| .. bpo: 40791 |
| .. date: 2020-05-28-06-06-47 |
| .. nonce: QGZClX |
| .. release date: 2020-12-07 |
| .. section: Security |
| |
| Add ``volatile`` to the accumulator variable in ``hmac.compare_digest``, |
| making constant-time-defeating optimizations less likely. |
| |
| .. |
| |
| .. bpo: 42576 |
| .. date: 2020-12-05-22-34-47 |
| .. nonce: lEeEl7 |
| .. section: Core and Builtins |
| |
| ``types.GenericAlias`` will now raise a ``TypeError`` when attempting to |
| initialize with a keyword argument. Previously, this would cause the |
| interpreter to crash if the interpreter was compiled with debug symbols. |
| This does not affect interpreters compiled for release. Patch by Ken Jin. |
| |
| .. |
| |
| .. bpo: 42536 |
| .. date: 2020-12-02-20-23-31 |
| .. nonce: Kx3ZOu |
| .. section: Core and Builtins |
| |
| Several built-in and standard library types now ensure that their internal |
| result tuples are always tracked by the :term:`garbage collector <garbage |
| collection>`: |
| |
| - :meth:`collections.OrderedDict.items() <collections.OrderedDict>` |
| |
| - :meth:`dict.items` |
| |
| - :func:`enumerate` |
| |
| - :func:`functools.reduce` |
| |
| - :func:`itertools.combinations` |
| |
| - :func:`itertools.combinations_with_replacement` |
| |
| - :func:`itertools.permutations` |
| |
| - :func:`itertools.product` |
| |
| - :func:`itertools.zip_longest` |
| |
| - :func:`zip` |
| |
| Previously, they could have become untracked by a prior garbage collection. |
| Patch by Brandt Bucher. |
| |
| .. |
| |
| .. bpo: 42500 |
| .. date: 2020-11-30-14-27-29 |
| .. nonce: excVKU |
| .. section: Core and Builtins |
| |
| Improve handling of exceptions near recursion limit. Converts a number of |
| Fatal Errors in RecursionErrors. |
| |
| .. |
| |
| .. bpo: 42246 |
| .. date: 2020-11-24-14-01-43 |
| .. nonce: c9k9hj |
| .. section: Core and Builtins |
| |
| PEP 626: After a return, the f_lineno attribute of a frame is always the |
| last line executed. |
| |
| .. |
| |
| .. bpo: 42435 |
| .. date: 2020-11-22-14-34-55 |
| .. nonce: uwlB2W |
| .. section: Core and Builtins |
| |
| Speed up comparison of bytes objects with non-bytes objects when option |
| :option:`-b` is specified. Speed up comparison of bytarray objects with |
| non-buffer object. |
| |
| .. |
| |
| .. bpo: 1635741 |
| .. date: 2020-11-18-23-46-31 |
| .. nonce: GVOQ-m |
| .. section: Core and Builtins |
| |
| Port the ``_warnings`` extension module to the multi-phase initialization |
| API (:pep:`489`). Patch by Victor Stinner. |
| |
| .. |
| |
| .. bpo: 41686 |
| .. date: 2020-11-17-16-25-50 |
| .. nonce: hX77kL |
| .. section: Core and Builtins |
| |
| On Windows, the ``SIGINT`` event, ``_PyOS_SigintEvent()``, is now created |
| even if Python is configured to not install signal handlers (if |
| :c:member:`PyConfig.install_signal_handlers` equals to 0, or |
| ``Py_InitializeEx(0)``). |
| |
| .. |
| |
| .. bpo: 42381 |
| .. date: 2020-11-16-23-45-56 |
| .. nonce: G4AWxL |
| .. section: Core and Builtins |
| |
| Allow assignment expressions in set literals and set comprehensions as per |
| PEP 572. Patch by Pablo Galindo. |
| |
| .. |
| |
| .. bpo: 42202 |
| .. date: 2020-11-16-18-13-07 |
| .. nonce: ZxenYD |
| .. section: Core and Builtins |
| |
| Change function parameters annotations internal representation to tuple of |
| strings. Patch provided by Yurii Karabas. |
| |
| .. |
| |
| .. bpo: 42374 |
| .. date: 2020-11-16-17-57-09 |
| .. nonce: t7np1E |
| .. section: Core and Builtins |
| |
| Fix a regression introduced by the new parser, where an unparenthesized |
| walrus operator was not allowed within generator expressions. |
| |
| .. |
| |
| .. bpo: 42316 |
| .. date: 2020-11-16-17-30-03 |
| .. nonce: _DdmpQ |
| .. section: Core and Builtins |
| |
| Allow an unparenthesized walrus in subscript indexes. |
| |
| .. |
| |
| .. bpo: 42349 |
| .. date: 2020-11-13-17-25-44 |
| .. nonce: JdWxez |
| .. section: Core and Builtins |
| |
| Make sure that the compiler front-end produces a well-formed control flow |
| graph. Be be more aggressive in the compiler back-end, as it is now safe to |
| do so. |
| |
| .. |
| |
| .. bpo: 42296 |
| .. date: 2020-11-13-13-53-11 |
| .. nonce: DuGrLJ |
| .. section: Core and Builtins |
| |
| On Windows, fix a regression in signal handling which prevented to interrupt |
| a program using CTRL+C. The signal handler can be run in a thread different |
| than the Python thread, in which case the test deciding if the thread can |
| handle signals is wrong. |
| |
| .. |
| |
| .. bpo: 42332 |
| .. date: 2020-11-12-23-16-14 |
| .. nonce: fEQIdk |
| .. section: Core and Builtins |
| |
| :class:`types.GenericAlias` objects can now be the targets of weakrefs. |
| |
| .. |
| |
| .. bpo: 42282 |
| .. date: 2020-11-07-21-02-05 |
| .. nonce: M1W4Wj |
| .. section: Core and Builtins |
| |
| Optimise constant subexpressions that appear as part of named expressions |
| (previously the AST optimiser did not descend into named expressions). Patch |
| by Nick Coghlan. |
| |
| .. |
| |
| .. bpo: 42266 |
| .. date: 2020-11-04-23-03-25 |
| .. nonce: G4hGDe |
| .. section: Core and Builtins |
| |
| Fixed a bug with the LOAD_ATTR opcode cache that was not respecting |
| monkey-patching a class-level attribute to make it a descriptor. Patch by |
| Pablo Galindo. |
| |
| .. |
| |
| .. bpo: 40077 |
| .. date: 2020-11-03-21-58-27 |
| .. nonce: a9qM1j |
| .. section: Core and Builtins |
| |
| Convert :mod:`queue` to use heap types. |
| |
| .. |
| |
| .. bpo: 42246 |
| .. date: 2020-11-02-15-48-17 |
| .. nonce: 3CNQEX |
| .. section: Core and Builtins |
| |
| Improved accuracy of line tracing events and f_lineno attribute of Frame |
| objects. See PEP 626 for details. |
| |
| .. |
| |
| .. bpo: 40077 |
| .. date: 2020-11-02-14-39-48 |
| .. nonce: grY9TG |
| .. section: Core and Builtins |
| |
| Convert :mod:`mmap` to use heap types. |
| |
| .. |
| |
| .. bpo: 42233 |
| .. date: 2020-11-01-23-34-56 |
| .. nonce: zOSzja |
| .. section: Core and Builtins |
| |
| Allow ``GenericAlias`` objects to use :ref:`union type expressions |
| <types-union>`. This allows expressions like ``list[int] | dict[float, |
| str]`` where previously a ``TypeError`` would have been thrown. This also |
| fixes union type expressions not de-duplicating ``GenericAlias`` objects. |
| (Contributed by Ken Jin in :issue:`42233`.) |
| |
| .. |
| |
| .. bpo: 26131 |
| .. date: 2020-10-22-17-27-08 |
| .. nonce: B-Veg7 |
| .. section: Core and Builtins |
| |
| The import system triggers a `ImportWarning` when it falls back to using |
| `load_module()`. |
| |
| .. |
| |
| .. bpo: 5054 |
| .. date: 2020-12-04-03-51-12 |
| .. nonce: 53StYZ |
| .. section: Library |
| |
| CGIHTTPRequestHandler.run_cgi() HTTP_ACCEPT improperly parsed. Replace the |
| special purpose getallmatchingheaders with generic get_all method and add |
| relevant tests. |
| |
| Original Patch by Martin Panter. Modified by Senthil Kumaran. |
| |
| .. |
| |
| .. bpo: 42562 |
| .. date: 2020-12-03-22-42-03 |
| .. nonce: 2hPmhi |
| .. section: Library |
| |
| Fix issue when dis failed to parse function that has no line numbers. Patch |
| provided by Yurii Karabas. |
| |
| .. |
| |
| .. bpo: 17735 |
| .. date: 2020-12-03-22-22-24 |
| .. nonce: Qsaaue |
| .. section: Library |
| |
| :func:`inspect.findsource` now raises :exc:`OSError` instead of |
| :exc:`IndexError` when :attr:`co_lineno` of a code object is greater than |
| the file length. This can happen, for example, when a file is edited after |
| it was imported. PR by Irit Katriel. |
| |
| .. |
| |
| .. bpo: 42116 |
| .. date: 2020-12-03-15-42-32 |
| .. nonce: yIwroP |
| .. section: Library |
| |
| Fix handling of trailing comments by :func:`inspect.getsource`. |
| |
| .. |
| |
| .. bpo: 42532 |
| .. date: 2020-12-02-07-37-59 |
| .. nonce: ObNep_ |
| .. section: Library |
| |
| Remove unexpected call of ``__bool__`` when passing a ``spec_arg`` argument |
| to a Mock. |
| |
| .. |
| |
| .. bpo: 38200 |
| .. date: 2020-11-28-22-52-57 |
| .. nonce: DuWGlW |
| .. section: Library |
| |
| Added itertools.pairwise() |
| |
| .. |
| |
| .. bpo: 41818 |
| .. date: 2020-11-28-06-34-53 |
| .. nonce: mFSMc2 |
| .. section: Library |
| |
| Fix test_master_read() so that it succeeds on all platforms that either |
| raise OSError or return b"" upon reading from master. |
| |
| .. |
| |
| .. bpo: 42487 |
| .. date: 2020-11-28-04-31-20 |
| .. nonce: iqtC4L |
| .. section: Library |
| |
| ChainMap.__iter__ no longer calls __getitem__ on underlying maps |
| |
| .. |
| |
| .. bpo: 42482 |
| .. date: 2020-11-27-16-46-58 |
| .. nonce: EJC3sd |
| .. section: Library |
| |
| :class:`~traceback.TracebackException` no longer holds a reference to the |
| exception's traceback object. Consequently, instances of TracebackException |
| for equivalent but non-equal exceptions now compare as equal. |
| |
| .. |
| |
| .. bpo: 41818 |
| .. date: 2020-11-27-09-19-43 |
| .. nonce: KWYUbL |
| .. section: Library |
| |
| Make test_openpty() avoid unexpected success due to number of rows and/or |
| number of columns being == 0. |
| |
| .. |
| |
| .. bpo: 42392 |
| .. date: 2020-11-26-12-40-16 |
| .. nonce: GbmdHE |
| .. section: Library |
| |
| Remove loop parameter from ``asyncio.subprocess`` and ``asyncio.tasks`` |
| functions. Patch provided by Yurii Karabas. |
| |
| .. |
| |
| .. bpo: 42392 |
| .. date: 2020-11-25-22-44-59 |
| .. nonce: T_DAEl |
| .. section: Library |
| |
| Remove loop parameter from ``asyncio.open_connection`` and |
| ``asyncio.start_server`` functions. Patch provided by Yurii Karabas. |
| |
| .. |
| |
| .. bpo: 28468 |
| .. date: 2020-11-24-13-18-05 |
| .. nonce: 8Gh2d4 |
| .. section: Library |
| |
| Add :func:`platform.freedesktop_os_release` function to parse |
| freedesktop.org ``os-release`` files. |
| |
| .. |
| |
| .. bpo: 42299 |
| .. date: 2020-11-23-23-42-08 |
| .. nonce: Fdn4Wf |
| .. section: Library |
| |
| Removed the ``formatter`` module, which was deprecated in Python 3.4. It is |
| somewhat obsolete, little used, and not tested. It was originally scheduled |
| to be removed in Python 3.6, but such removals were delayed until after |
| Python 2.7 EOL. Existing users should copy whatever classes they use into |
| their code. Patch by Dong-hee Na and and Terry J. Reedy. |
| |
| .. |
| |
| .. bpo: 26131 |
| .. date: 2020-11-22-12-30-26 |
| .. nonce: -HsFPG |
| .. section: Library |
| |
| Deprecate zipimport.zipimporter.load_module() in favour of exec_module(). |
| |
| .. |
| |
| .. bpo: 41818 |
| .. date: 2020-11-20-14-44-07 |
| .. nonce: 33soAw |
| .. section: Library |
| |
| Updated tests for the pty library. test_basic() has been changed to |
| test_openpty(); this additionally checks if slave termios and slave winsize |
| are being set properly by pty.openpty(). In order to add support for |
| FreeBSD, NetBSD, OpenBSD, and Darwin, this also adds test_master_read(), |
| which demonstrates that pty.spawn() should not depend on an OSError to exit |
| from its copy loop. |
| |
| .. |
| |
| .. bpo: 42392 |
| .. date: 2020-11-20-14-01-29 |
| .. nonce: -OUzvl |
| .. section: Library |
| |
| Remove loop parameter from ``__init__`` in all ``asyncio.locks`` and |
| ``asyncio.Queue`` classes. Patch provided by Yurii Karabas. |
| |
| .. |
| |
| .. bpo: 15450 |
| .. date: 2020-11-20-10-38-34 |
| .. nonce: E-y9PA |
| .. section: Library |
| |
| Make :class:`filecmp.dircmp` respect subclassing. Now the |
| :attr:`filecmp.dircmp.subdirs` behaves as expected when subclassing dircmp. |
| |
| .. |
| |
| .. bpo: 42413 |
| .. date: 2020-11-19-20-27-51 |
| .. nonce: fjHrHx |
| .. section: Library |
| |
| The exception :exc:`socket.timeout` is now an alias of :exc:`TimeoutError`. |
| |
| .. |
| |
| .. bpo: 31904 |
| .. date: 2020-11-19-16-14-36 |
| .. nonce: 83kf9d |
| .. section: Library |
| |
| Support signal module on VxWorks. |
| |
| .. |
| |
| .. bpo: 42406 |
| .. date: 2020-11-19-10-44-41 |
| .. nonce: r9rNCj |
| .. section: Library |
| |
| We fixed an issue in `pickle.whichmodule` in which importing |
| `multiprocessing` could change the how pickle identifies which module an |
| object belongs to, potentially breaking the unpickling of those objects. |
| |
| .. |
| |
| .. bpo: 42403 |
| .. date: 2020-11-19-10-12-39 |
| .. nonce: t7q5AX |
| .. section: Library |
| |
| Simplify the :mod:`importlib` external bootstrap code: |
| ``importlib._bootstrap_external`` now uses regular imports to import builtin |
| modules. When it is imported, the builtin :func:`__import__()` function is |
| already fully working and so can be used to import builtin modules like |
| :mod:`sys`. Patch by Victor Stinner. |
| |
| .. |
| |
| .. bpo: 1635741 |
| .. date: 2020-11-19-09-59-07 |
| .. nonce: 7cMypH |
| .. section: Library |
| |
| Convert _sre module types to heap types (PEP 384). Patch by Erlend E. |
| Aasland. |
| |
| .. |
| |
| .. bpo: 42375 |
| .. date: 2020-11-19-04-13-53 |
| .. nonce: U8bp4s |
| .. section: Library |
| |
| subprocess module update for DragonFlyBSD support. |
| |
| .. |
| |
| .. bpo: 41713 |
| .. date: 2020-11-17-23-00-27 |
| .. nonce: -Us0tf |
| .. section: Library |
| |
| Port the ``_signal`` extension module to the multi-phase initialization API |
| (:pep:`489`). Patch by Victor Stinner and Mohamed Koubaa. |
| |
| .. |
| |
| .. bpo: 37205 |
| .. date: 2020-11-16-15-08-12 |
| .. nonce: Wh5svI |
| .. section: Library |
| |
| :func:`time.time()`, :func:`time.perf_counter()` and |
| :func:`time.monotonic()` functions can no longer fail with a Python fatal |
| error, instead raise a regular Python exception on failure. |
| |
| .. |
| |
| .. bpo: 42328 |
| .. date: 2020-11-15-17-02-00 |
| .. nonce: bqpPlR |
| .. section: Library |
| |
| Fixed :meth:`tkinter.ttk.Style.map`. The function accepts now the |
| representation of the default state as empty sequence (as returned by |
| ``Style.map()``). The structure of the result is now the same on all |
| platform and does not depend on the value of ``wantobjects``. |
| |
| .. |
| |
| .. bpo: 42345 |
| .. date: 2020-11-15-15-23-34 |
| .. nonce: hiIR7x |
| .. section: Library |
| |
| Fix various issues with ``typing.Literal`` parameter handling (flatten, |
| deduplicate, use type to cache key). Patch provided by Yurii Karabas. |
| |
| .. |
| |
| .. bpo: 37205 |
| .. date: 2020-11-14-14-34-32 |
| .. nonce: iDbHrw |
| .. section: Library |
| |
| :func:`time.perf_counter()` on Windows and :func:`time.monotonic()` on macOS |
| are now system-wide. Previously, they used an offset computed at startup to |
| reduce the precision loss caused by the float type. Use |
| :func:`time.perf_counter_ns()` and :func:`time.monotonic_ns()` added in |
| Python 3.7 to avoid this precision loss. |
| |
| .. |
| |
| .. bpo: 42318 |
| .. date: 2020-11-14-13-46-27 |
| .. nonce: wYAcBD |
| .. section: Library |
| |
| Fixed support of non-BMP characters in :mod:`tkinter` on macOS. |
| |
| .. |
| |
| .. bpo: 42350 |
| .. date: 2020-11-13-18-53-50 |
| .. nonce: rsql7V |
| .. section: Library |
| |
| Fix the :class:`threading.Thread` class at fork: do nothing if the thread is |
| already stopped (ex: fork called at Python exit). Previously, an error was |
| logged in the child process. |
| |
| .. |
| |
| .. bpo: 42333 |
| .. date: 2020-11-12-18-21-15 |
| .. nonce: J9vFmV |
| .. section: Library |
| |
| Port _ssl extension module to heap types. |
| |
| .. |
| |
| .. bpo: 42014 |
| .. date: 2020-11-10-15-40-56 |
| .. nonce: ShM37l |
| .. section: Library |
| |
| The ``onerror`` callback from ``shutil.rmtree`` now receives correct |
| function when ``os.open`` fails. |
| |
| .. |
| |
| .. bpo: 42237 |
| .. date: 2020-11-10-14-27-49 |
| .. nonce: F363jO |
| .. section: Library |
| |
| Fix `os.sendfile()` on illumos. |
| |
| .. |
| |
| .. bpo: 42308 |
| .. date: 2020-11-10-12-09-13 |
| .. nonce: yaJHH9 |
| .. section: Library |
| |
| Add :data:`threading.__excepthook__` to allow retrieving the original value |
| of :func:`threading.excepthook` in case it is set to a broken or a different |
| value. Patch by Mario Corchero. |
| |
| .. |
| |
| .. bpo: 42131 |
| .. date: 2020-11-06-18-20-47 |
| .. nonce: l2rjjG |
| .. section: Library |
| |
| Implement PEP 451/spec methods on zipimport.zipimporter: find_spec(), |
| create_module(), and exec_module(). |
| |
| This also allows for the documented deprecation of find_loader(), |
| find_module(), and load_module(). |
| |
| .. |
| |
| .. bpo: 41877 |
| .. date: 2020-11-05-16-00-03 |
| .. nonce: FHbngM |
| .. section: Library |
| |
| Mock objects which are not unsafe will now raise an AttributeError if an |
| attribute with the prefix asert, aseert, or assrt is accessed, in addition |
| to this already happening for the prefixes assert or assret. |
| |
| .. |
| |
| .. bpo: 42264 |
| .. date: 2020-11-05-13-32-41 |
| .. nonce: r4KYUU |
| .. section: Library |
| |
| ``sqlite3.OptimizedUnicode`` has been undocumented and obsolete since Python |
| 3.3, when it was made an alias to :class:`str`. It is now deprecated, |
| scheduled for removal in Python 3.12. |
| |
| .. |
| |
| .. bpo: 42251 |
| .. date: 2020-11-03-14-15-35 |
| .. nonce: 6TC32V |
| .. section: Library |
| |
| Added :func:`threading.gettrace` and :func:`threading.getprofile` to |
| retrieve the functions set by :func:`threading.settrace` and |
| :func:`threading.setprofile` respectively. Patch by Mario Corchero. |
| |
| .. |
| |
| .. bpo: 42249 |
| .. date: 2020-11-03-09-22-56 |
| .. nonce: vfNO2u |
| .. section: Library |
| |
| Fixed writing binary Plist files larger than 4 GiB. |
| |
| .. |
| |
| .. bpo: 42236 |
| .. date: 2020-11-02-23-05-17 |
| .. nonce: aJ6ZBR |
| .. section: Library |
| |
| On Unix, the :func:`os.device_encoding` function now returns ``'UTF-8'`` |
| rather than the device encoding if the :ref:`Python UTF-8 Mode <utf8-mode>` |
| is enabled. |
| |
| .. |
| |
| .. bpo: 41754 |
| .. date: 2020-11-01-15-07-20 |
| .. nonce: DraSZh |
| .. section: Library |
| |
| webbrowser: Ignore *NotADirectoryError* when calling ``xdg-settings``. |
| |
| .. |
| |
| .. bpo: 42183 |
| .. date: 2020-10-29-11-17-35 |
| .. nonce: 50ZcIi |
| .. section: Library |
| |
| Fix a stack overflow error for asyncio Task or Future repr(). |
| |
| The overflow occurs under some circumstances when a Task or Future |
| recursively returns itself. |
| |
| .. |
| |
| .. bpo: 42140 |
| .. date: 2020-10-24-04-02-36 |
| .. nonce: miLqvb |
| .. section: Library |
| |
| Improve asyncio.wait function to create the futures set just one time. |
| |
| .. |
| |
| .. bpo: 42133 |
| .. date: 2020-10-23-15-47-47 |
| .. nonce: BzizYV |
| .. section: Library |
| |
| Update various modules in the stdlib to fall back on `__spec__.loader` when |
| `__loader__` isn't defined on a module. |
| |
| .. |
| |
| .. bpo: 26131 |
| .. date: 2020-10-22-17-26-35 |
| .. nonce: CAsI3O |
| .. section: Library |
| |
| The `load_module()` methods found in importlib now trigger a |
| DeprecationWarning. |
| |
| .. |
| |
| .. bpo: 39825 |
| .. date: 2020-10-20-08-28-26 |
| .. nonce: n6KnG0 |
| .. section: Library |
| |
| Windows: Change ``sysconfig.get_config_var('EXT_SUFFIX')`` to the expected |
| full ``platform_tag.extension`` format. Previously it was hard-coded to |
| ``.pyd``, now it is compatible with ``distutils.sysconfig`` and will result |
| in something like ``.cp38-win_amd64.pyd``. This brings windows into |
| conformance with the other platforms. |
| |
| .. |
| |
| .. bpo: 26389 |
| .. date: 2020-10-08-23-51-55 |
| .. nonce: uga44e |
| .. section: Library |
| |
| The :func:`traceback.format_exception`, |
| :func:`traceback.format_exception_only`, and |
| :func:`traceback.print_exception` functions can now take an exception object |
| as a positional-only argument. |
| |
| .. |
| |
| .. bpo: 41889 |
| .. date: 2020-10-01-16-17-11 |
| .. nonce: qLkNh8 |
| .. section: Library |
| |
| Enum: fix regression involving inheriting a multiply-inherited enum |
| |
| .. |
| |
| .. bpo: 41861 |
| .. date: 2020-10-01-15-44-52 |
| .. nonce: YTqJ7z |
| .. section: Library |
| |
| Convert :mod:`sqlite3` to use heap types (PEP 384). Patch by Erlend E. |
| Aasland. |
| |
| .. |
| |
| .. bpo: 40624 |
| .. date: 2020-09-08-03-19-04 |
| .. nonce: 0-gYfx |
| .. section: Library |
| |
| Added support for the XPath ``!=`` operator in xml.etree |
| |
| .. |
| |
| .. bpo: 28850 |
| .. date: 2020-09-06-21-55-44 |
| .. nonce: HJNggD |
| .. section: Library |
| |
| Fix :meth:`pprint.PrettyPrinter.format` overrides being ignored for contents |
| of small containers. The :func:`pprint._safe_repr` function was removed. |
| |
| .. |
| |
| .. bpo: 41625 |
| .. date: 2020-08-24-16-59-04 |
| .. nonce: Cc967V |
| .. section: Library |
| |
| Expose the :c:func:`splice` as :func:`os.splice` in the :mod:`os` module. |
| Patch by Pablo Galindo |
| |
| .. |
| |
| .. bpo: 34215 |
| .. date: 2020-08-19-20-17-51 |
| .. nonce: _Cv8c- |
| .. section: Library |
| |
| Clarify the error message for :exc:`asyncio.IncompleteReadError` when |
| ``expected`` is ``None``. |
| |
| .. |
| |
| .. bpo: 41543 |
| .. date: 2020-08-14-00-39-04 |
| .. nonce: RpcRjb |
| .. section: Library |
| |
| Add async context manager support for contextlib.nullcontext. |
| |
| .. |
| |
| .. bpo: 21041 |
| .. date: 2020-08-10-15-06-55 |
| .. nonce: cYz1eL |
| .. section: Library |
| |
| :attr:`pathlib.PurePath.parents` now supports negative indexing. Patch |
| contributed by Yaroslav Pankovych. |
| |
| .. |
| |
| .. bpo: 41332 |
| .. date: 2020-07-18-17-39-28 |
| .. nonce: QRGmA5 |
| .. section: Library |
| |
| Added missing connect_accepted_socket() method to |
| ``asyncio.AbstractEventLoop``. |
| |
| .. |
| |
| .. bpo: 12800 |
| .. date: 2020-07-09-11-32-28 |
| .. nonce: fNgWwx |
| .. section: Library |
| |
| Extracting a symlink from a tarball should succeed and overwrite the symlink |
| if it already exists. The fix is to remove the existing file or symlink |
| before extraction. Based on patch by Chris AtLee, Jeffrey Kintscher, and |
| Senthil Kumaran. |
| |
| .. |
| |
| .. bpo: 40968 |
| .. date: 2020-06-18-11-35-16 |
| .. nonce: R8Edbv |
| .. section: Library |
| |
| :mod:`urllib.request` and :mod:`http.client` now send ``http/1.1`` ALPN |
| extension during TLS handshake when no custom context is supplied. |
| |
| .. |
| |
| .. bpo: 41001 |
| .. date: 2020-06-17-12-24-26 |
| .. nonce: 5mi7b0 |
| .. section: Library |
| |
| Add func:`os.eventfd` to provide a low level interface for Linux's event |
| notification file descriptor. |
| |
| .. |
| |
| .. bpo: 40816 |
| .. date: 2020-05-29-15-25-41 |
| .. nonce: w61Pob |
| .. section: Library |
| |
| Add AsyncContextDecorator to contextlib to support async context manager as |
| a decorator. |
| |
| .. |
| |
| .. bpo: 40550 |
| .. date: 2020-05-08-21-30-54 |
| .. nonce: i7GWkb |
| .. section: Library |
| |
| Fix time-of-check/time-of-action issue in subprocess.Popen.send_signal. |
| |
| .. |
| |
| .. bpo: 39411 |
| .. date: 2020-01-21-16-38-25 |
| .. nonce: 9uHFqT |
| .. section: Library |
| |
| Add an ``is_async`` identifier to :mod:`pyclbr`'s ``Function`` objects. |
| Patch by Batuhan Taskaya |
| |
| .. |
| |
| .. bpo: 35498 |
| .. date: 2018-12-14-13-29-17 |
| .. nonce: LEJHl7 |
| .. section: Library |
| |
| Add slice support to :attr:`pathlib.PurePath.parents`. |
| |
| .. |
| |
| .. bpo: 42238 |
| .. date: 2020-11-24-22-54-49 |
| .. nonce: 62EOTu |
| .. section: Documentation |
| |
| Tentative to deprecate ``make suspicious`` by first removing it from the CI |
| and documentation builds, but keeping it around for manual uses. |
| |
| .. |
| |
| .. bpo: 42153 |
| .. date: 2020-11-15-13-46-31 |
| .. nonce: KjBhx3 |
| .. section: Documentation |
| |
| Fix the URL for the IMAP protocol documents. |
| |
| .. |
| |
| .. bpo: 41028 |
| .. date: 2020-06-18-23-37-03 |
| .. nonce: vM8bC8 |
| .. section: Documentation |
| |
| Language and version switchers, previously maintained in every cpython |
| branches, are now handled by docsbuild-script. |
| |
| .. |
| |
| .. bpo: 41473 |
| .. date: 2020-12-04-11-47-09 |
| .. nonce: W_updK |
| .. section: Tests |
| |
| Reenable test_gdb on gdb 9.2 and newer: |
| https://bugzilla.redhat.com/show_bug.cgi?id=1866884 bug is fixed in gdb |
| 10.1. |
| |
| .. |
| |
| .. bpo: 42553 |
| .. date: 2020-12-03-13-32-44 |
| .. nonce: 2TRE2N |
| .. section: Tests |
| |
| Fix ``test_asyncio.test_call_later()`` race condition: don't measure asyncio |
| performance in the ``call_later()`` unit test. The test failed randomly on |
| the CI. |
| |
| .. |
| |
| .. bpo: 31904 |
| .. date: 2020-12-01-15-51-19 |
| .. nonce: iwetj4 |
| .. section: Tests |
| |
| Fix test_netrc on VxWorks: create temporary directories using temp_cwd(). |
| |
| .. |
| |
| .. bpo: 31904 |
| .. date: 2020-11-26-11-13-13 |
| .. nonce: ay4g89 |
| .. section: Tests |
| |
| skip test_getaddrinfo_ipv6_scopeid_symbolic and |
| test_getnameinfo_ipv6_scopeid_symbolic on VxWorks |
| |
| .. |
| |
| .. bpo: 31904 |
| .. date: 2020-11-25-17-00-53 |
| .. nonce: ue4hd9 |
| .. section: Tests |
| |
| skip test_test of test_mailcap on VxWorks |
| |
| .. |
| |
| .. bpo: 31904 |
| .. date: 2020-11-24-17-26-41 |
| .. nonce: eug834 |
| .. section: Tests |
| |
| add shell requirement for test_pipes |
| |
| .. |
| |
| .. bpo: 31904 |
| .. date: 2020-11-23-11-11-29 |
| .. nonce: V3sUZk |
| .. section: Tests |
| |
| skip some tests related to fifo on VxWorks |
| |
| .. |
| |
| .. bpo: 31904 |
| .. date: 2020-11-20-15-07-18 |
| .. nonce: EBJXjJ |
| .. section: Tests |
| |
| Fix test_doctest.py failures for VxWorks. |
| |
| .. |
| |
| .. bpo: 40754 |
| .. date: 2020-11-13-21-51-34 |
| .. nonce: Ekoxkg |
| .. section: Tests |
| |
| Include ``_testinternalcapi`` module in Windows installer for test suite |
| |
| .. |
| |
| .. bpo: 41561 |
| .. date: 2020-09-18-16-14-03 |
| .. nonce: uPnwrW |
| .. section: Tests |
| |
| test_ssl: skip test_min_max_version_mismatch when TLS 1.0 is not available |
| |
| .. |
| |
| .. bpo: 31904 |
| .. date: 2020-05-20-17-28-46 |
| .. nonce: yt83Ge |
| .. section: Tests |
| |
| Fix os module failures for VxWorks RTOS. |
| |
| .. |
| |
| .. bpo: 31904 |
| .. date: 2020-05-20-14-28-48 |
| .. nonce: yJik6k |
| .. section: Tests |
| |
| Fix fifo test cases for VxWorks RTOS. |
| |
| .. |
| |
| .. bpo: 31904 |
| .. date: 2020-11-19-17-01-50 |
| .. nonce: 894dk2 |
| .. section: Build |
| |
| remove libnet dependency from detect_socket() for VxWorks |
| |
| .. |
| |
| .. bpo: 42398 |
| .. date: 2020-11-18-11-58-44 |
| .. nonce: Yt5wO8 |
| .. section: Build |
| |
| Fix a race condition in "make regen-all" when make -jN option is used to run |
| jobs in parallel. The clinic.py script now only use atomic write to write |
| files. Moveover, generated files are now left unchanged if the content does |
| not change, to not change the file modification time. |
| |
| .. |
| |
| .. bpo: 41617 |
| .. date: 2020-11-13-15-04-53 |
| .. nonce: 98_oaE |
| .. section: Build |
| |
| Fix building ``pycore_bitutils.h`` internal header on old clang version |
| without ``__builtin_bswap16()`` (ex: Xcode 4.6.3 on Mac OS X 10.7). Patch by |
| Joshua Root and Victor Stinner. |
| |
| .. |
| |
| .. bpo: 38823 |
| .. date: 2020-11-12-13-45-15 |
| .. nonce: C0z_Fe |
| .. section: Build |
| |
| It is no longer possible to build the ``_ctypes`` extension module without |
| :c:type:`wchar_t` type: remove ``CTYPES_UNICODE`` macro. Anyway, the |
| :c:type:`wchar_t` type is required to build Python. Patch by Victor Stinner. |
| |
| .. |
| |
| .. bpo: 42087 |
| .. date: 2020-10-19-15-41-05 |
| .. nonce: 2AhRFP |
| .. section: Build |
| |
| Support was removed for AIX 5.3 and below. See :issue:`40680`. |
| |
| .. |
| |
| .. bpo: 40998 |
| .. date: 2020-06-17-09-05-02 |
| .. nonce: sgqmg9 |
| .. section: Build |
| |
| Addressed three compiler warnings found by undefined behavior sanitizer |
| (ubsan). |
| |
| .. |
| |
| .. bpo: 42120 |
| .. date: 2020-11-16-22-41-02 |
| .. nonce: 9scgko |
| .. section: Windows |
| |
| Remove macro definition of ``copysign`` (to ``_copysign``) in headers. |
| |
| .. |
| |
| .. bpo: 38506 |
| .. date: 2020-11-15-23-01-14 |
| .. nonce: hhdnuP |
| .. section: Windows |
| |
| The Windows launcher now properly handles Python 3.10 when listing installed |
| Python versions. |
| |
| .. |
| |
| .. bpo: 42504 |
| .. date: 2020-12-02-15-48-40 |
| .. nonce: RQmMOR |
| .. section: macOS |
| |
| Fix build on macOS Big Sur when MACOSX_DEPLOYMENT_TARGET=11 |
| |
| .. |
| |
| .. bpo: 41116 |
| .. date: 2020-11-15-16-43-45 |
| .. nonce: oCkbrF |
| .. section: macOS |
| |
| Ensure distutils.unixxcompiler.find_library_file can find system provided |
| libraries on macOS 11. |
| |
| .. |
| |
| .. bpo: 41100 |
| .. date: 2020-11-01-16-40-23 |
| .. nonce: BApztP |
| .. section: macOS |
| |
| Add support for macOS 11 and Apple Silicon systems. |
| |
| It is now possible to build "Universal 2" binaries using |
| "--enable-universalsdk --with-universal-archs=universal2". |
| |
| Binaries build on later macOS versions can be deployed back to older |
| versions (tested up to macOS 10.9), when using the correct deployment |
| target. This is tested using Xcode 11 and later. |
| |
| .. |
| |
| .. bpo: 42232 |
| .. date: 2020-11-01-15-10-28 |
| .. nonce: 2zI1GN |
| .. section: macOS |
| |
| Added Darwin specific madvise options to mmap module. |
| |
| .. |
| |
| .. bpo: 38443 |
| .. date: 2020-10-23-10-26-53 |
| .. nonce: vu64tl |
| .. section: macOS |
| |
| The ``--enable-universalsdk`` and ``--with-universal-archs`` options for the |
| configure script now check that the specified architectures can be used. |
| |
| .. |
| |
| .. bpo: 42508 |
| .. date: 2020-11-30-19-46-05 |
| .. nonce: fE7w4M |
| .. section: IDLE |
| |
| Keep IDLE running on macOS. Remove obsolete workaround that prevented |
| running files with shortcuts when using new universal2 installers built on |
| macOS 11. |
| |
| .. |
| |
| .. bpo: 42426 |
| .. date: 2020-11-21-17-21-21 |
| .. nonce: kNnPoC |
| .. section: IDLE |
| |
| Fix reporting offset of the RE error in searchengine. |
| |
| .. |
| |
| .. bpo: 42415 |
| .. date: 2020-11-20-01-30-27 |
| .. nonce: CyD-va |
| .. section: IDLE |
| |
| Get docstrings for IDLE calltips more often by using inspect.getdoc. |
| |
| .. |
| |
| .. bpo: 42212 |
| .. date: 2020-11-20-15-11-05 |
| .. nonce: sjzgOf |
| .. section: Tools/Demos |
| |
| The smelly.py script now also checks the Python dynamic library and |
| extension modules, not only the Python static library. Make also the script |
| more verbose: explain what it does. |
| |
| .. |
| |
| .. bpo: 36310 |
| .. date: 2020-05-03-01-30-46 |
| .. nonce: xDxxwY |
| .. section: Tools/Demos |
| |
| Allow :file:`Tools/i18n/pygettext.py` to detect calls to ``gettext`` in |
| f-strings. |
| |
| .. |
| |
| .. bpo: 42423 |
| .. date: 2020-11-21-12-27-19 |
| .. nonce: ByJHhY |
| .. section: C API |
| |
| The :c:func:`PyType_FromSpecWithBases` and |
| :c:func:`PyType_FromModuleAndSpec` functions now accept a single class as |
| the *bases* argument. |
| |
| .. |
| |
| .. bpo: 1635741 |
| .. date: 2020-11-19-17-44-36 |
| .. nonce: qBZc3o |
| .. section: C API |
| |
| Port :mod:`select` extension module to multiphase initialization |
| (:pep:`489`). |
| |
| .. |
| |
| .. bpo: 1635741 |
| .. date: 2020-11-19-16-54-16 |
| .. nonce: 9tVsZt |
| .. section: C API |
| |
| Port _posixsubprocess extension module to multiphase initialization |
| (:pep:`489`). |
| |
| .. |
| |
| .. bpo: 1635741 |
| .. date: 2020-11-19-15-33-42 |
| .. nonce: 9tVsZt |
| .. section: C API |
| |
| Port _posixshmem extension module to multiphase initialization (:pep:`489`) |
| |
| .. |
| |
| .. bpo: 1635741 |
| .. date: 2020-11-19-12-06-43 |
| .. nonce: KEfZpn |
| .. section: C API |
| |
| Port _struct extension module to multiphase initialization (:pep:`489`) |
| |
| .. |
| |
| .. bpo: 1635741 |
| .. date: 2020-11-19-09-17-01 |
| .. nonce: 6F9o6L |
| .. section: C API |
| |
| Port :mod:`spwd` extension module to multiphase initialization (:pep:`489`) |
| |
| .. |
| |
| .. bpo: 1635741 |
| .. date: 2020-11-18-20-33-35 |
| .. nonce: B4ztSk |
| .. section: C API |
| |
| Port :mod:`gc` extension module to multiphase initialization (:pep:`489`) |
| |
| .. |
| |
| .. bpo: 1635741 |
| .. date: 2020-11-18-20-11-13 |
| .. nonce: fe3iRb |
| .. section: C API |
| |
| Port _queue extension module to multiphase initialization (:pep:`489`) |
| |
| .. |
| |
| .. bpo: 39573 |
| .. date: 2020-11-18-15-21-59 |
| .. nonce: VB3G2y |
| .. section: C API |
| |
| Convert :c:func:`Py_TYPE` and :c:func:`Py_SIZE` back to macros to allow |
| using them as an l-value. Many third party C extension modules rely on the |
| ability of using Py_TYPE() and Py_SIZE() to set an object type and size: |
| ``Py_TYPE(obj) = type;`` and ``Py_SIZE(obj) = size;``. |
| |
| .. |
| |
| .. bpo: 1635741 |
| .. date: 2020-11-18-10-52-38 |
| .. nonce: FrWAwJ |
| .. section: C API |
| |
| Port :mod:`symtable` extension module to multiphase initialization |
| (:pep:`489`) |
| |
| .. |
| |
| .. bpo: 1635741 |
| .. date: 2020-11-18-09-46-35 |
| .. nonce: SH8OIT |
| .. section: C API |
| |
| Port :mod:`grp` and :mod:`pwd` extension modules to multiphase |
| initialization (:pep:`489`) |
| |
| .. |
| |
| .. bpo: 1635741 |
| .. date: 2020-11-18-09-16-23 |
| .. nonce: gkoI7Y |
| .. section: C API |
| |
| Port _random extension module to multiphase initialization (:pep:`489`) |
| |
| .. |
| |
| .. bpo: 1635741 |
| .. date: 2020-11-18-08-45-36 |
| .. nonce: VLZfiY |
| .. section: C API |
| |
| Port _hashlib extension module to multiphase initialization (:pep:`489`) |
| |
| .. |
| |
| .. bpo: 41713 |
| .. date: 2020-11-17-15-39-10 |
| .. nonce: Rq99Vc |
| .. section: C API |
| |
| Removed the undocumented ``PyOS_InitInterrupts()`` function. Initializing |
| Python already implicitly installs signal handlers: see |
| :c:member:`PyConfig.install_signal_handlers`. Patch by Victor Stinner. |
| |
| .. |
| |
| .. bpo: 40170 |
| .. date: 2020-11-13-01-40-28 |
| .. nonce: uh8lEf |
| .. section: C API |
| |
| The ``Py_TRASHCAN_BEGIN`` macro no longer accesses PyTypeObject attributes, |
| but now can get the condition by calling the new private |
| :c:func:`_PyTrash_cond()` function which hides implementation details. |
| |
| .. |
| |
| .. bpo: 42260 |
| .. date: 2020-11-10-14-27-39 |
| .. nonce: -Br3Co |
| .. section: C API |
| |
| :c:func:`Py_GetPath`, :c:func:`Py_GetPrefix`, :c:func:`Py_GetExecPrefix`, |
| :c:func:`Py_GetProgramFullPath`, :c:func:`Py_GetPythonHome` and |
| :c:func:`Py_GetProgramName` functions now return ``NULL`` if called before |
| :c:func:`Py_Initialize` (before Python is initialized). Use the new |
| :ref:`Python Initialization Configuration API <init-config>` to get the |
| :ref:`Python Path Configuration. <init-path-config>`. Patch by Victor |
| Stinner. |
| |
| .. |
| |
| .. bpo: 42260 |
| .. date: 2020-11-05-18-02-07 |
| .. nonce: pAeaNR |
| .. section: C API |
| |
| The :c:func:`PyConfig_Read` function now only parses |
| :c:member:`PyConfig.argv` arguments once: :c:member:`PyConfig.parse_argv` is |
| set to ``2`` after arguments are parsed. Since Python arguments are |
| strippped from :c:member:`PyConfig.argv`, parsing arguments twice would |
| parse the application options as Python options. |
| |
| .. |
| |
| .. bpo: 42262 |
| .. date: 2020-11-04-17-22-36 |
| .. nonce: fCWzBb |
| .. section: C API |
| |
| Added :c:func:`Py_NewRef` and :c:func:`Py_XNewRef` functions to increment |
| the reference count of an object and return the object. Patch by Victor |
| Stinner. |
| |
| .. |
| |
| .. bpo: 42260 |
| .. date: 2020-11-04-16-31-55 |
| .. nonce: CmgHtF |
| .. section: C API |
| |
| When :c:func:`Py_Initialize` is called twice, the second call now updates |
| more :mod:`sys` attributes for the configuration, rather than only |
| :data:`sys.argv`. Patch by Victor Stinner. |
| |
| .. |
| |
| .. bpo: 41832 |
| .. date: 2020-11-03-19-47-06 |
| .. nonce: dL1VJJ |
| .. section: C API |
| |
| The :c:func:`PyType_FromModuleAndSpec` function now accepts NULL ``tp_doc`` |
| slot. |
| |
| .. |
| |
| .. bpo: 1635741 |
| .. date: 2020-11-03-11-52-27 |
| .. nonce: aDYJKB |
| .. section: C API |
| |
| Added :c:func:`PyModule_AddObjectRef` function: similar to |
| :c:func:`PyModule_AddObject` but don't steal a reference to the value on |
| success. Patch by Victor Stinner. |
| |
| .. |
| |
| .. bpo: 42171 |
| .. date: 2020-10-27-21-10-14 |
| .. nonce: S3FWTP |
| .. section: C API |
| |
| The :c:data:`METH_FASTCALL` calling convention is added to the limited API. |
| The functions :c:func:`PyModule_AddType`, |
| :c:func:`PyType_FromModuleAndSpec`, :c:func:`PyType_GetModule` and |
| :c:func:`PyType_GetModuleState` are added to the limited API on Windows. |
| |
| .. |
| |
| .. bpo: 42085 |
| .. date: 2020-10-19-15-58-16 |
| .. nonce: NhEf3W |
| .. section: C API |
| |
| Add dedicated entry to PyAsyncMethods for sending values |
| |
| .. |
| |
| .. bpo: 41073 |
| .. date: 2020-07-08-21-01-49 |
| .. nonce: VqQZON |
| .. section: C API |
| |
| :c:func:`PyType_GetSlot()` can now accept static types. |
| |
| .. |
| |
| .. bpo: 30459 |
| .. date: 2020-05-06-23-54-57 |
| .. nonce: N9_Jai |
| .. section: C API |
| |
| :c:func:`PyList_SET_ITEM`, :c:func:`PyTuple_SET_ITEM` and |
| :c:func:`PyCell_SET` macros can no longer be used as l-value or r-value. For |
| example, ``x = PyList_SET_ITEM(a, b, c)`` and ``PyList_SET_ITEM(a, b, c) = |
| x`` now fail with a compiler error. It prevents bugs like ``if |
| (PyList_SET_ITEM (a, b, c) < 0) ...`` test. Patch by Zackery Spytz and |
| Victor Stinner. |