Import upstream CPython branch '3.14'

Summary:
Imported Python `3.14.0rc3+` from upstream rev [`e7ee62b5c872dace02abbb45107033030cb0dbf0`](https://www.github.com/python/cpython/commit/e7ee62b5c872dace02abbb45107033030cb0dbf0) (committed 2025-10-03 20:46:29+00:00).

# Commit Info

Base: (`3.14.0rc3+`) - [`22c63945c194ead0dc587572ab7e8395a2cb3a03`](https://www.github.com/python/cpython/commit/22c63945c194ead0dc587572ab7e8395a2cb3a03) (commit date: 2025-10-02 21:11:58+00:00)
Imported: (`3.14.0rc3+`) - [`e7ee62b5c872dace02abbb45107033030cb0dbf0`](https://www.github.com/python/cpython/commit/e7ee62b5c872dace02abbb45107033030cb0dbf0) (commit date: 2025-10-03 20:46:29+00:00)

Reviewed By: itamaro

Differential Revision: D83906574

fbshipit-source-id: 16865f8d92609c28441acc313f39cd29b9f8016e

Author: generatedunixname1734921407115435

.github/actionlint.yaml

@@ -1,6 +1,7 @@
 self-hosted-runner:
   # Pending https://github.com/rhysd/actionlint/issues/533
-  labels: ["windows-11-arm"]
+  # and https://github.com/rhysd/actionlint/issues/571
+  labels: ["windows-11-arm", "macos-15-intel"]
 
 config-variables: null
 

.github/workflows/build.yml

@@ -249,13 +249,13 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        # Cirrus and macos-14 are M1, macos-13 is default GHA Intel.
+        # Cirrus and macos-14 are M1, macos-15-intel is default GHA Intel.
         # macOS 13 only runs tests against the GIL-enabled CPython.
         # Cirrus used for upstream, macos-14 for forks.
         os:
         - ghcr.io/cirruslabs/macos-runner:sonoma
         - macos-14
-        - macos-13
+        - macos-15-intel
         is-fork:  # only used for the exclusion trick
         - ${{ github.repository_owner != 'python' }}
         free-threading:
@@ -266,7 +266,7 @@ jobs:
           is-fork: true
         - os: macos-14
           is-fork: false
-        - os: macos-13
+        - os: macos-15-intel
           free-threading: true
     uses: ./.github/workflows/reusable-macos.yml
     with:

.github/workflows/jit.yml

@@ -77,7 +77,7 @@ jobs:
             runner: windows-11-arm
           - target: x86_64-apple-darwin/clang
             architecture: x86_64
-            runner: macos-13
+            runner: macos-15-intel
           - target: aarch64-apple-darwin/clang
             architecture: aarch64
             runner: macos-14
@@ -102,15 +102,10 @@ jobs:
           ./PCbuild/build.bat --experimental-jit ${{ matrix.debug && '-d' || '' }} -p ${{ matrix.architecture }}
           ./PCbuild/rt.bat ${{ matrix.debug && '-d' || '' }} -p ${{ matrix.architecture }} -q --multiprocess 0 --timeout 4500 --verbose2 --verbose3
 
-        # The `find` line is required as a result of https://github.com/actions/runner-images/issues/9966.
-        # This is a bug in the macOS runner image where the pre-installed Python is installed in the same
-        # directory as the Homebrew Python, which causes the build to fail for macos-13. This line removes
-        # the symlink to the pre-installed Python so that the Homebrew Python is used instead.
       - name: macOS
         if: runner.os == 'macOS'
         run: |
           brew update
-          find /usr/local/bin -lname '*/Library/Frameworks/Python.framework/*' -delete
           brew install llvm@${{ matrix.llvm }}
           export SDKROOT="$(xcrun --show-sdk-path)"
           # Set MACOSX_DEPLOYMENT_TARGET and -Werror=unguarded-availability to

.github/workflows/reusable-macos.yml

@@ -60,15 +60,15 @@ jobs:
           --prefix=/opt/python-dev \
           --with-openssl="$(brew --prefix openssl@3.0)"
     - name: Build CPython
-      if : ${{ inputs.free-threading || inputs.os != 'macos-13' }}
+      if : ${{ inputs.free-threading || inputs.os != 'macos-15-intel' }}
       run: gmake -j8
     - name: Build CPython for compiler warning check
-      if : ${{ !inputs.free-threading && inputs.os == 'macos-13' }}
+      if : ${{ !inputs.free-threading && inputs.os == 'macos-15-intel' }}
       run: set -o pipefail; gmake -j8 --output-sync 2>&1 | tee compiler_output_macos.txt
     - name: Display build info
       run: make pythoninfo
     - name: Check compiler warnings
-      if : ${{ !inputs.free-threading && inputs.os == 'macos-13' }}
+      if : ${{ !inputs.free-threading && inputs.os == 'macos-15-intel' }}
       run: >-
         python3 Tools/build/check_warnings.py
         --compiler-output-file-path=compiler_output_macos.txt

.github/workflows/tail-call.yml

@@ -58,7 +58,7 @@ jobs:
 #            runner: windows-2022
           - target: x86_64-apple-darwin/clang
             architecture: x86_64
-            runner: macos-13
+            runner: macos-15-intel
           - target: aarch64-apple-darwin/clang
             architecture: aarch64
             runner: macos-14
@@ -101,17 +101,10 @@ jobs:
           set LLVMInstallDir=C:\Program Files\LLVM
           ./PCbuild/build.bat --tail-call-interp -p ${{ matrix.architecture }}
 
-        # The `find` line is required as a result of https://github.com/actions/runner-images/issues/9966.
-        # This is a bug in the macOS runner image where the pre-installed Python is installed in the same
-        # directory as the Homebrew Python, which causes the build to fail for macos-13. This line removes
-        # the symlink to the pre-installed Python so that the Homebrew Python is used instead.
-        # Note: when a new LLVM is released, the homebrew installation directory changes, so the builds will fail.
-        # We either need to upgrade LLVM or change the directory being pointed to.
       - name: Native macOS (release)
         if: runner.os == 'macOS'
         run: |
           brew update
-          find /usr/local/bin -lname '*/Library/Frameworks/Python.framework/*' -delete
           brew install llvm@${{ matrix.llvm }}
           export SDKROOT="$(xcrun --show-sdk-path)"
           export PATH="/usr/local/opt/llvm@${{ matrix.llvm }}/bin:$PATH"

Doc/c-api/init.rst

@@ -2002,6 +2002,10 @@ pointer and a void pointer argument.
       called from the main interpreter. Each subinterpreter now has its own
       list of scheduled calls.
 
+   .. versionchanged:: 3.12
+      This function now always schedules *func* to be run in the main
+      interpreter.
+
 .. _profiling:
 
 Profiling and Tracing