Mailman 3 January 2022 - Python-checkins

bpo-46542: test_lib2to3 uses support.infinite_recursion() (GH-31035)
by miss-islington Jan. 31, 2022

Jan. 31, 2022

https://github.com/python/cpython/commit/30463860796790d3be97b76744290e4c36… commit: 30463860796790d3be97b76744290e4c364ad765 branch: 3.9 author: Miss Islington (bot) <31488909+miss-islington(a)users.noreply.github.com> committer: miss-islington <31488909+miss-islington(a)users.noreply.github.com> date: 2022-01-31T12:03:44-08:00 summary: bpo-46542: test_lib2to3 uses support.infinite_recursion() (GH-31035) * bpo-46542: test_lib2to3 uses support.infinite_recursion() Fix a Python crash in test_lib2to3 when using Python built in debug mode: limit the recursion limit. The test_all_project_files() test of test_lib2to3 now uses the test.support.infinite_recursion() context manager when processing the infinite_recursion.py file to prevent a crash when Python is built in debug mode. The two test_all_project_files() tests now use subTest() and log the refactored/parsed filename (if test_lib2to3 is run in verbose mode). * Update Lib/lib2to3/tests/data/infinite_recursion.py Co-authored-by: Jelle Zijlstra <jelle.zijlstra(a)gmail.com> Co-authored-by: Łukasz Langa <lukasz(a)langa.pl> Co-authored-by: Jelle Zijlstra <jelle.zijlstra(a)gmail.com> (cherry picked from commit ee0ac328d38a86f7907598c94cb88a97635b32f8) Co-authored-by: Victor Stinner <vstinner(a)python.org> files: A Misc/NEWS.d/next/Tests/2022-01-31-17-34-13.bpo-46542.RTMm1T.rst M Lib/lib2to3/pytree.py M Lib/lib2to3/tests/data/infinite_recursion.py M Lib/lib2to3/tests/test_all_fixers.py M Lib/lib2to3/tests/test_parser.py diff --git a/Lib/lib2to3/pytree.py b/Lib/lib2to3/pytree.py index 2a6ef2ef5240a..729023df0284e 100644 --- a/Lib/lib2to3/pytree.py +++ b/Lib/lib2to3/pytree.py @@ -720,8 +720,8 @@ def generate_matches(self, nodes): r[self.name] = nodes[:count] yield count, r except RuntimeError: - # We fall back to the iterative pattern matching scheme if the recursive - # scheme hits the recursion limit. + # Fall back to the iterative pattern matching scheme if the + # recursive scheme hits the recursion limit (RecursionError). for count, r in self._iterative_matches(nodes): if self.name: r[self.name] = nodes[:count] diff --git a/Lib/lib2to3/tests/data/infinite_recursion.py b/Lib/lib2to3/tests/data/infinite_recursion.py index 71715ef29dc48..acc62ed4f1a44 100644 --- a/Lib/lib2to3/tests/data/infinite_recursion.py +++ b/Lib/lib2to3/tests/data/infinite_recursion.py @@ -1,5 +1,5 @@ -# This file is used to verify that 2to3 falls back to a slower, iterative pattern matching -# scheme in the event that the faster recursive system fails due to infinite recursion. +# Verify that 2to3 falls back from the recursive pattern matching scheme to a +# slower, iterative scheme in the event of a RecursionError. from ctypes import * STRING = c_char_p diff --git a/Lib/lib2to3/tests/test_all_fixers.py b/Lib/lib2to3/tests/test_all_fixers.py index c0507cf3fbcbf..a265941490d5d 100644 --- a/Lib/lib2to3/tests/test_all_fixers.py +++ b/Lib/lib2to3/tests/test_all_fixers.py @@ -6,8 +6,10 @@ # Author: Collin Winter # Python imports -import unittest +import os.path +import sys import test.support +import unittest # Local imports from . import support @@ -19,9 +21,22 @@ class Test_all(support.TestCase): def setUp(self): self.refactor = support.get_refactorer() + def refactor_file(self, filepath): + if test.support.verbose: + print(f"Refactor file: {filepath}") + if os.path.basename(filepath) == 'infinite_recursion.py': + # bpo-46542: Processing infinite_recursion.py can crash Python + # if Python is built in debug mode: lower the recursion limit + # to prevent a crash. + with test.support.infinite_recursion(150): + self.refactor.refactor_file(filepath) + else: + self.refactor.refactor_file(filepath) + def test_all_project_files(self): for filepath in support.all_project_files(): - self.refactor.refactor_file(filepath) + with self.subTest(filepath=filepath): + self.refactor_file(filepath) if __name__ == '__main__': unittest.main() diff --git a/Lib/lib2to3/tests/test_parser.py b/Lib/lib2to3/tests/test_parser.py index 034b5039cf00c..3884872437c47 100644 --- a/Lib/lib2to3/tests/test_parser.py +++ b/Lib/lib2to3/tests/test_parser.py @@ -20,6 +20,7 @@ import subprocess import sys import tempfile +import test.support import unittest # Local imports @@ -582,25 +583,31 @@ class TestParserIdempotency(support.TestCase): """A cut-down version of pytree_idempotency.py.""" + def parse_file(self, filepath): + if test.support.verbose: + print(f"Parse file: {filepath}") + with open(filepath, "rb") as fp: + encoding = tokenize.detect_encoding(fp.readline)[0] + self.assertIsNotNone(encoding, + "can't detect encoding for %s" % filepath) + with open(filepath, "r", encoding=encoding) as fp: + source = fp.read() + try: + tree = driver.parse_string(source) + except ParseError: + try: + tree = driver_no_print_statement.parse_string(source) + except ParseError as err: + self.fail('ParseError on file %s (%s)' % (filepath, err)) + new = str(tree) + if new != source: + print(diff_texts(source, new, filepath)) + self.fail("Idempotency failed: %s" % filepath) + def test_all_project_files(self): for filepath in support.all_project_files(): - with open(filepath, "rb") as fp: - encoding = tokenize.detect_encoding(fp.readline)[0] - self.assertIsNotNone(encoding, - "can't detect encoding for %s" % filepath) - with open(filepath, "r", encoding=encoding) as fp: - source = fp.read() - try: - tree = driver.parse_string(source) - except ParseError: - try: - tree = driver_no_print_statement.parse_string(source) - except ParseError as err: - self.fail('ParseError on file %s (%s)' % (filepath, err)) - new = str(tree) - if new != source: - print(diff_texts(source, new, filepath)) - self.fail("Idempotency failed: %s" % filepath) + with self.subTest(filepath=filepath): + self.parse_file(filepath) def test_extended_unpacking(self): driver.parse_string("a, *b, c = x\n") diff --git a/Misc/NEWS.d/next/Tests/2022-01-31-17-34-13.bpo-46542.RTMm1T.rst b/Misc/NEWS.d/next/Tests/2022-01-31-17-34-13.bpo-46542.RTMm1T.rst new file mode 100644 index 0000000000000..5596498724930 --- /dev/null +++ b/Misc/NEWS.d/next/Tests/2022-01-31-17-34-13.bpo-46542.RTMm1T.rst @@ -0,0 +1,2 @@ +Fix a Python crash in test_lib2to3 when using Python built in debug mode: +limit the recursion limit. Patch by Victor Stinner.

1 0

bpo-46542: test_lib2to3 uses support.infinite_recursion() (GH-31035)
by miss-islington Jan. 31, 2022

Jan. 31, 2022

https://github.com/python/cpython/commit/34794517d1380e206fbbc9735b8aaaf07a… commit: 34794517d1380e206fbbc9735b8aaaf07a5237ce branch: 3.10 author: Miss Islington (bot) <31488909+miss-islington(a)users.noreply.github.com> committer: miss-islington <31488909+miss-islington(a)users.noreply.github.com> date: 2022-01-31T12:03:40-08:00 summary: bpo-46542: test_lib2to3 uses support.infinite_recursion() (GH-31035) * bpo-46542: test_lib2to3 uses support.infinite_recursion() Fix a Python crash in test_lib2to3 when using Python built in debug mode: limit the recursion limit. The test_all_project_files() test of test_lib2to3 now uses the test.support.infinite_recursion() context manager when processing the infinite_recursion.py file to prevent a crash when Python is built in debug mode. The two test_all_project_files() tests now use subTest() and log the refactored/parsed filename (if test_lib2to3 is run in verbose mode). * Update Lib/lib2to3/tests/data/infinite_recursion.py Co-authored-by: Jelle Zijlstra <jelle.zijlstra(a)gmail.com> Co-authored-by: Łukasz Langa <lukasz(a)langa.pl> Co-authored-by: Jelle Zijlstra <jelle.zijlstra(a)gmail.com> (cherry picked from commit ee0ac328d38a86f7907598c94cb88a97635b32f8) Co-authored-by: Victor Stinner <vstinner(a)python.org> files: A Misc/NEWS.d/next/Tests/2022-01-31-17-34-13.bpo-46542.RTMm1T.rst M Lib/lib2to3/pytree.py M Lib/lib2to3/tests/data/infinite_recursion.py M Lib/lib2to3/tests/test_all_fixers.py M Lib/lib2to3/tests/test_parser.py diff --git a/Lib/lib2to3/pytree.py b/Lib/lib2to3/pytree.py index 2a6ef2ef5240a..729023df0284e 100644 --- a/Lib/lib2to3/pytree.py +++ b/Lib/lib2to3/pytree.py @@ -720,8 +720,8 @@ def generate_matches(self, nodes): r[self.name] = nodes[:count] yield count, r except RuntimeError: - # We fall back to the iterative pattern matching scheme if the recursive - # scheme hits the recursion limit. + # Fall back to the iterative pattern matching scheme if the + # recursive scheme hits the recursion limit (RecursionError). for count, r in self._iterative_matches(nodes): if self.name: r[self.name] = nodes[:count] diff --git a/Lib/lib2to3/tests/data/infinite_recursion.py b/Lib/lib2to3/tests/data/infinite_recursion.py index 71715ef29dc48..acc62ed4f1a44 100644 --- a/Lib/lib2to3/tests/data/infinite_recursion.py +++ b/Lib/lib2to3/tests/data/infinite_recursion.py @@ -1,5 +1,5 @@ -# This file is used to verify that 2to3 falls back to a slower, iterative pattern matching -# scheme in the event that the faster recursive system fails due to infinite recursion. +# Verify that 2to3 falls back from the recursive pattern matching scheme to a +# slower, iterative scheme in the event of a RecursionError. from ctypes import * STRING = c_char_p diff --git a/Lib/lib2to3/tests/test_all_fixers.py b/Lib/lib2to3/tests/test_all_fixers.py index c0507cf3fbcbf..a265941490d5d 100644 --- a/Lib/lib2to3/tests/test_all_fixers.py +++ b/Lib/lib2to3/tests/test_all_fixers.py @@ -6,8 +6,10 @@ # Author: Collin Winter # Python imports -import unittest +import os.path +import sys import test.support +import unittest # Local imports from . import support @@ -19,9 +21,22 @@ class Test_all(support.TestCase): def setUp(self): self.refactor = support.get_refactorer() + def refactor_file(self, filepath): + if test.support.verbose: + print(f"Refactor file: {filepath}") + if os.path.basename(filepath) == 'infinite_recursion.py': + # bpo-46542: Processing infinite_recursion.py can crash Python + # if Python is built in debug mode: lower the recursion limit + # to prevent a crash. + with test.support.infinite_recursion(150): + self.refactor.refactor_file(filepath) + else: + self.refactor.refactor_file(filepath) + def test_all_project_files(self): for filepath in support.all_project_files(): - self.refactor.refactor_file(filepath) + with self.subTest(filepath=filepath): + self.refactor_file(filepath) if __name__ == '__main__': unittest.main() diff --git a/Lib/lib2to3/tests/test_parser.py b/Lib/lib2to3/tests/test_parser.py index 5eefb5aad7d49..90a1b34b5fff8 100644 --- a/Lib/lib2to3/tests/test_parser.py +++ b/Lib/lib2to3/tests/test_parser.py @@ -20,6 +20,7 @@ import subprocess import sys import tempfile +import test.support import unittest # Local imports @@ -586,25 +587,31 @@ class TestParserIdempotency(support.TestCase): """A cut-down version of pytree_idempotency.py.""" + def parse_file(self, filepath): + if test.support.verbose: + print(f"Parse file: {filepath}") + with open(filepath, "rb") as fp: + encoding = tokenize.detect_encoding(fp.readline)[0] + self.assertIsNotNone(encoding, + "can't detect encoding for %s" % filepath) + with open(filepath, "r", encoding=encoding) as fp: + source = fp.read() + try: + tree = driver.parse_string(source) + except ParseError: + try: + tree = driver_no_print_statement.parse_string(source) + except ParseError as err: + self.fail('ParseError on file %s (%s)' % (filepath, err)) + new = str(tree) + if new != source: + print(diff_texts(source, new, filepath)) + self.fail("Idempotency failed: %s" % filepath) + def test_all_project_files(self): for filepath in support.all_project_files(): - with open(filepath, "rb") as fp: - encoding = tokenize.detect_encoding(fp.readline)[0] - self.assertIsNotNone(encoding, - "can't detect encoding for %s" % filepath) - with open(filepath, "r", encoding=encoding) as fp: - source = fp.read() - try: - tree = driver.parse_string(source) - except ParseError: - try: - tree = driver_no_print_statement.parse_string(source) - except ParseError as err: - self.fail('ParseError on file %s (%s)' % (filepath, err)) - new = str(tree) - if new != source: - print(diff_texts(source, new, filepath)) - self.fail("Idempotency failed: %s" % filepath) + with self.subTest(filepath=filepath): + self.parse_file(filepath) def test_extended_unpacking(self): driver.parse_string("a, *b, c = x\n") diff --git a/Misc/NEWS.d/next/Tests/2022-01-31-17-34-13.bpo-46542.RTMm1T.rst b/Misc/NEWS.d/next/Tests/2022-01-31-17-34-13.bpo-46542.RTMm1T.rst new file mode 100644 index 0000000000000..5596498724930 --- /dev/null +++ b/Misc/NEWS.d/next/Tests/2022-01-31-17-34-13.bpo-46542.RTMm1T.rst @@ -0,0 +1,2 @@ +Fix a Python crash in test_lib2to3 when using Python built in debug mode: +limit the recursion limit. Patch by Victor Stinner.

1 0

bpo-46542: test_lib2to3 uses support.infinite_recursion() (GH-31035)
by ambv Jan. 31, 2022

Jan. 31, 2022

https://github.com/python/cpython/commit/ee0ac328d38a86f7907598c94cb88a9763… commit: ee0ac328d38a86f7907598c94cb88a97635b32f8 branch: main author: Victor Stinner <vstinner(a)python.org> committer: ambv <lukasz(a)langa.pl> date: 2022-01-31T18:46:09+01:00 summary: bpo-46542: test_lib2to3 uses support.infinite_recursion() (GH-31035) * bpo-46542: test_lib2to3 uses support.infinite_recursion() Fix a Python crash in test_lib2to3 when using Python built in debug mode: limit the recursion limit. The test_all_project_files() test of test_lib2to3 now uses the test.support.infinite_recursion() context manager when processing the infinite_recursion.py file to prevent a crash when Python is built in debug mode. The two test_all_project_files() tests now use subTest() and log the refactored/parsed filename (if test_lib2to3 is run in verbose mode). * Update Lib/lib2to3/tests/data/infinite_recursion.py Co-authored-by: Jelle Zijlstra <jelle.zijlstra(a)gmail.com> Co-authored-by: Łukasz Langa <lukasz(a)langa.pl> Co-authored-by: Jelle Zijlstra <jelle.zijlstra(a)gmail.com> files: A Misc/NEWS.d/next/Tests/2022-01-31-17-34-13.bpo-46542.RTMm1T.rst M Lib/lib2to3/pytree.py M Lib/lib2to3/tests/data/infinite_recursion.py M Lib/lib2to3/tests/test_all_fixers.py M Lib/lib2to3/tests/test_parser.py diff --git a/Lib/lib2to3/pytree.py b/Lib/lib2to3/pytree.py index 2a6ef2ef5240a..729023df0284e 100644 --- a/Lib/lib2to3/pytree.py +++ b/Lib/lib2to3/pytree.py @@ -720,8 +720,8 @@ def generate_matches(self, nodes): r[self.name] = nodes[:count] yield count, r except RuntimeError: - # We fall back to the iterative pattern matching scheme if the recursive - # scheme hits the recursion limit. + # Fall back to the iterative pattern matching scheme if the + # recursive scheme hits the recursion limit (RecursionError). for count, r in self._iterative_matches(nodes): if self.name: r[self.name] = nodes[:count] diff --git a/Lib/lib2to3/tests/data/infinite_recursion.py b/Lib/lib2to3/tests/data/infinite_recursion.py index 71715ef29dc48..acc62ed4f1a44 100644 --- a/Lib/lib2to3/tests/data/infinite_recursion.py +++ b/Lib/lib2to3/tests/data/infinite_recursion.py @@ -1,5 +1,5 @@ -# This file is used to verify that 2to3 falls back to a slower, iterative pattern matching -# scheme in the event that the faster recursive system fails due to infinite recursion. +# Verify that 2to3 falls back from the recursive pattern matching scheme to a +# slower, iterative scheme in the event of a RecursionError. from ctypes import * STRING = c_char_p diff --git a/Lib/lib2to3/tests/test_all_fixers.py b/Lib/lib2to3/tests/test_all_fixers.py index c0507cf3fbcbf..a265941490d5d 100644 --- a/Lib/lib2to3/tests/test_all_fixers.py +++ b/Lib/lib2to3/tests/test_all_fixers.py @@ -6,8 +6,10 @@ # Author: Collin Winter # Python imports -import unittest +import os.path +import sys import test.support +import unittest # Local imports from . import support @@ -19,9 +21,22 @@ class Test_all(support.TestCase): def setUp(self): self.refactor = support.get_refactorer() + def refactor_file(self, filepath): + if test.support.verbose: + print(f"Refactor file: {filepath}") + if os.path.basename(filepath) == 'infinite_recursion.py': + # bpo-46542: Processing infinite_recursion.py can crash Python + # if Python is built in debug mode: lower the recursion limit + # to prevent a crash. + with test.support.infinite_recursion(150): + self.refactor.refactor_file(filepath) + else: + self.refactor.refactor_file(filepath) + def test_all_project_files(self): for filepath in support.all_project_files(): - self.refactor.refactor_file(filepath) + with self.subTest(filepath=filepath): + self.refactor_file(filepath) if __name__ == '__main__': unittest.main() diff --git a/Lib/lib2to3/tests/test_parser.py b/Lib/lib2to3/tests/test_parser.py index ff4f8078878d8..74a5787574209 100644 --- a/Lib/lib2to3/tests/test_parser.py +++ b/Lib/lib2to3/tests/test_parser.py @@ -20,6 +20,7 @@ import subprocess import sys import tempfile +import test.support import unittest # Local imports @@ -589,25 +590,31 @@ class TestParserIdempotency(support.TestCase): """A cut-down version of pytree_idempotency.py.""" + def parse_file(self, filepath): + if test.support.verbose: + print(f"Parse file: {filepath}") + with open(filepath, "rb") as fp: + encoding = tokenize.detect_encoding(fp.readline)[0] + self.assertIsNotNone(encoding, + "can't detect encoding for %s" % filepath) + with open(filepath, "r", encoding=encoding) as fp: + source = fp.read() + try: + tree = driver.parse_string(source) + except ParseError: + try: + tree = driver_no_print_statement.parse_string(source) + except ParseError as err: + self.fail('ParseError on file %s (%s)' % (filepath, err)) + new = str(tree) + if new != source: + print(diff_texts(source, new, filepath)) + self.fail("Idempotency failed: %s" % filepath) + def test_all_project_files(self): for filepath in support.all_project_files(): - with open(filepath, "rb") as fp: - encoding = tokenize.detect_encoding(fp.readline)[0] - self.assertIsNotNone(encoding, - "can't detect encoding for %s" % filepath) - with open(filepath, "r", encoding=encoding) as fp: - source = fp.read() - try: - tree = driver.parse_string(source) - except ParseError: - try: - tree = driver_no_print_statement.parse_string(source) - except ParseError as err: - self.fail('ParseError on file %s (%s)' % (filepath, err)) - new = str(tree) - if new != source: - print(diff_texts(source, new, filepath)) - self.fail("Idempotency failed: %s" % filepath) + with self.subTest(filepath=filepath): + self.parse_file(filepath) def test_extended_unpacking(self): driver.parse_string("a, *b, c = x\n") diff --git a/Misc/NEWS.d/next/Tests/2022-01-31-17-34-13.bpo-46542.RTMm1T.rst b/Misc/NEWS.d/next/Tests/2022-01-31-17-34-13.bpo-46542.RTMm1T.rst new file mode 100644 index 0000000000000..5596498724930 --- /dev/null +++ b/Misc/NEWS.d/next/Tests/2022-01-31-17-34-13.bpo-46542.RTMm1T.rst @@ -0,0 +1,2 @@ +Fix a Python crash in test_lib2to3 when using Python built in debug mode: +limit the recursion limit. Patch by Victor Stinner.

1 0

bpo-46407: Fix long_mod refleak (GH-31025)
by ambv Jan. 31, 2022

Jan. 31, 2022

https://github.com/python/cpython/commit/768569325abc0a9cd5aae65c531889ec39… commit: 768569325abc0a9cd5aae65c531889ec390847aa branch: main author: Ken Jin <28750310+Fidget-Spinner(a)users.noreply.github.com> committer: ambv <lukasz(a)langa.pl> date: 2022-01-31T11:41:14+01:00 summary: bpo-46407: Fix long_mod refleak (GH-31025) files: M Objects/longobject.c diff --git a/Objects/longobject.c b/Objects/longobject.c index cc4ceec21aaca..e1f6a6402841b 100644 --- a/Objects/longobject.c +++ b/Objects/longobject.c @@ -2744,7 +2744,7 @@ long_rem(PyLongObject *a, PyLongObject *b, PyLongObject **prem) } else { /* Slow path using divrem. */ - x_divrem(a, b, prem); + Py_XDECREF(x_divrem(a, b, prem)); if (*prem == NULL) return -1; }

1 0

fFx refleak in isinstance error path (GH-31005)
by pablogsal Jan. 29, 2022

Jan. 29, 2022

https://github.com/python/cpython/commit/8fb36494501aad5b0c1d34311c9743c60b… commit: 8fb36494501aad5b0c1d34311c9743c60bb9926c branch: main author: Ken Jin <28750310+Fidget-Spinner(a)users.noreply.github.com> committer: pablogsal <Pablogsal(a)gmail.com> date: 2022-01-29T14:34:12Z summary: fFx refleak in isinstance error path (GH-31005) files: M Python/ceval.c diff --git a/Python/ceval.c b/Python/ceval.c index fa14a1c04f1e0..b69d5aa9d3206 100644 --- a/Python/ceval.c +++ b/Python/ceval.c @@ -4946,6 +4946,7 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, InterpreterFrame *frame, int thr PyObject *inst = TOP(); int retval = PyObject_IsInstance(inst, cls); if (retval < 0) { + Py_DECREF(cls); goto error; } PyObject *res = PyBool_FromLong(retval);

1 0

bpo-26552: Fixed case where failing `asyncio.ensure_future` did not close the coroutine (#30288) (#31003)
by gvanrossum Jan. 29, 2022

Jan. 29, 2022

https://github.com/python/cpython/commit/a5451c96a14ac0c3ee7cef7b5c52ab1d78… commit: a5451c96a14ac0c3ee7cef7b5c52ab1d783ec613 branch: 3.10 author: Kumar Aditya <59607654+kumaraditya303(a)users.noreply.github.com> committer: gvanrossum <gvanrossum(a)gmail.com> date: 2022-01-28T22:57:18-08:00 summary: bpo-26552: Fixed case where failing `asyncio.ensure_future` did not close the coroutine (#30288) (#31003) files: A Misc/NEWS.d/next/Library/2021-12-29-13-42-55.bpo-26552.1BqeAn.rst M Lib/asyncio/tasks.py M Lib/test/test_asyncio/test_base_events.py diff --git a/Lib/asyncio/tasks.py b/Lib/asyncio/tasks.py index 445a9f51226ed..2bee5c050ded7 100644 --- a/Lib/asyncio/tasks.py +++ b/Lib/asyncio/tasks.py @@ -621,17 +621,23 @@ def _ensure_future(coro_or_future, *, loop=None): raise ValueError('The future belongs to a different loop than ' 'the one specified as the loop argument') return coro_or_future - + called_wrap_awaitable = False if not coroutines.iscoroutine(coro_or_future): if inspect.isawaitable(coro_or_future): coro_or_future = _wrap_awaitable(coro_or_future) + called_wrap_awaitable = True else: raise TypeError('An asyncio.Future, a coroutine or an awaitable ' 'is required') if loop is None: loop = events._get_event_loop(stacklevel=4) - return loop.create_task(coro_or_future) + try: + return loop.create_task(coro_or_future) + except RuntimeError: + if not called_wrap_awaitable: + coro_or_future.close() + raise @types.coroutine diff --git a/Lib/test/test_asyncio/test_base_events.py b/Lib/test/test_asyncio/test_base_events.py index f7ef23e55090e..d77bf95a7b372 100644 --- a/Lib/test/test_asyncio/test_base_events.py +++ b/Lib/test/test_asyncio/test_base_events.py @@ -18,7 +18,7 @@ from test.support.script_helper import assert_python_ok from test.support import os_helper from test.support import socket_helper - +import warnings MOCK_ANY = mock.ANY PY34 = sys.version_info >= (3, 4) @@ -801,6 +801,17 @@ def create_task(self, coro): task._log_destroy_pending = False coro.close() + def test_create_task_error_closes_coro(self): + async def test(): + pass + loop = asyncio.new_event_loop() + loop.close() + with warnings.catch_warnings(record=True) as w: + with self.assertRaises(RuntimeError): + asyncio.ensure_future(test(), loop=loop) + self.assertEqual(len(w), 0) + + def test_create_named_task_with_default_factory(self): async def test(): pass diff --git a/Misc/NEWS.d/next/Library/2021-12-29-13-42-55.bpo-26552.1BqeAn.rst b/Misc/NEWS.d/next/Library/2021-12-29-13-42-55.bpo-26552.1BqeAn.rst new file mode 100644 index 0000000000000..85b6a64ef53d1 --- /dev/null +++ b/Misc/NEWS.d/next/Library/2021-12-29-13-42-55.bpo-26552.1BqeAn.rst @@ -0,0 +1 @@ +Fixed case where failing :func:`asyncio.ensure_future` did not close the coroutine. Patch by Kumar Aditya. \ No newline at end of file

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Fix a `UnboundLocalError` bug in `test_sysconfig` (GH-31000)
by pablogsal Jan. 29, 2022

Jan. 29, 2022

https://github.com/python/cpython/commit/8b1b27f1939cc4060531d198fdb09242f2… commit: 8b1b27f1939cc4060531d198fdb09242f247ca7c branch: main author: Brett Cannon <brett(a)python.org> committer: pablogsal <Pablogsal(a)gmail.com> date: 2022-01-29T00:43:36Z summary: Fix a `UnboundLocalError` bug in `test_sysconfig` (GH-31000) Accidentally introduced by GH-24502 files: M Lib/test/test_sysconfig.py diff --git a/Lib/test/test_sysconfig.py b/Lib/test/test_sysconfig.py index 7ba004d77315d..2c4120979d9a2 100644 --- a/Lib/test/test_sysconfig.py +++ b/Lib/test/test_sysconfig.py @@ -436,8 +436,8 @@ def test_triplet_in_ext_suffix(self): expected_suffixes = 'i386-linux-gnu.so', 'x86_64-linux-gnux32.so', 'i386-linux-musl.so' else: # 8 byte pointer size expected_suffixes = 'x86_64-linux-gnu.so', 'x86_64-linux-musl.so' - self.assertTrue(suffix.endswith(expected_suffixes), - f'unexpected suffix {suffix!r}') + self.assertTrue(suffix.endswith(expected_suffixes), + f'unexpected suffix {suffix!r}') @unittest.skipUnless(sys.platform == 'darwin', 'OS X-specific test') def test_osx_ext_suffix(self):

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bpo-29688: document and test `pathlib.Path.absolute()` (GH-26153)
by brettcannon Jan. 28, 2022

Jan. 28, 2022

https://github.com/python/cpython/commit/18cb2ef46c9998480f7182048435bc5826… commit: 18cb2ef46c9998480f7182048435bc58265c88f2 branch: main author: Barney Gale <barney.gale(a)gmail.com> committer: brettcannon <brett(a)python.org> date: 2022-01-28T15:40:55-08:00 summary: bpo-29688: document and test `pathlib.Path.absolute()` (GH-26153) Co-authored-by: Brett Cannon <brett(a)python.org> Co-authored-by: Brian Helba <brian.helba(a)kitware.com> files: A Misc/NEWS.d/next/Library/2022-01-05-03-21-21.bpo-29688.W06bSH.rst M Doc/library/pathlib.rst M Lib/pathlib.py M Lib/test/test_pathlib.py diff --git a/Doc/library/pathlib.rst b/Doc/library/pathlib.rst index b6507eb4d6fa2..7ab603fd133b8 100644 --- a/Doc/library/pathlib.rst +++ b/Doc/library/pathlib.rst @@ -1052,6 +1052,18 @@ call fails (for example because the path doesn't exist). Added return value, return the new Path instance. +.. method:: Path.absolute() + + Make the path absolute, without normalization or resolving symlinks. + Returns a new path object:: + + >>> p = Path('tests') + >>> p + PosixPath('tests') + >>> p.absolute() + PosixPath('/home/antoine/pathlib/tests') + + .. method:: Path.resolve(strict=False) Make the path absolute, resolving any symlinks. A new path object is @@ -1239,13 +1251,14 @@ Below is a table mapping various :mod:`os` functions to their corresponding Not all pairs of functions/methods below are equivalent. Some of them, despite having some overlapping use-cases, have different semantics. They - include :func:`os.path.abspath` and :meth:`Path.resolve`, + include :func:`os.path.abspath` and :meth:`Path.absolute`, :func:`os.path.relpath` and :meth:`PurePath.relative_to`. ==================================== ============================== :mod:`os` and :mod:`os.path` :mod:`pathlib` ==================================== ============================== -:func:`os.path.abspath` :meth:`Path.resolve` [#]_ +:func:`os.path.abspath` :meth:`Path.absolute` [#]_ +:func:`os.path.realpath` :meth:`Path.resolve` :func:`os.chmod` :meth:`Path.chmod` :func:`os.mkdir` :meth:`Path.mkdir` :func:`os.makedirs` :meth:`Path.mkdir` @@ -1278,5 +1291,5 @@ Below is a table mapping various :mod:`os` functions to their corresponding .. rubric:: Footnotes -.. [#] :func:`os.path.abspath` does not resolve symbolic links while :meth:`Path.resolve` does. +.. [#] :func:`os.path.abspath` normalizes the resulting path, which may change its meaning in the presence of symlinks, while :meth:`Path.absolute` does not. .. [#] :meth:`Path.relative_to` requires ``self`` to be the subpath of the argument, but :func:`os.path.relpath` does not. diff --git a/Lib/pathlib.py b/Lib/pathlib.py index d42ee4dc90b43..1603325180795 100644 --- a/Lib/pathlib.py +++ b/Lib/pathlib.py @@ -1043,24 +1043,19 @@ def rglob(self, pattern): yield p def absolute(self): - """Return an absolute version of this path. This function works - even if the path doesn't point to anything. + """Return an absolute version of this path by prepending the current + working directory. No normalization or symlink resolution is performed. - No normalization is done, i.e. all '.' and '..' will be kept along. Use resolve() to get the canonical path to a file. """ - # XXX untested yet! if self.is_absolute(): return self - # FIXME this must defer to the specific flavour (and, under Windows, - # use nt._getfullpathname()) return self._from_parts([self._accessor.getcwd()] + self._parts) def resolve(self, strict=False): """ Make the path absolute, resolving all symlinks on the way and also - normalizing it (for example turning slashes into backslashes under - Windows). + normalizing it. """ def check_eloop(e): diff --git a/Lib/test/test_pathlib.py b/Lib/test/test_pathlib.py index 1bf21120a36ca..3fbf1d1f7cd9d 100644 --- a/Lib/test/test_pathlib.py +++ b/Lib/test/test_pathlib.py @@ -1456,6 +1456,28 @@ def test_cwd(self): p = self.cls.cwd() self._test_cwd(p) + def test_absolute_common(self): + P = self.cls + + with mock.patch("pathlib._normal_accessor.getcwd") as getcwd: + getcwd.return_value = BASE + + # Simple relative paths. + self.assertEqual(str(P().absolute()), BASE) + self.assertEqual(str(P('.').absolute()), BASE) + self.assertEqual(str(P('a').absolute()), os.path.join(BASE, 'a')) + self.assertEqual(str(P('a', 'b', 'c').absolute()), os.path.join(BASE, 'a', 'b', 'c')) + + # Symlinks should not be resolved. + self.assertEqual(str(P('linkB', 'fileB').absolute()), os.path.join(BASE, 'linkB', 'fileB')) + self.assertEqual(str(P('brokenLink').absolute()), os.path.join(BASE, 'brokenLink')) + self.assertEqual(str(P('brokenLinkLoop').absolute()), os.path.join(BASE, 'brokenLinkLoop')) + + # '..' entries should be preserved and not normalised. + self.assertEqual(str(P('..').absolute()), os.path.join(BASE, '..')) + self.assertEqual(str(P('a', '..').absolute()), os.path.join(BASE, 'a', '..')) + self.assertEqual(str(P('..', 'b').absolute()), os.path.join(BASE, '..', 'b')) + def _test_home(self, p): q = self.cls(os.path.expanduser('~')) self.assertEqual(p, q) @@ -2463,6 +2485,17 @@ def test_glob_empty_pattern(self): class PosixPathTest(_BasePathTest, unittest.TestCase): cls = pathlib.PosixPath + def test_absolute(self): + P = self.cls + self.assertEqual(str(P('/').absolute()), '/') + self.assertEqual(str(P('/a').absolute()), '/a') + self.assertEqual(str(P('/a/b').absolute()), '/a/b') + + # '//'-prefixed absolute path (supported by POSIX). + self.assertEqual(str(P('//').absolute()), '//') + self.assertEqual(str(P('//a').absolute()), '//a') + self.assertEqual(str(P('//a/b').absolute()), '//a/b') + def _check_symlink_loop(self, *args, strict=True): path = self.cls(*args) with self.assertRaises(RuntimeError): @@ -2628,6 +2661,31 @@ def test_handling_bad_descriptor(self): class WindowsPathTest(_BasePathTest, unittest.TestCase): cls = pathlib.WindowsPath + def test_absolute(self): + P = self.cls + + # Simple absolute paths. + self.assertEqual(str(P('c:\\').absolute()), 'c:\\') + self.assertEqual(str(P('c:\\a').absolute()), 'c:\\a') + self.assertEqual(str(P('c:\\a\\b').absolute()), 'c:\\a\\b') + + # UNC absolute paths. + share = '\\\\server\\share\\' + self.assertEqual(str(P(share).absolute()), share) + self.assertEqual(str(P(share + 'a').absolute()), share + 'a') + self.assertEqual(str(P(share + 'a\\b').absolute()), share + 'a\\b') + + # UNC relative paths. + with mock.patch("pathlib._normal_accessor.getcwd") as getcwd: + getcwd.return_value = share + + self.assertEqual(str(P().absolute()), share) + self.assertEqual(str(P('.').absolute()), share) + self.assertEqual(str(P('a').absolute()), os.path.join(share, 'a')) + self.assertEqual(str(P('a', 'b', 'c').absolute()), + os.path.join(share, 'a', 'b', 'c')) + + def test_glob(self): P = self.cls p = P(BASE) diff --git a/Misc/NEWS.d/next/Library/2022-01-05-03-21-21.bpo-29688.W06bSH.rst b/Misc/NEWS.d/next/Library/2022-01-05-03-21-21.bpo-29688.W06bSH.rst new file mode 100644 index 0000000000000..1a202e59b075e --- /dev/null +++ b/Misc/NEWS.d/next/Library/2022-01-05-03-21-21.bpo-29688.W06bSH.rst @@ -0,0 +1 @@ +Document :meth:`pathlib.Path.absolute` (which has always existed).

1 0

bpo-43112: detect musl as a separate SOABI (GH-24502)
by miss-islington Jan. 28, 2022

Jan. 28, 2022

https://github.com/python/cpython/commit/1f036ede59e2c4befc07714cf76603c591… commit: 1f036ede59e2c4befc07714cf76603c591d5c972 branch: main author: Natanael Copa <ncopa(a)alpinelinux.org> committer: miss-islington <31488909+miss-islington(a)users.noreply.github.com> date: 2022-01-28T15:02:54-08:00 summary: bpo-43112: detect musl as a separate SOABI (GH-24502) musl libc and gnu libc are not ABI compatible so we need set different SOABI for musl and not simply assume that all linux is linux-gnu. Replace linux-gnu with the detected os for the build from config.guess for linux-musl*. files: A Misc/NEWS.d/next/Build/2021-02-10-17-54-04.bpo-43112.H5Lat6.rst M Lib/test/test_sysconfig.py M configure M configure.ac diff --git a/Lib/test/test_sysconfig.py b/Lib/test/test_sysconfig.py index 80fe9c8a8b1e0..7ba004d77315d 100644 --- a/Lib/test/test_sysconfig.py +++ b/Lib/test/test_sysconfig.py @@ -433,11 +433,11 @@ def test_triplet_in_ext_suffix(self): self.assertTrue('linux' in suffix, suffix) if re.match('(i[3-6]86|x86_64)$', machine): if ctypes.sizeof(ctypes.c_char_p()) == 4: - self.assertTrue(suffix.endswith('i386-linux-gnu.so') or - suffix.endswith('x86_64-linux-gnux32.so'), - suffix) + expected_suffixes = 'i386-linux-gnu.so', 'x86_64-linux-gnux32.so', 'i386-linux-musl.so' else: # 8 byte pointer size - self.assertTrue(suffix.endswith('x86_64-linux-gnu.so'), suffix) + expected_suffixes = 'x86_64-linux-gnu.so', 'x86_64-linux-musl.so' + self.assertTrue(suffix.endswith(expected_suffixes), + f'unexpected suffix {suffix!r}') @unittest.skipUnless(sys.platform == 'darwin', 'OS X-specific test') def test_osx_ext_suffix(self): diff --git a/Misc/NEWS.d/next/Build/2021-02-10-17-54-04.bpo-43112.H5Lat6.rst b/Misc/NEWS.d/next/Build/2021-02-10-17-54-04.bpo-43112.H5Lat6.rst new file mode 100644 index 0000000000000..0e250edfa3ec1 --- /dev/null +++ b/Misc/NEWS.d/next/Build/2021-02-10-17-54-04.bpo-43112.H5Lat6.rst @@ -0,0 +1 @@ +Detect musl libc as a separate SOABI (tagged as ``linux-musl``). \ No newline at end of file diff --git a/configure b/configure index 22c65e492fbab..da4af32cc17aa 100755 --- a/configure +++ b/configure @@ -6090,6 +6090,11 @@ EOF if $CPP $CPPFLAGS conftest.c >conftest.out 2>/dev/null; then PLATFORM_TRIPLET=`grep -v '^#' conftest.out | grep -v '^ *$' | tr -d ' '` + case "$build_os" in + linux-musl*) + PLATFORM_TRIPLET=`echo "$PLATFORM_TRIPLET" | sed 's/linux-gnu/linux-musl/'` + ;; + esac { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PLATFORM_TRIPLET" >&5 $as_echo "$PLATFORM_TRIPLET" >&6; } else diff --git a/configure.ac b/configure.ac index 9bc6e3beecbcc..5a076646b96dd 100644 --- a/configure.ac +++ b/configure.ac @@ -981,6 +981,11 @@ EOF if $CPP $CPPFLAGS conftest.c >conftest.out 2>/dev/null; then PLATFORM_TRIPLET=`grep -v '^#' conftest.out | grep -v '^ *$' | tr -d ' '` + case "$build_os" in + linux-musl*) + PLATFORM_TRIPLET=`echo "$PLATFORM_TRIPLET" | sed 's/linux-gnu/linux-musl/'` + ;; + esac AC_MSG_RESULT([$PLATFORM_TRIPLET]) else AC_MSG_RESULT([none])

1 0

bpo-26552: Fixed case where failing `asyncio.ensure_future` did not close the coroutine (#30288)
by gvanrossum Jan. 28, 2022

Jan. 28, 2022

https://github.com/python/cpython/commit/24cc6411adbfe5555ecd8901f1ea50caa4… commit: 24cc6411adbfe5555ecd8901f1ea50caa414c908 branch: main author: Kumar Aditya <59607654+kumaraditya303(a)users.noreply.github.com> committer: gvanrossum <gvanrossum(a)gmail.com> date: 2022-01-28T14:24:35-08:00 summary: bpo-26552: Fixed case where failing `asyncio.ensure_future` did not close the coroutine (#30288) files: A Misc/NEWS.d/next/Library/2021-12-29-13-42-55.bpo-26552.1BqeAn.rst M Lib/asyncio/tasks.py M Lib/test/test_asyncio/test_base_events.py diff --git a/Lib/asyncio/tasks.py b/Lib/asyncio/tasks.py index 445a9f51226ed..2bee5c050ded7 100644 --- a/Lib/asyncio/tasks.py +++ b/Lib/asyncio/tasks.py @@ -621,17 +621,23 @@ def _ensure_future(coro_or_future, *, loop=None): raise ValueError('The future belongs to a different loop than ' 'the one specified as the loop argument') return coro_or_future - + called_wrap_awaitable = False if not coroutines.iscoroutine(coro_or_future): if inspect.isawaitable(coro_or_future): coro_or_future = _wrap_awaitable(coro_or_future) + called_wrap_awaitable = True else: raise TypeError('An asyncio.Future, a coroutine or an awaitable ' 'is required') if loop is None: loop = events._get_event_loop(stacklevel=4) - return loop.create_task(coro_or_future) + try: + return loop.create_task(coro_or_future) + except RuntimeError: + if not called_wrap_awaitable: + coro_or_future.close() + raise @types.coroutine diff --git a/Lib/test/test_asyncio/test_base_events.py b/Lib/test/test_asyncio/test_base_events.py index 17e8396cfe2ef..c64e1623a0395 100644 --- a/Lib/test/test_asyncio/test_base_events.py +++ b/Lib/test/test_asyncio/test_base_events.py @@ -18,7 +18,7 @@ from test.support.script_helper import assert_python_ok from test.support import os_helper from test.support import socket_helper - +import warnings MOCK_ANY = mock.ANY @@ -796,6 +796,17 @@ def create_task(self, coro): task._log_destroy_pending = False coro.close() + def test_create_task_error_closes_coro(self): + async def test(): + pass + loop = asyncio.new_event_loop() + loop.close() + with warnings.catch_warnings(record=True) as w: + with self.assertRaises(RuntimeError): + asyncio.ensure_future(test(), loop=loop) + self.assertEqual(len(w), 0) + + def test_create_named_task_with_default_factory(self): async def test(): pass diff --git a/Misc/NEWS.d/next/Library/2021-12-29-13-42-55.bpo-26552.1BqeAn.rst b/Misc/NEWS.d/next/Library/2021-12-29-13-42-55.bpo-26552.1BqeAn.rst new file mode 100644 index 0000000000000..85b6a64ef53d1 --- /dev/null +++ b/Misc/NEWS.d/next/Library/2021-12-29-13-42-55.bpo-26552.1BqeAn.rst @@ -0,0 +1 @@ +Fixed case where failing :func:`asyncio.ensure_future` did not close the coroutine. Patch by Kumar Aditya. \ No newline at end of file

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