Merge branch 'main' into inlinecomp2

* main: (463 commits)
  pythongh-104057: Fix direct invocation of test_super (python#104064)
  pythongh-87092: Expose assembler to unit tests (python#103988)
  pythongh-97696: asyncio eager tasks factory (python#102853)
  pythongh-84436: Immortalize in _PyStructSequence_InitBuiltinWithFlags() (pythongh-104054)
  pythongh-104057: Fix direct invocation of test_module (pythonGH-104059)
  pythongh-100458: Clarify Enum.__format__() change of mixed-in types in the whatsnew/3.11.rst (pythonGH-100387)
  pythongh-104018: disallow "z" format specifier in %-format of byte strings (pythonGH-104033)
  pythongh-104016: Fixed off by 1 error in f string tokenizer (python#104047)
  pythonGH-103629: Update Unpack's repr in compliance with PEP 692 (python#104048)
  pythongh-102799: replace sys.exc_info by sys.exception in inspect and traceback modules (python#104032)
  Fix typo in "expected" word in few source files (python#104034)
  pythongh-103824: fix use-after-free error in Parser/tokenizer.c (python#103993)
  pythongh-104035: Do not ignore user-defined `__{get,set}state__` in slotted frozen dataclasses (python#104041)
  pythongh-104028: Reduce object creation while calling callback function from gc (pythongh-104030)
  pythongh-104036: Fix direct invocation of test_typing (python#104037)
  pythongh-102213: Optimize the performance of `__getattr__` (pythonGH-103761)
  pythongh-103895: Improve how invalid `Exception.__notes__` are displayed (python#103897)
  Adjust expression from `==` to `!=` in alignment with the meaning of the paragraph. (pythonGH-104021)
  pythongh-88496: Fix IDLE test hang on macOS (python#104025)
  Improve int test coverage (python#104024)
  ...

Author: carljm

Diff for: .devcontainer/Dockerfile

@@ -0,0 +1,24 @@
+FROM docker.io/library/fedora:37
+
+ENV CC=clang
+
+ENV WASI_SDK_VERSION=19
+ENV WASI_SDK_PATH=/opt/wasi-sdk
+
+ENV WASMTIME_HOME=/opt/wasmtime
+ENV WASMTIME_VERSION=7.0.0
+ENV WASMTIME_CPU_ARCH=x86_64
+
+RUN dnf -y --nodocs --setopt=install_weak_deps=False install /usr/bin/{blurb,clang,curl,git,ln,tar,xz} 'dnf-command(builddep)' && \
+    dnf -y --nodocs --setopt=install_weak_deps=False builddep python3 && \
+    dnf -y clean all
+
+RUN mkdir ${WASI_SDK_PATH} && \
+    curl --location https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-${WASI_SDK_VERSION}/wasi-sdk-${WASI_SDK_VERSION}.0-linux.tar.gz | \
+    tar --strip-components 1 --directory ${WASI_SDK_PATH} --extract --gunzip
+
+RUN mkdir --parents ${WASMTIME_HOME} && \
+    curl --location "https://github.com/bytecodealliance/wasmtime/releases/download/v${WASMTIME_VERSION}/wasmtime-v${WASMTIME_VERSION}-${WASMTIME_CPU_ARCH}-linux.tar.xz" | \
+    xz --decompress | \
+    tar --strip-components 1 --directory ${WASMTIME_HOME} -x && \
+    ln -s ${WASMTIME_HOME}/wasmtime /usr/local/bin

Diff for: .devcontainer/devcontainer.json

@@ -0,0 +1,81 @@
+{
+    "build": {
+        "dockerfile": "Dockerfile"
+    },
+    "onCreateCommand": [
+        // Install common tooling.
+        "dnf",
+        "install",
+        "-y",
+        "which",
+        "zsh",
+        "fish"
+    ],
+    "updateContentCommand": {
+        // Using the shell for `nproc` usage.
+        "python": "./configure --config-cache --with-pydebug && make -s -j `nproc`",
+        "docs": [
+            "make",
+            "--directory",
+            "Doc",
+            "venv",
+            "html"
+        ]
+    },
+    "customizations": {
+        "vscode": {
+            "extensions": [
+                // Highlighting for Parser/Python.asdl.
+                "brettcannon.zephyr-asdl",
+                // Highlighting for configure.ac.
+                "maelvalais.autoconf",
+                // C auto-complete.
+                "ms-vscode.cpptools",
+                // To view built docs.
+                "ms-vscode.live-server"
+                // https://github.com/microsoft/vscode-python/issues/18073
+                // "ms-python.python"
+            ],
+            "settings": {
+                "C_Cpp.default.compilerPath": "/usr/bin/clang",
+                "C_Cpp.default.cStandard": "c11",
+                "C_Cpp.default.defines": [
+                    "CONFIG_64",
+                    "Py_BUILD_CORE"
+                ],
+                "C_Cpp.default.includePath": [
+                    "${workspaceFolder}/*",
+                    "${workspaceFolder}/Include/**"
+                ],
+                // https://github.com/microsoft/vscode-cpptools/issues/10732
+                "C_Cpp.errorSquiggles": "disabled",
+                "editor.insertSpaces": true,
+                "editor.rulers": [
+                    80
+                ],
+                "editor.tabSize": 4,
+                "editor.trimAutoWhitespace": true,
+                "files.associations": {
+                    "*.h": "c"
+                },
+                "files.encoding": "utf8",
+                "files.eol": "\n",
+                "files.insertFinalNewline": true,
+                "files.trimTrailingWhitespace": true,
+                "python.analysis.diagnosticSeverityOverrides": {
+                    // Complains about shadowing the stdlib w/ the stdlib.
+                    "reportShadowedImports": "none",
+                    // Doesn't like _frozen_importlib.
+                    "reportMissingImports": "none"
+                },
+                "python.analysis.extraPaths": [
+                    "Lib"
+                ],
+                "python.defaultInterpreterPath": "./python",
+                "[restructuredtext]": {
+                    "editor.tabSize": 3
+                }
+            }
+        }
+    }
+}

Diff for: .gitattributes

@@ -32,6 +32,10 @@ Lib/test/test_importlib/resources/data01/*           noeol
 Lib/test/test_importlib/resources/namespacedata01/*  noeol
 Lib/test/xmltestdata/*                     noeol
 
+# Shell scripts should have LF even on Windows because of Cygwin
+Lib/venv/scripts/common/activate text eol=lf
+Lib/venv/scripts/posix/* text eol=lf
+
 # CRLF files
 [attr]dos text eol=crlf
 

Diff for: .github/CODEOWNERS

@@ -5,13 +5,13 @@
 # https://git-scm.com/docs/gitignore#_pattern_format
 
 # GitHub
-.github/**                    @ezio-melotti
+.github/**                    @ezio-melotti @hugovk
 
 # Build system
 configure*                    @erlend-aasland @corona10
 
 # asyncio
-**/*asyncio*                  @1st1 @asvetlov @gvanrossum @kumaraditya303
+**/*asyncio*                  @1st1 @asvetlov @gvanrossum @kumaraditya303 @willingc
 
 # Core
 **/*context*                  @1st1
@@ -25,6 +25,8 @@ Objects/frameobject.c         @markshannon
 Objects/call.c                @markshannon
 Python/ceval.c                @markshannon
 Python/compile.c              @markshannon @iritkatriel
+Python/assemble.c             @markshannon @iritkatriel
+Python/flowgraph.c            @markshannon @iritkatriel
 Python/ast_opt.c              @isidentical
 Lib/test/test_patma.py        @brandtbucher
 Lib/test/test_peepholer.py    @brandtbucher
@@ -61,11 +63,7 @@ Python/traceback.c            @iritkatriel
 /Tools/build/parse_html5_entities.py   @ezio-melotti
 
 # Import (including importlib).
-# Ignoring importlib.h so as to not get flagged on
-# all pull requests that change the emitted
-# bytecode.
-**/*import*.c                 @brettcannon @encukou @ericsnowcurrently @ncoghlan @warsaw
-**/*import*.py                @brettcannon @encukou @ericsnowcurrently @ncoghlan @warsaw
+**/*import*                   @brettcannon @encukou @ericsnowcurrently @ncoghlan @warsaw
 **/*importlib/resources/*      @jaraco @warsaw @FFY00
 **/importlib/metadata/*       @jaraco @warsaw
 

Diff for: .github/workflows/build.yml

@@ -33,6 +33,7 @@ jobs:
   check_source:
     name: 'Check for source changes'
     runs-on: ubuntu-latest
+    timeout-minutes: 10
     outputs:
       run_tests: ${{ steps.check.outputs.run_tests }}
     steps:
@@ -63,6 +64,7 @@ jobs:
   check_generated_files:
     name: 'Check if generated files are up to date'
     runs-on: ubuntu-latest
+    timeout-minutes: 60
     needs: check_source
     if: needs.check_source.outputs.run_tests == 'true'
     steps:
@@ -118,6 +120,7 @@ jobs:
   build_win32:
     name: 'Windows (x86)'
     runs-on: windows-latest
+    timeout-minutes: 60
     needs: check_source
     if: needs.check_source.outputs.run_tests == 'true'
     env:
@@ -126,7 +129,6 @@ jobs:
     - uses: actions/checkout@v3
     - name: Build CPython
       run: .\PCbuild\build.bat -e -d -p Win32
-      timeout-minutes: 30
     - name: Display build info
       run: .\python.bat -m test.pythoninfo
     - name: Tests
@@ -135,6 +137,7 @@ jobs:
   build_win_amd64:
     name: 'Windows (x64)'
     runs-on: windows-latest
+    timeout-minutes: 60
     needs: check_source
     if: needs.check_source.outputs.run_tests == 'true'
     env:
@@ -145,7 +148,6 @@ jobs:
       run: echo "::add-matcher::.github/problem-matchers/msvc.json"
     - name: Build CPython
       run: .\PCbuild\build.bat -e -d -p x64
-      timeout-minutes: 30
     - name: Display build info
       run: .\python.bat -m test.pythoninfo
     - name: Tests
@@ -154,6 +156,7 @@ jobs:
   build_macos:
     name: 'macOS'
     runs-on: macos-latest
+    timeout-minutes: 60
     needs: check_source
     if: needs.check_source.outputs.run_tests == 'true'
     env:
@@ -184,6 +187,7 @@ jobs:
   build_ubuntu:
     name: 'Ubuntu'
     runs-on: ubuntu-20.04
+    timeout-minutes: 60
     needs: check_source
     if: needs.check_source.outputs.run_tests == 'true'
     env:
@@ -241,6 +245,7 @@ jobs:
   build_ubuntu_ssltests:
     name: 'Ubuntu SSL tests with OpenSSL'
     runs-on: ubuntu-20.04
+    timeout-minutes: 60
     needs: check_source
     if: needs.check_source.outputs.run_tests == 'true'
     strategy:
@@ -290,6 +295,7 @@ jobs:
   build_asan:
     name: 'Address sanitizer'
     runs-on: ubuntu-20.04
+    timeout-minutes: 60
     needs: check_source
     if: needs.check_source.outputs.run_tests == 'true'
     env:
@@ -302,6 +308,10 @@ jobs:
       run: echo "::add-matcher::.github/problem-matchers/gcc.json"
     - name: Install Dependencies
       run: sudo ./.github/workflows/posix-deps-apt.sh
+    - name: Set up GCC-10 for ASAN
+      uses: egor-tensin/setup-gcc@v1
+      with:
+        version: 10
     - name: Configure OpenSSL env vars
       run: |
         echo "MULTISSL_DIR=${GITHUB_WORKSPACE}/multissl" >> $GITHUB_ENV

Diff for: .github/workflows/build_msi.yml

@@ -26,6 +26,7 @@ jobs:
   build:
     name: Windows Installer
     runs-on: windows-latest
+    timeout-minutes: 60
     strategy:
       matrix:
         type: [x86, x64, arm64]

Diff for: .github/workflows/doc.yml

@@ -36,6 +36,7 @@ jobs:
   build_doc:
     name: 'Docs'
     runs-on: ubuntu-latest
+    timeout-minutes: 60
     steps:
     - uses: actions/checkout@v3
     - name: Register Sphinx problem matcher
@@ -53,10 +54,56 @@ jobs:
     - name: 'Build HTML documentation'
       run: make -C Doc/ SPHINXOPTS="-q" SPHINXERRORHANDLING="-W --keep-going" html
 
+    # Add pull request annotations for Sphinx nitpicks (missing references)
+    - name: 'Get list of changed files'
+      if: github.event_name == 'pull_request'
+      id: changed_files
+      uses: Ana06/get-changed-files@v2.2.0
+      with:
+        filter: "Doc/**"
+    - name: 'Build changed files in nit-picky mode'
+      if: github.event_name == 'pull_request'
+      continue-on-error: true
+      run: |
+        # Mark files the pull request modified
+        touch ${{ steps.changed_files.outputs.added_modified }}
+        # Build docs with the '-n' (nit-picky) option; convert warnings to annotations
+        make -C Doc/ PYTHON=../python SPHINXOPTS="-q -n --keep-going" html 2>&1 |
+            python Doc/tools/warnings-to-gh-actions.py
+
+    # Ensure some files always pass Sphinx nit-picky mode (no missing references)
+    - name: 'Build known-good files in nit-picky mode'
+      run: |
+        # Mark files that must pass nit-picky
+        python Doc/tools/touch-clean-files.py
+        # Build docs with the '-n' (nit-picky) option, convert warnings to errors (-W)
+        make -C Doc/ PYTHON=../python SPHINXOPTS="-q -n -W --keep-going" html 2>&1
+
+  # This build doesn't use problem matchers or check annotations
+  # It also does not run 'make check', as sphinx-lint is not installed into the
+  # environment.
+  build_doc_oldest_supported_sphinx:
+    name: 'Docs (Oldest Sphinx)'
+    runs-on: ubuntu-latest
+    timeout-minutes: 60
+    steps:
+    - uses: actions/checkout@v3
+    - name: 'Set up Python'
+      uses: actions/setup-python@v4
+      with:
+        python-version: '3.11'  # known to work with Sphinx 3.2
+        cache: 'pip'
+        cache-dependency-path: 'Doc/requirements-oldest-sphinx.txt'
+    - name: 'Install build dependencies'
+      run: make -C Doc/ venv REQUIREMENTS="requirements-oldest-sphinx.txt"
+    - name: 'Build HTML documentation'
+      run: make -C Doc/ SPHINXOPTS="-q" SPHINXERRORHANDLING="-W --keep-going" html
+
   # Run "doctest" on HEAD as new syntax doesn't exist in the latest stable release
   doctest:
     name: 'Doctest'
     runs-on: ubuntu-latest
+    timeout-minutes: 60
     steps:
     - uses: actions/checkout@v3
     - name: Register Sphinx problem matcher

Diff for: .github/workflows/documentation-links.yml

@@ -0,0 +1,27 @@
+name: Read the Docs PR preview
+# Automatically edits a pull request's descriptions with a link
+# to the documentation's preview on Read the Docs.
+
+on:
+  pull_request_target:
+    types:
+      - opened
+    paths:
+    - 'Doc/**'
+    - '.github/workflows/doc.yml'
+
+permissions:
+  pull-requests: write
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+jobs:
+  documentation-links:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: readthedocs/actions/preview@v1
+        with:
+          project-slug: "cpython-previews"
+          single-version: "true"

Diff for: .github/workflows/new-bugs-announce-notifier.yml

@@ -11,6 +11,7 @@ permissions:
 jobs:
   notify-new-bugs-announce:
     runs-on: ubuntu-latest
+    timeout-minutes: 10
     steps:
       - uses: actions/setup-node@v3
         with:

Diff for: .github/workflows/project-updater.yml

@@ -13,16 +13,15 @@ jobs:
   add-to-project:
     name: Add issues to projects
     runs-on: ubuntu-latest
+    timeout-minutes: 10
     strategy:
       matrix:
         include:
           # if an issue has any of these labels, it will be added
           # to the corresponding project
           - { project:  2, label: "release-blocker, deferred-blocker" }
-          - { project:  3, label: expert-subinterpreters }
-          - { project: 29, label: expert-asyncio }
           - { project: 32, label: sprint }
-    
+
     steps:
       - uses: actions/add-to-project@v0.1.0
         with:

Diff for: .github/workflows/require-pr-label.yml

@@ -0,0 +1,18 @@
+name: Check labels
+
+on:
+  pull_request:
+    types: [opened, reopened, labeled, unlabeled, synchronize]
+
+jobs:
+  label:
+    name: DO-NOT-MERGE / unresolved review
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+
+    steps:
+      - uses: mheap/github-action-required-labels@v4
+        with:
+          mode: exactly
+          count: 0
+          labels: "DO-NOT-MERGE, awaiting changes, awaiting change review"