Update to v3.12.12

.github/workflows/mingw.yml

@@ -0,0 +1,319 @@
+name: Build
+on: [push, pull_request, workflow_dispatch]
+
+jobs:
+  build:
+    runs-on: ${{ matrix.runner }}
+    strategy:
+      fail-fast: false
+      matrix:
+        msystem: ['MINGW64','MINGW32','UCRT64','CLANG64','CLANGARM64']
+        include:
+          - msystem: MINGW64
+            prefix: mingw-w64-x86_64
+            runner: windows-2022
+          - msystem: MINGW32
+            prefix: mingw-w64-i686
+            runner: windows-2022
+          - msystem: UCRT64
+            prefix: mingw-w64-ucrt-x86_64
+            runner: windows-2022
+          - msystem: CLANG64
+            prefix: mingw-w64-clang-x86_64
+            runner: windows-2022
+          - msystem: CLANGARM64
+            prefix: mingw-w64-clang-aarch64
+            runner: windows-11-arm
+    steps:
+      - name: Setup git
+        run: |
+          git config --global core.autocrlf false
+          git config --global core.eol lf
+      - uses: actions/checkout@v4
+      - uses: msys2/setup-msys2@v2
+        with:
+          msystem: ${{ matrix.msystem }}
+          release: ${{ matrix.msystem == 'CLANGARM64' }}
+          update: true
+          install: >-
+            make
+            binutils
+            autoconf
+            autoconf-archive
+            automake-wrapper
+            tar
+            gzip
+            ${{ matrix.prefix }}-toolchain
+            ${{ matrix.prefix }}-expat
+            ${{ matrix.prefix }}-bzip2
+            ${{ matrix.prefix }}-libffi
+            ${{ matrix.prefix }}-mpdecimal
+            ${{ matrix.prefix }}-ncurses
+            ${{ matrix.prefix }}-openssl
+            ${{ matrix.prefix }}-sqlite3
+            ${{ matrix.prefix }}-tcl
+            ${{ matrix.prefix }}-tk
+            ${{ matrix.prefix }}-zlib
+            ${{ matrix.prefix }}-xz
+            ${{ matrix.prefix }}-tzdata
+
+      - name: Build Python
+        shell: msys2 {0}
+        run: |
+          set -ex
+
+          if [[ "${{ matrix.msystem }}" == CLANG* ]]; then
+            export CC=clang
+            export CXX=clang++
+          fi
+          autoreconf -vfi
+
+          rm -Rf _build && mkdir _build && cd _build
+
+          ../configure \
+            --prefix=${MINGW_PREFIX} \
+            --host=${MINGW_CHOST} \
+            --build=${MINGW_CHOST} \
+            --enable-shared \
+            --with-system-expat \
+            --with-system-libmpdec \
+            --without-ensurepip \
+            --enable-loadable-sqlite-extensions \
+            --with-tzpath=${MINGW_PREFIX}/share/zoneinfo \
+            --enable-optimizations
+
+          make -j8
+
+      - name: Run Smoke Test (build)
+        shell: msys2 {0}
+        run: |
+          SMOKETESTS="$(pwd)/mingw_smoketests.py"
+          cd _build
+          ./python.exe "$SMOKETESTS"
+          MSYSTEM= ./python.exe "$SMOKETESTS"
+
+      - name: Run tests
+        shell: msys2 {0}
+        run: |
+          IGNOREFILE="$(pwd)/mingw_ignorefile.txt"
+          IGNOREFILE_EXTRA="$IGNOREFILE"
+          if [[ "${{ matrix.msystem }}" == "MINGW32" ]] || [[ "${{ matrix.msystem }}" == "MINGW64" ]]; then
+            IGNOREFILE_EXTRA="$(pwd)/mingw_ignorefile_msvcrt.txt"
+          fi
+          cd _build
+          MSYSTEM= ./python.exe -m test -j8 --ignorefile "$IGNOREFILE" --ignorefile "$IGNOREFILE_EXTRA" -W
+
+      - name: Run broken tests
+        continue-on-error: true
+        shell: msys2 {0}
+        run: |
+          IGNOREFILE="$(pwd)/mingw_ignorefile.txt"
+          IGNOREFILE_EXTRA="$IGNOREFILE"
+          if [[ "${{ matrix.msystem }}" == "MINGW32" ]] || [[ "${{ matrix.msystem }}" == "MINGW64" ]]; then
+            IGNOREFILE_EXTRA="$(pwd)/mingw_ignorefile_msvcrt.txt"
+          fi
+          cd _build
+          MSYSTEM= ./python.exe -m test -j8 --matchfile "$IGNOREFILE" --matchfile "$IGNOREFILE_EXTRA" -W
+
+      - name: Install
+        shell: msys2 {0}
+        run: |
+          set -ex
+          cd _build
+
+          pkgdir=python_pkgdir
+
+          make -j1 install DESTDIR="${pkgdir}"
+
+          # Fix shebangs
+          _pybasever=$(./python.exe -c "import sys; print(f'{sys.version_info[0]}.{sys.version_info[1]}');")
+          for fscripts in 2to3 2to3-${_pybasever} idle3 idle${_pybasever} pydoc3 pydoc${_pybasever}; do
+              sed -i "s|$(cygpath -w ${MINGW_PREFIX} | sed 's|\\|\\\\|g')/bin/python${_pybasever}.exe|/usr/bin/env python${_pybasever}.exe|g" "${pkgdir}${MINGW_PREFIX}"/bin/${fscripts}
+          done
+          sed -i "s|#!${MINGW_PREFIX}/bin/python${_pybasever}.exe|#!/usr/bin/env python${_pybasever}.exe|" "${pkgdir}${MINGW_PREFIX}"/lib/python${_pybasever}/config-${_pybasever}/python-config.py
+
+          # Create version-less aliases
+          cp "${pkgdir}${MINGW_PREFIX}"/bin/python3.exe "${pkgdir}${MINGW_PREFIX}"/bin/python.exe
+          cp "${pkgdir}${MINGW_PREFIX}"/bin/python3w.exe "${pkgdir}${MINGW_PREFIX}"/bin/pythonw.exe
+          cp "${pkgdir}${MINGW_PREFIX}"/bin/python3-config "${pkgdir}${MINGW_PREFIX}"/bin/python-config
+          cp "${pkgdir}${MINGW_PREFIX}"/bin/idle3 "${pkgdir}${MINGW_PREFIX}"/bin/idle
+          cp "${pkgdir}${MINGW_PREFIX}"/bin/pydoc3 "${pkgdir}${MINGW_PREFIX}"/bin/pydoc
+
+          # copy to /
+          cp -rf "${pkgdir}"/* /
+
+      - name: Run Smoke Test (installed)
+        shell: msys2 {0}
+        run: |
+          SMOKETESTS="$(pwd)/mingw_smoketests.py"
+          ${MINGW_PREFIX}/bin/python.exe "$SMOKETESTS"
+          MSYSTEM= ${MINGW_PREFIX}/bin/python.exe "$SMOKETESTS"
+
+      - name: Compress
+        if: always()
+        shell: msys2 {0}
+        run: |
+          cd _build
+          tar -zcf python.tar.gz python_pkgdir/
+
+      - name: Upload
+        uses: actions/upload-artifact@v4
+        if: always()
+        with:
+          name: build-${{ matrix.msystem }}
+          path: _build/python.tar.gz
+
+  cross-gcc-x86_64:
+    runs-on: ubuntu-latest
+    container:
+      image: ubuntu:25.04
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install deps
+        run: |
+          apt-get update
+          DEBIAN_FRONTEND=noninteractive apt-get install -y \
+            gcc-mingw-w64-x86-64 \
+            g++-mingw-w64-x86-64 \
+            autoconf-archive \
+            autoconf \
+            automake \
+            zip \
+            make \
+            pkg-config
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.12'
+
+      - name: Check Python Version
+        run: |
+          which python
+          python --version
+
+      - name: Build
+        run: |
+          autoreconf -vfi
+
+          mkdir _build && cd _build
+
+          export PKG_CONFIG_LIBDIR=/dev/null
+          unset PKG_CONFIG_PATH
+
+          ../configure \
+            --host=x86_64-w64-mingw32 \
+            --build=x86_64-pc-linux-gnu \
+            --enable-shared \
+            --without-ensurepip \
+            --enable-loadable-sqlite-extensions \
+            --with-build-python=yes
+
+          make -j8
+
+          make install DESTDIR="$(pwd)/install"
+
+      - name: 'Zip files'
+        run: |
+          zip -r install.zip _build/install
+
+      - name: Upload
+        uses: actions/upload-artifact@v4
+        with:
+          name: build-cross-gcc-x86_64
+          path: install.zip
+
+  cross-gcc-x86_64-test:
+    needs: [cross-gcc-x86_64]
+    runs-on: windows-latest
+    steps:
+      - uses: actions/download-artifact@v4
+        with:
+          name: build-cross-gcc-x86_64
+
+      - name: 'Run tests'
+        run: |
+          7z x install.zip
+          ./_build/install/usr/local/bin/python3.exe -c "import sysconfig, pprint; pprint.pprint(sysconfig.get_config_vars())"
+
+
+  cross-llvm-mingw:
+    runs-on: ubuntu-latest
+    container:
+      image: mstorsjo/llvm-mingw:latest
+    strategy:
+      fail-fast: false
+      matrix:
+        arch: ['x86_64', 'i686', 'aarch64', 'armv7']
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install deps
+        run: |
+          export DEBIAN_FRONTEND=noninteractive
+          apt-get update -qq
+          apt-get install -qqy software-properties-common
+          add-apt-repository --yes ppa:deadsnakes/ppa
+          apt-get update -qq
+          apt-get install -qqy autoconf-archive python3.12-dev python3.12
+
+      - name: Build
+        run: |
+          autoreconf -vfi
+
+          mkdir _build && cd _build
+
+          export PKG_CONFIG_LIBDIR=/dev/null
+          unset PKG_CONFIG_PATH
+
+          export CC=${{ matrix.arch }}-w64-mingw32-clang
+          export CXX=${CC}++
+          ../configure \
+            --host=${{ matrix.arch }}-w64-mingw32 \
+            --build=x86_64-pc-linux-gnu \
+            --enable-shared \
+            --without-ensurepip \
+            --without-c-locale-coercion \
+            --enable-loadable-sqlite-extensions \
+            --with-build-python=yes
+
+          make -j8
+
+          make install DESTDIR="$(pwd)/install"
+
+      - name: 'Zip files'
+        run: |
+          zip -r install.zip _build/install
+
+      - name: Upload
+        uses: actions/upload-artifact@v4
+        with:
+          name: build-cross-llvm-mingw-${{ matrix.arch }}
+          path: install.zip
+
+  cross-llvm-mingw-test:
+    needs: [cross-llvm-mingw]
+    runs-on: ${{ matrix.runner }}
+    strategy:
+      fail-fast: false
+      matrix:
+        arch: ['x86_64', 'i686', 'aarch64']
+        include:
+          - arch: x86_64
+            runner: windows-latest
+          - arch: i686
+            runner: windows-latest
+          - arch: aarch64
+            runner: windows-11-arm
+    steps:
+      - uses: actions/download-artifact@v4
+        with:
+          name: build-cross-llvm-mingw-${{ matrix.arch }}
+
+      - name: 'Run tests'
+        run: |
+          if (Test-Path ./_build) {rm -r -fo ./_build}
+          Add-Type -AssemblyName System.IO.Compression.FileSystem ;
+          [System.IO.Compression.ZipFile]::ExtractToDirectory("$PWD\install.zip", "$PWD")
+          ./_build/install/usr/local/bin/python3.exe -c "import sysconfig, pprint; pprint.pprint(sysconfig.get_config_vars())"
+
+

Include/bytesobject.h

@@ -35,9 +35,9 @@ PyAPI_FUNC(PyObject *) PyBytes_FromStringAndSize(const char *, Py_ssize_t);
 PyAPI_FUNC(PyObject *) PyBytes_FromString(const char *);
 PyAPI_FUNC(PyObject *) PyBytes_FromObject(PyObject *);
 PyAPI_FUNC(PyObject *) PyBytes_FromFormatV(const char*, va_list)
-                                Py_GCC_ATTRIBUTE((format(printf, 1, 0)));
+                                Py_PRINTF(1, 0);
 PyAPI_FUNC(PyObject *) PyBytes_FromFormat(const char*, ...)
-                                Py_GCC_ATTRIBUTE((format(printf, 1, 2)));
+                                Py_PRINTF(1, 2);
 PyAPI_FUNC(Py_ssize_t) PyBytes_Size(PyObject *);
 PyAPI_FUNC(char *) PyBytes_AsString(PyObject *);
 PyAPI_FUNC(PyObject *) PyBytes_Repr(PyObject *, int);

Include/fileobject.h

@@ -30,7 +30,7 @@ Py_DEPRECATED(3.12) PyAPI_DATA(int) Py_UTF8Mode;
 #endif
 
 /* A routine to check if a file descriptor can be select()-ed. */
-#ifdef _MSC_VER
+#ifdef MS_WINDOWS
     /* On Windows, any socket fd can be select()-ed, no matter how high */
     #define _PyIsSelectable_fd(FD) (1)
 #else

Include/internal/pycore_condvar.h

@@ -5,6 +5,12 @@
 #  error "this header requires Py_BUILD_CORE define"
 #endif
 
+#ifdef __MINGW32__
+# if !defined(HAVE_PTHREAD_H) || defined(NT_THREADS)
+#  undef _POSIX_THREADS
+# endif
+#endif
+
 #ifndef _POSIX_THREADS
 /* This means pthreads are not implemented in libc headers, hence the macro
    not present in unistd.h. But they still can be implemented as an external
@@ -41,6 +47,10 @@
 #  define WIN32_LEAN_AND_MEAN
 #endif
 #include <windows.h>              // CRITICAL_SECTION
+/* winpthreads are involved via windows header, so need undef _POSIX_THREADS after header include */
+#if defined(_POSIX_THREADS)
+#undef _POSIX_THREADS
+#endif
 
 /* options */
 /* non-emulated condition variables are provided for those that want