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137be34180
Having multiple paragraphs in a few news entry lead to inconsistent spacing while rendered in HTML by mixing "visually compact lists" (when no entry of the whole list contains multiple paragraphs) and "sparse lists" (when at least one do).
847 lines
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847 lines
17 KiB
ReStructuredText
.. bpo: 31975
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.. date: 2018-01-05-20-54-27
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.. nonce: AmftlU
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.. release date: 2018-01-08
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.. section: Core and Builtins
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The default warning filter list now starts with a
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"default::DeprecationWarning:__main__" entry, so deprecation warnings are
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once again shown by default in single-file scripts and at the interactive
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prompt.
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..
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.. bpo: 32226
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.. date: 2018-01-04-15-06-15
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.. nonce: 7cAvRG
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.. section: Core and Builtins
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``__class_getitem__`` is now an automatic class method.
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..
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.. bpo: 32399
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.. date: 2017-12-22-13-38-17
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.. nonce: wlH12z
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.. section: Core and Builtins
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Add AIX uuid library support for RFC4122 using uuid_create() in libc.a
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..
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.. bpo: 32390
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.. date: 2017-12-22-13-28-07
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.. nonce: QPj083
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.. section: Core and Builtins
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Fix the compilation failure on AIX after the f_fsid field has been added to
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the object returned by os.statvfs() (issue #32143). Original patch by
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Michael Felt.
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..
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.. bpo: 32379
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.. date: 2017-12-19-21-14-41
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.. nonce: B7mOmI
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.. section: Core and Builtins
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Make MRO computation faster when a class inherits from a single base.
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..
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.. bpo: 32259
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.. date: 2017-12-16-14-30-21
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.. nonce: GoOJiX
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.. section: Core and Builtins
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The error message of a TypeError raised when unpack non-iterable is now more
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specific.
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..
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.. bpo: 27169
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.. date: 2017-12-15-11-50-06
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.. nonce: VO84fQ
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.. section: Core and Builtins
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The ``__debug__`` constant is now optimized out at compile time. This fixes
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also bpo-22091.
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..
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.. bpo: 32329
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.. date: 2017-12-15-00-13-04
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.. nonce: q47IN2
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.. section: Core and Builtins
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The :option:`-R` option now turns on hash randomization when the
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:envvar:`PYTHONHASHSEED` environment variable is set to ``0``. Previously,
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the option was ignored. Moreover, ``sys.flags.hash_randomization`` is now
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properly set to 0 when hash randomization is turned off by
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``PYTHONHASHSEED=0``.
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..
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.. bpo: 30416
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.. date: 2017-12-14-11-48-19
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.. nonce: hlHo_9
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.. section: Core and Builtins
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The optimizer is now protected from spending much time doing complex
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calculations and consuming much memory for creating large constants in
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constant folding. Increased limits for constants that can be produced in
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constant folding.
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..
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.. bpo: 32282
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.. date: 2017-12-12-14-02-28
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.. nonce: xFVMTn
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.. section: Core and Builtins
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Fix an unnecessary ifdef in the include of VersionHelpers.h in socketmodule
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on Windows.
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..
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.. bpo: 30579
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.. date: 2017-12-11-01-52-42
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.. nonce: X6cEzf
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.. section: Core and Builtins
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Implement TracebackType.__new__ to allow Python-level creation of traceback
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objects, and make TracebackType.tb_next mutable.
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..
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.. bpo: 32260
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.. date: 2017-12-09-11-03-51
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.. nonce: 1DAO-p
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.. section: Core and Builtins
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Don't byte swap the input keys to the SipHash algorithm on big-endian
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platforms. This should ensure siphash gives consistent results across
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platforms.
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..
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.. bpo: 31506
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.. date: 2017-12-07-23-44-29
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.. nonce: j1U2fU
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.. section: Core and Builtins
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Improve the error message logic for object.__new__ and object.__init__.
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Patch by Sanyam Khurana.
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..
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.. bpo: 20361
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.. date: 2017-12-07-17-22-30
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.. nonce: zQUmbi
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.. section: Core and Builtins
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``-b`` and ``-bb`` now inject ``'default::BytesWarning'`` and
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``error::BytesWarning`` entries into ``sys.warnoptions``, ensuring that they
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take precedence over any other warning filters configured via the ``-W``
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option or the ``PYTHONWARNINGS`` environment variable.
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..
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.. bpo: 32230
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.. date: 2017-12-06-20-18-34
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.. nonce: PgGQaB
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.. section: Core and Builtins
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`-X dev` now injects a ``'default'`` entry into sys.warnoptions, ensuring
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that it behaves identically to actually passing ``-Wdefault`` at the command
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line.
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..
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.. bpo: 29240
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.. date: 2017-12-05-23-10-58
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.. nonce: qpJP5l
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.. section: Core and Builtins
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Add a new UTF-8 mode: implementation of the :pep:`540`.
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..
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.. bpo: 32226
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.. date: 2017-12-05-21-42-58
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.. nonce: G8fqb6
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.. section: Core and Builtins
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:pep:`560`: Add support for ``__mro_entries__`` and ``__class_getitem__``. Implemented
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by Ivan Levkivskyi.
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..
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.. bpo: 32225
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.. date: 2017-12-05-21-33-47
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.. nonce: ucKjvw
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.. section: Core and Builtins
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:pep:`562`: Add support for module ``__getattr__`` and ``__dir__``. Implemented
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by Ivan Levkivskyi.
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..
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.. bpo: 31901
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.. date: 2017-11-28-15-04-14
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.. nonce: mDeCLK
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.. section: Core and Builtins
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The `atexit` module now has its callback stored per interpreter.
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..
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.. bpo: 31650
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.. date: 2017-11-26-14-38-44
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.. nonce: JWf_Im
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.. section: Core and Builtins
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Implement :pep:`552` (Deterministic pycs). Python now supports invalidating
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bytecode cache files bashed on a source content hash rather than source
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last-modified time.
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..
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.. bpo: 29469
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.. date: 2017-07-26-00-20-15
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.. nonce: potmyI
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.. section: Core and Builtins
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Move constant folding from bytecode layer to AST layer. Original patch by
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Eugene Toder.
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..
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.. bpo: 32506
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.. date: 2018-01-07-11-32-42
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.. nonce: MaT-zU
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.. section: Library
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Now that dict is defined as keeping insertion order, drop OrderedDict and
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just use plain dict.
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..
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.. bpo: 32279
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.. date: 2018-01-06-16-50-11
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.. nonce: 1xOpU8
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.. section: Library
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Add params to dataclasses.make_dataclasses(): init, repr, eq, order, hash,
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and frozen. Pass them through to dataclass().
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..
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.. bpo: 32278
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.. date: 2018-01-06-15-15-34
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.. nonce: bGnGc0
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.. section: Library
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Make type information optional on dataclasses.make_dataclass(). If omitted,
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the string 'typing.Any' is used.
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..
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.. bpo: 32499
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.. date: 2018-01-06-10-54-16
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.. nonce: koyY-4
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.. section: Library
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Add dataclasses.is_dataclass(obj), which returns True if obj is a dataclass
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or an instance of one.
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..
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.. bpo: 32468
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.. date: 2017-12-31-20-32-58
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.. nonce: YBs__0
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.. section: Library
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Improve frame repr() to mention filename, code name and current line number.
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..
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.. bpo: 23749
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.. date: 2017-12-29-00-44-42
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.. nonce: QL1Cxd
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.. section: Library
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asyncio: Implement loop.start_tls()
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..
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.. bpo: 32441
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.. date: 2017-12-28-21-30-40
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.. nonce: LqlboJ
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.. section: Library
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Return the new file descriptor (i.e., the second argument) from ``os.dup2``.
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Previously, ``None`` was always returned.
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..
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.. bpo: 32422
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.. date: 2017-12-25-20-22-47
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.. nonce: 5H3Wq2
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.. section: Library
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``functools.lru_cache`` uses less memory (3 words for each cached key) and
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takes about 1/3 time for cyclic GC.
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..
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.. bpo: 31721
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.. date: 2017-12-25-11-09-46
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.. nonce: 5gM972
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.. section: Library
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Prevent Python crash from happening when Future._log_traceback is set to
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True manually. Now it can only be set to False, or a ValueError is raised.
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..
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.. bpo: 32415
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.. date: 2017-12-23-12-45-00
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.. nonce: YufXTU
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.. section: Library
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asyncio: Add Task.get_loop() and Future.get_loop()
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..
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.. bpo: 26133
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.. date: 2017-12-21-11-08-42
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.. nonce: mt81QV
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.. section: Library
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Don't unsubscribe signals in asyncio UNIX event loop on interpreter
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shutdown.
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..
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.. bpo: 32363
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.. date: 2017-12-19-00-37-28
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.. nonce: YTeGU0
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.. section: Library
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Make asyncio.Task.set_exception() and set_result() raise
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NotImplementedError. Task._step() and Future.__await__() raise proper
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exceptions when they are in an invalid state, instead of raising an
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AssertionError.
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..
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.. bpo: 32357
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.. date: 2017-12-18-00-36-41
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.. nonce: t1F3sn
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.. section: Library
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Optimize asyncio.iscoroutine() and loop.create_task() for non-native
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coroutines (e.g. async/await compiled with Cython).
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'loop.create_task(python_coroutine)' used to be 20% faster than
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'loop.create_task(cython_coroutine)'. Now, the latter is as fast.
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..
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.. bpo: 32356
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.. date: 2017-12-17-22-50-51
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.. nonce: roZJpA
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.. section: Library
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asyncio.transport.resume_reading() and pause_reading() are now idempotent.
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New transport.is_reading() method is added.
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..
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.. bpo: 32355
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.. date: 2017-12-17-21-42-24
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.. nonce: tbaTWA
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.. section: Library
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Optimize asyncio.gather(); now up to 15% faster.
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..
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.. bpo: 32351
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.. date: 2017-12-17-14-23-23
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.. nonce: 95fh2K
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.. section: Library
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Use fastpath in asyncio.sleep if delay<0 (2x boost)
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..
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.. bpo: 32348
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.. date: 2017-12-16-18-50-57
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.. nonce: 5j__he
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.. section: Library
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Optimize asyncio.Future schedule/add/remove callback. The optimization
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shows 3-6% performance improvements of async/await code.
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..
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.. bpo: 32331
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.. date: 2017-12-15-23-48-43
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.. nonce: fIg1Uc
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.. section: Library
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Fix socket.settimeout() and socket.setblocking() to keep socket.type as is.
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Fix socket.socket() constructor to reset any bit flags applied to socket's
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type. This change only affects OSes that have SOCK_NONBLOCK and/or
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SOCK_CLOEXEC.
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..
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.. bpo: 32248
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.. date: 2017-12-15-15-34-12
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.. nonce: zmO8G2
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.. section: Library
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Add :class:`importlib.abc.ResourceReader` as an ABC for loaders to provide a
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unified API for reading resources contained within packages. Also add
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:mod:`importlib.resources` as the port of ``importlib_resources``.
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..
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.. bpo: 32311
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.. date: 2017-12-14-17-28-54
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.. nonce: DL5Ytn
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.. section: Library
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Implement asyncio.create_task(coro) shortcut
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..
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.. bpo: 32327
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.. date: 2017-12-14-16-00-25
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.. nonce: bbkSxA
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.. section: Library
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Convert asyncio functions that were documented as coroutines to coroutines.
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Affected functions: loop.sock_sendall, loop.sock_recv, loop.sock_accept,
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loop.getaddrinfo, loop.getnameinfo.
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..
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.. bpo: 32323
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.. date: 2017-12-14-10-10-10
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.. nonce: ideco
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.. section: Library
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:func:`urllib.parse.urlsplit()` does not convert zone-id (scope) to lower
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case for scoped IPv6 addresses in hostnames now.
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..
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.. bpo: 32302
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.. date: 2017-12-13-22-38-08
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.. nonce: othtTr
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.. section: Library
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Fix bdist_wininst of distutils for CRT v142: it binary compatible with CRT
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v140.
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..
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.. bpo: 29711
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.. date: 2017-12-13-22-10-36
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.. nonce: hJjghA
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.. section: Library
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Fix ``stop_serving`` in asyncio proactor loop kill all listening servers
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..
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.. bpo: 32308
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.. date: 2017-12-13-20-31-30
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.. nonce: CUbsb2
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.. section: Library
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:func:`re.sub()` now replaces empty matches adjacent to a previous non-empty
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match.
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..
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.. bpo: 29970
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.. date: 2017-12-13-19-02-38
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.. nonce: uxVOpk
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.. section: Library
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Abort asyncio SSLProtocol connection if handshake not complete within 10s
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..
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.. bpo: 32314
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.. date: 2017-12-13-16-47-38
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.. nonce: W4_U2j
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.. section: Library
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Implement asyncio.run().
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..
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.. bpo: 17852
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.. date: 2017-12-13-00-00-37
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.. nonce: Q8BP8N
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.. section: Library
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Revert incorrect fix based on misunderstanding of _Py_PyAtExit() semantics.
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..
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.. bpo: 32296
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.. date: 2017-12-12-18-01-01
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.. nonce: bwscHz
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.. section: Library
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Implement asyncio._get_running_loop() and get_event_loop() in C. This makes
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them 4x faster.
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..
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.. bpo: 32250
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.. date: 2017-12-12-16-58-20
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.. nonce: UljTa0
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.. section: Library
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Implement ``asyncio.current_task()`` and ``asyncio.all_tasks()``. Add
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helpers intended to be used by alternative task implementations:
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``asyncio._register_task``, ``asyncio._enter_task``, ``asyncio._leave_task``
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and ``asyncio._unregister_task``. Deprecate ``asyncio.Task.current_task()``
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and ``asyncio.Task.all_tasks()``.
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..
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.. bpo: 32255
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.. date: 2017-12-12-07-29-06
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.. nonce: 2bfNmM
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.. section: Library
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A single empty field is now always quoted when written into a CSV file. This
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allows to distinguish an empty row from a row consisting of a single empty
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field. Patch by Licht Takeuchi.
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..
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.. bpo: 32277
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.. date: 2017-12-11-09-53-14
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.. nonce: jkKiVC
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.. section: Library
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Raise ``NotImplementedError`` instead of ``SystemError`` on platforms where
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``chmod(..., follow_symlinks=False)`` is not supported. Patch by Anthony
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Sottile.
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..
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.. bpo: 30050
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.. date: 2017-12-10-23-44-56
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.. nonce: 4SZ3lY
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.. section: Library
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New argument warn_on_full_buffer to signal.set_wakeup_fd lets you control
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whether Python prints a warning on stderr when the wakeup fd buffer
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overflows.
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..
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.. bpo: 29137
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.. date: 2017-12-10-21-19-14
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.. nonce: CFcON1
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.. section: Library
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The ``fpectl`` library has been removed. It was never enabled by default,
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never worked correctly on x86-64, and it changed the Python ABI in ways that
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caused unexpected breakage of C extensions.
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..
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.. bpo: 32273
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.. date: 2017-12-10-19-14-55
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.. nonce: 5KKlCv
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.. section: Library
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Move asyncio.test_utils to test.test_asyncio.
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..
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.. bpo: 32272
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.. date: 2017-12-10-18-59-13
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.. nonce: Mu84Am
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.. section: Library
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Remove asyncio.async() function.
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..
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.. bpo: 32269
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.. date: 2017-12-10-12-30-13
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.. nonce: Q85pKj
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.. section: Library
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Add asyncio.get_running_loop() function.
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..
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.. bpo: 32265
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.. date: 2017-12-10-00-57-51
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.. nonce: kELtTE
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.. section: Library
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All class and static methods of builtin types now are correctly classified
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by inspect.classify_class_attrs() and grouped in pydoc ouput. Added
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types.ClassMethodDescriptorType for unbound class methods of builtin types.
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..
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.. bpo: 32253
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.. date: 2017-12-09-11-30-35
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.. nonce: TQHSYF
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.. section: Library
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Deprecate ``yield from lock``, ``await lock``, ``with (yield from lock)``
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and ``with await lock`` for asyncio synchronization primitives.
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..
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.. bpo: 22589
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.. date: 2017-12-08-15-09-41
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.. nonce: 8ouqI6
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.. section: Library
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Changed MIME type of .bmp from 'image/x-ms-bmp' to 'image/bmp'
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..
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.. bpo: 32193
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.. date: 2017-12-08-11-02-26
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.. nonce: NJe_TQ
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.. section: Library
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Convert asyncio to use *async/await* syntax. Old styled ``yield from`` is
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still supported too.
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..
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.. bpo: 32206
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.. date: 2017-12-07-13-14-40
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.. nonce: obm4OM
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.. section: Library
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Add support to run modules with pdb
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..
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.. bpo: 32227
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.. date: 2017-12-05-13-25-15
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.. nonce: 3vnWFS
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.. section: Library
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``functools.singledispatch`` now supports registering implementations using
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type annotations.
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..
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.. bpo: 15873
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.. date: 2017-12-04-17-41-40
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.. nonce: -T4TRK
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.. section: Library
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Added new alternate constructors :meth:`datetime.datetime.fromisoformat`,
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:meth:`datetime.time.fromisoformat` and :meth:`datetime.date.fromisoformat`
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as the inverse operation of each classes's respective ``isoformat`` methods.
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..
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.. bpo: 32199
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.. date: 2017-12-04-12-23-26
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.. nonce: nGof4v
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.. section: Library
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The getnode() ip getter now uses 'ip link' instead of 'ip link list'.
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..
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.. bpo: 32143
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.. date: 2017-11-26-17-28-26
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.. nonce: o7YdXL
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.. section: Library
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os.statvfs() includes the f_fsid field from statvfs(2)
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..
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.. bpo: 26439
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.. date: 2017-11-24-08-35-43
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.. nonce: IC45_f
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.. section: Library
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Fix ctypes.util.find_library() for AIX by implementing
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ctypes._aix.find_library() Patch by: Michael Felt
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..
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.. bpo: 31993
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.. date: 2017-11-10-00-05-08
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.. nonce: -OMNg8
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.. section: Library
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The pickler now uses less memory when serializing large bytes and str
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objects into a file. Pickles created with protocol 4 will require less
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memory for unpickling large bytes and str objects.
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..
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.. bpo: 27456
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.. date: 2017-11-02-11-57-41
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.. nonce: snzyTC
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.. section: Library
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Ensure TCP_NODELAY is set on Linux. Tests by Victor Stinner.
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..
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.. bpo: 31778
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.. date: 2017-10-18-17-29-30
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.. nonce: B6vAkP
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.. section: Library
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ast.literal_eval() is now more strict. Addition and subtraction of arbitrary
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numbers no longer allowed.
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..
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.. bpo: 31802
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.. date: 2017-10-17-14-52-14
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.. nonce: sYj2Zv
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.. section: Library
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Importing native path module (``posixpath``, ``ntpath``) now works even if
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the ``os`` module still is not imported.
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..
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.. bpo: 30241
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.. date: 2017-10-10-18-56-46
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.. nonce: F_go20
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.. section: Library
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Add contextlib.AbstractAsyncContextManager. Patch by Jelle Zijlstra.
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..
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.. bpo: 31699
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.. date: 2017-10-05-11-06-32
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.. nonce: MF47Y6
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.. section: Library
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Fix deadlocks in :class:`concurrent.futures.ProcessPoolExecutor` when task
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arguments or results cause pickling or unpickling errors. This should make
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sure that calls to the :class:`ProcessPoolExecutor` API always eventually
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return.
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..
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.. bpo: 15216
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.. date: 2017-09-16-02-56-33
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.. nonce: lqXCTT
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.. section: Library
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``TextIOWrapper.reconfigure()`` supports changing *encoding*, *errors*, and
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*newline*.
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..
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.. bpo: 32418
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.. date: 2017-12-24-17-29-37
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.. nonce: eZe-ID
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.. section: Documentation
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Add get_loop() method to Server and AbstractServer classes.
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..
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.. bpo: 32252
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.. date: 2017-12-11-13-31-33
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.. nonce: YnFw7J
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.. section: Tests
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Fix faulthandler_suppress_crash_report() used to prevent core dump files
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when testing crashes. getrlimit() returns zero on success.
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..
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.. bpo: 32002
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.. date: 2017-11-11-16-35-18
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.. nonce: itDxIo
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.. section: Tests
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Adjust C locale coercion testing for the empty locale and POSIX locale cases
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to more readily adjust to platform dependent behaviour.
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..
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.. bpo: 19764
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.. date: 2017-08-18-18-00-24
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.. nonce: ODpc9y
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.. section: Windows
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Implement support for `subprocess.Popen(close_fds=True)` on Windows. Patch
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by Segev Finer.
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..
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.. bpo: 24960
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.. date: 2017-12-22-09-25-51
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.. nonce: TGdAgO
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.. section: Tools/Demos
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2to3 and lib2to3 can now read pickled grammar files using pkgutil.get_data()
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rather than probing the filesystem. This lets 2to3 and lib2to3 work when run
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from a zipfile.
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..
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.. bpo: 32030
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.. date: 2017-12-20-23-22-32
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.. nonce: d1dcwh
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.. section: C API
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Py_Initialize() doesn't reset the memory allocators to default if the
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``PYTHONMALLOC`` environment variable is not set.
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..
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.. bpo: 29084
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.. date: 2017-12-16-09-59-35
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.. nonce: ZGJ-LJ
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.. section: C API
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Undocumented C API for OrderedDict has been excluded from the limited C API.
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It was added by mistake and actually never worked in the limited C API.
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..
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|
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.. bpo: 32264
|
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.. date: 2017-12-12-23-09-46
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.. nonce: ahRlOI
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.. section: C API
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Moved the pygetopt.h header into internal/, since it has no public APIs.
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..
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.. bpo: 32241
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.. date: 2017-12-07-15-58-15
|
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.. nonce: LbyQt6
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.. section: C API
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:c:func:`Py_SetProgramName` and :c:func:`Py_SetPythonHome` now take the
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``const wchar *`` arguments instead of ``wchar *``.
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