Merge branch 'python:main' into perf-dataclass-order

Author: gesslerpd

.well-known/funding-manifest-urls

@@ -0,0 +1 @@
+https://www.python.org/funding.json

Doc/library/difflib.rst

@@ -351,9 +351,9 @@ diffs. For comparing directories and files, see also, the :mod:`filecmp` module.
 
 .. seealso::
 
-   `Pattern Matching: The Gestalt Approach <https://www.drdobbs.com/database/pattern-matching-the-gestalt-approach/184407970>`_
+   `Pattern Matching: The Gestalt Approach <https://jacobfilipp.com/DrDobbs/articles/DDJ/1988/8807/8807c/8807c.htm>`_
       Discussion of a similar algorithm by John W. Ratcliff and D. E. Metzener. This
-      was published in `Dr. Dobb's Journal <https://www.drdobbs.com/>`_ in July, 1988.
+      was published in Dr. Dobb's Journal in July, 1988.
 
 
 .. _sequence-matcher:

Doc/library/time.rst

@@ -935,7 +935,7 @@ These constants are used as parameters for :func:`clock_getres` and
 
 .. data:: CLOCK_TAI
 
-   `International Atomic Time <https://www.nist.gov/pml/time-and-frequency-division/nist-time-frequently-asked-questions-faq#tai>`_
+   `International Atomic Time <https://www.nist.gov/pml/time-and-frequency-division/how-utcnist-related-coordinated-universal-time-utc-international>`_
 
    The system must have a current leap second table in order for this to give
    the correct answer.  PTP or NTP software can maintain a leap second table.

Include/internal/pycore_interp_structs.h

@@ -88,6 +88,7 @@ struct _ceval_runtime_state {
         struct trampoline_api_st trampoline_api;
         FILE *map_file;
         Py_ssize_t persist_after_fork;
+       _PyFrameEvalFunction prev_eval_frame;
 #else
         int _not_used;
 #endif

Include/internal/pycore_pyatomic_ft_wrappers.h

@@ -111,6 +111,8 @@ extern "C" {
     _Py_atomic_load_ullong_relaxed(&value)
 #define FT_ATOMIC_ADD_SSIZE(value, new_value) \
     (void)_Py_atomic_add_ssize(&value, new_value)
+#define FT_MUTEX_LOCK(lock) PyMutex_Lock(lock)
+#define FT_MUTEX_UNLOCK(lock) PyMutex_Unlock(lock)
 
 #else
 #define FT_ATOMIC_LOAD_PTR(value) value
@@ -159,6 +161,8 @@ extern "C" {
 #define FT_ATOMIC_LOAD_ULLONG_RELAXED(value) value
 #define FT_ATOMIC_STORE_ULLONG_RELAXED(value, new_value) value = new_value
 #define FT_ATOMIC_ADD_SSIZE(value, new_value) (void)(value += new_value)
+#define FT_MUTEX_LOCK(lock) do {} while (0)
+#define FT_MUTEX_UNLOCK(lock) do {} while (0)
 
 #endif
 

Lib/asyncio/streams.py

@@ -271,7 +271,6 @@ def connection_lost(self, exc):
                 self._closed.set_exception(exc)
         super().connection_lost(exc)
         self._stream_reader_wr = None
-        self._stream_writer = None
         self._task = None
         self._transport = None
 

Lib/test/test_collections.py

@@ -736,7 +736,7 @@ def validate_abstract_methods(self, abc, *names):
             stubs = methodstubs.copy()
             del stubs[name]
             C = type('C', (abc,), stubs)
-            self.assertRaises(TypeError, C, name)
+            self.assertRaises(TypeError, C)
 
     def validate_isinstance(self, abc, name):
         stub = lambda s, *args: 0
@@ -963,7 +963,7 @@ class AnextOnly:
             async def __anext__(self):
                 raise StopAsyncIteration
         self.assertNotIsInstance(AnextOnly(), AsyncIterator)
-        self.validate_abstract_methods(AsyncIterator, '__anext__', '__aiter__')
+        self.validate_abstract_methods(AsyncIterator, '__anext__')
 
     def test_Iterable(self):
         # Check some non-iterables
@@ -1159,7 +1159,7 @@ def test_Iterator(self):
         for x in samples:
             self.assertIsInstance(x, Iterator)
             self.assertIsSubclass(type(x), Iterator)
-        self.validate_abstract_methods(Iterator, '__next__', '__iter__')
+        self.validate_abstract_methods(Iterator, '__next__')
 
         # Issue 10565
         class NextOnly:
@@ -1843,8 +1843,7 @@ def test_Mapping(self):
         for sample in [dict]:
             self.assertIsInstance(sample(), Mapping)
             self.assertIsSubclass(sample, Mapping)
-        self.validate_abstract_methods(Mapping, '__contains__', '__iter__', '__len__',
-            '__getitem__')
+        self.validate_abstract_methods(Mapping, '__iter__', '__len__', '__getitem__')
         class MyMapping(Mapping):
             def __len__(self):
                 return 0
@@ -1859,7 +1858,7 @@ def test_MutableMapping(self):
         for sample in [dict]:
             self.assertIsInstance(sample(), MutableMapping)
             self.assertIsSubclass(sample, MutableMapping)
-        self.validate_abstract_methods(MutableMapping, '__contains__', '__iter__', '__len__',
+        self.validate_abstract_methods(MutableMapping, '__iter__', '__len__',
             '__getitem__', '__setitem__', '__delitem__')
 
     def test_MutableMapping_subclass(self):
@@ -1898,8 +1897,7 @@ def test_Sequence(self):
         self.assertIsInstance(memoryview(b""), Sequence)
         self.assertIsSubclass(memoryview, Sequence)
         self.assertIsSubclass(str, Sequence)
-        self.validate_abstract_methods(Sequence, '__contains__', '__iter__', '__len__',
-            '__getitem__')
+        self.validate_abstract_methods(Sequence, '__len__', '__getitem__')
 
     def test_Sequence_mixins(self):
         class SequenceSubclass(Sequence):
@@ -1954,8 +1952,8 @@ def test_MutableSequence(self):
             self.assertIsSubclass(sample, MutableSequence)
         self.assertIsSubclass(array.array, MutableSequence)
         self.assertNotIsSubclass(str, MutableSequence)
-        self.validate_abstract_methods(MutableSequence, '__contains__', '__iter__',
-            '__len__', '__getitem__', '__setitem__', '__delitem__', 'insert')
+        self.validate_abstract_methods(MutableSequence, '__len__', '__getitem__',
+                                       '__setitem__', '__delitem__', 'insert')
 
     def test_MutableSequence_mixins(self):
         # Test the mixins of MutableSequence by creating a minimal concrete

Lib/test/test_hashlib.py

@@ -27,24 +27,17 @@
 from http.client import HTTPException
 
 
-default_builtin_hashes = {'md5', 'sha1', 'sha256', 'sha512', 'sha3', 'blake2'}
+default_builtin_hashes = {'md5', 'sha1', 'sha2', 'sha3', 'blake2'}
 # --with-builtin-hashlib-hashes override
 builtin_hashes = sysconfig.get_config_var("PY_BUILTIN_HASHLIB_HASHES")
 if builtin_hashes is None:
     builtin_hashes = default_builtin_hashes
 else:
-    builtin_hashes = {
-        m.strip() for m in builtin_hashes.strip('"').lower().split(",")
-    }
+    builtin_hash_names = builtin_hashes.strip('"').lower().split(",")
+    builtin_hashes = set(map(str.strip, builtin_hash_names))
 
-# hashlib with and without OpenSSL backend for PBKDF2
-# only import builtin_hashlib when all builtin hashes are available.
-# Otherwise import prints noise on stderr
+# Public 'hashlib' module with OpenSSL backend for PBKDF2.
 openssl_hashlib = import_fresh_module('hashlib', fresh=['_hashlib'])
-if builtin_hashes == default_builtin_hashes:
-    builtin_hashlib = import_fresh_module('hashlib', blocked=['_hashlib'])
-else:
-    builtin_hashlib = None
 
 try:
     from _hashlib import HASH, HASHXOF, openssl_md_meth_names, get_fips_mode

Lib/test/test_perf_profiler.py

@@ -162,48 +162,55 @@ def baz():
 
     @unittest.skipIf(support.check_bolt_optimized(), "fails on BOLT instrumented binaries")
     def test_sys_api(self):
-        code = """if 1:
-                import sys
-                def foo():
-                    pass
-
-                def spam():
-                    pass
+        for define_eval_hook in (False, True):
+            code = """if 1:
+                    import sys
+                    def foo():
+                        pass
 
-                def bar():
-                    sys.deactivate_stack_trampoline()
-                    foo()
-                    sys.activate_stack_trampoline("perf")
-                    spam()
+                    def spam():
+                        pass
 
-                def baz():
-                    bar()
+                    def bar():
+                        sys.deactivate_stack_trampoline()
+                        foo()
+                        sys.activate_stack_trampoline("perf")
+                        spam()
 
-                sys.activate_stack_trampoline("perf")
-                baz()
-                """
-        with temp_dir() as script_dir:
-            script = make_script(script_dir, "perftest", code)
-            env = {**os.environ, "PYTHON_JIT": "0"}
-            with subprocess.Popen(
-                [sys.executable, script],
-                text=True,
-                stderr=subprocess.PIPE,
-                stdout=subprocess.PIPE,
-                env=env,
-            ) as process:
-                stdout, stderr = process.communicate()
+                    def baz():
+                        bar()
 
-        self.assertEqual(stderr, "")
-        self.assertEqual(stdout, "")
+                    sys.activate_stack_trampoline("perf")
+                    baz()
+                    """
+            if define_eval_hook:
+                set_eval_hook = """if 1:
+                                import _testinternalcapi
+                                _testinternalcapi.set_eval_frame_record([])
+"""
+                code = set_eval_hook + code
+            with temp_dir() as script_dir:
+                script = make_script(script_dir, "perftest", code)
+                env = {**os.environ, "PYTHON_JIT": "0"}
+                with subprocess.Popen(
+                    [sys.executable, script],
+                    text=True,
+                    stderr=subprocess.PIPE,
+                    stdout=subprocess.PIPE,
+                    env=env,
+                ) as process:
+                    stdout, stderr = process.communicate()
 
-        perf_file = pathlib.Path(f"/tmp/perf-{process.pid}.map")
-        self.assertTrue(perf_file.exists())
-        perf_file_contents = perf_file.read_text()
-        self.assertNotIn(f"py::foo:{script}", perf_file_contents)
-        self.assertIn(f"py::spam:{script}", perf_file_contents)
-        self.assertIn(f"py::bar:{script}", perf_file_contents)
-        self.assertIn(f"py::baz:{script}", perf_file_contents)
+            self.assertEqual(stderr, "")
+            self.assertEqual(stdout, "")
+
+            perf_file = pathlib.Path(f"/tmp/perf-{process.pid}.map")
+            self.assertTrue(perf_file.exists())
+            perf_file_contents = perf_file.read_text()
+            self.assertNotIn(f"py::foo:{script}", perf_file_contents)
+            self.assertIn(f"py::spam:{script}", perf_file_contents)
+            self.assertIn(f"py::bar:{script}", perf_file_contents)
+            self.assertIn(f"py::baz:{script}", perf_file_contents)
 
     def test_sys_api_with_existing_trampoline(self):
         code = """if 1: