TODO: RUSTPYTHON; <reason>")
-```
-
-**When to use which:**
-
- **Prefer `expectedFailure` / `expectedFailureIf`** by default. The test body still runs, so if RustPython is later fixed, the unexpected pass surfaces immediately and the decorator can be removed. Use the conditional `*If` form when the failure is environment-specific (e.g., a platform or build flag).
- **Use `skip` / `skipIf` only when running the test would take down the test process** — segfaults, Rust panics, aborts, or hangs that block subsequent tests. Skipping keeps the suite usable; `expectedFailure` cannot help here, because the test body still executes.
-
-To find WIP entries that are partly modified and may need follow-up:
-
-```bash
-grep -d recurse 'TODO: RUSTPYTHON' Lib/test/
-```
-
 ### Clean Build

 When you modify bytecode instructions, a full clean is required:
@@ -164,7 +129,6 @@ Run `./scripts/whats_left.py` to get a list of unimplemented methods, which is h

 - Do not delete or rewrite existing comments unless they are factually wrong or directly contradict the new code.
 - Do not add decorative section separators (e.g. `// -----------`, `// ===`, `/* *** */`). Use `///` doc-comments or short `//` comments only when they add value.
- Do not put `///` doc comments on items annotated with `#[pyattr]`, `#[pyclass]`, or `#[pyfunction]`. The derive macros pull authoritative docstrings from CPython via the `rustpython-doc` crate; a Rust doc comment overrides that source, and on `#[pyattr]` it is silently dropped.

 #### Avoid Duplicate Code in Branches

@@ -294,14 +258,9 @@ See DEVELOPMENT.md "CPython Version Upgrade Checklist" section.
 - Document that it requires PEP 695 support
 - Focus on tests that can be fixed through Rust code changes only

-## CI Workflows
-
-If you modify any file under `.github/workflows/`, the change must pass a [zizmor](https://docs.zizmor.sh/) scan in CI.
-
 ## Documentation

 - Check the [architecture document](/architecture/architecture.md) for a high-level overview
 - Read the [development guide](/DEVELOPMENT.md) for detailed setup instructions
 - Generate documentation with `cargo doc --no-deps --all`
 - Online documentation is available at [docs.rs/rustpython](https://docs.rs/rustpython/)
- [How to update test files](https://github.com/RustPython/RustPython/wiki/How-to-update-test-files#checkout-cpython-source-code-initial-setup) — guide for syncing test cases from upstream CPython into the `Lib/` directory
--- a/Cargo.lock
+++ b/Cargo.lock
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,8 +10,7 @@ repository.workspace = true
 license.workspace = true

 [features]
-capi = ["dep:rustpython-capi", "threading"]
-default = ["threading", "stdlib", "stdio", "importlib", "ssl-rustls-aws-lc", "host_env"]
+default = ["threading", "stdlib", "stdio", "importlib", "ssl-rustls", "host_env"]
 host_env = ["rustpython-vm/host_env", "rustpython-stdlib?/host_env"]
 importlib = ["rustpython-vm/importlib"]
 encodings = ["rustpython-vm/encodings"]
@@ -22,10 +21,8 @@ freeze-stdlib = ["stdlib", "rustpython-vm/freeze-stdlib", "rustpython-pylib?/fre
 jit = ["rustpython-vm/jit"]
 threading = ["rustpython-vm/threading", "rustpython-stdlib/threading"]
 sqlite = ["rustpython-stdlib/sqlite"]
-ssl = ["host_env"]
+ssl = []
 ssl-rustls = ["ssl", "rustpython-stdlib/ssl-rustls"]
-ssl-rustls-aws-lc = ["ssl-rustls", "dep:rustls", "rustls/aws_lc_rs"]
-ssl-rustls-aws-lc-fips = ["ssl-rustls-aws-lc", "rustls/fips"]
 ssl-openssl = ["ssl", "rustpython-stdlib/ssl-openssl"]
 ssl-vendor = ["ssl-openssl", "rustpython-stdlib/ssl-vendor"]
 tkinter = ["rustpython-stdlib/tkinter"]
@@ -34,23 +31,20 @@ tkinter = ["rustpython-stdlib/tkinter"]
 winresource = "0.1"

 [dependencies]
-rustpython-capi = { workspace = true, optional = true }
 rustpython-compiler = { workspace = true }
 rustpython-pylib = { workspace = true, optional = true }
 rustpython-stdlib = { workspace = true, optional = true, features = ["compiler"] }
 rustpython-vm = { workspace = true, features = ["compiler", "gc"] }

+cfg-if = { workspace = true }
 log = { workspace = true }
 flame = { workspace = true, optional = true }

 lexopt = "0.3"
-dirs = "6"
+dirs = { package = "dirs-next", version = "2.0" }
 env_logger = "0.11"
 flamescope = { version = "0.1.2", optional = true }

-rustls = { workspace = true, optional = true }
-rustls-graviola = { workspace = true, optional = true }
-
 [target.'cfg(windows)'.dependencies]
 libc = { workspace = true }

@@ -59,7 +53,7 @@ rustyline = { workspace = true }

 [dev-dependencies]
 criterion = { workspace = true }
-pyo3 = { workspace = true, features = ["auto-initialize"] }
+pyo3 = { version = "0.28.2", features = ["auto-initialize"] }
 rustpython-stdlib = { workspace = true }
 ruff_python_parser = { workspace = true }

@@ -75,17 +69,6 @@ harness = false
 name = "rustpython"
 path = "src/main.rs"

-[[example]]
-name = "custom_tls_providers"
-path = "examples/custom_tls_providers.rs"
-required-features = [
-    "rustls-graviola",
-    "rustls/ring",
-    "rustpython-pylib/freeze-stdlib",
-    "rustpython-stdlib/ssl-rustls",
-    "rustpython-vm/freeze-stdlib",
-]
-
 [profile.dev.package."*"]
 opt-level = 3

@@ -118,7 +101,7 @@ opt-level = 3
 lto = "thin"

 [patch.crates-io]
-parking_lot_core = { git = "https://github.com/youknowone/parking_lot", branch = "rustpython" }
+# parking_lot_core = { git = "https://github.com/youknowone/parking_lot", branch = "rustpython" }
 # REDOX START, Uncomment when you want to compile/check with redoxer
 # REDOX END

@@ -153,17 +136,15 @@ exclude = ["pymath"]
 version = "0.5.0"
 authors = ["RustPython Team"]
 edition = "2024"
-rust-version = "1.95.0"
+rust-version = "1.93.0"
 repository = "https://github.com/RustPython/RustPython"
 license = "MIT"

 [workspace.dependencies]
-rustpython-capi = { path = "crates/capi", version = "0.5.0" }
 rustpython-compiler-core = { path = "crates/compiler-core", version = "0.5.0" }
 rustpython-compiler = { path = "crates/compiler", version = "0.5.0" }
 rustpython-codegen = { path = "crates/codegen", version = "0.5.0" }
 rustpython-common = { path = "crates/common", version = "0.5.0" }
-rustpython-host_env = { path = "crates/host_env", version = "0.5.0" }
 rustpython-derive = { path = "crates/derive", version = "0.5.0" }
 rustpython-derive-impl = { path = "crates/derive-impl", version = "0.5.0" }
 rustpython-jit = { path = "crates/jit", version = "0.5.0" }
@@ -189,141 +170,70 @@ ruff_source_file = { package = "rustpython-ruff_source_file", version = "0.15.8"
 # ruff_text_size = { git = "https://github.com/astral-sh/ruff.git", rev = "c2a8815842f9dc5d24ec19385eae0f1a7188b0d9" }
 # ruff_source_file = { git = "https://github.com/astral-sh/ruff.git", rev = "c2a8815842f9dc5d24ec19385eae0f1a7188b0d9" }

-der = { version = "0.8", features = ["alloc", "oid", "pem", "zeroize"] }
 phf = { version = "0.13.1", default-features = false, features = ["macros"]}
-adler32 = "1.2.0"
-approx = "0.5.1"
+ahash = "0.8.12"
 ascii = "1.1"
-base64 = "0.22"
-blake2 = "0.10.4"
 bitflags = "2.11.0"
 bitflagset = "0.0.3"
 bstr = "1"
-bzip2 = "0.6"
-chrono = { version = "0.4.44", default-features = false, features = ["clock", "std"] }
-console_error_panic_hook = "0.1"
+cfg-if = "1.0"
+chrono = { version = "0.4.44", default-features = false, features = ["clock", "oldtime", "std"] }
 constant_time_eq = "0.4"
-cranelift = "0.131.2"
-cranelift-jit = "0.131.2"
-cranelift-module = "0.131.0"
-crc32fast = "1.3.2"
 criterion = { version = "0.8", features = ["html_reports"] }
 crossbeam-utils = "0.8.21"
-csv-core = "0.1.11"
-digest = "0.10.7"
-dns-lookup = "3.0"
-dyn-clone = "1.0.10"
-exitcode = "1.1.2"
 flame = "0.2.2"
-flamer = "0.5"
-flate2 = { version = "1.1.9", default-features = false }
-# Bump only when the openssl crate bumps it
-foreign-types-shared = "0.1"
-gethostname = "1.0.2"
-getrandom = { version = "0.4", features = ["std"] }
+getrandom = { version = "0.3", features = ["std"] }
 glob = "0.3"
-half = "2"
 hex = "0.4.3"
-hexf-parse = "0.2.1"
-hmac = "0.12"
-indexmap = { version = "2.14.0", features = ["std"] }
-insta = "1.47"
+indexmap = { version = "2.13.0", features = ["std"] }
+insta = "1.46"
 itertools = "0.14.0"
 is-macro = "0.3.7"
-js-sys = "0.3"
 junction = "1.4.2"
-lexical-parse-float = "1.0.6"
-libc = "0.2.186"
+libc = "0.2.183"
 libffi = "5"
-libloading = "0.9"
-liblzma = "0.4"
-liblzma-sys = "0.4"
-libsqlite3-sys = "0.37"
-libz-rs-sys = "0.6"
-lock_api = "0.4"
 log = "0.4.29"
-lz4_flex = "0.13"
-nix = { version = "0.31", features = ["fs", "user", "process", "term", "time", "signal", "ioctl", "socket", "sched", "zerocopy", "dir", "hostname", "net", "poll"] }
-mac_address = "1.1.3"
+nix = { version = "0.30", features = ["fs", "user", "process", "term", "time", "signal", "ioctl", "socket", "sched", "zerocopy", "dir", "hostname", "net", "poll"] }
 malachite-bigint = "0.9.1"
 malachite-q = "0.9.1"
 malachite-base = "0.9.1"
-md-5 = "0.10.1"
 memchr = "2.8.0"
-memmap2 = "0.9.10"
-mt19937 = "<=3.3"  # upgrade it once rand is upgraded
 num-complex = "0.4.6"
 num-integer = "0.1.46"
 num-traits = "0.2"
-num_cpus = "1.17.0"
 num_enum = { version = "0.7", default-features = false }
-oid-registry = "0.8"
-openssl = "0.10.80"
-openssl-sys = "0.9.110"
-openssl-probe = "0.2.1"
 optional = "0.5"
 parking_lot = "0.12.3"
 paste = "1.0.15"
-pbkdf2 = "0.12"
-pem-rfc7468 = "1.0"
-pkcs8 = "0.11"
 proc-macro2 = "1.0.105"
-psm = "0.1"
 pymath = { version = "0.2.0", features = ["mul_add", "malachite-bigint", "complex"] }
-pyo3 = "0.28"
 quote = "1.0.45"
 radium = "1.1.1"
-rand = "0.10"
+rand = "0.9"
 rand_core = { version = "0.9", features = ["os_rng"] }
-rapidhash = "4.4.1"
-result-like = "0.5.0"
-rustix = { version = "1.1", features = ["event", "param", "system"] }
-rustls = { version = "0.23.39", default-features = false }
-rustls-graviola = "0.3"
-rustls-native-certs = "0.8"
-rustls-pemfile = "2.2"
-rustls-platform-verifier = "0.7"
-rustyline = "18"
+rustix = { version = "1.1", features = ["event"] }
+rustyline = "17.0.1"
 serde = { package = "serde_core", version = "1.0.225", default-features = false, features = ["alloc"] }
 schannel = "0.1.29"
+scoped-tls = "1"
 scopeguard = "1"
-serde-wasm-bindgen = "0.6.5"
-sha-1 = "0.10.0"
-sha2 = "0.10.2"
-sha3 = "0.10.1"
-siphasher = "1"
-socket2 = "0.6.3"
 static_assertions = "1.1"
 strum = "0.28"
 strum_macros = "0.28"
 syn = "2"
-syn-ext = "0.5.0"
-system-configuration = "0.7.0"
-tcl-sys = { git = "https://github.com/arihant2math/tkinter.git", tag = "v0.2.0" }
-textwrap = { version = "0.16.2", default-features = false }
-termios = "0.3.3"
 thiserror = "2.0"
-timsort = "0.1.2"
-tk-sys = { git = "https://github.com/arihant2math/tkinter.git", tag = "v0.2.0" }
-icu_casemap = "2"
-icu_locale = "2"
-icu_properties = "2"
-icu_normalizer = "2"
-uuid = "1.23.1"
-ucd = "0.1.1"
+unicode-casing = "0.1.1"
+unic-char-property = "0.9.0"
+unic-normal = "0.9.0"
 unic-ucd-age = "0.9.0"
+unic-ucd-bidi = "0.9.0"
+unic-ucd-category = "0.9.0"
+unic-ucd-ident = "0.9.0"
 unicode_names2 = "2.0.0"
+unicode-bidi-mirroring = "0.4"
 widestring = "1.2.0"
 windows-sys = "0.61.2"
 wasm-bindgen = "0.2.106"
-wasm-bindgen-futures = "0.4"
-web-sys = "0.3"
-webpki-roots = "1.0"
-which = "8"
-x509-cert = "0.2.5"
-x509-parser = "0.18"
-xml = "1.2"
-writeable = "0.6"

 # Lints

@@ -331,61 +241,13 @@ writeable = "0.6"
 unsafe_code = "allow"
 unsafe_op_in_unsafe_fn = "deny"
 elided_lifetimes_in_paths = "warn"
-unreachable_pub = "warn"

 [workspace.lints.clippy]
-correctness = { level = "warn", priority = -2 }
-suspicious = { level = "warn", priority = -2 }
-perf = { level = "warn", priority = -2 }
-style = { level = "warn", priority = -2 }
-complexity = { level = "warn", priority = -2 }
-# pedantic = { level = "warn", priority = -2 } # TODO: Enable this
-
-missing_errors_doc = "allow" # Too many errors. No auto-fix available
-missing_panics_doc = "allow" # Too many errors. No auto-fix available
-match_same_arms = "allow" # Not always more readable
-if_not_else = "allow" # Not always more readable
-single_match_else = "allow"
-similar_names = "allow"
-
-# restriction lints
 alloc_instead_of_core = "warn"
-cfg_not_test = "warn"
-redundant_test_prefix = "warn"
 std_instead_of_alloc = "warn"
 std_instead_of_core = "warn"
-tests_outside_test_module = "warn"
-
-# nursery lints to enforce gradually
-debug_assert_with_mut_call = "warn"
-derive_partial_eq_without_eq = "warn"
-imprecise_flops = "warn"
-or_fun_call = "warn"
-redundant_clone = "warn"
-search_is_some = "warn"
-single_option_map = "warn"
-trait_duplication_in_bounds = "warn"
-unused_peekable = "warn"
-unused_rounding = "warn"
-use_self = "warn"
-useless_let_if_seq = "warn"
-
-# pedantic lints to enforce gradually
-cloned_instead_of_copied = "warn"
-collapsible_else_if = "warn"
-comparison_chain = "warn"
-explicit_into_iter_loop = "warn"
-explicit_iter_loop = "warn"
-filter_map_next = "warn"
-flat_map_option = "warn"
-format_collect = "warn"
-from_iter_instead_of_collect = "warn"
-inconsistent_struct_constructor = "warn"
-inefficient_to_string = "warn"
-manual_is_variant_and = "warn"
-map_unwrap_or = "warn"
-must_use_candidate = "warn"
-redundant_else = "warn"
-uninlined_format_args = "warn"
-unnecessary_wraps = "warn"
-unnested_or_patterns = "warn"
+perf = "warn"
+style = "warn"
+complexity = "warn"
+suspicious = "warn"
+correctness = "warn"
--- a/2
+++ b/2
@@ -1,6 +1,6 @@
 MIT License

-Copyright (c) 2026 RustPython Team
+Copyright (c) 2025 RustPython Team

 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
--- a/Lib/_android_support.py
+++ b/Lib/_android_support.py
@@ -168,13 +168,6 @@ class Logcat:
        # message.
        message = message.replace(b"\x00", b"\xc0\x80")

-        # On API level 30 and higher, Logcat will strip any number of leading
-        # newlines. This is visible in all `logcat` modes, even --binary. Work
-        # around this by adding a leading space, which shouldn't make any
-        # difference to the log's usability.
-        if message.startswith(b"\n"):
-            message = b" " + message
-
        with self._lock:
            now = time()
            self._bucket_level += (
--- a/Lib/_opcode_metadata.py
+++ b/Lib/_opcode_metadata.py
@@ -1,4 +1,4 @@
-# This file is generated by tools/opcode_metadata/generate_py_opcode_metadata.py
+# This file is generated by scripts/generate_opcode_metadata.py
 # for RustPython bytecode format (CPython 3.14 compatible opcode numbers).
 # Do not edit!

--- a/Lib/annotationlib.py
+++ b/Lib/annotationlib.py
@@ -47,7 +47,6 @@ _SLOTS = (
    "__cell__",
    "__owner__",
    "__stringifier_dict__",
-    "__resolved_str_cache__",
 )


@@ -95,7 +94,6 @@ class ForwardRef:
        # value later.
        self.__code__ = None
        self.__ast_node__ = None
-        self.__resolved_str_cache__ = None

    def __init_subclass__(cls, /, *args, **kwds):
        raise TypeError("Cannot subclass ForwardRef")
@@ -115,7 +113,7 @@ class ForwardRef:
        """
        match format:
            case Format.STRING:
-                return self.__resolved_str__
+                return self.__forward_arg__
            case Format.VALUE:
                is_forwardref_format = False
            case Format.FORWARDREF:
@@ -260,24 +258,6 @@ class ForwardRef:
            "Attempted to access '__forward_arg__' on an uninitialized ForwardRef"
        )

-    @property
-    def __resolved_str__(self):
-        # __forward_arg__ with any names from __extra_names__ replaced
-        # with the type_repr of the value they represent
-        if self.__resolved_str_cache__ is None:
-            resolved_str = self.__forward_arg__
-            names = self.__extra_names__
-
-            if names:
-                visitor = _ExtraNameFixer(names)
-                ast_expr = ast.parse(resolved_str, mode="eval").body
-                node = visitor.visit(ast_expr)
-                resolved_str = ast.unparse(node)
-
-            self.__resolved_str_cache__ = resolved_str
-
-        return self.__resolved_str_cache__
-
    @property
    def __forward_code__(self):
        if self.__code__ is not None:
@@ -341,7 +321,7 @@ class ForwardRef:
            extra.append(", is_class=True")
        if self.__owner__ is not None:
            extra.append(f", owner={self.__owner__!r}")
-        return f"ForwardRef({self.__resolved_str__!r}{''.join(extra)})"
+        return f"ForwardRef({self.__forward_arg__!r}{''.join(extra)})"


 _Template = type(t"")
@@ -377,7 +357,6 @@ class _Stringifier:
        self.__cell__ = cell
        self.__owner__ = owner
        self.__stringifier_dict__ = stringifier_dict
-        self.__resolved_str_cache__ = None  # Needed for ForwardRef

    def __convert_to_ast(self, other):
        if isinstance(other, _Stringifier):
@@ -940,7 +919,7 @@ def get_annotations(
    does not exist, the __annotate__ function is called. The
    FORWARDREF format uses __annotations__ if it exists and can be
    evaluated, and otherwise falls back to calling the __annotate__ function.
-    The STRING format tries __annotate__ first, and falls back to
+    The SOURCE format tries __annotate__ first, and falls back to
    using __annotations__, stringified using annotations_to_string().

    This function handles several details for you:
@@ -1058,26 +1037,13 @@ def get_annotations(
            obj_globals = obj_locals = unwrap = None

        if unwrap is not None:
-            # Use an id-based visited set to detect cycles in the __wrapped__
-            # and functools.partial.func chain (e.g. f.__wrapped__ = f).
-            # On cycle detection we stop and use whatever __globals__ we have
-            # found so far, mirroring the approach of inspect.unwrap().
-            _seen_ids = {id(unwrap)}
            while True:
                if hasattr(unwrap, "__wrapped__"):
-                    candidate = unwrap.__wrapped__
-                    if id(candidate) in _seen_ids:
-                        break
-                    _seen_ids.add(id(candidate))
-                    unwrap = candidate
+                    unwrap = unwrap.__wrapped__
                    continue
                if functools := sys.modules.get("functools"):
                    if isinstance(unwrap, functools.partial):
-                        candidate = unwrap.func
-                        if id(candidate) in _seen_ids:
-                            break
-                        _seen_ids.add(id(candidate))
-                        unwrap = candidate
+                        unwrap = unwrap.func
                        continue
                break
            if hasattr(unwrap, "__globals__"):
@@ -1184,14 +1150,3 @@ def _get_dunder_annotations(obj):
    if not isinstance(ann, dict):
        raise ValueError(f"{obj!r}.__annotations__ is neither a dict nor None")
    return ann
-
-
-class _ExtraNameFixer(ast.NodeTransformer):
-    """Fixer for __extra_names__ items in ForwardRef __repr__ and string evaluation"""
-    def __init__(self, extra_names):
-        self.extra_names = extra_names
-
-    def visit_Name(self, node: ast.Name):
-        if (new_name := self.extra_names.get(node.id, _sentinel)) is not _sentinel:
-            node = ast.Name(id=type_repr(new_name))
-        return node
--- a/Lib/argparse.py
+++ b/Lib/argparse.py
@@ -149,10 +149,6 @@ def _copy_items(items):
    return copy.copy(items)


-def _identity(value):
-    return value
-
-
 # ===============
 # Formatting Help
 # ===============
@@ -204,7 +200,7 @@ class HelpFormatter(object):
            self._decolor = decolor
        else:
            self._theme = get_theme(force_no_color=True).argparse
-            self._decolor = _identity
+            self._decolor = lambda text: text

    # ===============================
    # Section and indentation methods
@@ -1907,7 +1903,9 @@ class ArgumentParser(_AttributeHolder, _ActionsContainer):
        self._subparsers = None

        # register types
-        self.register('type', None, _identity)
+        def identity(string):
+            return string
+        self.register('type', None, identity)

        # add help argument if necessary
        # (using explicit default to override global argument_default)
@@ -2678,7 +2676,7 @@ class ArgumentParser(_AttributeHolder, _ActionsContainer):

        if value not in choices:
            args = {'value': str(value),
-                    'choices': ', '.join(repr(str(choice)) for choice in action.choices)}
+                    'choices': ', '.join(map(str, action.choices))}
            msg = _('invalid choice: %(value)r (choose from %(choices)s)')

            if self.suggest_on_error and isinstance(value, str):
--- a/Lib/collections/_defaultdict.py
+++ b/Lib/collections/_defaultdict.py
@@ -17,10 +17,6 @@ class defaultdict(dict):
            val = self.default_factory()
        else:
            raise KeyError(key)
-        # CPython parity: a recursive __missing__ via factory() may have
-        # already populated key; preserve that value instead of overwriting.
-        if key in self:
-            return self[key]
        self[key] = val
        return val

--- a/Lib/configparser.py
+++ b/Lib/configparser.py
@@ -315,15 +315,12 @@ class ParsingError(Error):

    def append(self, lineno, line):
        self.errors.append((lineno, line))
-        self.message += f'\n\t[line {lineno:2d}]: {line!r}'
+        self.message += '\n\t[line %2d]: %s' % (lineno, repr(line))

    def combine(self, others):
-        messages = [self.message]
        for other in others:
-            for lineno, line in other.errors:
-                self.errors.append((lineno, line))
-                messages.append(f'\n\t[line {lineno:2d}]: {line!r}')
-        self.message = "".join(messages)
+            for error in other.errors:
+                self.append(*error)
        return self

    @staticmethod
@@ -616,9 +613,7 @@ class RawConfigParser(MutableMapping):
        \]                                 # ]
        """
    _OPT_TMPL = r"""
-        (?P<option>                        # very permissive!
-            (?:(?!{delim})\S)*             # non-delimiter non-whitespace
-            (?:\s+(?:(?!{delim})\S)+)*)    # optionally more words
+        (?P<option>.*?)                    # very permissive!
        \s*(?P<vi>{delim})\s*              # any number of space/tab,
                                           # followed by any of the
                                           # allowed delimiters,
@@ -626,9 +621,7 @@ class RawConfigParser(MutableMapping):
        (?P<value>.*)$                     # everything up to eol
        """
    _OPT_NV_TMPL = r"""
-        (?P<option>                        # very permissive!
-            (?:(?!{delim})\S)*             # non-delimiter non-whitespace
-            (?:\s+(?:(?!{delim})\S)+)*)    # optionally more words
+        (?P<option>.*?)                    # very permissive!
        \s*(?:                             # any number of space/tab,
        (?P<vi>{delim})\s*                 # optionally followed by
                                           # any of the allowed
--- a/Lib/ctypes/init.py
+++ b/Lib/ctypes/init.py
@@ -470,8 +470,6 @@ class CDLL(object):
                if name and name.endswith(")") and ".a(" in name:
                    mode |= _os.RTLD_MEMBER | _os.RTLD_NOW
            self._name = name
-            if handle is not None:
-                return handle
            return _dlopen(name, mode)

    def __repr__(self):
--- a/Lib/ctypes/util.py
+++ b/Lib/ctypes/util.py
@@ -85,10 +85,15 @@ if os.name == "nt":
        wintypes.DWORD,
    )

-    # gh-145307: We defer loading psapi.dll until _get_module_handles is called.
-    # Loading additional DLLs at startup for functionality that may never be
-    # used is wasteful.
-    _enum_process_modules = None
+    _psapi = ctypes.WinDLL('psapi', use_last_error=True)
+    _enum_process_modules = _psapi["EnumProcessModules"]
+    _enum_process_modules.restype = wintypes.BOOL
+    _enum_process_modules.argtypes = (
+        wintypes.HANDLE,
+        ctypes.POINTER(wintypes.HMODULE),
+        wintypes.DWORD,
+        wintypes.LPDWORD,
+    )

    def _get_module_filename(module: wintypes.HMODULE):
        name = (wintypes.WCHAR * 32767)() # UNICODE_STRING_MAX_CHARS
@@ -96,19 +101,8 @@ if os.name == "nt":
            return name.value
        return None

-    def _get_module_handles():
-        global _enum_process_modules
-        if _enum_process_modules is None:
-            _psapi = ctypes.WinDLL('psapi', use_last_error=True)
-            _enum_process_modules = _psapi["EnumProcessModules"]
-            _enum_process_modules.restype = wintypes.BOOL
-            _enum_process_modules.argtypes = (
-                wintypes.HANDLE,
-                ctypes.POINTER(wintypes.HMODULE),
-                wintypes.DWORD,
-                wintypes.LPDWORD,
-            )

+    def _get_module_handles():
        process = _get_current_process()
        space_needed = wintypes.DWORD()
        n = 1024
--- a/Lib/dataclasses.py
+++ b/Lib/dataclasses.py
@@ -725,10 +725,10 @@ def _init_fn(fields, std_fields, kw_only_fields, frozen, has_post_init,
                        annotation_fields=annotation_fields)


-def _frozen_set_del_attr(cls, fields, func_builder):
-    locals = {'__class__': cls,
+def _frozen_get_del_attr(cls, fields, func_builder):
+    locals = {'cls': cls,
              'FrozenInstanceError': FrozenInstanceError}
-    condition = 'type(self) is __class__'
+    condition = 'type(self) is cls'
    if fields:
        condition += ' or name in {' + ', '.join(repr(f.name) for f in fields) + '}'

@@ -736,14 +736,14 @@ def _frozen_set_del_attr(cls, fields, func_builder):
                        ('self', 'name', 'value'),
                        (f'  if {condition}:',
                          '   raise FrozenInstanceError(f"cannot assign to field {name!r}")',
-                         f'  super(__class__, self).__setattr__(name, value)'),
+                         f'  super(cls, self).__setattr__(name, value)'),
                        locals=locals,
                        overwrite_error=True)
    func_builder.add_fn('__delattr__',
                        ('self', 'name'),
                        (f'  if {condition}:',
                          '   raise FrozenInstanceError(f"cannot delete field {name!r}")',
-                         f'  super(__class__, self).__delattr__(name)'),
+                         f'  super(cls, self).__delattr__(name)'),
                        locals=locals,
                        overwrite_error=True)

@@ -1199,7 +1199,7 @@ def _process_class(cls, init, repr, eq, order, unsafe_hash, frozen,
                            overwrite_error='Consider using functools.total_ordering')

    if frozen:
-        _frozen_set_del_attr(cls, field_list, func_builder)
+        _frozen_get_del_attr(cls, field_list, func_builder)

    # Decide if/how we're going to create a hash function.
    hash_action = _hash_action[bool(unsafe_hash),
@@ -1292,18 +1292,10 @@ def _update_func_cell_for__class__(f, oldcls, newcls):
        # This function doesn't reference __class__, so nothing to do.
        return False
    # Fix the cell to point to the new class, if it's already pointing
-    # at the old class.
+    # at the old class.  I'm not convinced that the "is oldcls" test
+    # is needed, but other than performance can't hurt.
    closure = f.__closure__[idx]
-
-    try:
-        contents = closure.cell_contents
-    except ValueError:
-        # Cell is empty
-        return False
-
-    # This check makes it so we avoid updating an incorrect cell if the
-    # class body contains a function that was defined in a different class.
-    if contents is oldcls:
+    if closure.cell_contents is oldcls:
        closure.cell_contents = newcls
        return True
    return False
--- a/Lib/email/init.py
+++ b/Lib/email/init.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2001 Python Software Foundation
+# Copyright (C) 2001-2007 Python Software Foundation
 # Author: Barry Warsaw
 # Contact: email-sig@python.org

--- a/Lib/email/_encoded_words.py
+++ b/Lib/email/_encoded_words.py
@@ -219,7 +219,7 @@ def encode(string, charset='utf-8', encoding=None, lang=''):

    """
    if charset == 'unknown-8bit':
-        bstring = string.encode('utf-8', 'surrogateescape')
+        bstring = string.encode('ascii', 'surrogateescape')
    else:
        bstring = string.encode(charset)
    if encoding is None:
--- a/Lib/email/_header_value_parser.py
+++ b/Lib/email/_header_value_parser.py
@@ -80,8 +80,7 @@ from email import utils
 # Useful constants and functions
 #

-_WSP = ' \t'
-WSP = set(_WSP)
+WSP = set(' \t')
 CFWS_LEADER = WSP | set('(')
 SPECIALS = set(r'()<>@,:;.\"[]')
 ATOM_ENDS = SPECIALS | WSP
@@ -102,12 +101,6 @@ def make_quoted_pairs(value):
    return str(value).replace('\\', '\\\\').replace('"', '\\"')


-def make_parenthesis_pairs(value):
-    """Escape parenthesis and backslash for use within a comment."""
-    return str(value).replace('\\', '\\\\') \
-        .replace('(', '\\(').replace(')', '\\)')
-
-
 def quote_string(value):
    escaped = make_quoted_pairs(value)
    return f'"{escaped}"'
@@ -639,11 +632,11 @@ class LocalPart(TokenList):
        for tok in self[0] + [DOT]:
            if tok.token_type == 'cfws':
                continue
-            if (last_is_tl and tok.token_type == 'dot' and last and
+            if (last_is_tl and tok.token_type == 'dot' and
                    last[-1].token_type == 'cfws'):
                res[-1] = TokenList(last[:-1])
            is_tl = isinstance(tok, TokenList)
-            if (is_tl and last.token_type == 'dot' and tok and
+            if (is_tl and last.token_type == 'dot' and
                    tok[0].token_type == 'cfws'):
                res.append(TokenList(tok[1:]))
            else:
@@ -881,12 +874,6 @@ class MessageID(MsgID):
 class InvalidMessageID(MessageID):
    token_type = 'invalid-message-id'

-class MessageIDList(TokenList):
-    token_type = 'message-id-list'
-
-    @property
-    def message_ids(self):
-        return [x for x in self if x.token_type=='msg-id']

 class Header(TokenList):
    token_type = 'header'
@@ -946,7 +933,7 @@ class WhiteSpaceTerminal(Terminal):
        return ' '

    def startswith_fws(self):
-        return self and self[0] in WSP
+        return True


 class ValueTerminal(Terminal):
@@ -1245,7 +1232,8 @@ def get_bare_quoted_string(value):
    bare_quoted_string = BareQuotedString()
    value = value[1:]
    if value and value[0] == '"':
-        return bare_quoted_string, value[1:]
+        token, value = get_qcontent(value)
+        bare_quoted_string.append(token)
    while value and value[0] != '"':
        if value[0] in WSP:
            token, value = get_fws(value)
@@ -2058,10 +2046,12 @@ def get_address_list(value):
                address_list.defects.append(errors.InvalidHeaderDefect(
                    "invalid address in address-list"))
        if value and value[0] != ',':
-            # Crap after address: add it to the address list
-            # as an invalid mailbox
+            # Crap after address; treat it as an invalid mailbox.
+            # The mailbox info will still be available.
+            mailbox = address_list[-1][0]
+            mailbox.token_type = 'invalid-mailbox'
            token, value = get_invalid_mailbox(value, ',')
-            address_list.append(Address([token]))
+            mailbox.extend(token)
            address_list.defects.append(errors.InvalidHeaderDefect(
                "invalid address in address-list"))
        if value:  # Must be a , at this point.
@@ -2181,32 +2171,6 @@ def parse_message_id(value):

    return message_id

-def parse_message_ids(value):
-    """in-reply-to     =   "In-Reply-To:" 1*msg-id CRLF
-       references      =   "References:" 1*msg-id CRLF
-    """
-    message_id_list = MessageIDList()
-    while value:
-        if value[0] == ',':
-            # message id list separated with commas - this is invalid,
-            # but happens rather frequently in the wild
-            message_id_list.defects.append(
-                errors.InvalidHeaderDefect("comma in msg-id list"))
-            message_id_list.append(
-                WhiteSpaceTerminal(' ', 'invalid-comma-replacement'))
-            value = value[1:]
-            continue
-        try:
-            token, value = get_msg_id(value)
-            message_id_list.append(token)
-        except errors.HeaderParseError as ex:
-            token = get_unstructured(value)
-            message_id_list.append(InvalidMessageID(token))
-            message_id_list.defects.append(
-                errors.InvalidHeaderDefect("Invalid msg-id: {!r}".format(ex)))
-            break
-    return message_id_list
-
 #
 # XXX: As I begin to add additional header parsers, I'm realizing we probably
 # have two level of parser routines: the get_XXX methods that get a token in
@@ -2824,12 +2788,8 @@ def _steal_trailing_WSP_if_exists(lines):
    if lines and lines[-1] and lines[-1][-1] in WSP:
        wsp = lines[-1][-1]
        lines[-1] = lines[-1][:-1]
-        # gh-142006: if the line is now empty, remove it entirely.
-        if not lines[-1]:
-            lines.pop()
    return wsp

-
 def _refold_parse_tree(parse_tree, *, policy):
    """Return string of contents of parse_tree folded according to RFC rules.

@@ -2838,9 +2798,11 @@ def _refold_parse_tree(parse_tree, *, policy):
    maxlen = policy.max_line_length or sys.maxsize
    encoding = 'utf-8' if policy.utf8 else 'us-ascii'
    lines = ['']  # Folded lines to be output
-    last_word_is_ew = False
-    last_ew = None  # if there is an encoded word in the last line of lines,
-                    # points to the encoded word's first character
+    leading_whitespace = ''  # When we have whitespace between two encoded
+                             # words, we may need to encode the whitespace
+                             # at the beginning of the second word.
+    last_ew = None  # Points to the last encoded character if there's an ew on
+                    # the line
    last_charset = None
    wrap_as_ew_blocked = 0
    want_encoding = False  # This is set to True if we need to encode this part
@@ -2875,7 +2837,6 @@ def _refold_parse_tree(parse_tree, *, policy):
        if part.token_type == 'mime-parameters':
            # Mime parameter folding (using RFC2231) is extra special.
            _fold_mime_parameters(part, lines, maxlen, encoding)
-            last_word_is_ew = False
            continue

        if want_encoding and not wrap_as_ew_blocked:
@@ -2892,7 +2853,6 @@ def _refold_parse_tree(parse_tree, *, policy):
                            # XXX what if encoded_part has no leading FWS?
                            lines.append(newline)
                        lines[-1] += encoded_part
-                        last_word_is_ew = False
                        continue
                # Either this is not a major syntactic break, so we don't
                # want it on a line by itself even if it fits, or it
@@ -2911,16 +2871,11 @@ def _refold_parse_tree(parse_tree, *, policy):
                    (last_charset == 'unknown-8bit' or
                     last_charset == 'utf-8' and charset != 'us-ascii')):
                    last_ew = None
-                last_ew = _fold_as_ew(
-                    tstr,
-                    lines,
-                    maxlen,
-                    last_ew,
-                    part.ew_combine_allowed,
-                    charset,
-                    last_word_is_ew,
-                )
-                last_word_is_ew = True
+                last_ew = _fold_as_ew(tstr, lines, maxlen, last_ew,
+                                      part.ew_combine_allowed, charset, leading_whitespace)
+                # This whitespace has been added to the lines in _fold_as_ew()
+                # so clear it now.
+                leading_whitespace = ''
                last_charset = charset
                want_encoding = False
                continue
@@ -2933,19 +2888,28 @@ def _refold_parse_tree(parse_tree, *, policy):

        if len(tstr) <= maxlen - len(lines[-1]):
            lines[-1] += tstr
-            last_word_is_ew = last_word_is_ew and not bool(tstr.strip(_WSP))
            continue

        # This part is too long to fit.  The RFC wants us to break at
        # "major syntactic breaks", so unless we don't consider this
        # to be one, check if it will fit on the next line by itself.
+        leading_whitespace = ''
        if (part.syntactic_break and
                len(tstr) + 1 <= maxlen):
            newline = _steal_trailing_WSP_if_exists(lines)
            if newline or part.startswith_fws():
+                # We're going to fold the data onto a new line here.  Due to
+                # the way encoded strings handle continuation lines, we need to
+                # be prepared to encode any whitespace if the next line turns
+                # out to start with an encoded word.
                lines.append(newline + tstr)
-                last_word_is_ew = (last_word_is_ew
-                                   and not bool(lines[-1].strip(_WSP)))
+
+                whitespace_accumulator = []
+                for char in lines[-1]:
+                    if char not in WSP:
+                        break
+                    whitespace_accumulator.append(char)
+                leading_whitespace = ''.join(whitespace_accumulator)
                last_ew = None
                continue
        if not hasattr(part, 'encode'):
@@ -2960,13 +2924,6 @@ def _refold_parse_tree(parse_tree, *, policy):
                    [ValueTerminal(make_quoted_pairs(p), 'ptext')
                     for p in newparts] +
                    [ValueTerminal('"', 'ptext')])
-            if part.token_type == 'comment':
-                newparts = (
-                    [ValueTerminal('(', 'ptext')] +
-                    [ValueTerminal(make_parenthesis_pairs(p), 'ptext')
-                     if p.token_type == 'ptext' else p
-                     for p in newparts] +
-                    [ValueTerminal(')', 'ptext')])
            if not part.as_ew_allowed:
                wrap_as_ew_blocked += 1
                newparts.append(end_ew_not_allowed)
@@ -2985,11 +2942,10 @@ def _refold_parse_tree(parse_tree, *, policy):
        else:
            # We can't fold it onto the next line either...
            lines[-1] += tstr
-        last_word_is_ew = last_word_is_ew and not bool(tstr.strip(_WSP))

    return policy.linesep.join(lines) + policy.linesep

-def _fold_as_ew(to_encode, lines, maxlen, last_ew, ew_combine_allowed, charset, last_word_is_ew):
+def _fold_as_ew(to_encode, lines, maxlen, last_ew, ew_combine_allowed, charset, leading_whitespace):
    """Fold string to_encode into lines as encoded word, combining if allowed.
    Return the new value for last_ew, or None if ew_combine_allowed is False.

@@ -3004,16 +2960,6 @@ def _fold_as_ew(to_encode, lines, maxlen, last_ew, ew_combine_allowed, charset,
        to_encode = str(
            get_unstructured(lines[-1][last_ew:] + to_encode))
        lines[-1] = lines[-1][:last_ew]
-    elif last_word_is_ew:
-        # If we are following up an encoded word with another encoded word,
-        # any white space between the two will be ignored when decoded.
-        # Therefore, we encode all to-be-displayed whitespace in the second
-        # encoded word.
-        len_without_wsp = len(lines[-1].rstrip(_WSP))
-        leading_whitespace = lines[-1][len_without_wsp:]
-        lines[-1] = (lines[-1][:len_without_wsp]
-                     + (' ' if leading_whitespace else ''))
-        to_encode = leading_whitespace + to_encode
    elif to_encode[0] in WSP:
        # We're joining this to non-encoded text, so don't encode
        # the leading blank.
@@ -3042,13 +2988,20 @@ def _fold_as_ew(to_encode, lines, maxlen, last_ew, ew_combine_allowed, charset,

    while to_encode:
        remaining_space = maxlen - len(lines[-1])
-        text_space = remaining_space - chrome_len
+        text_space = remaining_space - chrome_len - len(leading_whitespace)
        if text_space <= 0:
-            newline = _steal_trailing_WSP_if_exists(lines)
-            lines.append(newline or ' ')
-            new_last_ew = len(lines[-1])
+            lines.append(' ')
            continue

+        # If we are at the start of a continuation line, prepend whitespace
+        # (we only want to do this when the line starts with an encoded word
+        # but if we're folding in this helper function, then we know that we
+        # are going to be writing out an encoded word.)
+        if len(lines) > 1 and len(lines[-1]) == 1 and leading_whitespace:
+            encoded_word = _ew.encode(leading_whitespace, charset=encode_as)
+            lines[-1] += encoded_word
+            leading_whitespace = ''
+
        to_encode_word = to_encode[:text_space]
        encoded_word = _ew.encode(to_encode_word, charset=encode_as)
        excess = len(encoded_word) - remaining_space
@@ -3060,6 +3013,7 @@ def _fold_as_ew(to_encode, lines, maxlen, last_ew, ew_combine_allowed, charset,
            excess = len(encoded_word) - remaining_space
        lines[-1] += encoded_word
        to_encode = to_encode[len(to_encode_word):]
+        leading_whitespace = ''

        if to_encode:
            lines.append(' ')
--- a/Lib/email/_parseaddr.py
+++ b/Lib/email/_parseaddr.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2002 Python Software Foundation
+# Copyright (C) 2002-2007 Python Software Foundation
 # Contact: email-sig@python.org

 """Email address parsing code.
@@ -225,7 +225,7 @@ class AddrlistClass:
    def __init__(self, field):
        """Initialize a new instance.

-        'field' is an unparsed address header field, containing
+        `field' is an unparsed address header field, containing
        one or more addresses.
        """
        self.specials = '()<>@,:;.\"[]'
@@ -426,14 +426,14 @@ class AddrlistClass:
    def getdelimited(self, beginchar, endchars, allowcomments=True):
        """Parse a header fragment delimited by special characters.

-        'beginchar' is the start character for the fragment.
-        If self is not looking at an instance of 'beginchar' then
+        `beginchar' is the start character for the fragment.
+        If self is not looking at an instance of `beginchar' then
        getdelimited returns the empty string.

-        'endchars' is a sequence of allowable end-delimiting characters.
+        `endchars' is a sequence of allowable end-delimiting characters.
        Parsing stops when one of these is encountered.

-        If 'allowcomments' is non-zero, embedded RFC 2822 comments are allowed
+        If `allowcomments' is non-zero, embedded RFC 2822 comments are allowed
        within the parsed fragment.
        """
        if self.field[self.pos] != beginchar:
@@ -477,7 +477,7 @@ class AddrlistClass:

        Optional atomends specifies a different set of end token delimiters
        (the default is to use self.atomends).  This is used e.g. in
-        getphraselist() since phrase endings must not include the '.' (which
+        getphraselist() since phrase endings must not include the `.' (which
        is legal in phrases)."""
        atomlist = ['']
        if atomends is None:
--- a/Lib/email/_policybase.py
+++ b/Lib/email/_policybase.py
@@ -4,7 +4,6 @@ Allows fine grained feature control of how the package parses and emits data.
 """

 import abc
-import re
 from email import header
 from email import charset as _charset
 from email.utils import _has_surrogates
@@ -15,14 +14,6 @@ __all__ = [
    'compat32',
    ]

-# validation regex from RFC 5322, equivalent to pattern re.compile("[!-9;-~]+$")
-valid_header_name_re = re.compile("[\041-\071\073-\176]+$")
-
-def validate_header_name(name):
-    # Validate header name according to RFC 5322
-    if not valid_header_name_re.match(name):
-        raise ValueError(
-            f"Header field name contains invalid characters: {name!r}")

 class _PolicyBase:

@@ -159,7 +150,7 @@ class Policy(_PolicyBase, metaclass=abc.ABCMeta):
                           wrapping is done.  Default is 78.

    mangle_from_        -- a flag that, when True escapes From_ lines in the
-                           body of the message by putting a '>' in front of
+                           body of the message by putting a `>' in front of
                           them. This is used when the message is being
                           serialized by a generator. Default: False.

@@ -323,7 +314,6 @@ class Compat32(Policy):
        """+
        The name and value are returned unmodified.
        """
-        validate_header_name(name)
        return (name, value)

    def header_fetch_parse(self, name, value):
--- a/Lib/email/base64mime.py
+++ b/Lib/email/base64mime.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2002 Python Software Foundation
+# Copyright (C) 2002-2007 Python Software Foundation
 # Author: Ben Gertzfield
 # Contact: email-sig@python.org

@@ -15,7 +15,7 @@ This module provides an interface to encode and decode both headers and bodies
 with Base64 encoding.

 RFC 2045 defines a method for including character set information in an
-'encoded-word' in a header.  This method is commonly used for 8-bit real names
+`encoded-word' in a header.  This method is commonly used for 8-bit real names
 in To:, From:, Cc:, etc. fields, as well as Subject: lines.

 This module does not do the line wrapping or end-of-line character conversion
--- a/Lib/email/charset.py
+++ b/Lib/email/charset.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2001 Python Software Foundation
+# Copyright (C) 2001-2007 Python Software Foundation
 # Author: Ben Gertzfield, Barry Warsaw
 # Contact: email-sig@python.org

@@ -175,7 +175,7 @@ class Charset:
    module expose the following information about a character set:

    input_charset: The initial character set specified.  Common aliases
-                   are converted to their 'official' email names (e.g. latin_1
+                   are converted to their `official' email names (e.g. latin_1
                   is converted to iso-8859-1).  Defaults to 7-bit us-ascii.

    header_encoding: If the character set must be encoded before it can be
@@ -245,7 +245,7 @@ class Charset:
    def get_body_encoding(self):
        """Return the content-transfer-encoding used for body encoding.

-        This is either the string 'quoted-printable' or 'base64' depending on
+        This is either the string `quoted-printable' or `base64' depending on
        the encoding used, or it is a function in which case you should call
        the function with a single argument, the Message object being
        encoded.  The function should then set the Content-Transfer-Encoding
--- a/Lib/email/encoders.py
+++ b/Lib/email/encoders.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2001 Python Software Foundation
+# Copyright (C) 2001-2006 Python Software Foundation
 # Author: Barry Warsaw
 # Contact: email-sig@python.org

--- a/Lib/email/errors.py
+++ b/Lib/email/errors.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2001 Python Software Foundation
+# Copyright (C) 2001-2006 Python Software Foundation
 # Author: Barry Warsaw
 # Contact: email-sig@python.org

--- a/Lib/email/feedparser.py
+++ b/Lib/email/feedparser.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2004 Python Software Foundation
+# Copyright (C) 2004-2006 Python Software Foundation
 # Authors: Baxter, Wouters and Warsaw
 # Contact: email-sig@python.org

@@ -30,7 +30,7 @@ from io import StringIO

 NLCRE = re.compile(r'\r\n|\r|\n')
 NLCRE_bol = re.compile(r'(\r\n|\r|\n)')
-NLCRE_eol = re.compile(r'(\r\n|\r|\n)\z')
+NLCRE_eol = re.compile(r'(\r\n|\r|\n)\Z')
 NLCRE_crack = re.compile(r'(\r\n|\r|\n)')
 # RFC 5322 section 3.6.8 Optional fields.  ftext is %d33-57 / %d59-126, Any character
 # except controls, SP, and ":".
@@ -504,9 +504,10 @@ class FeedParser:
                    self._input.unreadline(line)
                    return
                else:
-                    # Weirdly placed unix-from line.
+                    # Weirdly placed unix-from line.  Note this as a defect
+                    # and ignore it.
                    defect = errors.MisplacedEnvelopeHeaderDefect(line)
-                    self.policy.handle_defect(self._cur, defect)
+                    self._cur.defects.append(defect)
                    continue
            # Split the line on the colon separating field name from value.
            # There will always be a colon, because if there wasn't the part of
@@ -518,7 +519,7 @@ class FeedParser:
            # message. Track the error but keep going.
            if i == 0:
                defect = errors.InvalidHeaderDefect("Missing header name.")
-                self.policy.handle_defect(self._cur, defect)
+                self._cur.defects.append(defect)
                continue

            assert i>0, "_parse_headers fed line with no : and no leading WS"
--- a/Lib/email/generator.py
+++ b/Lib/email/generator.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2001 Python Software Foundation
+# Copyright (C) 2001-2010 Python Software Foundation
 # Author: Barry Warsaw
 # Contact: email-sig@python.org

@@ -22,7 +22,6 @@ NL = '\n'  # XXX: no longer used by the code below.
 NLCRE = re.compile(r'\r\n|\r|\n')
 fcre = re.compile(r'^From ', re.MULTILINE)
 NEWLINE_WITHOUT_FWSP = re.compile(r'\r\n[^ \t]|\r[^ \n\t]|\n[^ \t]')
-NEWLINE_WITHOUT_FWSP_BYTES = re.compile(br'\r\n[^ \t]|\r[^ \n\t]|\n[^ \t]')


 class Generator:
@@ -44,7 +43,7 @@ class Generator:

        Optional mangle_from_ is a flag that, when True (the default if policy
        is not set), escapes From_ lines in the body of the message by putting
-        a '>' in front of them.
+        a `>' in front of them.

        Optional maxheaderlen specifies the longest length for a non-continued
        header.  When a header line is longer (in characters, with tabs
@@ -77,7 +76,7 @@ class Generator:

        unixfrom is a flag that forces the printing of a Unix From_ delimiter
        before the first object in the message tree.  If the original message
-        has no From_ delimiter, a 'standard' one is crafted.  By default, this
+        has no From_ delimiter, a `standard' one is crafted.  By default, this
        is False to inhibit the printing of any From_ delimiter.

        Note that for subobjects, no From_ line is printed.
@@ -228,7 +227,7 @@ class Generator:
            folded = self.policy.fold(h, v)
            if self.policy.verify_generated_headers:
                linesep = self.policy.linesep
-                if not folded.endswith(linesep):
+                if not folded.endswith(self.policy.linesep):
                    raise HeaderWriteError(
                        f'folded header does not end with {linesep!r}: {folded!r}')
                if NEWLINE_WITHOUT_FWSP.search(folded.removesuffix(linesep)):
@@ -392,7 +391,7 @@ class Generator:
        b = boundary
        counter = 0
        while True:
-            cre = cls._compile_re('^--' + re.escape(b) + '(--)?\r?$', re.MULTILINE)
+            cre = cls._compile_re('^--' + re.escape(b) + '(--)?$', re.MULTILINE)
            if not cre.search(text):
                break
            b = boundary + '.' + str(counter)
@@ -430,16 +429,7 @@ class BytesGenerator(Generator):
        # This is almost the same as the string version, except for handling
        # strings with 8bit bytes.
        for h, v in msg.raw_items():
-            folded = self.policy.fold_binary(h, v)
-            if self.policy.verify_generated_headers:
-                linesep = self.policy.linesep.encode()
-                if not folded.endswith(linesep):
-                    raise HeaderWriteError(
-                        f'folded header does not end with {linesep!r}: {folded!r}')
-                if NEWLINE_WITHOUT_FWSP_BYTES.search(folded.removesuffix(linesep)):
-                    raise HeaderWriteError(
-                        f'folded header contains newline: {folded!r}')
-            self._fp.write(folded)
+            self._fp.write(self.policy.fold_binary(h, v))
        # A blank line always separates headers from body
        self.write(self._NL)

@@ -477,7 +467,7 @@ class DecodedGenerator(Generator):
        argument is allowed.

        Walks through all subparts of a message.  If the subpart is of main
-        type 'text', then it prints the decoded payload of the subpart.
+        type `text', then it prints the decoded payload of the subpart.

        Otherwise, fmt is a format string that is used instead of the message
        payload.  fmt is expanded with the following keywords (in
--- a/Lib/email/header.py
+++ b/Lib/email/header.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2002 Python Software Foundation
+# Copyright (C) 2002-2007 Python Software Foundation
 # Author: Ben Gertzfield, Barry Warsaw
 # Contact: email-sig@python.org

@@ -201,7 +201,7 @@ class Header:

        The maximum line length can be specified explicitly via maxlinelen. For
        splitting the first line to a shorter value (to account for the field
-        header which isn't included in s, e.g. 'Subject') pass in the name of
+        header which isn't included in s, e.g. `Subject') pass in the name of
        the field in header_name.  The default maxlinelen is 78 as recommended
        by RFC 2822.

@@ -285,7 +285,7 @@ class Header:
        output codec of the charset.  If the string cannot be encoded to the
        output codec, a UnicodeError will be raised.

-        Optional 'errors' is passed as the errors argument to the decode
+        Optional `errors' is passed as the errors argument to the decode
        call if s is a byte string.
        """
        if charset is None:
@@ -335,7 +335,7 @@ class Header:

        Optional splitchars is a string containing characters which should be
        given extra weight by the splitting algorithm during normal header
-        wrapping.  This is in very rough support of RFC 2822's 'higher level
+        wrapping.  This is in very rough support of RFC 2822's `higher level
        syntactic breaks':  split points preceded by a splitchar are preferred
        during line splitting, with the characters preferred in the order in
        which they appear in the string.  Space and tab may be included in the
--- a/Lib/email/headerregistry.py
+++ b/Lib/email/headerregistry.py
@@ -534,18 +534,6 @@ class MessageIDHeader:
        kwds['defects'].extend(parse_tree.all_defects)


-class ReferencesHeader:
-
-    max_count = 1
-    value_parser = staticmethod(parser.parse_message_ids)
-
-    @classmethod
-    def parse(cls, value, kwds):
-        kwds['parse_tree'] = parse_tree = cls.value_parser(value)
-        kwds['decoded'] = str(parse_tree)
-        kwds['defects'].extend(parse_tree.all_defects)
-
-
 # The header factory #

 _default_header_map = {
@@ -569,8 +557,6 @@ _default_header_map = {
    'content-disposition':          ContentDispositionHeader,
    'content-transfer-encoding':    ContentTransferEncodingHeader,
    'message-id':                   MessageIDHeader,
-    'in-reply-to':                  ReferencesHeader,
-    'references':                   ReferencesHeader,
    }

 class HeaderRegistry:
--- a/Lib/email/iterators.py
+++ b/Lib/email/iterators.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2001 Python Software Foundation
+# Copyright (C) 2001-2006 Python Software Foundation
 # Author: Barry Warsaw
 # Contact: email-sig@python.org

@@ -43,8 +43,8 @@ def body_line_iterator(msg, decode=False):
 def typed_subpart_iterator(msg, maintype='text', subtype=None):
    """Iterate over the subparts with a given MIME type.

-    Use 'maintype' as the main MIME type to match against; this defaults to
-    "text".  Optional 'subtype' is the MIME subtype to match against; if
+    Use `maintype' as the main MIME type to match against; this defaults to
+    "text".  Optional `subtype' is the MIME subtype to match against; if
    omitted, only the main type is matched.
    """
    for subpart in msg.walk():
--- a/Lib/email/message.py
+++ b/Lib/email/message.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2001 Python Software Foundation
+# Copyright (C) 2001-2007 Python Software Foundation
 # Author: Barry Warsaw
 # Contact: email-sig@python.org

@@ -21,7 +21,7 @@ Charset = _charset.Charset

 SEMISPACE = '; '

-# Regular expression that matches 'special' characters in parameters, the
+# Regular expression that matches `special' characters in parameters, the
 # existence of which force quoting of the parameter value.
 tspecials = re.compile(r'[ \(\)<>@,;:\\"/\[\]\?=]')

@@ -147,7 +147,7 @@ class Message:
    multipart or a message/rfc822), then the payload is a list of Message
    objects, otherwise it is a string.

-    Message objects implement part of the 'mapping' interface, which assumes
+    Message objects implement part of the `mapping' interface, which assumes
    there is exactly one occurrence of the header per message.  Some headers
    do in fact appear multiple times (e.g. Received) and for those headers,
    you must use the explicit API to set or get all the headers.  Not all of
@@ -609,7 +609,7 @@ class Message:
        """Return the message's content type.

        The returned string is coerced to lower case of the form
-        'maintype/subtype'.  If there was no Content-Type header in the
+        `maintype/subtype'.  If there was no Content-Type header in the
        message, the default type as given by get_default_type() will be
        returned.  Since according to RFC 2045, messages always have a default
        type this will always return a value.
@@ -632,7 +632,7 @@ class Message:
    def get_content_maintype(self):
        """Return the message's main content type.

-        This is the 'maintype' part of the string returned by
+        This is the `maintype' part of the string returned by
        get_content_type().
        """
        ctype = self.get_content_type()
@@ -641,14 +641,14 @@ class Message:
    def get_content_subtype(self):
        """Returns the message's sub-content type.

-        This is the 'subtype' part of the string returned by
+        This is the `subtype' part of the string returned by
        get_content_type().
        """
        ctype = self.get_content_type()
        return ctype.split('/')[1]

    def get_default_type(self):
-        """Return the 'default' content type.
+        """Return the `default' content type.

        Most messages have a default content type of text/plain, except for
        messages that are subparts of multipart/digest containers.  Such
@@ -657,7 +657,7 @@ class Message:
        return self._default_type

    def set_default_type(self, ctype):
-        """Set the 'default' content type.
+        """Set the `default' content type.

        ctype should be either "text/plain" or "message/rfc822", although this
        is not enforced.  The default content type is not stored in the
@@ -690,8 +690,8 @@ class Message:
        """Return the message's Content-Type parameters, as a list.

        The elements of the returned list are 2-tuples of key/value pairs, as
-        split on the '=' sign.  The left hand side of the '=' is the key,
-        while the right hand side is the value.  If there is no '=' sign in
+        split on the `=' sign.  The left hand side of the `=' is the key,
+        while the right hand side is the value.  If there is no `=' sign in
        the parameter the value is the empty string.  The value is as
        described in the get_param() method.

@@ -851,9 +851,9 @@ class Message:
        """Return the filename associated with the payload if present.

        The filename is extracted from the Content-Disposition header's
-        'filename' parameter, and it is unquoted.  If that header is missing
-        the 'filename' parameter, this method falls back to looking for the
-        'name' parameter.
+        `filename' parameter, and it is unquoted.  If that header is missing
+        the `filename' parameter, this method falls back to looking for the
+        `name' parameter.
        """
        missing = object()
        filename = self.get_param('filename', missing, 'content-disposition')
@@ -866,7 +866,7 @@ class Message:
    def get_boundary(self, failobj=None):
        """Return the boundary associated with the payload if present.

-        The boundary is extracted from the Content-Type header's 'boundary'
+        The boundary is extracted from the Content-Type header's `boundary'
        parameter, and it is unquoted.
        """
        missing = object()
--- a/Lib/email/mime/application.py
+++ b/Lib/email/mime/application.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2001 Python Software Foundation
+# Copyright (C) 2001-2006 Python Software Foundation
 # Author: Keith Dart
 # Contact: email-sig@python.org

--- a/Lib/email/mime/audio.py
+++ b/Lib/email/mime/audio.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2001 Python Software Foundation
+# Copyright (C) 2001-2007 Python Software Foundation
 # Author: Anthony Baxter
 # Contact: email-sig@python.org

--- a/Lib/email/mime/base.py
+++ b/Lib/email/mime/base.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2001 Python Software Foundation
+# Copyright (C) 2001-2006 Python Software Foundation
 # Author: Barry Warsaw
 # Contact: email-sig@python.org

--- a/Lib/email/mime/image.py
+++ b/Lib/email/mime/image.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2001 Python Software Foundation
+# Copyright (C) 2001-2006 Python Software Foundation
 # Author: Barry Warsaw
 # Contact: email-sig@python.org

--- a/Lib/email/mime/message.py
+++ b/Lib/email/mime/message.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2001 Python Software Foundation
+# Copyright (C) 2001-2006 Python Software Foundation
 # Author: Barry Warsaw
 # Contact: email-sig@python.org

--- a/Lib/email/mime/multipart.py
+++ b/Lib/email/mime/multipart.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2002 Python Software Foundation
+# Copyright (C) 2002-2006 Python Software Foundation
 # Author: Barry Warsaw
 # Contact: email-sig@python.org

@@ -21,7 +21,7 @@ class MIMEMultipart(MIMEBase):
        Content-Type and MIME-Version headers.

        _subtype is the subtype of the multipart content type, defaulting to
-        'mixed'.
+        `mixed'.

        boundary is the multipart boundary string.  By default it is
        calculated as needed.
--- a/Lib/email/mime/nonmultipart.py
+++ b/Lib/email/mime/nonmultipart.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2002 Python Software Foundation
+# Copyright (C) 2002-2006 Python Software Foundation
 # Author: Barry Warsaw
 # Contact: email-sig@python.org

--- a/Lib/email/mime/text.py
+++ b/Lib/email/mime/text.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2001 Python Software Foundation
+# Copyright (C) 2001-2006 Python Software Foundation
 # Author: Barry Warsaw
 # Contact: email-sig@python.org

--- a/Lib/email/parser.py
+++ b/Lib/email/parser.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2001 Python Software Foundation
+# Copyright (C) 2001-2007 Python Software Foundation
 # Author: Barry Warsaw, Thomas Wouters, Anthony Baxter
 # Contact: email-sig@python.org

--- a/Lib/email/policy.py
+++ b/Lib/email/policy.py
@@ -4,13 +4,7 @@ code that adds all the email6 features.

 import re
 import sys
-from email._policybase import (
-    Compat32,
-    Policy,
-    _extend_docstrings,
-    compat32,
-    validate_header_name
-)
+from email._policybase import Policy, Compat32, compat32, _extend_docstrings
 from email.utils import _has_surrogates
 from email.headerregistry import HeaderRegistry as HeaderRegistry
 from email.contentmanager import raw_data_manager
@@ -144,7 +138,6 @@ class EmailPolicy(Policy):
        CR or LF characters.

        """
-        validate_header_name(name)
        if hasattr(value, 'name') and value.name.lower() == name.lower():
            return (name, value)
        if isinstance(value, str) and len(value.splitlines())>1:
--- a/Lib/email/quoprimime.py
+++ b/Lib/email/quoprimime.py
@@ -1,11 +1,11 @@
-# Copyright (C) 2001 Python Software Foundation
+# Copyright (C) 2001-2006 Python Software Foundation
 # Author: Ben Gertzfield
 # Contact: email-sig@python.org

 """Quoted-printable content transfer encoding per RFCs 2045-2047.

 This module handles the content transfer encoding method defined in RFC 2045
-to encode US ASCII-like 8-bit data called 'quoted-printable'.  It is used to
+to encode US ASCII-like 8-bit data called `quoted-printable'.  It is used to
 safely encode text that is in a character set similar to the 7-bit US ASCII
 character set, but that includes some 8-bit characters that are normally not
 allowed in email bodies or headers.
@@ -17,7 +17,7 @@ This module provides an interface to encode and decode both headers and bodies
 with quoted-printable encoding.

 RFC 2045 defines a method for including character set information in an
-'encoded-word' in a header.  This method is commonly used for 8-bit real names
+`encoded-word' in a header.  This method is commonly used for 8-bit real names
 in To:/From:/Cc: etc. fields, as well as Subject: lines.

 This module does not do the line wrapping or end-of-line character
@@ -127,7 +127,7 @@ def quote(c):
 def header_encode(header_bytes, charset='iso-8859-1'):
    """Encode a single header line with quoted-printable (like) encoding.

-    Defined in RFC 2045, this 'Q' encoding is similar to quoted-printable, but
+    Defined in RFC 2045, this `Q' encoding is similar to quoted-printable, but
    used specifically for email header fields to allow charsets with mostly 7
    bit characters (and some 8 bit) to remain more or less readable in non-RFC
    2045 aware mail clients.
@@ -272,7 +272,7 @@ def decode(encoded, eol=NL):
                decoded += eol
    # Special case if original string did not end with eol
    if encoded[-1] not in '\r\n' and decoded.endswith(eol):
-        decoded = decoded[:-len(eol)]
+        decoded = decoded[:-1]
    return decoded


@@ -290,7 +290,7 @@ def _unquote_match(match):

 # Header decoding is done a bit differently
 def header_decode(s):
-    """Decode a string encoded with RFC 2045 MIME header 'Q' encoding.
+    """Decode a string encoded with RFC 2045 MIME header `Q' encoding.

    This function does not parse a full MIME header value encoded with
    quoted-printable (like =?iso-8859-1?q?Hello_World?=) -- please use
--- a/Lib/email/utils.py
+++ b/Lib/email/utils.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2001 Python Software Foundation
+# Copyright (C) 2001-2010 Python Software Foundation
 # Author: Barry Warsaw
 # Contact: email-sig@python.org

@@ -472,15 +472,23 @@ def collapse_rfc2231_value(value, errors='replace',
 # better than not having it.
 #

-def localtime(dt=None):
+def localtime(dt=None, isdst=None):
    """Return local time as an aware datetime object.

    If called without arguments, return current time.  Otherwise *dt*
    argument should be a datetime instance, and it is converted to the
    local time zone according to the system time zone database.  If *dt* is
    naive (that is, dt.tzinfo is None), it is assumed to be in local time.
+    The isdst parameter is ignored.

    """
+    if isdst is not None:
+        import warnings
+        warnings._deprecated(
+            "The 'isdst' parameter to 'localtime'",
+            message='{name} is deprecated and slated for removal in Python {remove}',
+            remove=(3, 14),
+            )
    if dt is None:
        dt = datetime.datetime.now()
    return dt.astimezone()
--- a/Lib/encodings/init.py
+++ b/Lib/encodings/init.py
@@ -33,7 +33,6 @@ import sys
 from . import aliases

 _cache = {}
-_MAXCACHE = 500
 _unknown = '--unknown--'
 _import_tail = ['*']
 _aliases = aliases.aliases
@@ -116,8 +115,6 @@ def search_function(encoding):

    if mod is None:
        # Cache misses
-        if len(_cache) >= _MAXCACHE:
-            _cache.clear()
        _cache[encoding] = None
        return None

@@ -139,8 +136,6 @@ def search_function(encoding):
        entry = codecs.CodecInfo(*entry)

    # Cache the codec registry entry
-    if len(_cache) >= _MAXCACHE:
-        _cache.clear()
    _cache[encoding] = entry

    # Register its aliases (without overwriting previously registered
--- a/Lib/ensurepip/init.py
+++ b/Lib/ensurepip/init.py
@@ -10,14 +10,13 @@ from shutil import copy2


 __all__ = ["version", "bootstrap"]
-_PIP_VERSION = "26.1.1"
+_PIP_VERSION = "25.3"

 # Directory of system wheel packages. Some Linux distribution packaging
 # policies recommend against bundling dependencies. For example, Fedora
 # installs wheel packages in the /usr/share/python-wheels/ directory and don't
 # install the ensurepip._bundled package.
-_pkg_dir = sysconfig.get_config_var('WHEEL_PKG_DIR')
-if _pkg_dir:
+if (_pkg_dir := sysconfig.get_config_var('WHEEL_PKG_DIR')) is not None:
    _WHEEL_PKG_DIR = Path(_pkg_dir).resolve()
 else:
    _WHEEL_PKG_DIR = None
--- a/Lib/ensurepip/_bundled/pip-26.1.1-py3-none-any.whl
+++ b/Lib/ensurepip/_bundled/pip-26.1.1-py3-none-any.whl
--- a/Lib/glob.py
+++ b/Lib/glob.py
@@ -15,7 +15,7 @@ __all__ = ["glob", "iglob", "escape", "translate"]

 def glob(pathname, *, root_dir=None, dir_fd=None, recursive=False,
        include_hidden=False):
-    """Return a list of paths matching a `pathname` pattern.
+    """Return a list of paths matching a pathname pattern.

    The pattern may contain simple shell-style wildcards a la
    fnmatch. Unlike fnmatch, filenames starting with a
@@ -25,15 +25,6 @@ def glob(pathname, *, root_dir=None, dir_fd=None, recursive=False,
    The order of the returned list is undefined. Sort it if you need a
    particular order.

-    If `root_dir` is not None, it should be a path-like object specifying the
-    root directory for searching. It has the same effect as changing the
-    current directory before calling it (without actually
-    changing it). If pathname is relative, the result will contain
-    paths relative to `root_dir`.
-
-    If `dir_fd` is not None, it should be a file descriptor referring to a
-    directory, and paths will then be relative to that directory.
-
    If `include_hidden` is true, the patterns '*', '?', '**'  will match hidden
    directories.

@@ -45,7 +36,7 @@ def glob(pathname, *, root_dir=None, dir_fd=None, recursive=False,

 def iglob(pathname, *, root_dir=None, dir_fd=None, recursive=False,
          include_hidden=False):
-    """Return an iterator which yields the paths matching a `pathname` pattern.
+    """Return an iterator which yields the paths matching a pathname pattern.

    The pattern may contain simple shell-style wildcards a la
    fnmatch. However, unlike fnmatch, filenames starting with a
@@ -55,19 +46,7 @@ def iglob(pathname, *, root_dir=None, dir_fd=None, recursive=False,
    The order of the returned paths is undefined. Sort them if you need a
    particular order.

-    If `root_dir` is not None, it should be a path-like object specifying
-    the root directory for searching. It has the same effect as changing
-    the current directory before calling it (without actually
-    changing it). If pathname is relative, the result will contain
-    paths relative to `root_dir`.
-
-    If `dir_fd` is not None, it should be a file descriptor referring to a
-    directory, and paths will then be relative to that directory.
-
-    If `include_hidden` is true, the patterns '*', '?', '**'  will match hidden
-    directories.
-
-    If `recursive` is true, the pattern '**' will match any files and
+    If recursive is true, the pattern '**' will match any files and
    zero or more directories and subdirectories.
    """
    sys.audit("glob.glob", pathname, recursive)
--- a/Lib/http/client.py
+++ b/Lib/http/client.py
@@ -972,22 +972,13 @@ class HTTPConnection:
        return ip

    def _tunnel(self):
-        if _contains_disallowed_url_pchar_re.search(self._tunnel_host):
-            raise ValueError('Tunnel host can\'t contain control characters %r'
-                             % (self._tunnel_host,))
        connect = b"CONNECT %s:%d %s\r\n" % (
            self._wrap_ipv6(self._tunnel_host.encode("idna")),
            self._tunnel_port,
            self._http_vsn_str.encode("ascii"))
        headers = [connect]
        for header, value in self._tunnel_headers.items():
-            header_bytes = header.encode("latin-1")
-            value_bytes = value.encode("latin-1")
-            if not _is_legal_header_name(header_bytes):
-                raise ValueError('Invalid header name %r' % (header_bytes,))
-            if _is_illegal_header_value(value_bytes):
-                raise ValueError('Invalid header value %r' % (value_bytes,))
-            headers.append(b"%s: %s\r\n" % (header_bytes, value_bytes))
+            headers.append(f"{header}: {value}\r\n".encode("latin-1"))
        headers.append(b"\r\n")
        # Making a single send() call instead of one per line encourages
        # the host OS to use a more optimal packet size instead of
--- a/Lib/http/cookies.py
+++ b/Lib/http/cookies.py
@@ -337,16 +337,9 @@ class Morsel(dict):
            key = key.lower()
            if key not in self._reserved:
                raise CookieError("Invalid attribute %r" % (key,))
-            if _has_control_character(key, val):
-                raise CookieError("Control characters are not allowed in "
-                                  f"cookies {key!r} {val!r}")
            data[key] = val
        dict.update(self, data)

-    def __ior__(self, values):
-        self.update(values)
-        return self
-
    def isReservedKey(self, K):
        return K.lower() in self._reserved

@@ -372,15 +365,9 @@ class Morsel(dict):
        }

    def __setstate__(self, state):
-        key = state['key']
-        value = state['value']
-        coded_value = state['coded_value']
-        if _has_control_character(key, value, coded_value):
-            raise CookieError("Control characters are not allowed in cookies "
-                              f"{key!r} {value!r} {coded_value!r}")
-        self._key = key
-        self._value = value
-        self._coded_value = coded_value
+        self._key = state['key']
+        self._value = state['value']
+        self._coded_value = state['coded_value']

    def output(self, attrs=None, header="Set-Cookie:"):
        return "%s %s" % (header, self.OutputString(attrs))
@@ -391,21 +378,14 @@ class Morsel(dict):
        return '<%s: %s>' % (self.__class__.__name__, self.OutputString())

    def js_output(self, attrs=None):
-        import base64
        # Print javascript
-        output_string = self.OutputString(attrs)
-        if _has_control_character(output_string):
-            raise CookieError("Control characters are not allowed in cookies")
-        # Base64-encode value to avoid template
-        # injection in cookie values.
-        output_encoded = base64.b64encode(output_string.encode('utf-8')).decode("ascii")
        return """
        <script type="text/javascript">
        <!-- begin hiding
-        document.cookie = atob(\"%s\");
+        document.cookie = \"%s\";
        // end hiding -->
        </script>
-        """ % (output_encoded,)
+        """ % (self.OutputString(attrs).replace('"', r'\"'))

    def OutputString(self, attrs=None):
        # Build up our result
--- a/Lib/inspect.py
+++ b/Lib/inspect.py
@@ -1,7 +1,7 @@
 """Get useful information from live Python objects.

 This module encapsulates the interface provided by the internal special
-attributes (co_*, tb_*, etc.) in a friendlier fashion.
+attributes (co_*, im_*, tb_*, etc.) in a friendlier fashion.
 It also provides some help for examining source code and class layout.

 Here are some of the useful functions provided by this module:
@@ -2660,12 +2660,11 @@ class Parameter:
        The annotation for the parameter if specified.  If the
        parameter has no annotation, this attribute is set to
        `Parameter.empty`.
-    * kind
+    * kind : str
        Describes how argument values are bound to the parameter.
        Possible values: `Parameter.POSITIONAL_ONLY`,
        `Parameter.POSITIONAL_OR_KEYWORD`, `Parameter.VAR_POSITIONAL`,
        `Parameter.KEYWORD_ONLY`, `Parameter.VAR_KEYWORD`.
-        Every value has a `description` attribute describing meaning.
    """

    __slots__ = ('_name', '_kind', '_default', '_annotation')
--- a/Lib/logging/init.py
+++ b/Lib/logging/init.py
@@ -1475,6 +1475,8 @@ class Logger(Filterer):
    level, and "input.csv", "input.xls" and "input.gnu" for the sub-levels.
    There is no arbitrary limit to the depth of nesting.
    """
+    _tls = threading.local()
+
    def __init__(self, name, level=NOTSET):
        """
        Initialize the logger with a name and an optional level.
@@ -1671,14 +1673,19 @@ class Logger(Filterer):
        This method is used for unpickled records received from a socket, as
        well as those created locally. Logger-level filtering is applied.
        """
-        if self.disabled:
+        if self._is_disabled():
            return
-        maybe_record = self.filter(record)
-        if not maybe_record:
-            return
-        if isinstance(maybe_record, LogRecord):
-            record = maybe_record
-        self.callHandlers(record)
+
+        self._tls.in_progress = True
+        try:
+            maybe_record = self.filter(record)
+            if not maybe_record:
+                return
+            if isinstance(maybe_record, LogRecord):
+                record = maybe_record
+            self.callHandlers(record)
+        finally:
+            self._tls.in_progress = False

    def addHandler(self, hdlr):
        """
@@ -1766,7 +1773,7 @@ class Logger(Filterer):
        """
        Is this logger enabled for level 'level'?
        """
-        if self.disabled:
+        if self._is_disabled():
            return False

        try:
@@ -1816,6 +1823,11 @@ class Logger(Filterer):
                       if isinstance(item, Logger) and item.parent is self and
                       _hierlevel(item) == 1 + _hierlevel(item.parent))

+    def _is_disabled(self):
+        # We need to use getattr as it will only be set the first time a log
+        # message is recorded on any given thread
+        return self.disabled or getattr(self._tls, 'in_progress', False)
+
    def __repr__(self):
        level = getLevelName(self.getEffectiveLevel())
        return '<%s %s (%s)>' % (self.__class__.__name__, self.name, level)
@@ -1852,9 +1864,9 @@ class LoggerAdapter(object):

    def __init__(self, logger, extra=None, merge_extra=False):
        """
-        Initialize the adapter with a logger and an optional dict-like object
-        which provides contextual information. This constructor signature
-        allows easy stacking of LoggerAdapters, if so desired.
+        Initialize the adapter with a logger and a dict-like object which
+        provides contextual information. This constructor signature allows
+        easy stacking of LoggerAdapters, if so desired.

        You can effectively pass keyword arguments as shown in the
        following example:
@@ -1885,9 +1897,8 @@ class LoggerAdapter(object):
        Normally, you'll only need to override this one method in a
        LoggerAdapter subclass for your specific needs.
        """
-        if self.merge_extra and kwargs.get("extra") is not None:
-            if self.extra is not None:
-                kwargs["extra"] = {**self.extra, **kwargs["extra"]}
+        if self.merge_extra and "extra" in kwargs:
+            kwargs["extra"] = {**self.extra, **kwargs["extra"]}
        else:
            kwargs["extra"] = self.extra
        return msg, kwargs
--- a/Lib/logging/config.py
+++ b/Lib/logging/config.py
@@ -865,8 +865,6 @@ class DictConfigurator(BaseConfigurator):
            else:
                factory = klass
        kwargs = {k: config[k] for k in config if (k != '.' and valid_ident(k))}
-        # When deprecation ends for using the 'strm' parameter, remove the
-        # "except TypeError ..."
        try:
            result = factory(**kwargs)
        except TypeError as te:
@@ -878,15 +876,6 @@ class DictConfigurator(BaseConfigurator):
            #(e.g. by Django)
            kwargs['strm'] = kwargs.pop('stream')
            result = factory(**kwargs)
-
-            import warnings
-            warnings.warn(
-                "Support for custom logging handlers with the 'strm' argument "
-                "is deprecated and scheduled for removal in Python 3.16. "
-                "Define handlers with the 'stream' argument instead.",
-                DeprecationWarning,
-                stacklevel=2,
-            )
        if formatter:
            result.setFormatter(formatter)
        if level is not None:
@@ -1017,8 +1006,7 @@ def listen(port=DEFAULT_LOGGING_CONFIG_PORT, verify=None):
        A simple TCP socket-based logging config receiver.
        """

-        allow_reuse_address = True
-        allow_reuse_port = False
+        allow_reuse_address = 1

        def __init__(self, host='localhost', port=DEFAULT_LOGGING_CONFIG_PORT,
                     handler=None, ready=None, verify=None):
--- a/Lib/logging/handlers.py
+++ b/Lib/logging/handlers.py
@@ -196,11 +196,7 @@ class RotatingFileHandler(BaseRotatingHandler):
        if self.stream is None:                 # delay was set...
            self.stream = self._open()
        if self.maxBytes > 0:                   # are we rolling over?
-            try:
-                pos = self.stream.tell()
-            except io.UnsupportedOperation:
-                # gh-143237: Never rollover a named pipe.
-                return False
+            pos = self.stream.tell()
            if not pos:
                # gh-116263: Never rollover an empty file
                return False
@@ -859,7 +855,7 @@ class SysLogHandler(logging.Handler):
    }

    def __init__(self, address=('localhost', SYSLOG_UDP_PORT),
-                 facility=LOG_USER, socktype=None, timeout=None):
+                 facility=LOG_USER, socktype=None):
        """
        Initialize a handler.

@@ -876,7 +872,6 @@ class SysLogHandler(logging.Handler):
        self.address = address
        self.facility = facility
        self.socktype = socktype
-        self.timeout = timeout
        self.socket = None
        self.createSocket()

@@ -938,8 +933,6 @@ class SysLogHandler(logging.Handler):
                err = sock = None
                try:
                    sock = socket.socket(af, socktype, proto)
-                    if self.timeout:
-                        sock.settimeout(self.timeout)
                    if socktype == socket.SOCK_STREAM:
                        sock.connect(sa)
                    break
@@ -1536,19 +1529,6 @@ class QueueListener(object):
        self._thread = None
        self.respect_handler_level = respect_handler_level

-    def __enter__(self):
-        """
-        For use as a context manager. Starts the listener.
-        """
-        self.start()
-        return self
-
-    def __exit__(self, *args):
-        """
-        For use as a context manager. Stops the listener.
-        """
-        self.stop()
-
    def dequeue(self, block):
        """
        Dequeue a record and return it, optionally blocking.
--- a/Lib/pickle.py
+++ b/Lib/pickle.py
@@ -904,11 +904,17 @@ class _Pickler:
                    # Write data in-band
                    # XXX The C implementation avoids a copy here
                    buf = m.tobytes()
+                    in_memo = id(buf) in self.memo
                    if m.readonly:
-                        self._save_bytes_no_memo(buf)
+                        if in_memo:
+                            self._save_bytes_no_memo(buf)
+                        else:
+                            self.save_bytes(buf)
                    else:
-                        self._save_bytearray_no_memo(buf)
-                    self.memoize(obj)
+                        if in_memo:
+                            self._save_bytearray_no_memo(buf)
+                        else:
+                            self.save_bytearray(buf)
                else:
                    # Write data out-of-band
                    self.write(NEXT_BUFFER)
--- a/Lib/platform.py
+++ b/Lib/platform.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 """ This module tries to retrieve as much platform-identifying data as
    possible. It makes this information available via function APIs.

@@ -31,7 +33,6 @@
 #
 #    <see CVS and SVN checkin messages for history>
 #
-#    1.0.9 - added invalidate_caches() function to invalidate cached values
 #    1.0.8 - changed Windows support to read version from kernel32.dll
 #    1.0.7 - added DEV_NULL
 #    1.0.6 - added linux_distribution()
@@ -110,7 +111,7 @@ __copyright__ = """

 """

-__version__ = '1.0.9'
+__version__ = '1.0.8'

 import collections
 import os
@@ -173,11 +174,6 @@ def libc_ver(executable=None, lib='', version='', chunksize=16384):

    """
    if not executable:
-        if sys.platform == "emscripten":
-            # Emscripten's os.confstr reports that it is glibc, so special case
-            # it.
-            ver = ".".join(str(x) for x in sys._emscripten_info.emscripten_version)
-            return ("emscripten", ver)
        try:
            ver = os.confstr('CS_GNU_LIBC_VERSION')
            # parse 'glibc 2.28' as ('glibc', '2.28')
@@ -194,26 +190,22 @@ def libc_ver(executable=None, lib='', version='', chunksize=16384):
            # sys.executable is not set.
            return lib, version

-    libc_search = re.compile(br"""
-          (__libc_init)
-        | (GLIBC_([0-9.]+))
-        | (libc(_\w+)?\.so(?:\.(\d[0-9.]*))?)
-        | (musl-([0-9.]+))
-        | ((?:libc\.|ld-)musl(?:-\w+)?.so(?:\.(\d[0-9.]*))?)
-        """,
-        re.ASCII | re.VERBOSE)
+    libc_search = re.compile(b'(__libc_init)'
+                          b'|'
+                          b'(GLIBC_([0-9.]+))'
+                          b'|'
+                          br'(libc(_\w+)?\.so(?:\.(\d[0-9.]*))?)', re.ASCII)

    V = _comparable_version
    # We use os.path.realpath()
    # here to work around problems with Cygwin not being
    # able to open symlinks for reading
    executable = os.path.realpath(executable)
-    ver = None
    with open(executable, 'rb') as f:
        binary = f.read(chunksize)
        pos = 0
        while pos < len(binary):
-            if b'libc' in binary or b'GLIBC' in binary or b'musl' in binary:
+            if b'libc' in binary or b'GLIBC' in binary:
                m = libc_search.search(binary, pos)
            else:
                m = None
@@ -225,35 +217,26 @@ def libc_ver(executable=None, lib='', version='', chunksize=16384):
                    continue
                if not m:
                    break
-            decoded_groups = [s.decode('latin1') if s is not None else s
-                              for s in m.groups()]
-            (libcinit, glibc, glibcversion, so, threads, soversion,
-             musl, muslversion, musl_so, musl_sover) = decoded_groups
+            libcinit, glibc, glibcversion, so, threads, soversion = [
+                s.decode('latin1') if s is not None else s
+                for s in m.groups()]
            if libcinit and not lib:
                lib = 'libc'
            elif glibc:
                if lib != 'glibc':
                    lib = 'glibc'
-                    ver = glibcversion
-                elif V(glibcversion) > V(ver):
-                    ver = glibcversion
+                    version = glibcversion
+                elif V(glibcversion) > V(version):
+                    version = glibcversion
            elif so:
-                if lib not in ('glibc', 'musl'):
+                if lib != 'glibc':
                    lib = 'libc'
-                    if soversion and (not ver or V(soversion) > V(ver)):
-                        ver = soversion
-                    if threads and ver[-len(threads):] != threads:
-                        ver = ver + threads
-            elif musl:
-                lib = 'musl'
-                if not ver or V(muslversion) > V(ver):
-                    ver = muslversion
-            elif musl_so:
-                lib = 'musl'
-                if musl_sover and (not ver or V(musl_sover) > V(ver)):
-                    ver = musl_sover
+                    if soversion and (not version or V(soversion) > V(version)):
+                        version = soversion
+                    if threads and version[-len(threads):] != threads:
+                        version = version + threads
            pos = m.end()
-    return lib, version if ver is None else ver
+    return lib, version

 def _norm_version(version, build=''):

@@ -566,7 +549,7 @@ def java_ver(release='', vendor='', vminfo=('', '', ''), osinfo=('', '', '')):
    warnings._deprecated('java_ver', remove=(3, 15))
    # Import the needed APIs
    try:
-        import java.lang  # noqa: F401
+        import java.lang
    except ImportError:
        return release, vendor, vminfo, osinfo

@@ -1209,7 +1192,7 @@ def _sys_version(sys_version=None):
        # CPython
        cpython_sys_version_parser = re.compile(
            r'([\w.+]+)\s*'  # "version<space>"
-            r'(?:free-threading build\s+)?' # "free-threading-build<space>"
+            r'(?:experimental free-threading build\s+)?' # "free-threading-build<space>"
            r'\(#?([^,]+)'  # "(#buildno"
            r'(?:,\s*([\w ]*)'  # ", builddate"
            r'(?:,\s*([\w :]*))?)?\)\s*'  # ", buildtime)<space>"
@@ -1466,55 +1449,11 @@ def freedesktop_os_release():
    return _os_release_cache.copy()


-def invalidate_caches():
-    """Invalidate the cached results."""
-    global _uname_cache
-    _uname_cache = None
-
-    global _os_release_cache
-    _os_release_cache = None
-
-    _sys_version_cache.clear()
-    _platform_cache.clear()
-
-
 ### Command line interface

-def _parse_args(args: list[str] | None):
-    import argparse
-
-    parser = argparse.ArgumentParser(color=True)
-    parser.add_argument("args", nargs="*", choices=["nonaliased", "terse"])
-    parser.add_argument(
-        "--terse",
-        action="store_true",
-        help=(
-            "return only the absolute minimum information needed "
-            "to identify the platform"
-        ),
-    )
-    parser.add_argument(
-        "--nonaliased",
-        dest="aliased",
-        action="store_false",
-        help=(
-            "disable system/OS name aliasing. If aliasing is enabled, "
-            "some platforms report system names different from "
-            "their common names, e.g. SunOS is reported as Solaris"
-        ),
-    )
-
-    return parser.parse_args(args)
-
-
-def _main(args: list[str] | None = None):
-    args = _parse_args(args)
-
-    terse = args.terse or ("terse" in args.args)
-    aliased = args.aliased and ('nonaliased' not in args.args)
-
+if __name__ == '__main__':
+    # Default is to print the aliased verbose platform string
+    terse = ('terse' in sys.argv or '--terse' in sys.argv)
+    aliased = (not 'nonaliased' in sys.argv and not '--nonaliased' in sys.argv)
    print(platform(aliased, terse))
-
-
-if __name__ == "__main__":
-    _main()
+    sys.exit(0)
--- a/Lib/plistlib.py
+++ b/Lib/plistlib.py
@@ -21,7 +21,7 @@ datetime.datetime objects.

 Generate Plist example:

-    import datetime as dt
+    import datetime
    import plistlib

    pl = dict(
@@ -37,7 +37,7 @@ Generate Plist example:
        ),
        someData = b"<binary gunk>",
        someMoreData = b"<lots of binary gunk>" * 10,
-        aDate = dt.datetime.now()
+        aDate = datetime.datetime.now()
    )
    print(plistlib.dumps(pl).decode())

@@ -384,7 +384,7 @@ class _PlistWriter(_DumbXMLWriter):
        self._indent_level -= 1
        maxlinelength = max(
            16,
-            76 - len((self.indent * self._indent_level).expandtabs()))
+            76 - len(self.indent.replace(b"\t", b" " * 8) * self._indent_level))

        for line in _encode_base64(data, maxlinelength).split(b"\n"):
            if line:
--- a/Lib/pty.py
+++ b/Lib/pty.py
@@ -32,19 +32,28 @@ def openpty():
    except (AttributeError, OSError):
        pass
    master_fd, slave_name = _open_terminal()
-
-    slave_fd = os.open(slave_name, os.O_RDWR)
-    try:
-        from fcntl import ioctl, I_PUSH
-    except ImportError:
-         return master_fd, slave_fd
-    try:
-        ioctl(slave_fd, I_PUSH, "ptem")
-        ioctl(slave_fd, I_PUSH, "ldterm")
-    except OSError:
-        pass
+    slave_fd = slave_open(slave_name)
    return master_fd, slave_fd

+def master_open():
+    """master_open() -> (master_fd, slave_name)
+    Open a pty master and return the fd, and the filename of the slave end.
+    Deprecated, use openpty() instead."""
+
+    import warnings
+    warnings.warn("Use pty.openpty() instead.", DeprecationWarning, stacklevel=2)  # Remove API in 3.14
+
+    try:
+        master_fd, slave_fd = os.openpty()
+    except (AttributeError, OSError):
+        pass
+    else:
+        slave_name = os.ttyname(slave_fd)
+        os.close(slave_fd)
+        return master_fd, slave_name
+
+    return _open_terminal()
+
 def _open_terminal():
    """Open pty master and return (master_fd, tty_name)."""
    for x in 'pqrstuvwxyzPQRST':
@@ -57,6 +66,26 @@ def _open_terminal():
            return (fd, '/dev/tty' + x + y)
    raise OSError('out of pty devices')

+def slave_open(tty_name):
+    """slave_open(tty_name) -> slave_fd
+    Open the pty slave and acquire the controlling terminal, returning
+    opened filedescriptor.
+    Deprecated, use openpty() instead."""
+
+    import warnings
+    warnings.warn("Use pty.openpty() instead.", DeprecationWarning, stacklevel=2)  # Remove API in 3.14
+
+    result = os.open(tty_name, os.O_RDWR)
+    try:
+        from fcntl import ioctl, I_PUSH
+    except ImportError:
+        return result
+    try:
+        ioctl(result, I_PUSH, "ptem")
+        ioctl(result, I_PUSH, "ldterm")
+    except OSError:
+        pass
+    return result

 def fork():
    """fork() -> (pid, master_fd)
--- a/Lib/pydoc_data/module_docs.py
+++ b/Lib/pydoc_data/module_docs.py
@@ -1,4 +1,4 @@
-# Autogenerated by Sphinx on Sun May 10 13:21:26 2026
+# Autogenerated by Sphinx on Tue Feb  3 17:32:13 2026
 # as part of the release process.

 module_docs = {
--- a/Lib/pydoc_data/topics.py
+++ b/Lib/pydoc_data/topics.py
--- a/Lib/random.py
+++ b/Lib/random.py
@@ -836,11 +836,7 @@ class Random(_random.Random):
            if not c:
                return x
            while True:
-                try:
-                    y += _floor(_log2(random()) / c) + 1
-                except ValueError:
-                    # Reject case where random() returned 0.0
-                    continue
+                y += _floor(_log2(random()) / c) + 1
                if y > n:
                    return x
                x += 1
@@ -848,8 +844,8 @@ class Random(_random.Random):
        # BTRS: Transformed rejection with squeeze method by Wolfgang Hörmann
        # https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.47.8407&rep=rep1&type=pdf
        assert n*p >= 10.0 and p <= 0.5
-
        setup_complete = False
+
        spq = _sqrt(n * p * (1.0 - p))  # Standard deviation of the distribution
        b = 1.15 + 2.53 * spq
        a = -0.0873 + 0.0248 * b + 0.01 * p
@@ -864,23 +860,22 @@ class Random(_random.Random):
            k = _floor((2.0 * a / us + b) * u + c)
            if k < 0 or k > n:
                continue
-            v = random()

            # The early-out "squeeze" test substantially reduces
            # the number of acceptance condition evaluations.
+            v = random()
            if us >= 0.07 and v <= vr:
                return k

+            # Acceptance-rejection test.
+            # Note, the original paper erroneously omits the call to log(v)
+            # when comparing to the log of the rescaled binomial distribution.
            if not setup_complete:
                alpha = (2.83 + 5.1 / b) * spq
                lpq = _log(p / (1.0 - p))
                m = _floor((n + 1) * p)         # Mode of the distribution
                h = _lgamma(m + 1) + _lgamma(n - m + 1)
                setup_complete = True           # Only needs to be done once
-
-            # Acceptance-rejection test.
-            # Note, the original paper erroneously omits the call to log(v)
-            # when comparing to the log of the rescaled binomial distribution.
            v *= alpha / (a / (us * us) + b)
            if _log(v) <= h - _lgamma(k + 1) - _lgamma(n - k + 1) + (k - m) * lpq:
                return k
--- a/Lib/runpy.py
+++ b/Lib/runpy.py
@@ -103,10 +103,8 @@ def _run_module_code(code, init_globals=None,

 # Helper to get the full name, spec and code for a module
 def _get_module_details(mod_name, error=ImportError):
-    # name= is only accepted by ImportError and its subclasses.
-    kwargs = {"name": mod_name} if issubclass(error, ImportError) else {}
    if mod_name.startswith("."):
-        raise error("Relative module names not supported", **kwargs)
+        raise error("Relative module names not supported")
    pkg_name, _, _ = mod_name.rpartition(".")
    if pkg_name:
        # Try importing the parent to avoid catching initialization errors
@@ -139,13 +137,12 @@ def _get_module_details(mod_name, error=ImportError):
        if mod_name.endswith(".py"):
            msg += (f". Try using '{mod_name[:-3]}' instead of "
                    f"'{mod_name}' as the module name.")
-        raise error(msg.format(mod_name, type(ex).__name__, ex),
-                    **kwargs) from ex
+        raise error(msg.format(mod_name, type(ex).__name__, ex)) from ex
    if spec is None:
-        raise error("No module named %s" % mod_name, **kwargs)
+        raise error("No module named %s" % mod_name)
    if spec.submodule_search_locations is not None:
        if mod_name == "__main__" or mod_name.endswith(".__main__"):
-            raise error("Cannot use package as __main__ module", **kwargs)
+            raise error("Cannot use package as __main__ module")
        try:
            pkg_main_name = mod_name + ".__main__"
            return _get_module_details(pkg_main_name, error)
@@ -153,19 +150,17 @@ def _get_module_details(mod_name, error=ImportError):
            if mod_name not in sys.modules:
                raise  # No module loaded; being a package is irrelevant
            raise error(("%s; %r is a package and cannot " +
-                               "be directly executed") %(e, mod_name),
-                        **kwargs)
+                               "be directly executed") %(e, mod_name))
    loader = spec.loader
    if loader is None:
        raise error("%r is a namespace package and cannot be executed"
-                                                                 % mod_name,
-                    **kwargs)
+                                                                 % mod_name)
    try:
        code = loader.get_code(mod_name)
    except ImportError as e:
-        raise error(format(e), **kwargs) from e
+        raise error(format(e)) from e
    if code is None:
-        raise error("No code object available for %s" % mod_name, **kwargs)
+        raise error("No code object available for %s" % mod_name)
    return mod_name, spec, code

 class _Error(Exception):
@@ -239,7 +234,6 @@ def _get_main_module_details(error=ImportError):
    # Also moves the standard __main__ out of the way so that the
    # preexisting __loader__ entry doesn't cause issues
    main_name = "__main__"
-    kwargs = {"name": main_name} if issubclass(error, ImportError) else {}
    saved_main = sys.modules[main_name]
    del sys.modules[main_name]
    try:
@@ -247,8 +241,7 @@ def _get_main_module_details(error=ImportError):
    except ImportError as exc:
        if main_name in str(exc):
            raise error("can't find %r module in %r" %
-                              (main_name, sys.path[0]),
-                        **kwargs) from exc
+                              (main_name, sys.path[0])) from exc
        raise
    finally:
        sys.modules[main_name] = saved_main
--- a/Lib/shutil.py
+++ b/Lib/shutil.py
@@ -1314,9 +1314,27 @@ def _unpack_zipfile(filename, extract_dir):
    if not zipfile.is_zipfile(filename):
        raise ReadError("%s is not a zip file" % filename)

-    with zipfile.ZipFile(filename) as zip:
-        zip._ignore_invalid_names = True
-        zip.extractall(extract_dir)
+    zip = zipfile.ZipFile(filename)
+    try:
+        for info in zip.infolist():
+            name = info.filename
+
+            # don't extract absolute paths or ones with .. in them
+            if name.startswith('/') or '..' in name:
+                continue
+
+            targetpath = os.path.join(extract_dir, *name.split('/'))
+            if not targetpath:
+                continue
+
+            _ensure_directory(targetpath)
+            if not name.endswith('/'):
+                # file
+                with zip.open(name, 'r') as source, \
+                        open(targetpath, 'wb') as target:
+                    copyfileobj(source, target)
+    finally:
+        zip.close()

 def _unpack_tarfile(filename, extract_dir, *, filter=None):
    """Unpack tar/tar.gz/tar.bz2/tar.xz/tar.zst `filename` to `extract_dir`
--- a/Lib/site.py
+++ b/Lib/site.py
@@ -290,7 +290,7 @@ def check_enableusersite():

 # Copy of sysconfig._get_implementation()
 def _get_implementation():
-    return 'RustPython' # XXX: RUSTPYTHON; for site-packages
+    return 'RustPython' # XXX: RustPython; for site-packages

 # Copy of sysconfig._getuserbase()
 def _getuserbase():
--- a/Lib/smtplib.py
+++ b/Lib/smtplib.py
@@ -251,6 +251,7 @@ class SMTP:
        will be used.

        """
+        self._host = host
        self.timeout = timeout
        self.esmtp_features = {}
        self.command_encoding = 'ascii'
@@ -341,7 +342,6 @@ class SMTP:
                    port = int(port)
                except ValueError:
                    raise OSError("nonnumeric port")
-        self._host = host
        if not port:
            port = self.default_port
        sys.audit("smtplib.connect", self, host, port)
--- a/Lib/socket.py
+++ b/Lib/socket.py
@@ -640,22 +640,18 @@ def _fallback_socketpair(family=AF_INET, type=SOCK_STREAM, proto=0):
    # Authenticating avoids using a connection from something else
    # able to connect to {host}:{port} instead of us.
    # We expect only AF_INET and AF_INET6 families.
-    #
-    # Note that we skip this on WASI because on that platorm the client socket
-    # may not have finished connecting by the time we've reached this point (gh-146139).
-    if sys.platform != "wasi":
-        try:
-            if (
-                    ssock.getsockname() != csock.getpeername()
-                    or csock.getsockname() != ssock.getpeername()
-            ):
-                raise ConnectionError("Unexpected peer connection")
-        except:
-            # getsockname() and getpeername() can fail
-            # if either socket isn't connected.
-            ssock.close()
-            csock.close()
-            raise
+    try:
+        if (
+            ssock.getsockname() != csock.getpeername()
+            or csock.getsockname() != ssock.getpeername()
+        ):
+            raise ConnectionError("Unexpected peer connection")
+    except:
+        # getsockname() and getpeername() can fail
+        # if either socket isn't connected.
+        ssock.close()
+        csock.close()
+        raise

    return (ssock, csock)

--- a/Lib/subprocess.py
+++ b/Lib/subprocess.py
@@ -351,16 +351,15 @@ def _args_from_interpreter_flags():
    # -X options
    if dev_mode:
        args.extend(('-X', 'dev'))
-    for opt in sorted(xoptions):
-        if opt == 'dev':
-            # handled above via sys.flags.dev_mode
-            continue
-        value = xoptions[opt]
-        if value is True:
-            arg = opt
-        else:
-            arg = '%s=%s' % (opt, value)
-        args.extend(('-X', arg))
+    for opt in ('faulthandler', 'tracemalloc', 'importtime',
+                'frozen_modules', 'showrefcount', 'utf8', 'gil'):
+        if opt in xoptions:
+            value = xoptions[opt]
+            if value is True:
+                arg = opt
+            else:
+                arg = '%s=%s' % (opt, value)
+            args.extend(('-X', arg))

    return args

--- a/Lib/sysconfig/init.py
+++ b/Lib/sysconfig/init.py
@@ -107,7 +107,7 @@ else:
    _INSTALL_SCHEMES['venv'] = _INSTALL_SCHEMES['posix_venv']

 def _get_implementation():
-    return 'RustPython'  # XXX: RUSTPYTHON; For site-packages
+    return 'RustPython' # XXX: For site-packages

 # NOTE: site.py has copy of this function.
 # Sync it when modify this function.
@@ -698,19 +698,11 @@ def get_platform():
        release = get_config_var("ANDROID_API_LEVEL")

        # Wheel tags use the ABI names from Android's own tools.
-        # When Python is running on 32-bit ARM Android on a 64-bit ARM kernel,
-        # 'os.uname().machine' is 'armv8l'. Such devices run the same userspace
-        # code as 'armv7l' devices.
-        # During the build process of the Android testbed when targeting 32-bit ARM,
-        # '_PYTHON_HOST_PLATFORM' is 'arm-linux-androideabi', so 'machine' becomes
-        # 'arm'.
        machine = {
-            "aarch64": "arm64_v8a",
-            "arm": "armeabi_v7a",
-            "armv7l": "armeabi_v7a",
-            "armv8l": "armeabi_v7a",
-            "i686": "x86",
            "x86_64": "x86_64",
+            "i686": "x86",
+            "aarch64": "arm64_v8a",
+            "armv7l": "armeabi_v7a",
        }[machine]
    elif osname == "linux":
        # At least on Linux/Intel, 'machine' is the processor --
--- a/Lib/tarfile.py
+++ b/Lib/tarfile.py
@@ -1278,20 +1278,6 @@ class TarInfo(object):
    @classmethod
    def frombuf(cls, buf, encoding, errors):
        """Construct a TarInfo object from a 512 byte bytes object.
-
-        To support the old v7 tar format AREGTYPE headers are
-        transformed to DIRTYPE headers if their name ends in '/'.
-        """
-        return cls._frombuf(buf, encoding, errors)
-
-    @classmethod
-    def _frombuf(cls, buf, encoding, errors, *, dircheck=True):
-        """Construct a TarInfo object from a 512 byte bytes object.
-
-        If ``dircheck`` is set to ``True`` then ``AREGTYPE`` headers will
-        be normalized to ``DIRTYPE`` if the name ends in a trailing slash.
-        ``dircheck`` must be set to ``False`` if this function is called
-        on a follow-up header such as ``GNUTYPE_LONGNAME``.
        """
        if len(buf) == 0:
            raise EmptyHeaderError("empty header")
@@ -1322,7 +1308,7 @@ class TarInfo(object):

        # Old V7 tar format represents a directory as a regular
        # file with a trailing slash.
-        if dircheck and obj.type == AREGTYPE and obj.name.endswith("/"):
+        if obj.type == AREGTYPE and obj.name.endswith("/"):
            obj.type = DIRTYPE

        # The old GNU sparse format occupies some of the unused
@@ -1357,15 +1343,8 @@ class TarInfo(object):
        """Return the next TarInfo object from TarFile object
           tarfile.
        """
-        return cls._fromtarfile(tarfile)
-
-    @classmethod
-    def _fromtarfile(cls, tarfile, *, dircheck=True):
-        """
-        See dircheck documentation in _frombuf().
-        """
        buf = tarfile.fileobj.read(BLOCKSIZE)
-        obj = cls._frombuf(buf, tarfile.encoding, tarfile.errors, dircheck=dircheck)
+        obj = cls.frombuf(buf, tarfile.encoding, tarfile.errors)
        obj.offset = tarfile.fileobj.tell() - BLOCKSIZE
        return obj._proc_member(tarfile)

@@ -1423,7 +1402,7 @@ class TarInfo(object):

        # Fetch the next header and process it.
        try:
-            next = self._fromtarfile(tarfile, dircheck=False)
+            next = self.fromtarfile(tarfile)
        except HeaderError as e:
            raise SubsequentHeaderError(str(e)) from None

@@ -1558,7 +1537,7 @@ class TarInfo(object):

        # Fetch the next header.
        try:
-            next = self._fromtarfile(tarfile, dircheck=False)
+            next = self.fromtarfile(tarfile)
        except HeaderError as e:
            raise SubsequentHeaderError(str(e)) from None

--- a/Lib/tempfile.py
+++ b/Lib/tempfile.py
@@ -57,11 +57,10 @@ _bin_openflags = _text_openflags
 if hasattr(_os, 'O_BINARY'):
    _bin_openflags |= _os.O_BINARY

-# This is more than enough.
-# Each name contains over 40 random bits.  Even with a million temporary
-# files, the chance of a conflict is less than 1 in a million, and with
-# 20 attempts, it is less than 1e-120.
-TMP_MAX = 20
+if hasattr(_os, 'TMP_MAX'):
+    TMP_MAX = _os.TMP_MAX
+else:
+    TMP_MAX = 10000

 # This variable _was_ unused for legacy reasons, see issue 10354.
 # But as of 3.5 we actually use it at runtime so changing it would
@@ -197,7 +196,8 @@ def _get_default_tempdir(dirlist=None):
    for dir in dirlist:
        if dir != _os.curdir:
            dir = _os.path.abspath(dir)
-        for seq in range(TMP_MAX):
+        # Try only a few names per directory.
+        for seq in range(100):
            name = next(namer)
            filename = _os.path.join(dir, name)
            try:
@@ -213,8 +213,10 @@ def _get_default_tempdir(dirlist=None):
            except FileExistsError:
                pass
            except PermissionError:
-                # See the comment in mkdtemp().
-                if _os.name == 'nt' and _os.path.isdir(dir):
+                # This exception is thrown when a directory with the chosen name
+                # already exists on windows.
+                if (_os.name == 'nt' and _os.path.isdir(dir) and
+                    _os.access(dir, _os.W_OK)):
                    continue
                break   # no point trying more names in this directory
            except OSError:
@@ -256,8 +258,10 @@ def _mkstemp_inner(dir, pre, suf, flags, output_type):
        except FileExistsError:
            continue    # try again
        except PermissionError:
-            # See the comment in mkdtemp().
-            if _os.name == 'nt' and _os.path.isdir(dir) and seq < TMP_MAX - 1:
+            # This exception is thrown when a directory with the chosen name
+            # already exists on windows.
+            if (_os.name == 'nt' and _os.path.isdir(dir) and
+                _os.access(dir, _os.W_OK)):
                continue
            else:
                raise
@@ -382,14 +386,10 @@ def mkdtemp(suffix=None, prefix=None, dir=None):
        except FileExistsError:
            continue    # try again
        except PermissionError:
-            # On Posix, this exception is raised when the user has no
-            # write access to the parent directory.
-            # On Windows, it is also raised when a directory with
-            # the chosen name already exists, or if the parent directory
-            # is not a directory.
-            # We cannot distinguish between "directory-exists-error" and
-            # "access-denied-error".
-            if _os.name == 'nt' and _os.path.isdir(dir) and seq < TMP_MAX - 1:
+            # This exception is thrown when a directory with the chosen name
+            # already exists on windows.
+            if (_os.name == 'nt' and _os.path.isdir(dir) and
+                _os.access(dir, _os.W_OK)):
                continue
            else:
                raise
--- a/Lib/test/NormalizationTest-3.2.0.txt
+++ b/Lib/test/NormalizationTest-3.2.0.txt
--- a/Lib/test/audit-tests.py
+++ b/Lib/test/audit-tests.py
@@ -1,681 +0,0 @@
-"""This script contains the actual auditing tests.
-
-It should not be imported directly, but should be run by the test_audit
-module with arguments identifying each test.
-
-"""
-
-import contextlib
-import os
-import sys
-
-
-class TestHook:
-    """Used in standard hook tests to collect any logged events.
-
-    Should be used in a with block to ensure that it has no impact
-    after the test completes.
-    """
-
-    def __init__(self, raise_on_events=None, exc_type=RuntimeError):
-        self.raise_on_events = raise_on_events or ()
-        self.exc_type = exc_type
-        self.seen = []
-        self.closed = False
-
-    def __enter__(self, *a):
-        sys.addaudithook(self)
-        return self
-
-    def __exit__(self, *a):
-        self.close()
-
-    def close(self):
-        self.closed = True
-
-    @property
-    def seen_events(self):
-        return [i[0] for i in self.seen]
-
-    def __call__(self, event, args):
-        if self.closed:
-            return
-        self.seen.append((event, args))
-        if event in self.raise_on_events:
-            raise self.exc_type("saw event " + event)
-
-
-# Simple helpers, since we are not in unittest here
-def assertEqual(x, y):
-    if x != y:
-        raise AssertionError(f"{x!r} should equal {y!r}")
-
-
-def assertIn(el, series):
-    if el not in series:
-        raise AssertionError(f"{el!r} should be in {series!r}")
-
-
-def assertNotIn(el, series):
-    if el in series:
-        raise AssertionError(f"{el!r} should not be in {series!r}")
-
-
-def assertSequenceEqual(x, y):
-    if len(x) != len(y):
-        raise AssertionError(f"{x!r} should equal {y!r}")
-    if any(ix != iy for ix, iy in zip(x, y)):
-        raise AssertionError(f"{x!r} should equal {y!r}")
-
-
-@contextlib.contextmanager
-def assertRaises(ex_type):
-    try:
-        yield
-        assert False, f"expected {ex_type}"
-    except BaseException as ex:
-        if isinstance(ex, AssertionError):
-            raise
-        assert type(ex) is ex_type, f"{ex} should be {ex_type}"
-
-
-def test_basic():
-    with TestHook() as hook:
-        sys.audit("test_event", 1, 2, 3)
-        assertEqual(hook.seen[0][0], "test_event")
-        assertEqual(hook.seen[0][1], (1, 2, 3))
-
-
-def test_block_add_hook():
-    # Raising an exception should prevent a new hook from being added,
-    # but will not propagate out.
-    with TestHook(raise_on_events="sys.addaudithook") as hook1:
-        with TestHook() as hook2:
-            sys.audit("test_event")
-            assertIn("test_event", hook1.seen_events)
-            assertNotIn("test_event", hook2.seen_events)
-
-
-def test_block_add_hook_baseexception():
-    # Raising BaseException will propagate out when adding a hook
-    with assertRaises(BaseException):
-        with TestHook(
-            raise_on_events="sys.addaudithook", exc_type=BaseException
-        ) as hook1:
-            # Adding this next hook should raise BaseException
-            with TestHook() as hook2:
-                pass
-
-
-def test_marshal():
-    import marshal
-    o = ("a", "b", "c", 1, 2, 3)
-    payload = marshal.dumps(o)
-
-    with TestHook() as hook:
-        assertEqual(o, marshal.loads(marshal.dumps(o)))
-
-        try:
-            with open("test-marshal.bin", "wb") as f:
-                marshal.dump(o, f)
-            with open("test-marshal.bin", "rb") as f:
-                assertEqual(o, marshal.load(f))
-        finally:
-            os.unlink("test-marshal.bin")
-
-    actual = [(a[0], a[1]) for e, a in hook.seen if e == "marshal.dumps"]
-    assertSequenceEqual(actual, [(o, marshal.version)] * 2)
-
-    actual = [a[0] for e, a in hook.seen if e == "marshal.loads"]
-    assertSequenceEqual(actual, [payload])
-
-    actual = [e for e, a in hook.seen if e == "marshal.load"]
-    assertSequenceEqual(actual, ["marshal.load"])
-
-
-def test_pickle():
-    import pickle
-
-    class PicklePrint:
-        def __reduce_ex__(self, p):
-            return str, ("Pwned!",)
-
-    payload_1 = pickle.dumps(PicklePrint())
-    payload_2 = pickle.dumps(("a", "b", "c", 1, 2, 3))
-
-    # Before we add the hook, ensure our malicious pickle loads
-    assertEqual("Pwned!", pickle.loads(payload_1))
-
-    with TestHook(raise_on_events="pickle.find_class") as hook:
-        with assertRaises(RuntimeError):
-            # With the hook enabled, loading globals is not allowed
-            pickle.loads(payload_1)
-        # pickles with no globals are okay
-        pickle.loads(payload_2)
-
-
-def test_monkeypatch():
-    class A:
-        pass
-
-    class B:
-        pass
-
-    class C(A):
-        pass
-
-    a = A()
-
-    with TestHook() as hook:
-        # Catch name changes
-        C.__name__ = "X"
-        # Catch type changes
-        C.__bases__ = (B,)
-        # Ensure bypassing __setattr__ is still caught
-        type.__dict__["__bases__"].__set__(C, (B,))
-        # Catch attribute replacement
-        C.__init__ = B.__init__
-        # Catch attribute addition
-        C.new_attr = 123
-        # Catch class changes
-        a.__class__ = B
-
-    actual = [(a[0], a[1]) for e, a in hook.seen if e == "object.__setattr__"]
-    assertSequenceEqual(
-        [(C, "__name__"), (C, "__bases__"), (C, "__bases__"), (a, "__class__")], actual
-    )
-
-
-def test_open(testfn):
-    # SSLContext.load_dh_params uses Py_fopen() rather than normal open()
-    try:
-        import ssl
-
-        load_dh_params = ssl.create_default_context().load_dh_params
-    except ImportError:
-        load_dh_params = None
-
-    try:
-        import readline
-    except ImportError:
-        readline = None
-
-    def rl(name):
-        if readline:
-            return getattr(readline, name, None)
-        else:
-            return None
-
-    # Try a range of "open" functions.
-    # All of them should fail
-    with TestHook(raise_on_events={"open"}) as hook:
-        for fn, *args in [
-            (open, testfn, "r"),
-            (open, sys.executable, "rb"),
-            (open, 3, "wb"),
-            (open, testfn, "w", -1, None, None, None, False, lambda *a: 1),
-            (load_dh_params, testfn),
-            (rl("read_history_file"), testfn),
-            (rl("read_history_file"), None),
-            (rl("write_history_file"), testfn),
-            (rl("write_history_file"), None),
-            (rl("append_history_file"), 0, testfn),
-            (rl("append_history_file"), 0, None),
-            (rl("read_init_file"), testfn),
-            (rl("read_init_file"), None),
-        ]:
-            if not fn:
-                continue
-            with assertRaises(RuntimeError):
-                try:
-                    fn(*args)
-                except NotImplementedError:
-                    if fn == load_dh_params:
-                        # Not callable in some builds
-                        load_dh_params = None
-                        raise RuntimeError
-                    else:
-                        raise
-
-    actual_mode = [(a[0], a[1]) for e, a in hook.seen if e == "open" and a[1]]
-    actual_flag = [(a[0], a[2]) for e, a in hook.seen if e == "open" and not a[1]]
-    assertSequenceEqual(
-        [
-            i
-            for i in [
-                (testfn, "r"),
-                (sys.executable, "r"),
-                (3, "w"),
-                (testfn, "w"),
-                (testfn, "rb") if load_dh_params else None,
-                (testfn, "r") if readline else None,
-                ("~/.history", "r") if readline else None,
-                (testfn, "w") if readline else None,
-                ("~/.history", "w") if readline else None,
-                (testfn, "a") if rl("append_history_file") else None,
-                ("~/.history", "a") if rl("append_history_file") else None,
-                (testfn, "r") if readline else None,
-                ("<readline_init_file>", "r") if readline else None,
-            ]
-            if i is not None
-        ],
-        actual_mode,
-    )
-    assertSequenceEqual([], actual_flag)
-
-
-def test_cantrace():
-    traced = []
-
-    def trace(frame, event, *args):
-        if frame.f_code == TestHook.__call__.__code__:
-            traced.append(event)
-
-    old = sys.settrace(trace)
-    try:
-        with TestHook() as hook:
-            # No traced call
-            eval("1")
-
-            # No traced call
-            hook.__cantrace__ = False
-            eval("2")
-
-            # One traced call
-            hook.__cantrace__ = True
-            eval("3")
-
-            # Two traced calls (writing to private member, eval)
-            hook.__cantrace__ = 1
-            eval("4")
-
-            # One traced call (writing to private member)
-            hook.__cantrace__ = 0
-    finally:
-        sys.settrace(old)
-
-    assertSequenceEqual(["call"] * 4, traced)
-
-
-def test_mmap():
-    import mmap
-
-    with TestHook() as hook:
-        mmap.mmap(-1, 8)
-        assertEqual(hook.seen[0][1][:2], (-1, 8))
-
-
-def test_ctypes_call_function():
-    import ctypes
-    import _ctypes
-
-    with TestHook() as hook:
-        _ctypes.call_function(ctypes._memmove_addr, (0, 0, 0))
-        assert ("ctypes.call_function", (ctypes._memmove_addr, (0, 0, 0))) in hook.seen, f"{ctypes._memmove_addr=} {hook.seen=}"
-
-        ctypes.CFUNCTYPE(ctypes.c_voidp)(ctypes._memset_addr)(1, 0, 0)
-        assert ("ctypes.call_function", (ctypes._memset_addr, (1, 0, 0))) in hook.seen, f"{ctypes._memset_addr=} {hook.seen=}"
-
-    with TestHook() as hook:
-        ctypes.cast(ctypes.c_voidp(0), ctypes.POINTER(ctypes.c_char))
-        assert "ctypes.call_function" in hook.seen_events
-
-    with TestHook() as hook:
-        ctypes.string_at(id("ctypes.string_at") + 40)
-        assert "ctypes.call_function" in hook.seen_events
-        assert "ctypes.string_at" in hook.seen_events
-
-
-def test_posixsubprocess():
-    import multiprocessing.util
-
-    exe = b"xxx"
-    args = [b"yyy", b"zzz"]
-    with TestHook() as hook:
-        multiprocessing.util.spawnv_passfds(exe, args, ())
-        assert ("_posixsubprocess.fork_exec", ([exe], args, None)) in hook.seen
-
-
-def test_excepthook():
-    def excepthook(exc_type, exc_value, exc_tb):
-        if exc_type is not RuntimeError:
-            sys.__excepthook__(exc_type, exc_value, exc_tb)
-
-    def hook(event, args):
-        if event == "sys.excepthook":
-            if not isinstance(args[2], args[1]):
-                raise TypeError(f"Expected isinstance({args[2]!r}, " f"{args[1]!r})")
-            if args[0] != excepthook:
-                raise ValueError(f"Expected {args[0]} == {excepthook}")
-            print(event, repr(args[2]))
-
-    sys.addaudithook(hook)
-    sys.excepthook = excepthook
-    raise RuntimeError("fatal-error")
-
-
-def test_unraisablehook():
-    from _testcapi import err_formatunraisable
-
-    def unraisablehook(hookargs):
-        pass
-
-    def hook(event, args):
-        if event == "sys.unraisablehook":
-            if args[0] != unraisablehook:
-                raise ValueError(f"Expected {args[0]} == {unraisablehook}")
-            print(event, repr(args[1].exc_value), args[1].err_msg)
-
-    sys.addaudithook(hook)
-    sys.unraisablehook = unraisablehook
-    err_formatunraisable(RuntimeError("nonfatal-error"),
-                         "Exception ignored for audit hook test")
-
-
-def test_winreg():
-    from winreg import OpenKey, EnumKey, CloseKey, HKEY_LOCAL_MACHINE
-
-    def hook(event, args):
-        if not event.startswith("winreg."):
-            return
-        print(event, *args)
-
-    sys.addaudithook(hook)
-
-    k = OpenKey(HKEY_LOCAL_MACHINE, "Software")
-    EnumKey(k, 0)
-    try:
-        EnumKey(k, 10000)
-    except OSError:
-        pass
-    else:
-        raise RuntimeError("Expected EnumKey(HKLM, 10000) to fail")
-
-    kv = k.Detach()
-    CloseKey(kv)
-
-
-def test_socket():
-    import socket
-
-    def hook(event, args):
-        if event.startswith("socket."):
-            print(event, *args)
-
-    sys.addaudithook(hook)
-
-    socket.gethostname()
-
-    # Don't care if this fails, we just want the audit message
-    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
-    try:
-        # Don't care if this fails, we just want the audit message
-        sock.bind(('127.0.0.1', 8080))
-    except Exception:
-        pass
-    finally:
-        sock.close()
-
-
-def test_gc():
-    import gc
-
-    def hook(event, args):
-        if event.startswith("gc."):
-            print(event, *args)
-
-    sys.addaudithook(hook)
-
-    gc.get_objects(generation=1)
-
-    x = object()
-    y = [x]
-
-    gc.get_referrers(x)
-    gc.get_referents(y)
-
-
-def test_http_client():
-    import http.client
-
-    def hook(event, args):
-        if event.startswith("http.client."):
-            print(event, *args[1:])
-
-    sys.addaudithook(hook)
-
-    conn = http.client.HTTPConnection('www.python.org')
-    try:
-        conn.request('GET', '/')
-    except OSError:
-        print('http.client.send', '[cannot send]')
-    finally:
-        conn.close()
-
-
-def test_sqlite3():
-    import sqlite3
-
-    def hook(event, *args):
-        if event.startswith("sqlite3."):
-            print(event, *args)
-
-    sys.addaudithook(hook)
-    cx1 = sqlite3.connect(":memory:")
-    cx2 = sqlite3.Connection(":memory:")
-
-    # Configured without --enable-loadable-sqlite-extensions
-    try:
-        if hasattr(sqlite3.Connection, "enable_load_extension"):
-            cx1.enable_load_extension(False)
-            try:
-                cx1.load_extension("test")
-            except sqlite3.OperationalError:
-                pass
-            else:
-                raise RuntimeError("Expected sqlite3.load_extension to fail")
-    finally:
-        cx1.close()
-        cx2.close()
-
-def test_sys_getframe():
-    import sys
-
-    def hook(event, args):
-        if event.startswith("sys."):
-            print(event, args[0].f_code.co_name)
-
-    sys.addaudithook(hook)
-    sys._getframe()
-
-
-def test_sys_getframemodulename():
-    import sys
-
-    def hook(event, args):
-        if event.startswith("sys."):
-            print(event, *args)
-
-    sys.addaudithook(hook)
-    sys._getframemodulename()
-
-
-def test_threading():
-    import _thread
-
-    def hook(event, args):
-        if event.startswith(("_thread.", "cpython.PyThreadState", "test.")):
-            print(event, args)
-
-    sys.addaudithook(hook)
-
-    lock = _thread.allocate_lock()
-    lock.acquire()
-
-    class test_func:
-        def __repr__(self): return "<test_func>"
-        def __call__(self):
-            sys.audit("test.test_func")
-            lock.release()
-
-    i = _thread.start_new_thread(test_func(), ())
-    lock.acquire()
-
-    handle = _thread.start_joinable_thread(test_func())
-    handle.join()
-
-
-def test_threading_abort():
-    # Ensures that aborting PyThreadState_New raises the correct exception
-    import _thread
-
-    class ThreadNewAbortError(Exception):
-        pass
-
-    def hook(event, args):
-        if event == "cpython.PyThreadState_New":
-            raise ThreadNewAbortError()
-
-    sys.addaudithook(hook)
-
-    try:
-        _thread.start_new_thread(lambda: None, ())
-    except ThreadNewAbortError:
-        # Other exceptions are raised and the test will fail
-        pass
-
-
-def test_wmi_exec_query():
-    import _wmi
-
-    def hook(event, args):
-        if event.startswith("_wmi."):
-            print(event, args[0])
-
-    sys.addaudithook(hook)
-    try:
-        _wmi.exec_query("SELECT * FROM Win32_OperatingSystem")
-    except WindowsError as e:
-        # gh-112278: WMI may be slow response when first called, but we still
-        # get the audit event, so just ignore the timeout
-        if e.winerror != 258:
-            raise
-
-def test_syslog():
-    import syslog
-
-    def hook(event, args):
-        if event.startswith("syslog."):
-            print(event, *args)
-
-    sys.addaudithook(hook)
-    syslog.openlog('python')
-    syslog.syslog('test')
-    syslog.setlogmask(syslog.LOG_DEBUG)
-    syslog.closelog()
-    # implicit open
-    syslog.syslog('test2')
-    # open with default ident
-    syslog.openlog(logoption=syslog.LOG_NDELAY, facility=syslog.LOG_LOCAL0)
-    sys.argv = None
-    syslog.openlog()
-    syslog.closelog()
-
-
-def test_not_in_gc():
-    import gc
-
-    hook = lambda *a: None
-    sys.addaudithook(hook)
-
-    for o in gc.get_objects():
-        if isinstance(o, list):
-            assert hook not in o
-
-
-def test_time(mode):
-    import time
-
-    def hook(event, args):
-        if event.startswith("time."):
-            if mode == 'print':
-                print(event, *args)
-            elif mode == 'fail':
-                raise AssertionError('hook failed')
-    sys.addaudithook(hook)
-
-    time.sleep(0)
-    time.sleep(0.0625)  # 1/16, a small exact float
-    try:
-        time.sleep(-1)
-    except ValueError:
-        pass
-
-def test_sys_monitoring_register_callback():
-    import sys
-
-    def hook(event, args):
-        if event.startswith("sys.monitoring"):
-            print(event, args)
-
-    sys.addaudithook(hook)
-    sys.monitoring.register_callback(1, 1, None)
-
-
-def test_winapi_createnamedpipe(pipe_name):
-    import _winapi
-
-    def hook(event, args):
-        if event == "_winapi.CreateNamedPipe":
-            print(event, args)
-
-    sys.addaudithook(hook)
-    _winapi.CreateNamedPipe(pipe_name, _winapi.PIPE_ACCESS_DUPLEX, 8, 2, 0, 0, 0, 0)
-
-
-def test_assert_unicode():
-    import sys
-    sys.addaudithook(lambda *args: None)
-    try:
-        sys.audit(9)
-    except TypeError:
-        pass
-    else:
-        raise RuntimeError("Expected sys.audit(9) to fail.")
-
-def test_sys_remote_exec():
-    import tempfile
-
-    pid = os.getpid()
-    event_pid = -1
-    event_script_path = ""
-    remote_event_script_path = ""
-    def hook(event, args):
-        if event not in ["sys.remote_exec", "cpython.remote_debugger_script"]:
-            return
-        print(event, args)
-        match event:
-            case "sys.remote_exec":
-                nonlocal event_pid, event_script_path
-                event_pid = args[0]
-                event_script_path = args[1]
-            case "cpython.remote_debugger_script":
-                nonlocal remote_event_script_path
-                remote_event_script_path = args[0]
-
-    sys.addaudithook(hook)
-    with tempfile.NamedTemporaryFile(mode='w+', delete=True) as tmp_file:
-        tmp_file.write("a = 1+1\n")
-        tmp_file.flush()
-        sys.remote_exec(pid, tmp_file.name)
-        assertEqual(event_pid, pid)
-        assertEqual(event_script_path, tmp_file.name)
-        assertEqual(remote_event_script_path, tmp_file.name)
-
-if __name__ == "__main__":
-    from test.support import suppress_msvcrt_asserts
-
-    suppress_msvcrt_asserts()
-
-    test = sys.argv[1]
-    globals()[test](*sys.argv[2:])
--- a/Lib/test/datetimetester.py
+++ b/Lib/test/datetimetester.py
@@ -47,11 +47,7 @@ import _strptime
 try:
    import _pydatetime
 except ImportError:
-    _pydatetime = None
-try:
-    import _datetime
-except ImportError:
-    _datetime = None
+    pass
 #

 pickle_loads = {pickle.loads, pickle._loads}
@@ -3015,6 +3011,7 @@ class TestDateTime(TestDate):
            self.assertEqual(t.strftime("%z"), "-0200" + z)
            self.assertEqual(t.strftime("%:z"), "-02:00:" + z)

+    @unittest.skip("TODO: RUSTPYTHON")
    def test_strftime_special(self):
        t = self.theclass(2004, 12, 31, 6, 22, 33, 47)
        s1 = t.strftime('%c')
@@ -3882,6 +3879,7 @@ class TestTime(HarmlessMixedComparison, unittest.TestCase):
        # gh-85432: The parameter was named "fmt" in the pure-Python impl.
        t.strftime(format="%f")

+    @unittest.skip("TODO: RUSTPYTHON")
    def test_strftime_special(self):
        t = self.theclass(1, 2, 3, 4)
        s1 = t.strftime('%I%p%Z')
@@ -4362,6 +4360,7 @@ class TestTimeTZ(TestTime, TZInfoBase, unittest.TestCase):
        self.assertEqual(t.microsecond, 0)
        self.assertIsNone(t.tzinfo)

+    @unittest.skip("TODO: RUSTPYTHON")
    def test_zones(self):
        est = FixedOffset(-300, "EST", 1)
        utc = FixedOffset(0, "UTC", -2)
--- a/Lib/test/exception_hierarchy.txt
+++ b/Lib/test/exception_hierarchy.txt
@@ -40,7 +40,6 @@ BaseException
      ├── ReferenceError
      ├── RuntimeError
      │    ├── NotImplementedError
-      │    ├── PythonFinalizationError
      │    └── RecursionError
      ├── StopAsyncIteration
      ├── StopIteration
--- a/Lib/test/picklecommon.py
+++ b/Lib/test/picklecommon.py
@@ -1,390 +0,0 @@
-# Classes used for pickle testing.
-# They are moved to separate file, so they can be loaded
-# in other Python version for test_xpickle.
-
-import sys
-
-class C:
-    def __eq__(self, other):
-        return self.__dict__ == other.__dict__
-
-# For test_load_classic_instance
-class D(C):
-    def __init__(self, arg):
-        pass
-
-class E(C):
-    def __getinitargs__(self):
-        return ()
-
-import __main__
-__main__.C = C
-C.__module__ = "__main__"
-__main__.D = D
-D.__module__ = "__main__"
-__main__.E = E
-E.__module__ = "__main__"
-
-# Simple mutable object.
-class Object(object):
-    pass
-
-# Hashable immutable key object containing unheshable mutable data.
-class K:
-    def __init__(self, value):
-        self.value = value
-
-    def __reduce__(self):
-        # Shouldn't support the recursion itself
-        return K, (self.value,)
-
-class WithSlots(object):
-    __slots__ = ('a', 'b')
-
-class WithSlotsSubclass(WithSlots):
-    __slots__ = ('c',)
-
-class WithSlotsAndDict(object):
-    __slots__ = ('a', '__dict__')
-
-class WithPrivateAttrs(object):
-    def __init__(self, a):
-        self.__private = a
-    def get(self):
-        return self.__private
-
-class WithPrivateAttrsSubclass(WithPrivateAttrs):
-    def __init__(self, a, b):
-        super().__init__(a)
-        self.__private = b
-    def get2(self):
-        return self.__private
-
-class WithPrivateSlots(object):
-    __slots__ = ('__private',)
-    def __init__(self, a):
-        self.__private = a
-    def get(self):
-        return self.__private
-
-class WithPrivateSlotsSubclass(WithPrivateSlots):
-    __slots__ = ('__private',)
-    def __init__(self, a, b):
-        super().__init__(a)
-        self.__private = b
-    def get2(self):
-        return self.__private
-
-# For test_misc
-class myint(int):
-    def __init__(self, x):
-        self.str = str(x)
-
-# For test_misc and test_getinitargs
-class initarg(C):
-
-    def __init__(self, a, b):
-        self.a = a
-        self.b = b
-
-    def __getinitargs__(self):
-        return self.a, self.b
-
-# For test_metaclass
-class metaclass(type):
-    pass
-
-if sys.version_info >= (3,):
-    # Syntax not compatible with Python 2
-    exec('''
-class use_metaclass(object, metaclass=metaclass):
-    pass
-''')
-else:
-    class use_metaclass(object):
-        __metaclass__ = metaclass
-
-
-# Test classes for reduce_ex
-
-class R:
-    def __init__(self, reduce=None):
-        self.reduce = reduce
-    def __reduce__(self, proto):
-        return self.reduce
-
-class REX:
-    def __init__(self, reduce_ex=None):
-        self.reduce_ex = reduce_ex
-    def __reduce_ex__(self, proto):
-        return self.reduce_ex
-
-class REX_one(object):
-    """No __reduce_ex__ here, but inheriting it from object"""
-    _reduce_called = 0
-    def __reduce__(self):
-        self._reduce_called = 1
-        return REX_one, ()
-
-class REX_two(object):
-    """No __reduce__ here, but inheriting it from object"""
-    _proto = None
-    def __reduce_ex__(self, proto):
-        self._proto = proto
-        return REX_two, ()
-
-class REX_three(object):
-    _proto = None
-    def __reduce_ex__(self, proto):
-        self._proto = proto
-        return REX_two, ()
-    def __reduce__(self):
-        raise AssertionError("This __reduce__ shouldn't be called")
-
-class REX_four(object):
-    """Calling base class method should succeed"""
-    _proto = None
-    def __reduce_ex__(self, proto):
-        self._proto = proto
-        return object.__reduce_ex__(self, proto)
-
-class REX_five(object):
-    """This one used to fail with infinite recursion"""
-    _reduce_called = 0
-    def __reduce__(self):
-        self._reduce_called = 1
-        return object.__reduce__(self)
-
-class REX_six(object):
-    """This class is used to check the 4th argument (list iterator) of
-    the reduce protocol.
-    """
-    def __init__(self, items=None):
-        self.items = items if items is not None else []
-    def __eq__(self, other):
-        return type(self) is type(other) and self.items == other.items
-    def append(self, item):
-        self.items.append(item)
-    def __reduce__(self):
-        return type(self), (), None, iter(self.items), None
-
-class REX_seven(object):
-    """This class is used to check the 5th argument (dict iterator) of
-    the reduce protocol.
-    """
-    def __init__(self, table=None):
-        self.table = table if table is not None else {}
-    def __eq__(self, other):
-        return type(self) is type(other) and self.table == other.table
-    def __setitem__(self, key, value):
-        self.table[key] = value
-    def __reduce__(self):
-        return type(self), (), None, None, iter(self.table.items())
-
-class REX_state(object):
-    """This class is used to check the 3th argument (state) of
-    the reduce protocol.
-    """
-    def __init__(self, state=None):
-        self.state = state
-    def __eq__(self, other):
-        return type(self) is type(other) and self.state == other.state
-    def __setstate__(self, state):
-        self.state = state
-    def __reduce__(self):
-        return type(self), (), self.state
-
-# For test_reduce_ex_None
-class REX_None:
-    """ Setting __reduce_ex__ to None should fail """
-    __reduce_ex__ = None
-
-# For test_reduce_None
-class R_None:
-    """ Setting __reduce__ to None should fail """
-    __reduce__ = None
-
-# For test_pickle_setstate_None
-class C_None_setstate:
-    """  Setting __setstate__ to None should fail """
-    def __getstate__(self):
-        return 1
-
-    __setstate__ = None
-
-
-# Test classes for newobj
-
-# For test_newobj_generic and test_newobj_proxies
-
-class MyInt(int):
-    sample = 1
-
-if sys.version_info >= (3,):
-    class MyLong(int):
-        sample = 1
-else:
-    class MyLong(long):
-        sample = long(1)
-
-class MyFloat(float):
-    sample = 1.0
-
-class MyComplex(complex):
-    sample = 1.0 + 0.0j
-
-class MyStr(str):
-    sample = "hello"
-
-if sys.version_info >= (3,):
-    class MyUnicode(str):
-        sample = "hello \u1234"
-else:
-    class MyUnicode(unicode):
-        sample = unicode(r"hello \u1234", "raw-unicode-escape")
-
-class MyTuple(tuple):
-    sample = (1, 2, 3)
-
-class MyList(list):
-    sample = [1, 2, 3]
-
-class MyDict(dict):
-    sample = {"a": 1, "b": 2}
-
-class MySet(set):
-    sample = {"a", "b"}
-
-class MyFrozenSet(frozenset):
-    sample = frozenset({"a", "b"})
-
-myclasses = [MyInt, MyLong, MyFloat,
-             MyComplex,
-             MyStr, MyUnicode,
-             MyTuple, MyList, MyDict, MySet, MyFrozenSet]
-
-# For test_newobj_overridden_new
-class MyIntWithNew(int):
-    def __new__(cls, value):
-        raise AssertionError
-
-class MyIntWithNew2(MyIntWithNew):
-    __new__ = int.__new__
-
-
-# For test_newobj_list_slots
-class SlotList(MyList):
-    __slots__ = ["foo"]
-
-# Ruff "redefined while unused" false positive here due to `global` variables
-# being assigned (and then restored) from within test methods earlier in the file
-class SimpleNewObj(int):  # noqa: F811
-    def __init__(self, *args, **kwargs):
-        # raise an error, to make sure this isn't called
-        raise TypeError("SimpleNewObj.__init__() didn't expect to get called")
-    def __eq__(self, other):
-        return int(self) == int(other) and self.__dict__ == other.__dict__
-
-class ComplexNewObj(SimpleNewObj):
-    def __getnewargs__(self):
-        return ('%X' % self, 16)
-
-class ComplexNewObjEx(SimpleNewObj):
-    def __getnewargs_ex__(self):
-        return ('%X' % self,), {'base': 16}
-
-
-class ZeroCopyBytes(bytes):
-    readonly = True
-    c_contiguous = True
-    f_contiguous = True
-    zero_copy_reconstruct = True
-
-    def __reduce_ex__(self, protocol):
-        if protocol >= 5:
-            import pickle
-            return type(self)._reconstruct, (pickle.PickleBuffer(self),), None
-        else:
-            return type(self)._reconstruct, (bytes(self),)
-
-    def __repr__(self):
-        return "{}({!r})".format(self.__class__.__name__, bytes(self))
-
-    __str__ = __repr__
-
-    @classmethod
-    def _reconstruct(cls, obj):
-        with memoryview(obj) as m:
-            obj = m.obj
-            if type(obj) is cls:
-                # Zero-copy
-                return obj
-            else:
-                return cls(obj)
-
-
-class ZeroCopyBytearray(bytearray):
-    readonly = False
-    c_contiguous = True
-    f_contiguous = True
-    zero_copy_reconstruct = True
-
-    def __reduce_ex__(self, protocol):
-        if protocol >= 5:
-            import pickle
-            return type(self)._reconstruct, (pickle.PickleBuffer(self),), None
-        else:
-            return type(self)._reconstruct, (bytes(self),)
-
-    def __repr__(self):
-        return "{}({!r})".format(self.__class__.__name__, bytes(self))
-
-    __str__ = __repr__
-
-    @classmethod
-    def _reconstruct(cls, obj):
-        with memoryview(obj) as m:
-            obj = m.obj
-            if type(obj) is cls:
-                # Zero-copy
-                return obj
-            else:
-                return cls(obj)
-
-
-# For test_nested_names
-class Nested:
-    class A:
-        class B:
-            class C:
-                pass
-
-# For test_py_methods
-class PyMethodsTest:
-    @staticmethod
-    def cheese():
-        return "cheese"
-    @classmethod
-    def wine(cls):
-        assert cls is PyMethodsTest
-        return "wine"
-    def biscuits(self):
-        assert isinstance(self, PyMethodsTest)
-        return "biscuits"
-    class Nested:
-        "Nested class"
-        @staticmethod
-        def ketchup():
-            return "ketchup"
-        @classmethod
-        def maple(cls):
-            assert cls is PyMethodsTest.Nested
-            return "maple"
-        def pie(self):
-            assert isinstance(self, PyMethodsTest.Nested)
-            return "pie"
-
-# For test_c_methods
-class Subclass(tuple):
-    class Nested(str):
-        pass
--- a/Lib/test/pickletester.py
+++ b/Lib/test/pickletester.py
--- a/Lib/test/re_tests.py
+++ b/Lib/test/re_tests.py
@@ -531,7 +531,7 @@ xyzabc
    (r'a[ ]*?\ (\d+).*', 'a   10', SUCCEED, 'found', 'a   10'),
    (r'a[ ]*?\ (\d+).*', 'a    10', SUCCEED, 'found', 'a    10'),
    # bug 127259: \Z shouldn't depend on multiline mode
-    (r'(?ms).*?x\s*\z(.*)','xx\nx\n', SUCCEED, 'g1', ''),
+    (r'(?ms).*?x\s*\Z(.*)','xx\nx\n', SUCCEED, 'g1', ''),
    # bug 128899: uppercase literals under the ignorecase flag
    (r'(?i)M+', 'MMM', SUCCEED, 'found', 'MMM'),
    (r'(?i)m+', 'MMM', SUCCEED, 'found', 'MMM'),
--- a/Lib/test/seq_tests.py
+++ b/Lib/test/seq_tests.py
@@ -261,20 +261,23 @@ class CommonTest(unittest.TestCase):
        self.assertEqual(min(u), 0)
        self.assertEqual(max(u), 2)

-    def test_add(self):
+    def test_addmul(self):
        u1 = self.type2test([0])
        u2 = self.type2test([0, 1])
        self.assertEqual(u1, u1 + self.type2test())
        self.assertEqual(u1, self.type2test() + u1)
        self.assertEqual(u1 + self.type2test([1]), u2)
        self.assertEqual(self.type2test([-1]) + u1, self.type2test([-1, 0]))
-
-    def test_mul(self):
-        u2 = self.type2test([0, 1])
+        self.assertEqual(self.type2test(), u2*0)
+        self.assertEqual(self.type2test(), 0*u2)
        self.assertEqual(self.type2test(), u2*0)
        self.assertEqual(self.type2test(), 0*u2)
        self.assertEqual(u2, u2*1)
        self.assertEqual(u2, 1*u2)
+        self.assertEqual(u2, u2*1)
+        self.assertEqual(u2, 1*u2)
+        self.assertEqual(u2+u2, u2*2)
+        self.assertEqual(u2+u2, 2*u2)
        self.assertEqual(u2+u2, u2*2)
        self.assertEqual(u2+u2, 2*u2)
        self.assertEqual(u2+u2+u2, u2*3)
@@ -283,9 +286,8 @@ class CommonTest(unittest.TestCase):
        class subclass(self.type2test):
            pass
        u3 = subclass([0, 1])
-        r = u3*1
-        self.assertEqual(r, u3)
-        self.assertIsNot(r, u3)
+        self.assertEqual(u3, u3*1)
+        self.assertIsNot(u3, u3*1)

    def test_iadd(self):
        u = self.type2test([0, 1])
@@ -346,21 +348,6 @@ class CommonTest(unittest.TestCase):
        self.assertRaises(ValueError, a.__getitem__, slice(0, 10, 0))
        self.assertRaises(TypeError, a.__getitem__, 'x')

-    def _assert_cmp(self, a, b, r):
-        self.assertIs(a == b, r == 0)
-        self.assertIs(a != b, r != 0)
-        self.assertIs(a > b, r > 0)
-        self.assertIs(a <= b, r <= 0)
-        self.assertIs(a < b, r < 0)
-        self.assertIs(a >= b, r >= 0)
-
-    def test_cmp(self):
-        a = self.type2test([0, 1])
-        self._assert_cmp(a, a, 0)
-        self._assert_cmp(a, self.type2test([0, 1]), 0)
-        self._assert_cmp(a, self.type2test([0]), 1)
-        self._assert_cmp(a, self.type2test([0, 2]), -1)
-
    def test_count(self):
        a = self.type2test([0, 1, 2])*3
        self.assertEqual(a.count(0), 3)
@@ -439,7 +426,7 @@ class CommonTest(unittest.TestCase):
            self.assertEqual(lst2, lst)
            self.assertNotEqual(id(lst2), id(lst))

-    @unittest.skip("TODO: RUSTPYTHON; hangs")
+    @unittest.expectedFailure  # TODO: RUSTPYTHON
    def test_free_after_iterating(self):
        support.check_free_after_iterating(self, iter, self.type2test)
        support.check_free_after_iterating(self, reversed, self.type2test)
--- a/Lib/test/string_tests.py
+++ b/Lib/test/string_tests.py
@@ -90,55 +90,6 @@ class BaseTest:
        args = self.fixtype(args)
        getattr(obj, methodname)(*args)

-    def _get_teststrings(self, charset, digits):
-        base = len(charset)
-        teststrings = set()
-        for i in range(base ** digits):
-            entry = []
-            for j in range(digits):
-                i, m = divmod(i, base)
-                entry.append(charset[m])
-            teststrings.add(''.join(entry))
-        teststrings = [self.fixtype(ts) for ts in teststrings]
-        return teststrings
-
-    def test_add(self):
-        s = self.fixtype('ab')
-        self.assertEqual(s + self.fixtype(''), s)
-        self.assertEqual(self.fixtype('') + s, s)
-        self.assertEqual(s + self.fixtype('cd'), self.fixtype('abcd'))
-
-    def test_mul(self):
-        s = self.fixtype('ab')
-        self.assertEqual(s*0, self.fixtype(''))
-        self.assertEqual(0*s, self.fixtype(''))
-        self.assertEqual(s*1, s)
-        self.assertEqual(1*s, s)
-        self.assertEqual(s*2, self.fixtype('abab'))
-        self.assertEqual(2*s, self.fixtype('abab'))
-
-        class subclass(self.type2test):
-            pass
-        s = subclass(self.fixtype('ab'))
-        r = s*1
-        self.assertEqual(r, s)
-        self.assertIsNot(r, s)
-
-    def _assert_cmp(self, a, b, r):
-        self.assertIs(a == b, r == 0)
-        self.assertIs(a != b, r != 0)
-        self.assertIs(a > b, r > 0)
-        self.assertIs(a <= b, r <= 0)
-        self.assertIs(a < b, r < 0)
-        self.assertIs(a >= b, r >= 0)
-
-    def test_cmp(self):
-        a = self.fixtype('ab')
-        self._assert_cmp(a, a, 0)
-        self._assert_cmp(a, self.fixtype('ab'), 0)
-        self._assert_cmp(a, self.fixtype('a'), 1)
-        self._assert_cmp(a, self.fixtype('ac'), -1)
-
    def test_count(self):
        self.checkequal(3, 'aaa', 'count', 'a')
        self.checkequal(0, 'aaa', 'count', 'b')
@@ -179,7 +130,17 @@ class BaseTest:
        # For a variety of combinations,
        #    verify that str.count() matches an equivalent function
        #    replacing all occurrences and then differencing the string lengths
-        teststrings = self._get_teststrings(['', 'a', 'b'], 7)
+        charset = ['', 'a', 'b']
+        digits = 7
+        base = len(charset)
+        teststrings = set()
+        for i in range(base ** digits):
+            entry = []
+            for j in range(digits):
+                i, m = divmod(i, base)
+                entry.append(charset[m])
+            teststrings.add(''.join(entry))
+        teststrings = [self.fixtype(ts) for ts in teststrings]
        for i in teststrings:
            n = len(i)
            for j in teststrings:
@@ -236,7 +197,17 @@ class BaseTest:
        # For a variety of combinations,
        #    verify that str.find() matches __contains__
        #    and that the found substring is really at that location
-        teststrings = self._get_teststrings(['', 'a', 'b', 'c'], 5)
+        charset = ['', 'a', 'b', 'c']
+        digits = 5
+        base = len(charset)
+        teststrings = set()
+        for i in range(base ** digits):
+            entry = []
+            for j in range(digits):
+                i, m = divmod(i, base)
+                entry.append(charset[m])
+            teststrings.add(''.join(entry))
+        teststrings = [self.fixtype(ts) for ts in teststrings]
        for i in teststrings:
            for j in teststrings:
                loc = i.find(j)
@@ -273,7 +244,17 @@ class BaseTest:
        # For a variety of combinations,
        #    verify that str.rfind() matches __contains__
        #    and that the found substring is really at that location
-        teststrings = self._get_teststrings(['', 'a', 'b', 'c'], 5)
+        charset = ['', 'a', 'b', 'c']
+        digits = 5
+        base = len(charset)
+        teststrings = set()
+        for i in range(base ** digits):
+            entry = []
+            for j in range(digits):
+                i, m = divmod(i, base)
+                entry.append(charset[m])
+            teststrings.add(''.join(entry))
+        teststrings = [self.fixtype(ts) for ts in teststrings]
        for i in teststrings:
            for j in teststrings:
                loc = i.rfind(j)
@@ -314,19 +295,6 @@ class BaseTest:
        else:
            self.checkraises(TypeError, 'hello', 'index', 42)

-        # For a variety of combinations,
-        #    verify that str.index() matches __contains__
-        #    and that the found substring is really at that location
-        teststrings = self._get_teststrings(['', 'a', 'b', 'c'], 5)
-        for i in teststrings:
-            for j in teststrings:
-                if j in i:
-                    loc = i.index(j)
-                    self.assertGreaterEqual(loc, 0)
-                    self.assertEqual(i[loc:loc+len(j)], j)
-                else:
-                    self.assertRaises(ValueError, i.index, j)
-
    def test_rindex(self):
        self.checkequal(12, 'abcdefghiabc', 'rindex', '')
        self.checkequal(3,  'abcdefghiabc', 'rindex', 'def')
@@ -353,19 +321,6 @@ class BaseTest:
        else:
            self.checkraises(TypeError, 'hello', 'rindex', 42)

-        # For a variety of combinations,
-        #    verify that str.rindex() matches __contains__
-        #    and that the found substring is really at that location
-        teststrings = self._get_teststrings(['', 'a', 'b', 'c'], 5)
-        for i in teststrings:
-            for j in teststrings:
-                if j in i:
-                    loc = i.rindex(j)
-                    self.assertGreaterEqual(loc, 0)
-                    self.assertEqual(i[loc:loc+len(j)], j)
-                else:
-                    self.assertRaises(ValueError, i.rindex, j)
-
    def test_find_periodic_pattern(self):
        """Cover the special path for periodic patterns."""
        def reference_find(p, s):
@@ -482,10 +437,8 @@ class BaseTest:
        self.checkequal('  a\n b', ' \ta\n\tb', 'expandtabs', 1)

        self.checkraises(TypeError, 'hello', 'expandtabs', 42, 42)
-        # TODO: RUSTPYTHON; expandtabs overflow checks
-        # if sys.maxsize < (1 << 32) and struct.calcsize('P') == 4:
-        #
        # This test is only valid when sizeof(int) == sizeof(void*) == 4.
+        # XXX RUSTPYTHON TODO: expandtabs overflow checks
        if sys.maxsize < (1 << 32) and struct.calcsize('P') == 4 and False:
            self.checkraises(OverflowError,
                             '\ta\n\tb', 'expandtabs', sys.maxsize)
@@ -815,15 +768,6 @@ class BaseTest:
        self.checkraises(TypeError, 'hello', 'replace', 42, 'h')
        self.checkraises(TypeError, 'hello', 'replace', 'h', 42)

-    def test_replacement_on_buffer_boundary(self):
-        # gh-127971: Check we don't read past the end of the buffer when a
-        # potential match misses on the last character.
-        any_3_nonblank_codepoints = '!!!'
-        seven_codepoints = any_3_nonblank_codepoints + ' ' + any_3_nonblank_codepoints
-        a = (' ' * 243) + seven_codepoints + (' ' * 7)
-        b = ' ' * 6 + chr(256)
-        a.replace(seven_codepoints, b)
-
    def test_replace_uses_two_way_maxcount(self):
        # Test that maxcount works in _two_way_count in fastsearch.h
        A, B = "A"*1000, "B"*1000
@@ -836,7 +780,7 @@ class BaseTest:
        self.checkequal(AABAA + "ccc",
                        AABAA + ABBA, 'replace', ABBA, "ccc", 2)

-    @unittest.skip("TODO: RUSTPYTHON; may only apply to 32-bit platforms")
+    @unittest.skip("TODO: RUSTPYTHON, may only apply to 32-bit platforms")
    @unittest.skipIf(sys.maxsize > (1 << 32) or struct.calcsize('P') != 4,
                     'only applies to 32-bit platforms')
    def test_replace_overflow(self):
@@ -1190,8 +1134,8 @@ class StringLikeTest(BaseTest):
        self.checkequal('\u2160\u2171\u2172',
                        '\u2170\u2171\u2172', 'capitalize')
        # check with Ll chars with no upper - nothing changes here
-        self.checkequal('\u1d00\u1d86\u0221\u1fb7',
-                        '\u1d00\u1d86\u0221\u1fb7', 'capitalize')
+        self.checkequal('\u019b\u1d00\u1d86\u0221\u1fb7',
+                        '\u019b\u1d00\u1d86\u0221\u1fb7', 'capitalize')

    def test_startswith(self):
        self.checkequal(True, 'hello', 'startswith', 'he')
@@ -1304,7 +1248,9 @@ class StringLikeTest(BaseTest):
        self.checkequal(False, 'asd', '__contains__', 'asdf')
        self.checkequal(False, '', '__contains__', 'asdf')

-    @unittest.expectedFailure  # TODO: RUSTPYTHON
+
+    # TODO: RUSTPYTHON
+    @unittest.expectedFailure
    def test_subscript(self):
        self.checkequal('a', 'abc', '__getitem__', 0)
        self.checkequal('c', 'abc', '__getitem__', -1)
@@ -1346,7 +1292,6 @@ class StringLikeTest(BaseTest):
                                    slice(start, stop, step))

    def test_mul(self):
-        super().test_mul()
        self.checkequal('', 'abc', '__mul__', -1)
        self.checkequal('', 'abc', '__mul__', 0)
        self.checkequal('abc', 'abc', '__mul__', 1)
@@ -1559,7 +1504,8 @@ class StringLikeTest(BaseTest):
        self.checkequal(True, s, 'startswith', 'h', None, -2)
        self.checkequal(False, s, 'startswith', 'x', None, None)

-    @unittest.expectedFailure  # TODO: RUSTPYTHON
+    # TODO: RUSTPYTHON
+    @unittest.expectedFailure
    def test_find_etc_raise_correct_error_messages(self):
        # issue 11828
        s = 'hello'
--- a/Lib/test/support/init.py
+++ b/Lib/test/support/init.py
@@ -548,6 +548,7 @@ def requires_lzma(reason='requires lzma'):
        import lzma
    except ImportError:
        lzma = None
+    lzma = None # XXX: RUSTPYTHON; xz is not supported yet
    return unittest.skipUnless(lzma, reason)

 def requires_zstd(reason='requires zstd'):
@@ -855,6 +856,8 @@ def gc_collect():
    longer than expected.  This function tries its best to force all garbage
    objects to disappear.
    """
+    return # TODO: RUSTPYTHON
+
    import gc
    gc.collect()
    gc.collect()
@@ -862,6 +865,13 @@ def gc_collect():

@contextlib.contextmanager
 def disable_gc():
+    # TODO: RUSTPYTHON; GC is not supported yet
+    try:
+        yield
+    finally:
+        pass
+    return
+
    import gc
    have_gc = gc.isenabled()
    gc.disable()
@@ -1994,6 +2004,10 @@ def _check_tracemalloc():


 def check_free_after_iterating(test, iter, cls, args=()):
+    # TODO: RUSTPYTHON; GC is not supported yet
+    test.assertTrue(False)
+    return
+
    done = False
    def wrapper():
        class A(cls):
@@ -3034,10 +3048,6 @@ def get_signal_name(exitcode):
    except KeyError:
        pass

-    # Format Windows exit status as hexadecimal
-    if 0xC0000000 <= exitcode:
-        return f"0x{exitcode:X}"
-
    return None

 class BrokenIter:
--- a/Lib/test/support/_hypothesis_stubs/init.py
+++ b/Lib/test/support/_hypothesis_stubs/init.py
@@ -1,6 +1,6 @@
-from enum import Enum
 import functools
 import unittest
+from enum import Enum

 __all__ = [
    "given",
--- a/Lib/test/support/ast_helper.py
+++ b/Lib/test/support/ast_helper.py
@@ -1,5 +1,6 @@
 import ast

+
 class ASTTestMixin:
    """Test mixing to have basic assertions for AST nodes."""

--- a/Lib/test/support/asyncore.py
+++ b/Lib/test/support/asyncore.py
@@ -51,17 +51,27 @@ many of the difficult problems for you, making the task of building
 sophisticated high-performance network servers and clients a snap.
 """

+import os
 import select
 import socket
 import sys
 import time
 import warnings
-
-import os
-from errno import EALREADY, EINPROGRESS, EWOULDBLOCK, ECONNRESET, EINVAL, \
-     ENOTCONN, ESHUTDOWN, EISCONN, EBADF, ECONNABORTED, EPIPE, EAGAIN, \
-     errorcode
-
+from errno import (
+    EAGAIN,
+    EALREADY,
+    EBADF,
+    ECONNABORTED,
+    ECONNRESET,
+    EINPROGRESS,
+    EINVAL,
+    EISCONN,
+    ENOTCONN,
+    EPIPE,
+    ESHUTDOWN,
+    EWOULDBLOCK,
+    errorcode,
+)

 _DISCONNECTED = frozenset({ECONNRESET, ENOTCONN, ESHUTDOWN, ECONNABORTED, EPIPE,
                           EBADF})
--- a/Lib/test/support/bytecode_helper.py
+++ b/Lib/test/support/bytecode_helper.py
@@ -1,9 +1,10 @@
 """bytecode_helper - support tools for testing correct bytecode generation"""

-import unittest
 import dis
 import io
 import opcode
+import unittest
+
 try:
    import _testinternalcapi
 except ImportError:
--- a/Lib/test/support/channels.py
+++ b/Lib/test/support/channels.py
@@ -1,18 +1,22 @@
 """Cross-interpreter Channels High Level Module."""

 import time
-import _interpchannels as _channels
 from concurrent.interpreters import _crossinterp
+from concurrent.interpreters._crossinterp import (
+    UNBOUND_ERROR,
+    UNBOUND_REMOVE,
+)
+
+import _interpchannels as _channels

 # aliases:
 from _interpchannels import (
-    ChannelError, ChannelNotFoundError, ChannelClosedError,
-    ChannelEmptyError, ChannelNotEmptyError,
+    ChannelClosedError,
+    ChannelEmptyError,
+    ChannelError,
+    ChannelNotEmptyError,
+    ChannelNotFoundError,
 )
-from concurrent.interpreters._crossinterp import (
-    UNBOUND_ERROR, UNBOUND_REMOVE,
-)
-

 __all__ = [
    'UNBOUND', 'UNBOUND_ERROR', 'UNBOUND_REMOVE',
--- a/Lib/test/support/hashlib_helper.py
+++ b/Lib/test/support/hashlib_helper.py
@@ -2,6 +2,7 @@ import functools
 import hashlib
 import importlib
 import unittest
+
 from test.support.import_helper import import_module

 try:
--- a/Show More
+++ b/Show More