Merge branch 'main' into optimized-idle-semaphore-in-thread-pool-executor

Author: hauntsaninja

.github/workflows/build.yml

@@ -154,15 +154,25 @@ jobs:
     needs: check_source
     if: needs.check_source.outputs.run_tests == 'true'
     env:
+      HOMEBREW_NO_ANALYTICS: 1
+      HOMEBREW_NO_AUTO_UPDATE: 1
+      HOMEBREW_NO_INSTALL_CLEANUP: 1
       PYTHONSTRICTEXTENSIONBUILD: 1
     steps:
     - uses: actions/checkout@v3
-    - name: Prepare homebrew environment variables
+    - name: Install Homebrew dependencies
+      run: brew install pkg-config [email protected] xz gdbm tcl-tk
+    - name: Prepare Homebrew environment variables
       run: |
-        echo "LDFLAGS=-L$(brew --prefix tcl-tk)/lib" >> $GITHUB_ENV
+        echo "CFLAGS=-I$(brew --prefix gdbm)/include -I$(brew --prefix xz)/include" >> $GITHUB_ENV
+        echo "LDFLAGS=-L$(brew --prefix gdbm)/lib -I$(brew --prefix xz)/lib" >> $GITHUB_ENV
         echo "PKG_CONFIG_PATH=$(brew --prefix [email protected])/lib/pkgconfig:$(brew --prefix tcl-tk)/lib/pkgconfig" >> $GITHUB_ENV
     - name: Configure CPython
-      run: ./configure --with-pydebug --prefix=/opt/python-dev
+      run: |
+        ./configure \
+          --with-pydebug \
+          --prefix=/opt/python-dev \
+          --with-openssl="$(brew --prefix [email protected])"
     - name: Build CPython
       run: make -j4
     - name: Display build info

Doc/library/importlib.resources.abc.rst

@@ -89,9 +89,12 @@
 
 .. class:: Traversable
 
-    An object with a subset of pathlib.Path methods suitable for
+    An object with a subset of :class:`pathlib.Path` methods suitable for
     traversing directories and opening files.
 
+    For a representation of the object on the file-system, use
+    :meth:`importlib.resources.as_file`.
+
     .. versionadded:: 3.9
 
     .. deprecated-removed:: 3.12 3.14

Doc/library/zipfile.rst

@@ -55,8 +55,9 @@ The module defines the following items:
 .. class:: Path
    :noindex:
 
-   A pathlib-compatible wrapper for zip files. See section
-   :ref:`path-objects` for details.
+   Class that implements a subset of the interface provided by
+   :class:`pathlib.Path`, including the full
+   :class:`importlib.resources.abc.Traversable` interface.
 
    .. versionadded:: 3.8
 

Include/cpython/code.h

@@ -19,21 +19,35 @@ extern "C" {
 typedef union {
     uint16_t cache;
     struct {
-        uint8_t opcode;
-        uint8_t oparg;
-    };
+        uint8_t code;
+        uint8_t arg;
+    } op;
 } _Py_CODEUNIT;
 
-#define _Py_OPCODE(word) ((word).opcode)
-#define _Py_OPARG(word) ((word).oparg)
+
+/* These macros only remain defined for compatibility. */
+#define _Py_OPCODE(word) ((word).op.code)
+#define _Py_OPARG(word) ((word).op.arg)
+
+static inline _Py_CODEUNIT
+_py_make_codeunit(uint8_t opcode, uint8_t oparg)
+{
+    // No designated initialisers because of C++ compat
+    _Py_CODEUNIT word;
+    word.op.code = opcode;
+    word.op.arg = oparg;
+    return word;
+}
 
 static inline void
 _py_set_opcode(_Py_CODEUNIT *word, uint8_t opcode)
 {
-    word->opcode = opcode;
+    word->op.code = opcode;
 }
 
-#define _Py_SET_OPCODE(word, opcode) _py_set_opocde(&(word), opcode)
+#define _Py_MAKE_CODEUNIT(opcode, oparg) _py_make_codeunit((opcode), (oparg))
+#define _Py_SET_OPCODE(word, opcode) _py_set_opcode(&(word), (opcode))
+
 
 typedef struct {
     PyObject *_co_code;

Lib/test/test_io.py

@@ -1042,6 +1042,95 @@ def close(self):
         support.gc_collect()
         self.assertIsNone(wr(), wr)
 
+@support.cpython_only
+class TestIOCTypes(unittest.TestCase):
+    def setUp(self):
+        _io = import_helper.import_module("_io")
+        self.types = [
+            _io.BufferedRWPair,
+            _io.BufferedRandom,
+            _io.BufferedReader,
+            _io.BufferedWriter,
+            _io.BytesIO,
+            _io.FileIO,
+            _io.IncrementalNewlineDecoder,
+            _io.StringIO,
+            _io.TextIOWrapper,
+            _io._BufferedIOBase,
+            _io._BytesIOBuffer,
+            _io._IOBase,
+            _io._RawIOBase,
+            _io._TextIOBase,
+        ]
+        if sys.platform == "win32":
+            self.types.append(_io._WindowsConsoleIO)
+        self._io = _io
+
+    def test_immutable_types(self):
+        for tp in self.types:
+            with self.subTest(tp=tp):
+                with self.assertRaisesRegex(TypeError, "immutable"):
+                    tp.foo = "bar"
+
+    def test_class_hierarchy(self):
+        def check_subs(types, base):
+            for tp in types:
+                with self.subTest(tp=tp, base=base):
+                    self.assertTrue(issubclass(tp, base))
+
+        def recursive_check(d):
+            for k, v in d.items():
+                if isinstance(v, dict):
+                    recursive_check(v)
+                elif isinstance(v, set):
+                    check_subs(v, k)
+                else:
+                    self.fail("corrupt test dataset")
+
+        _io = self._io
+        hierarchy = {
+            _io._IOBase: {
+                _io._BufferedIOBase: {
+                    _io.BufferedRWPair,
+                    _io.BufferedRandom,
+                    _io.BufferedReader,
+                    _io.BufferedWriter,
+                    _io.BytesIO,
+                },
+                _io._RawIOBase: {
+                    _io.FileIO,
+                },
+                _io._TextIOBase: {
+                    _io.StringIO,
+                    _io.TextIOWrapper,
+                },
+            },
+        }
+        if sys.platform == "win32":
+            hierarchy[_io._IOBase][_io._RawIOBase].add(_io._WindowsConsoleIO)
+
+        recursive_check(hierarchy)
+
+    def test_subclassing(self):
+        _io = self._io
+        dataset = {k: True for k in self.types}
+        dataset[_io._BytesIOBuffer] = False
+
+        for tp, is_basetype in dataset.items():
+            with self.subTest(tp=tp, is_basetype=is_basetype):
+                name = f"{tp.__name__}_subclass"
+                bases = (tp,)
+                if is_basetype:
+                    _ = type(name, bases, {})
+                else:
+                    msg = "not an acceptable base type"
+                    with self.assertRaisesRegex(TypeError, msg):
+                        _ = type(name, bases, {})
+
+    def test_disallow_instantiation(self):
+        _io = self._io
+        support.check_disallow_instantiation(self, _io._BytesIOBuffer)
+
 class PyIOTest(IOTest):
     pass
 
@@ -4671,7 +4760,7 @@ def load_tests(loader, tests, pattern):
              CIncrementalNewlineDecoderTest, PyIncrementalNewlineDecoderTest,
              CTextIOWrapperTest, PyTextIOWrapperTest,
              CMiscIOTest, PyMiscIOTest,
-             CSignalsTest, PySignalsTest,
+             CSignalsTest, PySignalsTest, TestIOCTypes,
              )
 
     # Put the namespaces of the IO module we are testing and some useful mock

Lib/test/test_zipfile/test_core.py

@@ -3010,5 +3010,67 @@ def test_cli_with_metadata_encoding_extract(self):
             self.assertIn(name, listing)
 
 
+class StripExtraTests(unittest.TestCase):
+    # Note: all of the "z" characters are technically invalid, but up
+    # to 3 bytes at the end of the extra will be passed through as they
+    # are too short to encode a valid extra.
+
+    ZIP64_EXTRA = 1
+
+    def test_no_data(self):
+        s = struct.Struct("<HH")
+        a = s.pack(self.ZIP64_EXTRA, 0)
+        b = s.pack(2, 0)
+        c = s.pack(3, 0)
+
+        self.assertEqual(b'', zipfile._strip_extra(a, (self.ZIP64_EXTRA,)))
+        self.assertEqual(b, zipfile._strip_extra(b, (self.ZIP64_EXTRA,)))
+        self.assertEqual(
+            b+b"z", zipfile._strip_extra(b+b"z", (self.ZIP64_EXTRA,)))
+
+        self.assertEqual(b+c, zipfile._strip_extra(a+b+c, (self.ZIP64_EXTRA,)))
+        self.assertEqual(b+c, zipfile._strip_extra(b+a+c, (self.ZIP64_EXTRA,)))
+        self.assertEqual(b+c, zipfile._strip_extra(b+c+a, (self.ZIP64_EXTRA,)))
+
+    def test_with_data(self):
+        s = struct.Struct("<HH")
+        a = s.pack(self.ZIP64_EXTRA, 1) + b"a"
+        b = s.pack(2, 2) + b"bb"
+        c = s.pack(3, 3) + b"ccc"
+
+        self.assertEqual(b"", zipfile._strip_extra(a, (self.ZIP64_EXTRA,)))
+        self.assertEqual(b, zipfile._strip_extra(b, (self.ZIP64_EXTRA,)))
+        self.assertEqual(
+            b+b"z", zipfile._strip_extra(b+b"z", (self.ZIP64_EXTRA,)))
+
+        self.assertEqual(b+c, zipfile._strip_extra(a+b+c, (self.ZIP64_EXTRA,)))
+        self.assertEqual(b+c, zipfile._strip_extra(b+a+c, (self.ZIP64_EXTRA,)))
+        self.assertEqual(b+c, zipfile._strip_extra(b+c+a, (self.ZIP64_EXTRA,)))
+
+    def test_multiples(self):
+        s = struct.Struct("<HH")
+        a = s.pack(self.ZIP64_EXTRA, 1) + b"a"
+        b = s.pack(2, 2) + b"bb"
+
+        self.assertEqual(b"", zipfile._strip_extra(a+a, (self.ZIP64_EXTRA,)))
+        self.assertEqual(b"", zipfile._strip_extra(a+a+a, (self.ZIP64_EXTRA,)))
+        self.assertEqual(
+            b"z", zipfile._strip_extra(a+a+b"z", (self.ZIP64_EXTRA,)))
+        self.assertEqual(
+            b+b"z", zipfile._strip_extra(a+a+b+b"z", (self.ZIP64_EXTRA,)))
+
+        self.assertEqual(b, zipfile._strip_extra(a+a+b, (self.ZIP64_EXTRA,)))
+        self.assertEqual(b, zipfile._strip_extra(a+b+a, (self.ZIP64_EXTRA,)))
+        self.assertEqual(b, zipfile._strip_extra(b+a+a, (self.ZIP64_EXTRA,)))
+
+    def test_too_short(self):
+        self.assertEqual(b"", zipfile._strip_extra(b"", (self.ZIP64_EXTRA,)))
+        self.assertEqual(b"z", zipfile._strip_extra(b"z", (self.ZIP64_EXTRA,)))
+        self.assertEqual(
+            b"zz", zipfile._strip_extra(b"zz", (self.ZIP64_EXTRA,)))
+        self.assertEqual(
+            b"zzz", zipfile._strip_extra(b"zzz", (self.ZIP64_EXTRA,)))
+
+
 if __name__ == "__main__":
     unittest.main()

Lib/zipfile/__init__.py

@@ -207,6 +207,8 @@ def _strip_extra(extra, xids):
         i = j
     if not modified:
         return extra
+    if start != len(extra):
+        buffer.append(extra[start:])
     return b''.join(buffer)
 
 def _check_zipfile(fp):

Misc/NEWS.d/next/C API/2023-02-14-15-53-01.gh-issue-101907.HgF1N2.rst

@@ -0,0 +1 @@
+Removes use of non-standard C++ extension in public header files.

Misc/NEWS.d/next/Library/2022-09-05-12-17-34.gh-issue-88233.gff9qJ.rst

@@ -0,0 +1,2 @@
+Correctly preserve "extra" fields in ``zipfile`` regardless of their
+ordering relative to a zip64 "extra."

Misc/NEWS.d/next/Library/2023-02-11-13-23-29.gh-issue-97786.QjvQ1B.rst

@@ -0,0 +1,2 @@
+Fix potential undefined behaviour in corner cases of floating-point-to-time
+conversions.