Merge branch 'main' into pythongh-116145

.devcontainer/Dockerfile

@@ -1,4 +1,4 @@
-FROM docker.io/library/fedora:37
+FROM docker.io/library/fedora:40
 
 ENV CC=clang
 

.github/CODEOWNERS

@@ -29,19 +29,21 @@ Objects/type*                 @markshannon
 Objects/codeobject.c          @markshannon
 Objects/frameobject.c         @markshannon
 Objects/call.c                @markshannon
-Python/ceval*.c               @markshannon @gvanrossum
-Python/ceval*.h               @markshannon @gvanrossum
+Python/ceval*.c               @markshannon
+Python/ceval*.h               @markshannon
 Python/compile.c              @markshannon @iritkatriel
 Python/assemble.c             @markshannon @iritkatriel
 Python/flowgraph.c            @markshannon @iritkatriel
 Python/ast_opt.c              @isidentical
-Python/bytecodes.c            @markshannon @gvanrossum
-Python/optimizer*.c           @markshannon @gvanrossum
+Python/bytecodes.c            @markshannon
+Python/optimizer*.c           @markshannon
 Python/optimizer_analysis.c   @Fidget-Spinner
 Python/optimizer_bytecodes.c  @Fidget-Spinner
+Lib/_pyrepl/*                 @pablogsal @lysnikolaou @ambv
 Lib/test/test_patma.py        @brandtbucher
 Lib/test/test_type_*.py       @JelleZijlstra
-Lib/test/test_capi/test_misc.py  @markshannon @gvanrossum
+Lib/test/test_capi/test_misc.py  @markshannon
+Lib/test/test_pyrepl/*        @pablogsal @lysnikolaou @ambv
 Tools/c-analyzer/             @ericsnowcurrently
 
 # dbm
@@ -119,7 +121,7 @@ Python/dynload_*.c            @ericsnowcurrently
 Lib/test/test_module/         @ericsnowcurrently
 Doc/c-api/module.rst          @ericsnowcurrently
 **/*importlib/resources/*     @jaraco @warsaw @FFY00
-**/importlib/metadata/*       @jaraco @warsaw
+**/*importlib/metadata/*       @jaraco @warsaw
 
 # Dates and times
 **/*datetime*                 @pganssle @abalkin
@@ -150,7 +152,7 @@ Include/internal/pycore_time.h  @pganssle @abalkin
 /Lib/test/test_tokenize.py    @pablogsal @lysnikolaou
 
 # Code generator
-/Tools/cases_generator/        @gvanrossum
+/Tools/cases_generator/        @markshannon
 
 # AST
 Python/ast.c                  @isidentical
@@ -243,6 +245,18 @@ Lib/test/support/interpreters/  @ericsnowcurrently
 Modules/_xx*interp*module.c   @ericsnowcurrently
 Lib/test/test_interpreters/   @ericsnowcurrently
 
+# Android
+**/*Android*                  @mhsmith
+**/*android*                  @mhsmith
+
+# iOS (but not termios)
+**/iOS*                       @freakboy3742
+**/ios*                       @freakboy3742
+**/*_iOS*                     @freakboy3742
+**/*_ios*                     @freakboy3742
+**/*-iOS*                     @freakboy3742
+**/*-ios*                     @freakboy3742
+
 # WebAssembly
 /Tools/wasm/                  @brettcannon
 

.github/workflows/build.yml

@@ -8,19 +8,11 @@ on:
   push:
     branches:
     - 'main'
-    - '3.12'
-    - '3.11'
-    - '3.10'
-    - '3.9'
-    - '3.8'
+    - '3.*'
   pull_request:
     branches:
     - 'main'
-    - '3.12'
-    - '3.11'
-    - '3.10'
-    - '3.9'
-    - '3.8'
+    - '3.*'
 
 permissions:
   contents: read
@@ -137,6 +129,7 @@ jobs:
         uses: actions/cache@v4
         with:
           path: config.cache
+          # Include env.pythonLocation in key to avoid changes in environment when setup-python updates Python
           key: ${{ github.job }}-${{ runner.os }}-${{ env.IMAGE_VERSION }}-${{ needs.check_source.outputs.config_hash }}-${{ env.pythonLocation }}
       - name: Install Dependencies
         run: sudo ./.github/workflows/posix-deps-apt.sh
@@ -217,7 +210,7 @@ jobs:
     with:
       config_hash: ${{ needs.check_source.outputs.config_hash }}
       free-threading: true
-      # macos-14 is M1
+      # macos-14-large is Intel with 12 cores (most parallelism)
       os-matrix: '["macos-14"]'
 
   build_ubuntu:
@@ -249,7 +242,7 @@ jobs:
 
   build_ubuntu_ssltests:
     name: 'Ubuntu SSL tests with OpenSSL'
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     timeout-minutes: 60
     needs: check_source
     if: needs.check_source.outputs.run_tests == 'true'
@@ -315,7 +308,7 @@ jobs:
 
   test_hypothesis:
     name: "Hypothesis tests on Ubuntu"
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     timeout-minutes: 60
     needs: check_source
     if: needs.check_source.outputs.run_tests == 'true' && needs.check_source.outputs.run_hypothesis == 'true'
@@ -395,7 +388,7 @@ jobs:
       id: cache-hypothesis-database
       uses: actions/cache@v4
       with:
-        path: ./hypothesis
+        path: ${{ env.CPYTHON_BUILDDIR }}/.hypothesis/
         key: hypothesis-database-${{ github.head_ref || github.run_id }}
         restore-keys: |
           - hypothesis-database-
@@ -423,12 +416,12 @@ jobs:
       if: always()
       with:
         name: hypothesis-example-db
-        path: .hypothesis/examples/
+        path: ${{ env.CPYTHON_BUILDDIR }}/.hypothesis/examples/
 
 
   build_asan:
     name: 'Address sanitizer'
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     timeout-minutes: 60
     needs: check_source
     if: needs.check_source.outputs.run_tests == 'true'
@@ -492,6 +485,8 @@ jobs:
     with:
       config_hash: ${{ needs.check_source.outputs.config_hash }}
       options: ./configure --config-cache --with-thread-sanitizer --with-pydebug
+      suppressions_path: Tools/tsan/supressions.txt
+      tsan_logs_artifact_name: tsan-logs-default
 
   build_tsan_free_threading:
     name: 'Thread sanitizer (free-threading)'
@@ -501,6 +496,8 @@ jobs:
     with:
       config_hash: ${{ needs.check_source.outputs.config_hash }}
       options: ./configure --config-cache --disable-gil --with-thread-sanitizer --with-pydebug
+      suppressions_path: Tools/tsan/suppressions_free_threading.txt
+      tsan_logs_artifact_name: tsan-logs-free-threading
 
   # CIFuzz job based on https://google.github.io/oss-fuzz/getting-started/continuous-integration/
   cifuzz:

.github/workflows/jit.yml

@@ -5,24 +5,45 @@ on:
       - '**jit**'
       - 'Python/bytecodes.c'
       - 'Python/optimizer*.c'
-      - 'Python/optimizer_bytecodes.c'
+      - '!Python/perf_jit_trampoline.c'
+      - '!**/*.md'
+      - '!**/*.ini'
   push:
     paths:
       - '**jit**'
       - 'Python/bytecodes.c'
       - 'Python/optimizer*.c'
-      - 'Python/optimizer_bytecodes.c'
+      - '!Python/perf_jit_trampoline.c'
+      - '!**/*.md'
+      - '!**/*.ini'
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 concurrency:
   group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
   cancel-in-progress: true
 
 jobs:
+  interpreter:
+    name: Interpreter (Debug)
+    runs-on: ubuntu-latest
+    timeout-minutes: 90
+    steps:
+      - uses: actions/checkout@v4
+      - name: Build tier two interpreter
+        run: |
+          ./configure --enable-experimental-jit=interpreter --with-pydebug
+          make all --jobs 4
+      - name: Test tier two interpreter
+        run: |
+          ./python -m test --multiprocess 0 --timeout 4500 --verbose2 --verbose3
   jit:
     name: ${{ matrix.target }} (${{ matrix.debug && 'Debug' || 'Release' }})
+    needs: interpreter
     runs-on: ${{ matrix.runner }}
-    timeout-minutes: 60
+    timeout-minutes: 90
     strategy:
       fail-fast: false
       matrix:
@@ -40,7 +61,7 @@ jobs:
           - true
           - false
         llvm:
-          - 16
+          - 18
         include:
           - target: i686-pc-windows-msvc/msvc
             architecture: Win32
@@ -74,14 +95,10 @@ jobs:
             architecture: aarch64
             runner: ubuntu-latest
             compiler: gcc
-            # These fail because of emulation, not because of the JIT:
-            exclude: test_unix_events test_init test_process_pool test_shutdown test_multiprocessing_fork test_cmd_line test_faulthandler test_os test_perf_profiler test_posix test_signal test_socket test_subprocess test_threading test_venv test_external_inspection
           - target: aarch64-unknown-linux-gnu/clang
             architecture: aarch64
             runner: ubuntu-latest
             compiler: clang
-            # These fail because of emulation, not because of the JIT:
-            exclude: test_unix_events test_init test_process_pool test_shutdown test_multiprocessing_fork test_cmd_line test_faulthandler test_os test_perf_profiler test_posix test_signal test_socket test_subprocess test_threading test_venv test_external_inspection
     env:
       CC: ${{ matrix.compiler }}
     steps:
@@ -93,37 +110,43 @@ jobs:
       - name: Native Windows
         if: runner.os == 'Windows' && matrix.architecture != 'ARM64'
         run: |
+          choco upgrade llvm -y
           choco install llvm --allow-downgrade --no-progress --version ${{ matrix.llvm }}
           ./PCbuild/build.bat --experimental-jit ${{ matrix.debug && '-d' || '--pgo' }} -p ${{ matrix.architecture }}
-          ./PCbuild/rt.bat ${{ matrix.debug && '-d' }} -p ${{ matrix.architecture }} -q --exclude ${{ matrix.exclude }} --multiprocess 0 --timeout 3600 --verbose2 --verbose3
+          ./PCbuild/rt.bat ${{ matrix.debug && '-d' || '' }} -p ${{ matrix.architecture }} -q --multiprocess 0 --timeout 4500 --verbose2 --verbose3
 
       # No PGO or tests (yet):
       - name: Emulated Windows
         if: runner.os == 'Windows' && matrix.architecture == 'ARM64'
         run: |
+          choco upgrade llvm -y
           choco install llvm --allow-downgrade --no-progress --version ${{ matrix.llvm }}
           ./PCbuild/build.bat --experimental-jit ${{ matrix.debug && '-d' || '' }} -p ${{ matrix.architecture }}
 
       - name: Native macOS
         if: runner.os == 'macOS'
         run: |
+          brew update
           brew install llvm@${{ matrix.llvm }}
           SDKROOT="$(xcrun --show-sdk-path)" \
             ./configure --enable-experimental-jit ${{ matrix.debug && '--with-pydebug' || '--enable-optimizations --with-lto' }}
           make all --jobs 4
-          ./python.exe -m test --exclude ${{ matrix.exclude }} --multiprocess 0 --timeout 3600 --verbose2 --verbose3
+          ./python.exe -m test --multiprocess 0 --timeout 4500 --verbose2 --verbose3
 
+      # --with-lto has been removed temporarily as a result of an open issue in LLVM 18 (see https://github.com/llvm/llvm-project/issues/87553)
       - name: Native Linux
         if: runner.os == 'Linux' && matrix.architecture == 'x86_64'
         run: |
           sudo bash -c "$(wget -O - https://apt.llvm.org/llvm.sh)" ./llvm.sh ${{ matrix.llvm }}
           export PATH="$(llvm-config-${{ matrix.llvm }} --bindir):$PATH"
-          ./configure --enable-experimental-jit ${{ matrix.debug && '--with-pydebug' || '--enable-optimizations --with-lto' }}
+          ./configure --enable-experimental-jit ${{ matrix.debug && '--with-pydebug' || '--enable-optimizations' }}
           make all --jobs 4
-          ./python -m test --exclude ${{ matrix.exclude }} --multiprocess 0 --timeout 3600 --verbose2 --verbose3
+          ./python -m test --multiprocess 0 --timeout 4500 --verbose2 --verbose3
 
+      # --with-lto has been removed temporarily as a result of an open issue in LLVM 18 (see https://github.com/llvm/llvm-project/issues/87553)
       - name: Emulated Linux
         if: runner.os == 'Linux' && matrix.architecture != 'x86_64'
+        # The --ignorefile on ./python -m test is used to exclude tests known to fail when running on an emulated Linux.
         run: |
           sudo bash -c "$(wget -O - https://apt.llvm.org/llvm.sh)" ./llvm.sh ${{ matrix.llvm }}
           export PATH="$(llvm-config-${{ matrix.llvm }} --bindir):$PATH"
@@ -138,6 +161,25 @@ jobs:
           CC="${{ matrix.compiler == 'clang' && 'clang --target=$HOST' || '$HOST-gcc' }}" \
             CPP="$CC --preprocess" \
             HOSTRUNNER=qemu-${{ matrix.architecture }} \
-            ./configure --enable-experimental-jit ${{ matrix.debug && '--with-pydebug' || '--enable-optimizations --with-lto' }} --build=x86_64-linux-gnu --host="$HOST" --with-build-python=../build/bin/python3 --with-pkg-config=no ac_cv_buggy_getaddrinfo=no ac_cv_file__dev_ptc=no ac_cv_file__dev_ptmx=yes
+            ./configure --enable-experimental-jit ${{ matrix.debug && '--with-pydebug' || '--enable-optimizations ' }} --build=x86_64-linux-gnu --host="$HOST" --with-build-python=../build/bin/python3 --with-pkg-config=no ac_cv_buggy_getaddrinfo=no ac_cv_file__dev_ptc=no ac_cv_file__dev_ptmx=yes
           make all --jobs 4
-          ./python -m test --exclude ${{ matrix.exclude }} --multiprocess 0 --timeout 3600 --verbose2 --verbose3
+          ./python -m test --ignorefile=Tools/jit/ignore-tests-emulated-linux.txt --multiprocess 0 --timeout 4500 --verbose2 --verbose3
+
+  jit-with-disabled-gil:
+    name: Free-Threaded (Debug)
+    needs: interpreter
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+      - name: Build with JIT enabled and GIL disabled
+        run: |
+          sudo bash -c "$(wget -O - https://apt.llvm.org/llvm.sh)" ./llvm.sh 18
+          export PATH="$(llvm-config-18 --bindir):$PATH"
+          ./configure --enable-experimental-jit --with-pydebug --disable-gil
+          make all --jobs 4
+      - name: Run tests
+        run: |
+          ./python -m test --multiprocess 0 --timeout 4500 --verbose2 --verbose3

.github/workflows/mypy.yml

@@ -8,6 +8,7 @@ on:
   pull_request:
     paths:
       - ".github/workflows/mypy.yml"
+      - "Lib/_pyrepl/**"
       - "Lib/test/libregrtest/**"
       - "Tools/build/generate_sbom.py"
       - "Tools/cases_generator/**"
@@ -33,10 +34,12 @@ concurrency:
 jobs:
   mypy:
     strategy:
+      fail-fast: false
       matrix:
         target: [
+          "Lib/_pyrepl",
           "Lib/test/libregrtest",
-          "Tools/build/",
+          "Tools/build",
           "Tools/cases_generator",
           "Tools/clinic",
           "Tools/jit",

.github/workflows/posix-deps-apt.sh

@@ -15,6 +15,7 @@ apt-get -yq install \
     libgdbm-dev \
     libgdbm-compat-dev \
     liblzma-dev \
+    libmpdec-dev \
     libncurses5-dev \
     libreadline6-dev \
     libsqlite3-dev \

.github/workflows/project-updater.yml

@@ -23,7 +23,7 @@ jobs:
           - { project: 32, label: sprint }
 
     steps:
-      - uses: actions/add-to-project@v0.6.0
+      - uses: actions/add-to-project@v1.0.0
         with:
           project-url: https://github.com/orgs/python/projects/${{ matrix.project }}
           github-token: ${{ secrets.ADD_TO_PROJECT_PAT }}

.github/workflows/reusable-docs.yml

@@ -62,7 +62,8 @@ jobs:
         python Doc/tools/check-warnings.py \
           --annotate-diff '${{ env.branch_base }}' '${{ env.branch_pr }}' \
           --fail-if-regression \
-          --fail-if-improved
+          --fail-if-improved \
+          --fail-if-new-news-nit
 
   # This build doesn't use problem matchers or check annotations
   build_doc_oldest_supported_sphinx:
@@ -74,7 +75,7 @@ jobs:
     - name: 'Set up Python'
       uses: actions/setup-python@v5
       with:
-        python-version: '3.11'  # known to work with Sphinx 4.2
+        python-version: '3.12'  # known to work with Sphinx 6.2.1
         cache: 'pip'
         cache-dependency-path: 'Doc/requirements-oldest-sphinx.txt'
     - name: 'Install build dependencies'

.github/workflows/reusable-macos.yml

@@ -22,6 +22,7 @@ jobs:
       HOMEBREW_NO_INSTALL_CLEANUP: 1
       HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK: 1
       PYTHONSTRICTEXTENSIONBUILD: 1
+      TERM: linux
     strategy:
       fail-fast: false
       matrix:
@@ -49,7 +50,7 @@ jobs:
           --prefix=/opt/python-dev \
           --with-openssl="$(brew --prefix openssl@3.0)"
     - name: Build CPython
-      run: make -j4
+      run: make -j8
     - name: Display build info
       run: make pythoninfo
     - name: Tests