Mailman 3 June 2024 - Python-checkins

gh-121018: Fix more cases of exiting in argparse when exit_on_error=False (GH-121056)
by serhiy-storchaka 28 Jun '24

28 Jun '24

https://github.com/python/cpython/commit/81a654a3425eaa05a51342509089533c1f… commit: 81a654a3425eaa05a51342509089533c1f623f1b branch: main author: Serhiy Storchaka <storchaka(a)gmail.com> committer: serhiy-storchaka <storchaka(a)gmail.com> date: 2024-06-28T17:21:59+03:00 summary: gh-121018: Fix more cases of exiting in argparse when exit_on_error=False (GH-121056) * parse_intermixed_args() now raises ArgumentError instead of calling error() if exit_on_error is false. * Internal code now always raises ArgumentError instead of calling error(). It is then caught at the higher level and error() is called if exit_on_error is true. files: M Lib/argparse.py M Lib/test/test_argparse.py M Misc/NEWS.d/next/Library/2024-06-26-03-04-24.gh-issue-121018.clVSc4.rst diff --git a/Lib/argparse.py b/Lib/argparse.py index f1c3808869aab3..83189115bf85f7 100644 --- a/Lib/argparse.py +++ b/Lib/argparse.py @@ -1791,7 +1791,7 @@ def _get_kwargs(self): # ================================== def add_subparsers(self, **kwargs): if self._subparsers is not None: - self.error(_('cannot have multiple subparser arguments')) + raise ArgumentError(None, _('cannot have multiple subparser arguments')) # add the parser class to the arguments if it's not present kwargs.setdefault('parser_class', type(self)) @@ -1846,7 +1846,8 @@ def parse_args(self, args=None, namespace=None): msg = _('unrecognized arguments: %s') % ' '.join(argv) if self.exit_on_error: self.error(msg) - raise ArgumentError(None, msg) + else: + raise ArgumentError(None, msg) return args def parse_known_args(self, args=None, namespace=None): @@ -2135,7 +2136,7 @@ def consume_positionals(start_index): self._get_value(action, action.default)) if required_actions: - self.error(_('the following arguments are required: %s') % + raise ArgumentError(None, _('the following arguments are required: %s') % ', '.join(required_actions)) # make sure all required groups had one option present @@ -2151,7 +2152,7 @@ def consume_positionals(start_index): for action in group._group_actions if action.help is not SUPPRESS] msg = _('one of the arguments %s is required') - self.error(msg % ' '.join(names)) + raise ArgumentError(None, msg % ' '.join(names)) # return the updated namespace and the extra arguments return namespace, extras @@ -2178,7 +2179,7 @@ def _read_args_from_files(self, arg_strings): arg_strings = self._read_args_from_files(arg_strings) new_arg_strings.extend(arg_strings) except OSError as err: - self.error(str(err)) + raise ArgumentError(None, str(err)) # return the modified argument list return new_arg_strings @@ -2258,7 +2259,7 @@ def _parse_optional(self, arg_string): for action, option_string, sep, explicit_arg in option_tuples]) args = {'option': arg_string, 'matches': options} msg = _('ambiguous option: %(option)s could match %(matches)s') - self.error(msg % args) + raise ArgumentError(None, msg % args) # if exactly one action matched, this segmentation is good, # so return the parsed action @@ -2318,7 +2319,7 @@ def _get_option_tuples(self, option_string): # shouldn't ever get here else: - self.error(_('unexpected option string: %s') % option_string) + raise ArgumentError(None, _('unexpected option string: %s') % option_string) # return the collected option tuples return result @@ -2375,8 +2376,11 @@ def _get_nargs_pattern(self, action): def parse_intermixed_args(self, args=None, namespace=None): args, argv = self.parse_known_intermixed_args(args, namespace) if argv: - msg = _('unrecognized arguments: %s') - self.error(msg % ' '.join(argv)) + msg = _('unrecognized arguments: %s') % ' '.join(argv) + if self.exit_on_error: + self.error(msg) + else: + raise ArgumentError(None, msg) return args def parse_known_intermixed_args(self, args=None, namespace=None): diff --git a/Lib/test/test_argparse.py b/Lib/test/test_argparse.py index 11eb081f45701e..84fe74a1063fb6 100644 --- a/Lib/test/test_argparse.py +++ b/Lib/test/test_argparse.py @@ -2147,7 +2147,9 @@ def _get_parser(self, subparser_help=False, prefix_chars=None, else: subparsers_kwargs['help'] = 'command help' subparsers = parser.add_subparsers(**subparsers_kwargs) - self.assertArgumentParserError(parser.add_subparsers) + self.assertRaisesRegex(argparse.ArgumentError, + 'cannot have multiple subparser arguments', + parser.add_subparsers) # add first sub-parser parser1_kwargs = dict(description='1 description') @@ -6042,7 +6044,8 @@ def test_help_with_metavar(self): class TestExitOnError(TestCase): def setUp(self): - self.parser = argparse.ArgumentParser(exit_on_error=False) + self.parser = argparse.ArgumentParser(exit_on_error=False, + fromfile_prefix_chars='@') self.parser.add_argument('--integers', metavar='N', type=int) def test_exit_on_error_with_good_args(self): @@ -6053,9 +6056,44 @@ def test_exit_on_error_with_bad_args(self): with self.assertRaises(argparse.ArgumentError): self.parser.parse_args('--integers a'.split()) - def test_exit_on_error_with_unrecognized_args(self): - with self.assertRaises(argparse.ArgumentError): - self.parser.parse_args('--foo bar'.split()) + def test_unrecognized_args(self): + self.assertRaisesRegex(argparse.ArgumentError, + 'unrecognized arguments: --foo bar', + self.parser.parse_args, '--foo bar'.split()) + + def test_unrecognized_intermixed_args(self): + self.assertRaisesRegex(argparse.ArgumentError, + 'unrecognized arguments: --foo bar', + self.parser.parse_intermixed_args, '--foo bar'.split()) + + def test_required_args(self): + self.parser.add_argument('bar') + self.parser.add_argument('baz') + self.assertRaisesRegex(argparse.ArgumentError, + 'the following arguments are required: bar, baz', + self.parser.parse_args, []) + + def test_required_mutually_exclusive_args(self): + group = self.parser.add_mutually_exclusive_group(required=True) + group.add_argument('--bar') + group.add_argument('--baz') + self.assertRaisesRegex(argparse.ArgumentError, + 'one of the arguments --bar --baz is required', + self.parser.parse_args, []) + + def test_ambiguous_option(self): + self.parser.add_argument('--foobaz') + self.parser.add_argument('--fooble', action='store_true') + self.assertRaisesRegex(argparse.ArgumentError, + "ambiguous option: --foob could match --foobaz, --fooble", + self.parser.parse_args, ['--foob']) + + def test_os_error(self): + self.parser.add_argument('file') + self.assertRaisesRegex(argparse.ArgumentError, + "No such file or directory: 'no-such-file'", + self.parser.parse_args, ['@no-such-file']) + def tearDownModule(): # Remove global references to avoid looking like we have refleaks. diff --git a/Misc/NEWS.d/next/Library/2024-06-26-03-04-24.gh-issue-121018.clVSc4.rst b/Misc/NEWS.d/next/Library/2024-06-26-03-04-24.gh-issue-121018.clVSc4.rst index f311077d6bfc41..eac5bab3e9fe6d 100644 --- a/Misc/NEWS.d/next/Library/2024-06-26-03-04-24.gh-issue-121018.clVSc4.rst +++ b/Misc/NEWS.d/next/Library/2024-06-26-03-04-24.gh-issue-121018.clVSc4.rst @@ -1,2 +1,3 @@ -Fixed an issue where :func:`argparse.ArgumentParser.parses_args` did not honor ``exit_on_error=False`` when given unrecognized arguments. -Patch by Ben Hsing +Fixed issues where :meth:`!argparse.ArgumentParser.parses_args` did not honor +``exit_on_error=False``. +Based on patch by Ben Hsing.

1 0

Check for compiler warnings in test_cext on Windows (#121088)
by vstinner 28 Jun '24

28 Jun '24

https://github.com/python/cpython/commit/43709d5d5424725ec061de2c12c3761aff… commit: 43709d5d5424725ec061de2c12c3761affde69ef branch: main author: Victor Stinner <vstinner(a)python.org> committer: vstinner <vstinner(a)python.org> date: 2024-06-28T14:41:37+02:00 summary: Check for compiler warnings in test_cext on Windows (#121088) On Windows, test_cext and test_cppext now pass /WX flag to the MSC compiler to treat all compiler warnings as errors. In verbose mode, these tests now log the compiler commands to help debugging. Change Py_BUILD_ASSERT_EXPR implementation on Windows to avoid a compiler warning about an unnamed structure. files: M Include/pymacro.h M Lib/test/test_cext/__init__.py M Lib/test/test_cext/setup.py M Lib/test/test_cppext/__init__.py M Lib/test/test_cppext/setup.py diff --git a/Include/pymacro.h b/Include/pymacro.h index b388c2a4a663ce..a7945ef84a46fc 100644 --- a/Include/pymacro.h +++ b/Include/pymacro.h @@ -46,7 +46,8 @@ /* Argument must be a char or an int in [-128, 127] or [0, 255]. */ #define Py_CHARMASK(c) ((unsigned char)((c) & 0xff)) -#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L +#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L \ + && !defined(_MSC_VER)) # define Py_BUILD_ASSERT_EXPR(cond) \ ((void)sizeof(struct { int dummy; _Static_assert(cond, #cond); }), \ 0) diff --git a/Lib/test/test_cext/__init__.py b/Lib/test/test_cext/__init__.py index ec44b0ce1f8a56..54859f9ff7622d 100644 --- a/Lib/test/test_cext/__init__.py +++ b/Lib/test/test_cext/__init__.py @@ -86,6 +86,8 @@ def run_cmd(operation, cmd): cmd = [python_exe, '-X', 'dev', '-m', 'pip', 'install', '--no-build-isolation', os.path.abspath(pkg_dir)] + if support.verbose: + cmd.append('-v') run_cmd('Install', cmd) # Do a reference run. Until we test that running python diff --git a/Lib/test/test_cext/setup.py b/Lib/test/test_cext/setup.py index 383d256c1eb53b..19edc5e663c55d 100644 --- a/Lib/test/test_cext/setup.py +++ b/Lib/test/test_cext/setup.py @@ -11,6 +11,7 @@ SOURCE = 'extension.c' + if not support.MS_WINDOWS: # C compiler flags for GCC and clang CFLAGS = [ @@ -28,8 +29,11 @@ '-Werror=declaration-after-statement', ) else: - # Don't pass any compiler flag to MSVC - CFLAGS = [] + # MSVC compiler flags + CFLAGS = [ + # Treat all compiler warnings as compiler errors + '/WX', + ] def main(): diff --git a/Lib/test/test_cppext/__init__.py b/Lib/test/test_cppext/__init__.py index 00a2840d49c779..efd79448c66104 100644 --- a/Lib/test/test_cppext/__init__.py +++ b/Lib/test/test_cppext/__init__.py @@ -76,6 +76,8 @@ def run_cmd(operation, cmd): cmd = [python_exe, '-X', 'dev', '-m', 'pip', 'install', '--no-build-isolation', os.path.abspath(pkg_dir)] + if support.verbose: + cmd.append('-v') run_cmd('Install', cmd) # Do a reference run. Until we test that running python diff --git a/Lib/test/test_cppext/setup.py b/Lib/test/test_cppext/setup.py index 80b3e0d5212f7b..f1848f2fd42a46 100644 --- a/Lib/test/test_cppext/setup.py +++ b/Lib/test/test_cppext/setup.py @@ -10,6 +10,7 @@ SOURCE = 'extension.cpp' + if not support.MS_WINDOWS: # C++ compiler flags for GCC and clang CPPFLAGS = [ @@ -19,8 +20,11 @@ '-Werror', ] else: - # Don't pass any compiler flag to MSVC - CPPFLAGS = [] + # MSVC compiler flags + CPPFLAGS = [ + # Treat all compiler warnings as compiler errors + '/WX', + ] def main():

1 0

gh-120804: remove `is_active` method from internal child watchers implementation in asyncio (#121124)
by kumaraditya303 28 Jun '24

28 Jun '24

https://github.com/python/cpython/commit/ef3c400434eab53e358ebfa5da0411fab7… commit: ef3c400434eab53e358ebfa5da0411fab722cafb branch: main author: Kumar Aditya <kumaraditya(a)python.org> committer: kumaraditya303 <kumaraditya(a)python.org> date: 2024-06-28T17:23:56+05:30 summary: gh-120804: remove `is_active` method from internal child watchers implementation in asyncio (#121124) files: M Lib/asyncio/unix_events.py diff --git a/Lib/asyncio/unix_events.py b/Lib/asyncio/unix_events.py index c22d0777b0b3be..2796e397c0e84d 100644 --- a/Lib/asyncio/unix_events.py +++ b/Lib/asyncio/unix_events.py @@ -867,9 +867,6 @@ class _PidfdChildWatcher: recent (5.3+) kernels. """ - def is_active(self): - return True - def add_child_handler(self, pid, callback, *args): loop = events.get_running_loop() pidfd = os.pidfd_open(pid) @@ -911,9 +908,6 @@ def __init__(self): self._pid_counter = itertools.count(0) self._threads = {} - def is_active(self): - return True - def __del__(self, _warn=warnings.warn): threads = [thread for thread in list(self._threads.values()) if thread.is_alive()]

1 0

[3.13] gh-121096: Ignore dlopen() leaks in Valgrind suppression file (GH-121097) (#121122)
by vstinner 28 Jun '24

28 Jun '24

https://github.com/python/cpython/commit/497047606d6349b0596a53c6db1a1616ef… commit: 497047606d6349b0596a53c6db1a1616ef0f0d80 branch: 3.13 author: Miss Islington (bot) <31488909+miss-islington(a)users.noreply.github.com> committer: vstinner <vstinner(a)python.org> date: 2024-06-28T11:26:37Z summary: [3.13] gh-121096: Ignore dlopen() leaks in Valgrind suppression file (GH-121097) (#121122) gh-121096: Ignore dlopen() leaks in Valgrind suppression file (GH-121097) (cherry picked from commit 6e63d84e43fdce3a5bdb899b024cf947d4e48900) Co-authored-by: Victor Stinner <vstinner(a)python.org> files: M Misc/valgrind-python.supp diff --git a/Misc/valgrind-python.supp b/Misc/valgrind-python.supp index 29954c1bbad350..8b2027cd452767 100644 --- a/Misc/valgrind-python.supp +++ b/Misc/valgrind-python.supp @@ -95,6 +95,49 @@ fun:COMMENT_THIS_LINE_TO_DISABLE_LEAK_WARNING } +# +# Leaks: dlopen() called without dlclose() +# + +{ + dlopen() called without dlclose() + Memcheck:Leak + fun:malloc + fun:malloc + fun:strdup + fun:_dl_load_cache_lookup +} +{ + dlopen() called without dlclose() + Memcheck:Leak + fun:malloc + fun:malloc + fun:strdup + fun:_dl_map_object +} +{ + dlopen() called without dlclose() + Memcheck:Leak + fun:malloc + fun:* + fun:_dl_new_object +} +{ + dlopen() called without dlclose() + Memcheck:Leak + fun:calloc + fun:* + fun:_dl_new_object +} +{ + dlopen() called without dlclose() + Memcheck:Leak + fun:calloc + fun:* + fun:_dl_check_map_versions +} + + # # Non-python specific leaks #

1 0

[3.12] gh-121096: Ignore dlopen() leaks in Valgrind suppression file (GH-121097) (#121123)
by vstinner 28 Jun '24

28 Jun '24

https://github.com/python/cpython/commit/21a63b9c4c16269ea90326968ef0f60ff7… commit: 21a63b9c4c16269ea90326968ef0f60ff7f026cf branch: 3.12 author: Miss Islington (bot) <31488909+miss-islington(a)users.noreply.github.com> committer: vstinner <vstinner(a)python.org> date: 2024-06-28T11:17:30Z summary: [3.12] gh-121096: Ignore dlopen() leaks in Valgrind suppression file (GH-121097) (#121123) gh-121096: Ignore dlopen() leaks in Valgrind suppression file (GH-121097) (cherry picked from commit 6e63d84e43fdce3a5bdb899b024cf947d4e48900) Co-authored-by: Victor Stinner <vstinner(a)python.org> files: M Misc/valgrind-python.supp diff --git a/Misc/valgrind-python.supp b/Misc/valgrind-python.supp index c9c45ba7ed6de4..f5e39d6f2ecbe0 100644 --- a/Misc/valgrind-python.supp +++ b/Misc/valgrind-python.supp @@ -103,6 +103,49 @@ fun:COMMENT_THIS_LINE_TO_DISABLE_LEAK_WARNING } +# +# Leaks: dlopen() called without dlclose() +# + +{ + dlopen() called without dlclose() + Memcheck:Leak + fun:malloc + fun:malloc + fun:strdup + fun:_dl_load_cache_lookup +} +{ + dlopen() called without dlclose() + Memcheck:Leak + fun:malloc + fun:malloc + fun:strdup + fun:_dl_map_object +} +{ + dlopen() called without dlclose() + Memcheck:Leak + fun:malloc + fun:* + fun:_dl_new_object +} +{ + dlopen() called without dlclose() + Memcheck:Leak + fun:calloc + fun:* + fun:_dl_new_object +} +{ + dlopen() called without dlclose() + Memcheck:Leak + fun:calloc + fun:* + fun:_dl_check_map_versions +} + + # # Non-python specific leaks #

1 0

gh-121096: Ignore dlopen() leaks in Valgrind suppression file (#121097)
by vstinner 28 Jun '24

28 Jun '24

https://github.com/python/cpython/commit/6e63d84e43fdce3a5bdb899b024cf947d4… commit: 6e63d84e43fdce3a5bdb899b024cf947d4e48900 branch: main author: Victor Stinner <vstinner(a)python.org> committer: vstinner <vstinner(a)python.org> date: 2024-06-28T13:10:11+02:00 summary: gh-121096: Ignore dlopen() leaks in Valgrind suppression file (#121097) files: M Misc/valgrind-python.supp diff --git a/Misc/valgrind-python.supp b/Misc/valgrind-python.supp index 29954c1bbad350..8b2027cd452767 100644 --- a/Misc/valgrind-python.supp +++ b/Misc/valgrind-python.supp @@ -95,6 +95,49 @@ fun:COMMENT_THIS_LINE_TO_DISABLE_LEAK_WARNING } +# +# Leaks: dlopen() called without dlclose() +# + +{ + dlopen() called without dlclose() + Memcheck:Leak + fun:malloc + fun:malloc + fun:strdup + fun:_dl_load_cache_lookup +} +{ + dlopen() called without dlclose() + Memcheck:Leak + fun:malloc + fun:malloc + fun:strdup + fun:_dl_map_object +} +{ + dlopen() called without dlclose() + Memcheck:Leak + fun:malloc + fun:* + fun:_dl_new_object +} +{ + dlopen() called without dlclose() + Memcheck:Leak + fun:calloc + fun:* + fun:_dl_new_object +} +{ + dlopen() called without dlclose() + Memcheck:Leak + fun:calloc + fun:* + fun:_dl_check_map_versions +} + + # # Non-python specific leaks #

1 0

[3.13] gh-105623 Fix performance degradation in logging RotatingFileHandler (GH-105887) (GH-121117)
by serhiy-storchaka 28 Jun '24

28 Jun '24

https://github.com/python/cpython/commit/e310d2bd71b72ad050e20a3da30636e097… commit: e310d2bd71b72ad050e20a3da30636e0970a6fc2 branch: 3.13 author: Miss Islington (bot) <31488909+miss-islington(a)users.noreply.github.com> committer: serhiy-storchaka <storchaka(a)gmail.com> date: 2024-06-28T09:23:38Z summary: [3.13] gh-105623 Fix performance degradation in logging RotatingFileHandler (GH-105887) (GH-121117) The check for whether the log file is a real file is expensive on NFS filesystems. This commit reorders the rollover condition checking to not do the file type check if the expected file size is less than the rotation threshold. (cherry picked from commit e9b4ec614b66d11623b80471409c16a109f888d5) Co-authored-by: Craig Robson <craig(a)zhatt.com> Co-authored-by: Oleg Iarygin <oleg(a)arhadthedev.net> files: A Misc/NEWS.d/next/Library/2023-06-17-09-07-06.gh-issue-105623.5G06od.rst M Lib/logging/handlers.py diff --git a/Lib/logging/handlers.py b/Lib/logging/handlers.py index 410bd9851f366d..0fa40f56e998d5 100644 --- a/Lib/logging/handlers.py +++ b/Lib/logging/handlers.py @@ -193,15 +193,15 @@ def shouldRollover(self, record): Basically, see if the supplied record would cause the file to exceed the size limit we have. """ - # See bpo-45401: Never rollover anything other than regular files - if os.path.exists(self.baseFilename) and not os.path.isfile(self.baseFilename): - return False if self.stream is None: # delay was set... self.stream = self._open() if self.maxBytes > 0: # are we rolling over? msg = "%s\n" % self.format(record) self.stream.seek(0, 2) #due to non-posix-compliant Windows feature if self.stream.tell() + len(msg) >= self.maxBytes: + # See bpo-45401: Never rollover anything other than regular files + if os.path.exists(self.baseFilename) and not os.path.isfile(self.baseFilename): + return False return True return False diff --git a/Misc/NEWS.d/next/Library/2023-06-17-09-07-06.gh-issue-105623.5G06od.rst b/Misc/NEWS.d/next/Library/2023-06-17-09-07-06.gh-issue-105623.5G06od.rst new file mode 100644 index 00000000000000..2890674aac4bbc --- /dev/null +++ b/Misc/NEWS.d/next/Library/2023-06-17-09-07-06.gh-issue-105623.5G06od.rst @@ -0,0 +1,2 @@ +Fix performance degradation in +:class:`logging.handlers.RotatingFileHandler`. Patch by Craig Robson.

1 0

[3.12] gh-105623 Fix performance degradation in logging RotatingFileHandler (GH-105887) (GH-121116)
by serhiy-storchaka 28 Jun '24

28 Jun '24

https://github.com/python/cpython/commit/2a68ed986e9d19dff5d09713a5a225879a… commit: 2a68ed986e9d19dff5d09713a5a225879acba3cb branch: 3.12 author: Miss Islington (bot) <31488909+miss-islington(a)users.noreply.github.com> committer: serhiy-storchaka <storchaka(a)gmail.com> date: 2024-06-28T09:09:38Z summary: [3.12] gh-105623 Fix performance degradation in logging RotatingFileHandler (GH-105887) (GH-121116) The check for whether the log file is a real file is expensive on NFS filesystems. This commit reorders the rollover condition checking to not do the file type check if the expected file size is less than the rotation threshold. (cherry picked from commit e9b4ec614b66d11623b80471409c16a109f888d5) Co-authored-by: Craig Robson <craig(a)zhatt.com> Co-authored-by: Oleg Iarygin <oleg(a)arhadthedev.net> files: A Misc/NEWS.d/next/Library/2023-06-17-09-07-06.gh-issue-105623.5G06od.rst M Lib/logging/handlers.py diff --git a/Lib/logging/handlers.py b/Lib/logging/handlers.py index 1ae6bb844349ae..715bce785c11f9 100644 --- a/Lib/logging/handlers.py +++ b/Lib/logging/handlers.py @@ -187,15 +187,15 @@ def shouldRollover(self, record): Basically, see if the supplied record would cause the file to exceed the size limit we have. """ - # See bpo-45401: Never rollover anything other than regular files - if os.path.exists(self.baseFilename) and not os.path.isfile(self.baseFilename): - return False if self.stream is None: # delay was set... self.stream = self._open() if self.maxBytes > 0: # are we rolling over? msg = "%s\n" % self.format(record) self.stream.seek(0, 2) #due to non-posix-compliant Windows feature if self.stream.tell() + len(msg) >= self.maxBytes: + # See bpo-45401: Never rollover anything other than regular files + if os.path.exists(self.baseFilename) and not os.path.isfile(self.baseFilename): + return False return True return False diff --git a/Misc/NEWS.d/next/Library/2023-06-17-09-07-06.gh-issue-105623.5G06od.rst b/Misc/NEWS.d/next/Library/2023-06-17-09-07-06.gh-issue-105623.5G06od.rst new file mode 100644 index 00000000000000..2890674aac4bbc --- /dev/null +++ b/Misc/NEWS.d/next/Library/2023-06-17-09-07-06.gh-issue-105623.5G06od.rst @@ -0,0 +1,2 @@ +Fix performance degradation in +:class:`logging.handlers.RotatingFileHandler`. Patch by Craig Robson.

1 0

gh-107803: add whatsnew for asyncio double linked list implementation (#120995)
by kumaraditya303 28 Jun '24

28 Jun '24

https://github.com/python/cpython/commit/58a3580836eca58c4a0c02cedc8a8d6080… commit: 58a3580836eca58c4a0c02cedc8a8d6080b8ab59 branch: main author: Kumar Aditya <kumaraditya(a)python.org> committer: kumaraditya303 <kumaraditya(a)python.org> date: 2024-06-28T14:33:31+05:30 summary: gh-107803: add whatsnew for asyncio double linked list implementation (#120995) files: M Doc/whatsnew/3.14.rst diff --git a/Doc/whatsnew/3.14.rst b/Doc/whatsnew/3.14.rst index 9662044915b8ca..ee3001661b3143 100644 --- a/Doc/whatsnew/3.14.rst +++ b/Doc/whatsnew/3.14.rst @@ -125,6 +125,14 @@ symtable Optimizations ============= +asyncio +------- + +* :mod:`asyncio` now uses double linked list implementation for native tasks + which speeds up execution by 10% on standard pyperformance benchmarks and + reduces memory usage. + (Contributed by Kumar Aditya in :gh:`107803`.) +

1 0