python-docs-fr/whatsnew/3.9.po

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#: whatsnew/3.9.rst:3
msgid "What's New In Python 3.9"
msgstr "Les nouveautés de Python 3.9"

#: whatsnew/3.9.rst:0
msgid "Release"
msgstr "Version"

#: whatsnew/3.9.rst:5
msgid "|release|"
msgstr ""

#: whatsnew/3.9.rst:0
msgid "Date"
msgstr ""

#: whatsnew/3.9.rst:6
msgid "|today|"
msgstr "|today|"

#: whatsnew/3.9.rst:48
msgid "This article explains the new features in Python 3.9, compared to 3.8."
msgstr ""
"Cet article explique les nouvelles fonctionnalités de Python 3.9 par rapport "
"à la version 3.8."

#: whatsnew/3.9.rst:50
msgid "For full details, see the :ref:`changelog <changelog>`."
msgstr "Pour plus de détails, voir le :ref:`changelog <changelog>`."

#: whatsnew/3.9.rst:54
msgid ""
"Prerelease users should be aware that this document is currently in draft "
"form. It will be updated substantially as Python 3.9 moves towards release, "
"so it's worth checking back even after reading earlier versions."
msgstr ""
"Les utilisateurs de la prépublication doivent savoir que ce document est "
"actuellement à l'état de brouillon. Il sera mis à jour de manière "
"substantielle au fur et à mesure que Python 3.9 se rapprochera de sa version "
"finale, il est donc utile de le consulter même après avoir lu les versions "
"précédentes."

#: whatsnew/3.9.rst:60
msgid "Summary -- Release highlights"
msgstr "Résumé – Points forts de la publication"

#: whatsnew/3.9.rst:70
msgid "You should check for DeprecationWarning in your code"
msgstr "Vous devez vérifier la présence de DeprecationWarning dans votre code"

#: whatsnew/3.9.rst:72
msgid ""
"When Python 2.7 was still supported, many functions were kept for backward "
"compatibility with Python 2.7. With the end of Python 2.7 support, these "
"backward compatibility layers have been removed, or will be removed soon. "
"Most of them emitted a :exc:`DeprecationWarning` warning for several years. "
"For example, using ``collections.Mapping`` instead of ``collections.abc."
"Mapping`` emits a :exc:`DeprecationWarning` since Python 3.3, released in "
"2012."
msgstr ""
"Lorsque Python 2.7 était encore supporté, de nombreuses fonctions ont été "
"conservées pour assurer la rétrocompatibilité avec Python 2.7. Avec la fin "
"du support de Python 2.7, ces couches de rétrocompatibilité ont été "
"supprimées, ou le seront bientôt. La plupart d'entre elles ont émis un "
"avertissement :exc:`DeprecationWarning` pendant plusieurs années. Par "
"exemple, l'utilisation de ``collections.Mapping`` au lieu de ``collections."
"abc.Mapping`` émet un :exc:`DeprecationWarning` depuis Python 3.3, sorti en "
"2012."

#: whatsnew/3.9.rst:79
msgid ""
"Test your application with the :option:`-W` ``default`` command-line option "
"to see :exc:`DeprecationWarning` and :exc:`PendingDeprecationWarning`, or "
"even with :option:`-W` ``error`` to treat them as errors. :ref:`Warnings "
"Filter <warning-filter>` can be used to ignore warnings from third-party "
"code."
msgstr ""
"Testez votre application avec l'option de ligne de commande :option:`-W` "
"``default`` pour voir les :exc:`DeprecationWarning` et les :exc:"
"`PendingDeprecationWarning`, ou même avec :option:`-W` ``error`` pour les "
"traiter comme des erreurs. :ref:`Le filtre des avertissements <warning-"
"filter>` peut être utilisé pour ignorer les avertissements provenant de code "
"de tierces parties."

#: whatsnew/3.9.rst:84
msgid ""
"It has been decided to keep a few backward compatibility layers for one last "
"release, to give more time to Python projects maintainers to organize the "
"removal of the Python 2 support and add support for Python 3.9."
msgstr ""
"Il a été décidé de conserver quelques couches de compatibilité ascendante "
"pour une dernière version, afin de donner plus de temps aux responsables des "
"projets Python pour organiser la suppression du support de Python 2 et "
"ajouter le support de Python 3.9."

#: whatsnew/3.9.rst:88
msgid ""
"Aliases to :ref:`Abstract Base Classes <collections-abstract-base-classes>` "
"in the :mod:`collections` module, like ``collections.Mapping`` alias to :"
"class:`collections.abc.Mapping`, are kept for one last release for backward "
"compatibility. They will be removed from Python 3.10."
msgstr ""
"Les alias vers :ref:`Abstract Base Classes <collections-abstract-base-"
"classes>` dans le module :mod:`collections`, comme l'alias ``collections."
"Mapping`` vers :class:`collections.abc.Mapping`, sont conservés pour une "
"dernière version au titre de la rétrocompatibilité. Ils seront supprimés de "
"Python 3.10."

#: whatsnew/3.9.rst:93
msgid ""
"More generally, try to run your tests in the :ref:`Python Development Mode "
"<devmode>` which helps to prepare your code to make it compatible with the "
"next Python version."
msgstr ""
"Plus généralement, essayez d'exécuter vos tests dans le :ref:`Python "
"Development Mode <devmode>` qui aide à préparer votre code pour le rendre "
"compatible avec la prochaine version de Python."

#: whatsnew/3.9.rst:99 whatsnew/3.9.rst:1031
msgid "New Features"
msgstr "Nouvelles fonctionnalités"

#: whatsnew/3.9.rst:102
msgid "Dictionary Merge & Update Operators"
msgstr "Opérateurs de fusion et de mise à jour de dictionnaires"

#: whatsnew/3.9.rst:104
msgid ""
"Merge (``|``) and update (``|=``) operators have been added to the built-in :"
"class:`dict` class.  See :pep:`584` for a full description. (Contributed by "
"Brandt Bucher in :issue:`36144`.)"
msgstr ""
"Les opérateurs de fusion (``|``) et de mise à jour (``|=``) ont été ajoutés "
"à la classe native :class:`dict`. Voir :pep:`584` pour une description "
"complète (contribution de Brandt Bucher dans :issue:`36144`)."

#: whatsnew/3.9.rst:109
msgid "PEP 616: New removeprefix() and removesuffix() string methods"
msgstr ""
"PEP 616 : nouvelles méthodes de chaînes de caractères removeprefix() et "
"removesuffix()"

#: whatsnew/3.9.rst:111
msgid ""
":meth:`str.removeprefix(prefix)<str.removeprefix>` and :meth:`str."
"removesuffix(suffix)<str.removesuffix>` have been added to easily remove an "
"unneeded prefix or a suffix from a string. Corresponding ``bytes``, "
"``bytearray``, and ``collections.UserString`` methods have also been added. "
"See :pep:`616` for a full description. (Contributed by Dennis Sweeney in :"
"issue:`39939`.)"
msgstr ""
":meth:`str.removeprefix(préfixe)<str.removeprefix>` et :meth:`str."
"removesuffix(suffixe)<str.removesuffix>` ont été ajoutées pour supprimer "
"facilement un préfixe ou un suffixe inutile d'une chaîne. Les méthodes "
"correspondantes de ``bytes``, ``bytearray`` et ``collections.UserString`` "
"ont également été ajoutées. Voir :pep:`616` pour une description complète "
"(contribution de Dennis Sweeney dans :issue:`39939`)."

#: whatsnew/3.9.rst:119
msgid "PEP 585: Builtin Generic Types"
msgstr "PEP 585 : Types génériques natifs"

#: whatsnew/3.9.rst:121
msgid ""
"In type annotations you can now use built-in collection types such as "
"``list`` and ``dict`` as generic types instead of importing the "
"corresponding capitalized types (e.g. ``List`` or ``Dict``) from "
"``typing``.  Some other types in the standard library are also now generic, "
"for example ``queue.Queue``."
msgstr ""
"Dans les annotations de type, vous pouvez maintenant utiliser les types de "
"collection natifs tels que ``list`` et ``dict`` comme types génériques au "
"lieu d'importer les types en majuscules correspondants (par exemple ``List`` "
"ou ``Dict``) à partir de ``typing``.  D'autres types de la bibliothèque "
"standard sont maintenant génériques, par exemple ``queue.Queue``."

#: whatsnew/3.9.rst:127 whatsnew/3.9.rst:963
msgid "Example:"
msgstr "Exemple :"

#: whatsnew/3.9.rst:135
msgid ""
"See :pep:`585` for more details.  (Contributed by Guido van Rossum, Ethan "
"Smith, and Batuhan Taşkaya in :issue:`39481`.)"
msgstr ""
"Voir :pep:`585` pour plus de détails (contribution de Guido van Rossum, "
"Ethan Smith et Batuhan Taşkaya dans :issue:`39481`)."

#: whatsnew/3.9.rst:139
msgid "PEP 617: New Parser"
msgstr "PEP 617 : Nouvel analyseur syntaxique"

#: whatsnew/3.9.rst:141
msgid ""
"Python 3.9 uses a new parser, based on `PEG <https://en.wikipedia.org/wiki/"
"Parsing_expression_grammar>`_ instead of `LL(1) <https://en.wikipedia.org/"
"wiki/LL_parser>`_.  The new parser's performance is roughly comparable to "
"that of the old parser, but the PEG formalism is more flexible than LL(1) "
"when it comes to designing new language features.  We'll start using this "
"flexibility in Python 3.10 and later."
msgstr ""
"Python 3.9 utilise un nouvel analyseur syntaxique, basé sur `PEG <https://en."
"wikipedia.org/wiki/Parsing_expression_grammar>`_ au lieu de `LL(1) <https://"
"fr.wikipedia.org/wiki/Analyse_LL>`_. Les performances du nouvel analyseur "
"sont à peu près comparables à celles de l'ancien, mais le formalisme PEG est "
"plus souple que LL(1) lorsqu'il s'agit de concevoir de nouvelles "
"fonctionnalités du langage. Nous commencerons à utiliser cette flexibilité "
"en Python 3.10 et supérieur."

#: whatsnew/3.9.rst:149
msgid ""
"The :mod:`ast` module uses the new parser and produces the same AST as the "
"old parser."
msgstr ""
"Le module :mod:`ast` utilise le nouvel analyseur syntaxique et produit le "
"même AST que l'ancien analyseur."

#: whatsnew/3.9.rst:152
msgid ""
"In Python 3.10, the old parser will be deleted and so will all functionality "
"that depends on it (primarily the :mod:`parser` module, which has long been "
"deprecated).  In Python 3.9 *only*, you can switch back to the LL(1) parser "
"using a command line switch (``-X oldparser``) or an environment variable "
"(``PYTHONOLDPARSER=1``)."
msgstr ""
"En Python 3.10, l'ancien analyseur sera supprimé ainsi que toutes les "
"fonctionnalités qui en dépendent (principalement le module :mod:`parser`, "
"qui est obsolète depuis longtemps). En Python 3.9 *seulement*, vous pouvez "
"revenir à l'analyseur LL(1) en utilisant une option en ligne de commande (``-"
"X oldparser``) ou une variable d'environnement (``PYTHONOLDPARSER=1``)."

#: whatsnew/3.9.rst:158
msgid ""
"See :pep:`617` for more details.  (Contributed by Guido van Rossum, Pablo "
"Galindo and Lysandros Nikolaou in :issue:`40334`.)"
msgstr ""
"Voir :pep:`617` pour plus de détails (contribution de Guido van Rossum, "
"Pablo Galindo et Lysandros Nikolaou dans :issue:`40334`)."

#: whatsnew/3.9.rst:163
msgid "Other Language Changes"
msgstr ""

#: whatsnew/3.9.rst:165
msgid ""
":func:`__import__` now raises :exc:`ImportError` instead of :exc:"
"`ValueError`, which used to occur when a relative import went past its top-"
"level package. (Contributed by Ngalim Siregar in :issue:`37444`.)"
msgstr ""

#: whatsnew/3.9.rst:171
msgid ""
"Python now gets the absolute path of the script filename specified on the "
"command line (ex: ``python3 script.py``): the ``__file__`` attribute of the :"
"mod:`__main__` module became an absolute path, rather than a relative path. "
"These paths now remain valid after the current directory is changed by :func:"
"`os.chdir`. As a side effect, the traceback also displays the absolute path "
"for :mod:`__main__` module frames in this case. (Contributed by Victor "
"Stinner in :issue:`20443`.)"
msgstr ""

#: whatsnew/3.9.rst:179
msgid ""
"In the :ref:`Python Development Mode <devmode>` and in debug build, the "
"*encoding* and *errors* arguments are now checked for string encoding and "
"decoding operations. Examples: :func:`open`, :meth:`str.encode` and :meth:"
"`bytes.decode`."
msgstr ""

#: whatsnew/3.9.rst:184
msgid ""
"By default, for best performance, the *errors* argument is only checked at "
"the first encoding/decoding error and the *encoding* argument is sometimes "
"ignored for empty strings. (Contributed by Victor Stinner in :issue:`37388`.)"
msgstr ""

#: whatsnew/3.9.rst:189
msgid ""
"``\"\".replace(\"\", s, n)`` now returns ``s`` instead of an empty string "
"for all non-zero ``n``.  It is now consistent with ``\"\".replace(\"\", "
"s)``. There are similar changes for :class:`bytes` and :class:`bytearray` "
"objects. (Contributed by Serhiy Storchaka in :issue:`28029`.)"
msgstr ""

#: whatsnew/3.9.rst:194
msgid ""
"Any valid expression can now be used as a :term:`decorator`.  Previously, "
"the grammar was much more restrictive.  See :pep:`614` for details. "
"(Contributed by Brandt Bucher in :issue:`39702`.)"
msgstr ""

#: whatsnew/3.9.rst:198
msgid ""
"Improved help for the :mod:`typing` module. Docstrings are now shown for all "
"special forms and special generic aliases (like ``Union`` and ``List``). "
"Using :func:`help` with generic alias like ``List[int]`` will show the help "
"for the correspondent concrete type (``list`` in this case). (Contributed by "
"Serhiy Storchaka in :issue:`40257`.)"
msgstr ""

#: whatsnew/3.9.rst:206
msgid "New Modules"
msgstr ""

#: whatsnew/3.9.rst:209
msgid "zoneinfo"
msgstr ""

#: whatsnew/3.9.rst:211
msgid ""
"The :mod:`zoneinfo` module brings support for the IANA time zone database to "
"the standard library. It adds :class:`zoneinfo.ZoneInfo`, a concrete :class:"
"`datetime.tzinfo` implementation backed by the system's time zone data."
msgstr ""

#: whatsnew/3.9.rst:215
msgid "Example::"
msgstr "Exemple ::"

#: whatsnew/3.9.rst:235
msgid ""
"As a fall-back source of data for platforms that don't ship the IANA "
"database, the |tzdata|_ module was released as a first-party package -- "
"distributed via PyPI and maintained by the CPython core team."
msgstr ""

#: whatsnew/3.9.rst:244
msgid ""
":pep:`615` -- Support for the IANA Time Zone Database in the Standard Library"
msgstr ""

#: whatsnew/3.9.rst:245
msgid "PEP written and implemented by Paul Ganssle"
msgstr ""

#: whatsnew/3.9.rst:249
msgid "graphlib"
msgstr ""

#: whatsnew/3.9.rst:251
msgid ""
"Add the :mod:`graphlib` that contains the :class:`graphlib."
"TopologicalSorter` class to offer functionality to perform topological "
"sorting of graphs. (Contributed by Pablo Galindo, Tim Peters and Larry "
"Hastings in :issue:`17005`.)"
msgstr ""

#: whatsnew/3.9.rst:257
msgid "Improved Modules"
msgstr ""

#: whatsnew/3.9.rst:260
msgid "ast"
msgstr "ast"

#: whatsnew/3.9.rst:262
msgid ""
"Added the *indent* option to :func:`~ast.dump` which allows it to produce a "
"multiline indented output. (Contributed by Serhiy Storchaka in :issue:"
"`37995`.)"
msgstr ""

#: whatsnew/3.9.rst:266
msgid ""
"Added :func:`ast.unparse` as a function in the :mod:`ast` module that can be "
"used to unparse an :class:`ast.AST` object and produce a string with code "
"that would produce an equivalent :class:`ast.AST` object when parsed. "
"(Contributed by Pablo Galindo and Batuhan Taskaya in :issue:`38870`.)"
msgstr ""

#: whatsnew/3.9.rst:271
msgid ""
"Added docstrings to AST nodes that contains the ASDL signature used to "
"construct that node. (Contributed by Batuhan Taskaya in :issue:`39638`.)"
msgstr ""

#: whatsnew/3.9.rst:275
msgid "asyncio"
msgstr "asyncio"

#: whatsnew/3.9.rst:277
msgid ""
"Due to significant security concerns, the *reuse_address* parameter of :meth:"
"`asyncio.loop.create_datagram_endpoint` is no longer supported. This is "
"because of the behavior of the socket option ``SO_REUSEADDR`` in UDP. For "
"more details, see the documentation for ``loop.create_datagram_endpoint()``. "
"(Contributed by Kyle Stanley, Antoine Pitrou, and Yury Selivanov in :issue:"
"`37228`.)"
msgstr ""

#: whatsnew/3.9.rst:284
msgid ""
"Added a new :term:`coroutine` :meth:`~asyncio.loop."
"shutdown_default_executor` that schedules a shutdown for the default "
"executor that waits on the :class:`~concurrent.futures.ThreadPoolExecutor` "
"to finish closing. Also, :func:`asyncio.run` has been updated to use the "
"new :term:`coroutine`. (Contributed by Kyle Stanley in :issue:`34037`.)"
msgstr ""

#: whatsnew/3.9.rst:290
msgid ""
"Added :class:`asyncio.PidfdChildWatcher`, a Linux-specific child watcher "
"implementation that polls process file descriptors. (:issue:`38692`)"
msgstr ""

#: whatsnew/3.9.rst:293
msgid ""
"Added a new :term:`coroutine` :func:`asyncio.to_thread`. It is mainly used "
"for running IO-bound functions in a separate thread to avoid blocking the "
"event loop, and essentially works as a high-level version of :meth:`~asyncio."
"loop.run_in_executor` that can directly take keyword arguments. (Contributed "
"by Kyle Stanley and Yury Selivanov in :issue:`32309`.)"
msgstr ""

#: whatsnew/3.9.rst:300
msgid "compileall"
msgstr "compileall"

#: whatsnew/3.9.rst:302
msgid ""
"Added new possibility to use hardlinks for duplicated ``.pyc`` files: "
"*hardlink_dupes* parameter and --hardlink-dupes command line option. "
"(Contributed by  Lumír 'Frenzy' Balhar in :issue:`40495`.)"
msgstr ""

#: whatsnew/3.9.rst:305
msgid ""
"Added new options for path manipulation in resulting ``.pyc`` files: "
"*stripdir*, *prependdir*, *limit_sl_dest* parameters and -s, -p, -e command "
"line options. Added the possibility to specify the option for an "
"optimization level multiple times. (Contributed by Lumír 'Frenzy' Balhar in :"
"issue:`38112`.)"
msgstr ""

#: whatsnew/3.9.rst:310
msgid "concurrent.futures"
msgstr "concurrent.futures"

#: whatsnew/3.9.rst:312
msgid ""
"Added a new *cancel_futures* parameter to :meth:`concurrent.futures.Executor."
"shutdown` that cancels all pending futures which have not started running, "
"instead of waiting for them to complete before shutting down the executor. "
"(Contributed by Kyle Stanley in :issue:`39349`.)"
msgstr ""

#: whatsnew/3.9.rst:318
msgid ""
"Removed daemon threads from :class:`~concurrent.futures.ThreadPoolExecutor` "
"and :class:`~concurrent.futures.ProcessPoolExecutor`. This improves "
"compatibility with subinterpreters and predictability in their shutdown "
"processes. (Contributed by Kyle Stanley in :issue:`39812`.)"
msgstr ""

#: whatsnew/3.9.rst:323
msgid ""
"Workers in :class:`~concurrent.futures.ProcessPoolExecutor` are now spawned "
"on demand, only when there are no available idle workers to reuse. This "
"optimizes startup overhead and reduces the amount of lost CPU time to idle "
"workers. (Contributed by Kyle Stanley in :issue:`39207`.)"
msgstr ""

#: whatsnew/3.9.rst:329
msgid "curses"
msgstr "curses"

#: whatsnew/3.9.rst:331
msgid ""
"Add :func:`curses.get_escdelay`, :func:`curses.set_escdelay`, :func:`curses."
"get_tabsize`, and :func:`curses.set_tabsize` functions. (Contributed by "
"Anthony Sottile in :issue:`38312`.)"
msgstr ""

#: whatsnew/3.9.rst:336
msgid "datetime"
msgstr "datetime"

#: whatsnew/3.9.rst:337
msgid ""
"The :meth:`~datetime.date.isocalendar()` of :class:`datetime.date` and :meth:"
"`~datetime.datetime.isocalendar()` of :class:`datetime.datetime` methods now "
"returns a :func:`~collections.namedtuple` instead of a :class:`tuple`. "
"(Contributed by Dong-hee Na in :issue:`24416`.)"
msgstr ""

#: whatsnew/3.9.rst:343
msgid "distutils"
msgstr "distutils"

#: whatsnew/3.9.rst:345
msgid ""
"The :command:`upload` command now creates SHA2-256 and Blake2b-256 hash "
"digests. It skips MD5 on platforms that block MD5 digest. (Contributed by "
"Christian Heimes in :issue:`40698`.)"
msgstr ""

#: whatsnew/3.9.rst:350
msgid "fcntl"
msgstr ""

#: whatsnew/3.9.rst:352
msgid ""
"Added constants :data:`~fcntl.F_OFD_GETLK`, :data:`~fcntl.F_OFD_SETLK` and :"
"data:`~fcntl.F_OFD_SETLKW`. (Contributed by Dong-hee Na in :issue:`38602`.)"
msgstr ""

#: whatsnew/3.9.rst:357
msgid "ftplib"
msgstr ""

#: whatsnew/3.9.rst:359
msgid ""
":class:`~ftplib.FTP` and :class:`~ftplib.FTP_TLS` now raise a :class:"
"`ValueError` if the given timeout for their constructor is zero to prevent "
"the creation of a non-blocking socket. (Contributed by Dong-hee Na in :issue:"
"`39259`.)"
msgstr ""

#: whatsnew/3.9.rst:364
msgid "gc"
msgstr ""

#: whatsnew/3.9.rst:366
msgid ""
"When the garbage collector makes a collection in which some objects "
"resurrect (they are reachable from outside the isolated cycles after the "
"finalizers have been executed), do not block the collection of all objects "
"that are still unreachable. (Contributed by Pablo Galindo and Tim Peters in :"
"issue:`38379`.)"
msgstr ""

#: whatsnew/3.9.rst:371
msgid ""
"Added a new function :func:`gc.is_finalized` to check if an object has been "
"finalized by the garbage collector. (Contributed by Pablo Galindo in :issue:"
"`39322`.)"
msgstr ""

#: whatsnew/3.9.rst:376
msgid "hashlib"
msgstr ""

#: whatsnew/3.9.rst:378
msgid ""
"Builtin hash modules can now be disabled with ``./configure --without-"
"builtin-hashlib-hashes`` or selectively enabled with e.g. ``./configure --"
"with-builtin-hashlib-hashes=sha3,blake2`` to force use of OpenSSL based "
"implementation. (Contributed by Christian Heimes in :issue:`40479`)"
msgstr ""

#: whatsnew/3.9.rst:385
msgid "http"
msgstr ""

#: whatsnew/3.9.rst:387
msgid ""
"HTTP status codes ``103 EARLY_HINTS``, ``418 IM_A_TEAPOT`` and ``425 "
"TOO_EARLY`` are added to :class:`http.HTTPStatus`. (Contributed by Dong-hee "
"Na in :issue:`39509` and Ross Rhodes in :issue:`39507`.)"
msgstr ""

#: whatsnew/3.9.rst:391
msgid "imaplib"
msgstr ""

#: whatsnew/3.9.rst:393
msgid ""
":class:`~imaplib.IMAP4` and :class:`~imaplib.IMAP4_SSL` now have an optional "
"*timeout* parameter for their constructors. Also, the :meth:`~imaplib.IMAP4."
"open` method now has an optional *timeout* parameter with this change. The "
"overridden methods of :class:`~imaplib.IMAP4_SSL` and :class:`~imaplib."
"IMAP4_stream` were applied to this change. (Contributed by Dong-hee Na in :"
"issue:`38615`.)"
msgstr ""

#: whatsnew/3.9.rst:400
msgid ""
":meth:`imaplib.IMAP4.unselect` is added. :meth:`imaplib.IMAP4.unselect` "
"frees server's resources associated with the selected mailbox and returns "
"the server to the authenticated state. This command performs the same "
"actions as :meth:`imaplib.IMAP4.close`, except that no messages are "
"permanently removed from the currently selected mailbox. (Contributed by "
"Dong-hee Na in :issue:`40375`.)"
msgstr ""

#: whatsnew/3.9.rst:408
msgid "importlib"
msgstr "importlib"

#: whatsnew/3.9.rst:410
msgid ""
"To improve consistency with import statements, :func:`importlib.util."
"resolve_name` now raises :exc:`ImportError` instead of :exc:`ValueError` for "
"invalid relative import attempts. (Contributed by Ngalim Siregar in :issue:"
"`37444`.)"
msgstr ""

#: whatsnew/3.9.rst:416
msgid "inspect"
msgstr ""

#: whatsnew/3.9.rst:418
msgid ""
":attr:`inspect.BoundArguments.arguments` is changed from ``OrderedDict`` to "
"regular dict.  (Contributed by Inada Naoki in :issue:`36350` and :issue:"
"`39775`.)"
msgstr ""

#: whatsnew/3.9.rst:422
msgid "ipaddress"
msgstr ""

#: whatsnew/3.9.rst:424
msgid ""
":mod:`ipaddress` now supports IPv6 Scoped Addresses (IPv6 address with "
"suffix ``%<scope_id>``)."
msgstr ""

#: whatsnew/3.9.rst:426
msgid ""
"Scoped IPv6 addresses can be parsed using :class:`ipaddress.IPv6Address`. If "
"present, scope zone ID is available through the :attr:`~ipaddress."
"IPv6Address.scope_id` attribute. (Contributed by Oleksandr Pavliuk in :issue:"
"`34788`.)"
msgstr ""

#: whatsnew/3.9.rst:431
msgid "math"
msgstr ""

#: whatsnew/3.9.rst:433
msgid ""
"Expanded the :func:`math.gcd` function to handle multiple arguments. "
"Formerly, it only supported two arguments. (Contributed by Serhiy Storchaka "
"in :issue:`39648`.)"
msgstr ""

#: whatsnew/3.9.rst:437
msgid ""
"Add :func:`math.lcm`: return the least common multiple of specified "
"arguments. (Contributed by Mark Dickinson, Ananthakrishnan and Serhiy "
"Storchaka in :issue:`39479` and :issue:`39648`.)"
msgstr ""

#: whatsnew/3.9.rst:441
msgid ""
"Add :func:`math.nextafter`: return the next floating-point value after *x* "
"towards *y*. (Contributed by Victor Stinner in :issue:`39288`.)"
msgstr ""

#: whatsnew/3.9.rst:445
msgid ""
"Add :func:`math.ulp`: return the value of the least significant bit of a "
"float. (Contributed by Victor Stinner in :issue:`39310`.)"
msgstr ""

#: whatsnew/3.9.rst:450
msgid "multiprocessing"
msgstr "multiprocessing"

#: whatsnew/3.9.rst:452
msgid ""
"The :class:`multiprocessing.SimpleQueue` class has a new :meth:"
"`~multiprocessing.SimpleQueue.close` method to explicitly close the queue. "
"(Contributed by Victor Stinner in :issue:`30966`.)"
msgstr ""

#: whatsnew/3.9.rst:458
msgid "nntplib"
msgstr ""

#: whatsnew/3.9.rst:460
msgid ""
":class:`~nntplib.NNTP` and :class:`~nntplib.NNTP_SSL` now raise a :class:"
"`ValueError` if the given timeout for their constructor is zero to prevent "
"the creation of a non-blocking socket. (Contributed by Dong-hee Na in :issue:"
"`39259`.)"
msgstr ""

#: whatsnew/3.9.rst:465
msgid "os"
msgstr ""

#: whatsnew/3.9.rst:467
msgid ""
"Added :data:`~os.CLD_KILLED` and :data:`~os.CLD_STOPPED` for :attr:"
"`si_code`. (Contributed by Dong-hee Na in :issue:`38493`.)"
msgstr ""

#: whatsnew/3.9.rst:470
msgid ""
"Exposed the Linux-specific :func:`os.pidfd_open` (:issue:`38692`) and :data:"
"`os.P_PIDFD` (:issue:`38713`) for process management with file descriptors."
msgstr ""

#: whatsnew/3.9.rst:474
msgid ""
"The :func:`os.unsetenv` function is now also available on Windows. "
"(Contributed by Victor Stinner in :issue:`39413`.)"
msgstr ""

#: whatsnew/3.9.rst:477
msgid ""
"The :func:`os.putenv` and :func:`os.unsetenv` functions are now always "
"available. (Contributed by Victor Stinner in :issue:`39395`.)"
msgstr ""

#: whatsnew/3.9.rst:481
msgid ""
"Add :func:`os.waitstatus_to_exitcode` function: convert a wait status to an "
"exit code. (Contributed by Victor Stinner in :issue:`40094`.)"
msgstr ""

#: whatsnew/3.9.rst:486
msgid "pathlib"
msgstr "pathlib"

#: whatsnew/3.9.rst:488
msgid ""
"Added :meth:`pathlib.Path.readlink()` which acts similarly to :func:`os."
"readlink`. (Contributed by Girts Folkmanis in :issue:`30618`)"
msgstr ""

#: whatsnew/3.9.rst:493
msgid "poplib"
msgstr ""

#: whatsnew/3.9.rst:495
msgid ""
":class:`~poplib.POP3` and :class:`~poplib.POP3_SSL` now raise a :class:"
"`ValueError` if the given timeout for their constructor is zero to prevent "
"the creation of a non-blocking socket. (Contributed by Dong-hee Na in :issue:"
"`39259`.)"
msgstr ""

#: whatsnew/3.9.rst:500
msgid "pprint"
msgstr ""

#: whatsnew/3.9.rst:502
msgid ""
":mod:`pprint` can now pretty-print :class:`types.SimpleNamespace`. "
"(Contributed by Carl Bordum Hansen in :issue:`37376`.)"
msgstr ""

#: whatsnew/3.9.rst:506
msgid "pydoc"
msgstr ""

#: whatsnew/3.9.rst:508
msgid ""
"The documentation string is now shown not only for class, function, method "
"etc, but for any object that has its own ``__doc__`` attribute. (Contributed "
"by Serhiy Storchaka in :issue:`40257`.)"
msgstr ""

#: whatsnew/3.9.rst:513
msgid "random"
msgstr ""

#: whatsnew/3.9.rst:515
msgid ""
"Add a new :attr:`random.Random.randbytes` method: generate random bytes. "
"(Contributed by Victor Stinner in :issue:`40286`.)"
msgstr ""

#: whatsnew/3.9.rst:519
msgid "signal"
msgstr ""

#: whatsnew/3.9.rst:521
msgid ""
"Exposed the Linux-specific :func:`signal.pidfd_send_signal` for sending to "
"signals to a process using a file descriptor instead of a pid. (:issue:"
"`38712`)"
msgstr ""

#: whatsnew/3.9.rst:525
msgid "smtplib"
msgstr ""

#: whatsnew/3.9.rst:527
msgid ""
":class:`~smtplib.SMTP` and :class:`~smtplib.SMTP_SSL` now raise a :class:"
"`ValueError` if the given timeout for their constructor is zero to prevent "
"the creation of a non-blocking socket. (Contributed by Dong-hee Na in :issue:"
"`39259`.)"
msgstr ""

#: whatsnew/3.9.rst:531
msgid ""
":class:`~smtplib.LMTP` constructor  now has an optional *timeout* parameter. "
"(Contributed by Dong-hee Na in :issue:`39329`.)"
msgstr ""

#: whatsnew/3.9.rst:535
msgid "socket"
msgstr ""

#: whatsnew/3.9.rst:537
msgid ""
"The :mod:`socket` module now exports the :data:`~socket."
"CAN_RAW_JOIN_FILTERS` constant on Linux 4.1 and greater. (Contributed by "
"Stefan Tatschner and Zackery Spytz in :issue:`25780`.)"
msgstr ""

#: whatsnew/3.9.rst:541
msgid ""
"The socket module now supports the :data:`~socket.CAN_J1939` protocol on "
"platforms that support it.  (Contributed by Karl Ding in :issue:`40291`.)"
msgstr ""

#: whatsnew/3.9.rst:545
msgid "time"
msgstr "time"

#: whatsnew/3.9.rst:547
msgid ""
"On AIX, :func:`~time.thread_time` is now implemented with "
"``thread_cputime()`` which has nanosecond resolution, rather than "
"``clock_gettime(CLOCK_THREAD_CPUTIME_ID)`` which has a resolution of 10 ms. "
"(Contributed by Batuhan Taskaya in :issue:`40192`)"
msgstr ""

#: whatsnew/3.9.rst:553
msgid "sys"
msgstr "sys"

#: whatsnew/3.9.rst:555
msgid ""
"Add a new :attr:`sys.platlibdir` attribute: name of the platform-specific "
"library directory. It is used to build the path of standard library and the "
"paths of installed extension modules. It is equal to ``\"lib\"`` on most "
"platforms.  On Fedora and SuSE, it is equal to ``\"lib64\"`` on 64-bit "
"platforms. (Contributed by Jan Matějek, Matěj Cepl, Charalampos Stratakis "
"and Victor Stinner in :issue:`1294959`.)"
msgstr ""

#: whatsnew/3.9.rst:561
msgid ""
"Previously, :attr:`sys.stderr` was block-buffered when non-interactive. Now "
"``stderr`` defaults to always being line-buffered. (Contributed by Jendrik "
"Seipp in :issue:`13601`.)"
msgstr ""

#: whatsnew/3.9.rst:566
msgid "tracemalloc"
msgstr ""

#: whatsnew/3.9.rst:568
msgid ""
"Added :func:`tracemalloc.reset_peak` to set the peak size of traced memory "
"blocks to the current size, to measure the peak of specific pieces of code. "
"(Contributed by Huon Wilson in :issue:`40630`.)"
msgstr ""

#: whatsnew/3.9.rst:573
msgid "typing"
msgstr ""

#: whatsnew/3.9.rst:575
msgid ""
":pep:`593` introduced an :data:`typing.Annotated` type to decorate existing "
"types with context-specific metadata and new ``include_extras`` parameter "
"to :func:`typing.get_type_hints` to access the metadata at runtime. "
"(Contributed by Till Varoquaux and Konstantin Kashin.)"
msgstr ""

#: whatsnew/3.9.rst:581
msgid "unicodedata"
msgstr "unicodedata"

#: whatsnew/3.9.rst:583
msgid ""
"The Unicode database has been updated to version 13.0.0. (:issue:`39926`)."
msgstr ""

#: whatsnew/3.9.rst:586
msgid "venv"
msgstr "venv"

#: whatsnew/3.9.rst:588
msgid ""
"The activation scripts provided by :mod:`venv` now all specify their prompt "
"customization consistently by always using the value specified by "
"``__VENV_PROMPT__``. Previously some scripts unconditionally used "
"``__VENV_PROMPT__``, others only if it happened to be set (which was the "
"default case), and one used ``__VENV_NAME__`` instead. (Contributed by Brett "
"Cannon in :issue:`37663`.)"
msgstr ""

#: whatsnew/3.9.rst:596
msgid "xml"
msgstr ""

#: whatsnew/3.9.rst:598
msgid ""
"White space characters within attributes are now preserved when serializing :"
"mod:`xml.etree.ElementTree` to XML file. EOLNs are no longer normalized to "
"\"\\n\". This is the result of discussion about how to interpret section "
"2.11 of XML spec. (Contributed by Mefistotelis in :issue:`39011`.)"
msgstr ""

#: whatsnew/3.9.rst:606
msgid "Optimizations"
msgstr ""

#: whatsnew/3.9.rst:608
msgid ""
"Optimized the idiom for assignment a temporary variable in comprehensions. "
"Now ``for y in [expr]`` in comprehensions is as fast as a simple assignment "
"``y = expr``.  For example:"
msgstr ""

#: whatsnew/3.9.rst:612
msgid "sums = [s for s in [0] for x in data for s in [s + x]]"
msgstr ""

#: whatsnew/3.9.rst:614
msgid ""
"Unlike the ``:=`` operator this idiom does not leak a variable to the outer "
"scope."
msgstr ""

#: whatsnew/3.9.rst:617
msgid "(Contributed by Serhiy Storchaka in :issue:`32856`.)"
msgstr ""

#: whatsnew/3.9.rst:619
msgid ""
"Optimize signal handling in multithreaded applications. If a thread "
"different than the main thread gets a signal, the bytecode evaluation loop "
"is no longer interrupted at each bytecode instruction to check for pending "
"signals which cannot be handled. Only the main thread of the main "
"interpreter can handle signals."
msgstr ""

#: whatsnew/3.9.rst:625
msgid ""
"Previously, the bytecode evaluation loop was interrupted at each instruction "
"until the main thread handles signals. (Contributed by Victor Stinner in :"
"issue:`40010`.)"
msgstr ""

#: whatsnew/3.9.rst:629
msgid ""
"Optimize the :mod:`subprocess` module on FreeBSD using ``closefrom()``. "
"(Contributed by Ed Maste, Conrad Meyer, Kyle Evans, Kubilay Kocak and Victor "
"Stinner in :issue:`38061`.)"
msgstr ""

#: whatsnew/3.9.rst:633
msgid ""
"Here's a summary of performance improvements from Python 3.4 through Python "
"3.9:"
msgstr ""

#: whatsnew/3.9.rst:680
msgid ""
"These results were generated from the variable access benchmark script at: "
"``Tools/scripts/var_access_benchmark.py``. The benchmark script displays "
"timings in nanoseconds.  The benchmarks were measured on an `Intel® Core™ "
"i7-4960HQ processor <https://ark.intel.com/content/www/us/en/ark/"
"products/76088/intel-core-i7-4960hq-processor-6m-cache-up-to-3-80-ghz."
"html>`_ running the macOS 64-bit builds found at `python.org <https://www."
"python.org/downloads/mac-osx/>`_."
msgstr ""

#: whatsnew/3.9.rst:688
msgid ""
"A number of Python builtins (:class:`range`, :class:`tuple`, :class:`set`, :"
"class:`frozenset`, :class:`list`, :class:`dict`) are now sped up by using :"
"pep:`590` vectorcall protocol. (Contributed by Dong-hee Na, Mark Shannon, "
"Jeroen Demeyer and Petr Viktorin in :issue:`37207`.)"
msgstr ""

#: whatsnew/3.9.rst:694
msgid "Deprecated"
msgstr ""

#: whatsnew/3.9.rst:696
msgid ""
"The distutils ``bdist_msi`` command is now deprecated, use ``bdist_wheel`` "
"(wheel packages) instead. (Contributed by Hugo van Kemenade in :issue:"
"`39586`.)"
msgstr ""

#: whatsnew/3.9.rst:700
msgid ""
"Currently :func:`math.factorial` accepts :class:`float` instances with non-"
"negative integer values (like ``5.0``).  It raises a :exc:`ValueError` for "
"non-integral and negative floats.  It is now deprecated.  In future Python "
"versions it will raise a :exc:`TypeError` for all floats. (Contributed by "
"Serhiy Storchaka in :issue:`37315`.)"
msgstr ""

#: whatsnew/3.9.rst:706
msgid ""
"The :mod:`parser` and :mod:`symbol` modules are deprecated and will be "
"removed in future versions of Python. For the majority of use cases, users "
"can leverage the Abstract Syntax Tree (AST) generation and compilation "
"stage, using the :mod:`ast` module."
msgstr ""

#: whatsnew/3.9.rst:711
msgid ""
"The Public C API functions :c:func:`PyParser_SimpleParseStringFlags`, :c:"
"func:`PyParser_SimpleParseStringFlagsFilename`, :c:func:"
"`PyParser_SimpleParseFileFlags` and :c:func:`PyNode_Compile` are deprecated "
"and will be removed in Python 3.10 together with the old parser."
msgstr ""

#: whatsnew/3.9.rst:716
msgid ""
"Using :data:`NotImplemented` in a boolean context has been deprecated, as it "
"is almost exclusively the result of incorrect rich comparator "
"implementations. It will be made a :exc:`TypeError` in a future version of "
"Python. (Contributed by Josh Rosenberg in :issue:`35712`.)"
msgstr ""

#: whatsnew/3.9.rst:722
msgid ""
"The :mod:`random` module currently accepts any hashable type as a possible "
"seed value.  Unfortunately, some of those types are not guaranteed to have a "
"deterministic hash value.  After Python 3.9, the module will restrict its "
"seeds to :const:`None`, :class:`int`, :class:`float`, :class:`str`, :class:"
"`bytes`, and :class:`bytearray`."
msgstr ""

#: whatsnew/3.9.rst:728
msgid ""
"Opening the :class:`~gzip.GzipFile` file for writing without specifying the "
"*mode* argument is deprecated.  In future Python versions it will always be "
"opened for reading by default.  Specify the *mode* argument for opening it "
"for writing and silencing a warning. (Contributed by Serhiy Storchaka in :"
"issue:`28286`.)"
msgstr ""

#: whatsnew/3.9.rst:734
msgid ""
"Deprecated the ``split()`` method of :class:`_tkinter.TkappType` in favour "
"of the ``splitlist()`` method which has more consistent and predicable "
"behavior. (Contributed by Serhiy Storchaka in :issue:`38371`.)"
msgstr ""

#: whatsnew/3.9.rst:739
msgid ""
"The explicit passing of coroutine objects to :func:`asyncio.wait` has been "
"deprecated and will be removed in version 3.11. (Contributed by Yury "
"Selivanov and Kyle Stanley in :issue:`34790`.)"
msgstr ""

#: whatsnew/3.9.rst:743
msgid ""
"binhex4 and hexbin4 standards are now deprecated. The :mod:`binhex` module "
"and the following :mod:`binascii` functions are now deprecated:"
msgstr ""

#: whatsnew/3.9.rst:746
msgid ":func:`~binascii.b2a_hqx`, :func:`~binascii.a2b_hqx`"
msgstr ""

#: whatsnew/3.9.rst:747
msgid ":func:`~binascii.rlecode_hqx`, :func:`~binascii.rledecode_hqx`"
msgstr ""

#: whatsnew/3.9.rst:749
msgid "(Contributed by Victor Stinner in :issue:`39353`.)"
msgstr ""

#: whatsnew/3.9.rst:751
msgid ""
":mod:`ast` classes ``slice``, ``Index`` and ``ExtSlice`` are considered "
"deprecated and will be removed in future Python versions.  ``value`` itself "
"should be used instead of ``Index(value)``.  ``Tuple(slices, Load())`` "
"should be used instead of ``ExtSlice(slices)``. (Contributed by Serhiy "
"Storchaka in :issue:`32892`.)"
msgstr ""

#: whatsnew/3.9.rst:757
msgid ""
":mod:`ast` classes ``Suite``, ``Param``, ``AugLoad`` and ``AugStore`` are "
"considered deprecated and will be removed in future Python versions. They "
"were not generated by the parser and not accepted by the code generator in "
"Python 3. (Contributed by Batuhan Taskaya in :issue:`39639` and :issue:"
"`39969` and Serhiy Storchaka in :issue:`39988`.)"
msgstr ""

#: whatsnew/3.9.rst:764
msgid ""
"The :c:func:`PyEval_InitThreads` and :c:func:`PyEval_ThreadsInitialized` "
"functions are now deprecated and will be removed in Python 3.11. Calling :c:"
"func:`PyEval_InitThreads` now does nothing. The :term:`GIL` is initialized "
"by :c:func:`Py_Initialize()` since Python 3.7. (Contributed by Victor "
"Stinner in :issue:`39877`.)"
msgstr ""

#: whatsnew/3.9.rst:770
msgid ""
"Passing ``None`` as the first argument to the :func:`shlex.split` function "
"has been deprecated.  (Contributed by Zackery Spytz in :issue:`33262`.)"
msgstr ""

#: whatsnew/3.9.rst:773
msgid ""
"The :mod:`lib2to3` module now emits a :exc:`PendingDeprecationWarning`. "
"Python 3.9 switched to a PEG parser (see :pep:`617`), and Python 3.10 may "
"include new language syntax that is not parsable by lib2to3's LL(1) parser. "
"The ``lib2to3`` module may be removed from the standard library in a future "
"Python version. Consider third-party alternatives such as `LibCST`_ or "
"`parso`_. (Contributed by Carl Meyer in :issue:`40360`.)"
msgstr ""

#: whatsnew/3.9.rst:781
msgid ""
"The *random* parameter of :func:`random.shuffle` has been deprecated. "
"(Contributed by Raymond Hettinger in :issue:`40465`)"
msgstr ""

#: whatsnew/3.9.rst:788 whatsnew/3.9.rst:1129
msgid "Removed"
msgstr ""

#: whatsnew/3.9.rst:790
msgid ""
"The erroneous version at :data:`unittest.mock.__version__` has been removed."
msgstr ""

#: whatsnew/3.9.rst:792
msgid ""
":class:`nntplib.NNTP`: ``xpath()`` and ``xgtitle()`` methods have been "
"removed. These methods are deprecated since Python 3.3. Generally, these "
"extensions are not supported or not enabled by NNTP server administrators. "
"For ``xgtitle()``, please use :meth:`nntplib.NNTP.descriptions` or :meth:"
"`nntplib.NNTP.description` instead. (Contributed by Dong-hee Na in :issue:"
"`39366`.)"
msgstr ""

#: whatsnew/3.9.rst:799
msgid ""
":class:`array.array`: ``tostring()`` and ``fromstring()`` methods have been "
"removed. They were aliases to ``tobytes()`` and ``frombytes()``, deprecated "
"since Python 3.2. (Contributed by Victor Stinner in :issue:`38916`.)"
msgstr ""

#: whatsnew/3.9.rst:804
msgid ""
"The undocumented ``sys.callstats()`` function has been removed. Since Python "
"3.7, it was deprecated and always returned :const:`None`. It required a "
"special build option ``CALL_PROFILE`` which was already removed in Python "
"3.7. (Contributed by Victor Stinner in :issue:`37414`.)"
msgstr ""

#: whatsnew/3.9.rst:809
msgid ""
"The ``sys.getcheckinterval()`` and ``sys.setcheckinterval()`` functions have "
"been removed. They were deprecated since Python 3.2. Use :func:`sys."
"getswitchinterval` and :func:`sys.setswitchinterval` instead. (Contributed "
"by Victor Stinner in :issue:`37392`.)"
msgstr ""

#: whatsnew/3.9.rst:814
msgid ""
"The C function ``PyImport_Cleanup()`` has been removed. It was documented "
"as: \"Empty the module table.  For internal use only.\" (Contributed by "
"Victor Stinner in :issue:`36710`.)"
msgstr ""

#: whatsnew/3.9.rst:818
msgid ""
"``_dummy_thread`` and ``dummy_threading`` modules have been removed. These "
"modules were deprecated since Python 3.7 which requires threading support. "
"(Contributed by Victor Stinner in :issue:`37312`.)"
msgstr ""

#: whatsnew/3.9.rst:822
msgid ""
"``aifc.openfp()`` alias to ``aifc.open()``, ``sunau.openfp()`` alias to "
"``sunau.open()``, and ``wave.openfp()`` alias to :func:`wave.open()` have "
"been removed. They were deprecated since Python 3.7. (Contributed by Victor "
"Stinner in :issue:`37320`.)"
msgstr ""

#: whatsnew/3.9.rst:827
msgid ""
"The :meth:`~threading.Thread.isAlive()` method of :class:`threading.Thread` "
"has been removed. It was deprecated since Python 3.8. Use :meth:`~threading."
"Thread.is_alive()` instead. (Contributed by Dong-hee Na in :issue:`37804`.)"
msgstr ""

#: whatsnew/3.9.rst:832
msgid ""
"Methods ``getchildren()`` and ``getiterator()`` of classes :class:`~xml."
"etree.ElementTree.ElementTree` and :class:`~xml.etree.ElementTree.Element` "
"in the :mod:`~xml.etree.ElementTree` module have been removed.  They were "
"deprecated in Python 3.2. Use ``iter(x)`` or ``list(x)`` instead of ``x."
"getchildren()`` and ``x.iter()`` or ``list(x.iter())`` instead of ``x."
"getiterator()``. (Contributed by Serhiy Storchaka in :issue:`36543`.)"
msgstr ""

#: whatsnew/3.9.rst:840
msgid ""
"The old :mod:`plistlib` API has been removed, it was deprecated since Python "
"3.4. Use the :func:`~plistlib.load`, :func:`~plistlib.loads`, :func:"
"`~plistlib.dump`, and :func:`~plistlib.dumps` functions. Additionally, the "
"*use_builtin_types* parameter was removed, standard :class:`bytes` objects "
"are always used instead. (Contributed by Jon Janzen in :issue:`36409`.)"
msgstr ""

#: whatsnew/3.9.rst:846
msgid ""
"The C function ``PyGen_NeedsFinalizing`` has been removed. It was not "
"documented, tested, or used anywhere within CPython after the implementation "
"of :pep:`442`. Patch by Joannah Nanjekye. (Contributed by Joannah Nanjekye "
"in :issue:`15088`)"
msgstr ""

#: whatsnew/3.9.rst:851
msgid ""
"``base64.encodestring()`` and ``base64.decodestring()``, aliases deprecated "
"since Python 3.1, have been removed: use :func:`base64.encodebytes` and :"
"func:`base64.decodebytes` instead. (Contributed by Victor Stinner in :issue:"
"`39351`.)"
msgstr ""

#: whatsnew/3.9.rst:856
msgid ""
"``fractions.gcd()`` function has been removed, it was deprecated since "
"Python 3.5 (:issue:`22486`): use :func:`math.gcd` instead. (Contributed by "
"Victor Stinner in :issue:`39350`.)"
msgstr ""

#: whatsnew/3.9.rst:860
msgid ""
"The *buffering* parameter of :class:`bz2.BZ2File` has been removed. Since "
"Python 3.0, it was ignored and using it emitted a :exc:`DeprecationWarning`. "
"Pass an open file object to control how the file is opened. (Contributed by "
"Victor Stinner in :issue:`39357`.)"
msgstr ""

#: whatsnew/3.9.rst:865
msgid ""
"The *encoding* parameter of :func:`json.loads` has been removed. As of "
"Python 3.1, it was deprecated and ignored; using it has emitted a :exc:"
"`DeprecationWarning` since Python 3.8. (Contributed by Inada Naoki in :issue:"
"`39377`)"
msgstr ""

#: whatsnew/3.9.rst:870
msgid ""
"``with (await asyncio.lock):`` and ``with (yield from asyncio.lock):`` "
"statements are not longer supported, use ``async with lock`` instead.  The "
"same is correct for ``asyncio.Condition`` and ``asyncio.Semaphore``. "
"(Contributed by Andrew Svetlov in :issue:`34793`.)"
msgstr ""

#: whatsnew/3.9.rst:875
msgid ""
"The :func:`sys.getcounts` function, the ``-X showalloccount`` command line "
"option and the ``show_alloc_count`` field of the C structure :c:type:"
"`PyConfig` have been removed. They required a special Python build by "
"defining ``COUNT_ALLOCS`` macro. (Contributed by Victor Stinner in :issue:"
"`39489`.)"
msgstr ""

#: whatsnew/3.9.rst:881
msgid ""
"The ``_field_types`` attribute of the :class:`typing.NamedTuple` class has "
"been removed.  It was deprecated deprecated since Python 3.8.  Use the "
"``__annotations__`` attribute instead. (Contributed by Serhiy Storchaka in :"
"issue:`40182`.)"
msgstr ""

#: whatsnew/3.9.rst:886
msgid ""
"The :meth:`symtable.SymbolTable.has_exec` method has been removed. It was "
"deprecated since 2006, and only returning ``False`` when it's called. "
"(Contributed by Batuhan Taskaya in :issue:`40208`)"
msgstr ""

#: whatsnew/3.9.rst:890
msgid ""
"The :meth:`asyncio.Task.current_task` and :meth:`asyncio.Task.all_tasks` "
"have have been removed. They were deprecated since Python 3.7 and you can "
"use :func:`asyncio.current_task` and :func:`asyncio.all_tasks` instead. "
"(Contributed by Rémi Lapeyre in :issue:`40967`)"
msgstr ""

#: whatsnew/3.9.rst:897 whatsnew/3.9.rst:1085
msgid "Porting to Python 3.9"
msgstr ""

#: whatsnew/3.9.rst:899
msgid ""
"This section lists previously described changes and other bugfixes that may "
"require changes to your code."
msgstr ""

#: whatsnew/3.9.rst:904
msgid "Changes in the Python API"
msgstr ""

#: whatsnew/3.9.rst:906
msgid ""
":func:`__import__` and :func:`importlib.util.resolve_name` now raise :exc:"
"`ImportError` where it previously raised :exc:`ValueError`. Callers catching "
"the specific exception type and supporting both Python 3.9 and earlier "
"versions will need to catch both using ``except (ImportError, ValueError):``."
msgstr ""

#: whatsnew/3.9.rst:911
msgid ""
"The :mod:`venv` activation scripts no longer special-case when "
"``__VENV_PROMPT__`` is set to ``\"\"``."
msgstr ""

#: whatsnew/3.9.rst:914
msgid ""
"The :meth:`select.epoll.unregister` method no longer ignores the :data:"
"`~errno.EBADF` error. (Contributed by Victor Stinner in :issue:`39239`.)"
msgstr ""

#: whatsnew/3.9.rst:918
msgid ""
"The *compresslevel* parameter of :class:`bz2.BZ2File` became keyword-only, "
"since the *buffering* parameter has been removed. (Contributed by Victor "
"Stinner in :issue:`39357`.)"
msgstr ""

#: whatsnew/3.9.rst:922
msgid ""
"Simplified AST for subscription. Simple indices will be represented by their "
"value, extended slices will be represented as tuples. ``Index(value)`` will "
"return a ``value`` itself, ``ExtSlice(slices)`` will return ``Tuple(slices, "
"Load())``. (Contributed by Serhiy Storchaka in :issue:`34822`.)"
msgstr ""

#: whatsnew/3.9.rst:928
msgid ""
"The :mod:`importlib` module now ignores the :envvar:`PYTHONCASEOK` "
"environment variable when the :option:`-E` or :option:`-I` command line "
"options are being used."
msgstr ""

#: whatsnew/3.9.rst:932
msgid ""
"The *encoding* parameter has been added to the classes :class:`ftplib.FTP` "
"and :class:`ftplib.FTP_TLS` as a keyword-only parameter, and the default "
"encoding is changed from Latin-1 to UTF-8 to follow :rfc:`2640`."
msgstr ""

#: whatsnew/3.9.rst:936
msgid ""
":meth:`asyncio.loop.shutdown_default_executor` has been added to :class:"
"`~asyncio.AbstractEventLoop`, meaning alternative event loops that inherit "
"from it should have this method defined. (Contributed by Kyle Stanley in :"
"issue:`34037`.)"
msgstr ""

#: whatsnew/3.9.rst:941
msgid ""
"The constant values of future flags in the :mod:`__future__` module is "
"updated in order to prevent collision with compiler flags. Previously "
"``PyCF_ALLOW_TOP_LEVEL_AWAIT`` was clashing with ``CO_FUTURE_DIVISION``. "
"(Contributed by Batuhan Taskaya in :issue:`39562`)"
msgstr ""

#: whatsnew/3.9.rst:946
msgid ""
"``array('u')`` now uses ``wchar_t`` as C type instead of ``Py_UNICODE``. "
"This change doesn't affect to its behavior because ``Py_UNICODE`` is alias "
"of ``wchar_t`` since Python 3.3. (Contributed by Inada Naoki in :issue:"
"`34538`.)"
msgstr ""

#: whatsnew/3.9.rst:953
msgid "Changes in the C API"
msgstr ""

#: whatsnew/3.9.rst:955
msgid ""
"Instances of heap-allocated types (such as those created with :c:func:"
"`PyType_FromSpec` and similar APIs) hold a reference to their type object "
"since Python 3.8. As indicated in the \"Changes in the C API\" of Python "
"3.8, for the vast majority of cases, there should be no side effect but for "
"types that have a custom :c:member:`~PyTypeObject.tp_traverse` function, "
"ensure that all custom ``tp_traverse`` functions of heap-allocated types "
"visit the object's type."
msgstr ""

#: whatsnew/3.9.rst:976
msgid ""
"If your traverse function delegates to ``tp_traverse`` of its base class (or "
"another type), ensure that ``Py_TYPE(self)`` is visited only once. Note that "
"only heap types are expected to visit the type in ``tp_traverse``."
msgstr ""

#: whatsnew/3.9.rst:980
msgid "For example, if your ``tp_traverse`` function includes:"
msgstr ""

#: whatsnew/3.9.rst:986
msgid "then add:"
msgstr ""

#: whatsnew/3.9.rst:999
msgid "(See :issue:`35810` and :issue:`40217` for more information.)"
msgstr ""

#: whatsnew/3.9.rst:1002
msgid "CPython bytecode changes"
msgstr ""

#: whatsnew/3.9.rst:1004
msgid ""
"The :opcode:`LOAD_ASSERTION_ERROR` opcode was added for handling the :"
"keyword:`assert` statement. Previously, the assert statement would not work "
"correctly if the :exc:`AssertionError` exception was being shadowed. "
"(Contributed by Zackery Spytz in :issue:`34880`.)"
msgstr ""

#: whatsnew/3.9.rst:1011
msgid "Build Changes"
msgstr ""

#: whatsnew/3.9.rst:1013
msgid ""
"Add ``--with-platlibdir`` option to the ``configure`` script: name of the "
"platform-specific library directory, stored in the new :attr:`sys."
"platlibdir` attribute. See :attr:`sys.platlibdir` attribute for more "
"information. (Contributed by Jan Matějek, Matěj Cepl, Charalampos Stratakis "
"and Victor Stinner in :issue:`1294959`.)"
msgstr ""

#: whatsnew/3.9.rst:1019
msgid ""
"The ``COUNT_ALLOCS`` special build macro has been removed. (Contributed by "
"Victor Stinner in :issue:`39489`.)"
msgstr ""

#: whatsnew/3.9.rst:1022
msgid ""
"On non-Windows platforms, the :c:func:`setenv` and :c:func:`unsetenv` "
"functions are now required to build Python. (Contributed by Victor Stinner "
"in :issue:`39395`.)"
msgstr ""

#: whatsnew/3.9.rst:1028
msgid "C API Changes"
msgstr ""

#: whatsnew/3.9.rst:1033
msgid ""
":pep:`573`: Add :c:func:`PyType_FromModuleAndSpec` to associate a module "
"with a class; :c:func:`PyType_GetModule` and :c:func:`PyType_GetModuleState` "
"to retrieve the module and its state; and :c:data:`PyCMethod` and :c:data:"
"`METH_METHOD` to allow a method to access the class it was defined in. "
"(Contributed by Marcel Plch and Petr Viktorin in :issue:`38787`.)"
msgstr ""

#: whatsnew/3.9.rst:1040
msgid ""
"Add :c:func:`PyFrame_GetCode` function: get a frame code. Add :c:func:"
"`PyFrame_GetBack` function: get the frame next outer frame. (Contributed by "
"Victor Stinner in :issue:`40421`.)"
msgstr ""

#: whatsnew/3.9.rst:1044
msgid ""
"Add :c:func:`PyFrame_GetLineNumber` to the limited C API. (Contributed by "
"Victor Stinner in :issue:`40421`.)"
msgstr ""

#: whatsnew/3.9.rst:1047
msgid ""
"Add :c:func:`PyThreadState_GetInterpreter` and :c:func:"
"`PyInterpreterState_Get` functions to get the interpreter. Add :c:func:"
"`PyThreadState_GetFrame` function to get the current frame of a Python "
"thread state. Add :c:func:`PyThreadState_GetID` function: get the unique "
"identifier of a Python thread state. (Contributed by Victor Stinner in :"
"issue:`39947`.)"
msgstr ""

#: whatsnew/3.9.rst:1055
msgid ""
"Add a new public :c:func:`PyObject_CallNoArgs` function to the C API, which "
"calls a callable Python object without any arguments. It is the most "
"efficient way to call a callable Python object without any argument. "
"(Contributed by Victor Stinner in :issue:`37194`.)"
msgstr ""

#: whatsnew/3.9.rst:1060 whatsnew/3.9.rst:1140
msgid "Changes in the limited C API (if ``Py_LIMITED_API`` macro is defined):"
msgstr ""

#: whatsnew/3.9.rst:1062
msgid ""
"Provide :c:func:`Py_EnterRecursiveCall` and :c:func:`Py_LeaveRecursiveCall` "
"as regular functions for the limited API. Previously, there were defined as "
"macros, but these macros didn't compile with the limited C API which cannot "
"access ``PyThreadState.recursion_depth`` field (the structure is opaque in "
"the limited C API)."
msgstr ""

#: whatsnew/3.9.rst:1068
msgid ""
"``PyObject_INIT()`` and ``PyObject_INIT_VAR()`` become regular \"opaque\" "
"function to hide implementation details."
msgstr ""

#: whatsnew/3.9.rst:1071 whatsnew/3.9.rst:1167
msgid "(Contributed by Victor Stinner in :issue:`38644` and :issue:`39542`.)"
msgstr ""

#: whatsnew/3.9.rst:1073
msgid ""
"The :c:func:`PyModule_AddType` function is added to help adding a type to a "
"module. (Contributed by Dong-hee Na in :issue:`40024`.)"
msgstr ""

#: whatsnew/3.9.rst:1077
msgid ""
"Add the functions :c:func:`PyObject_GC_IsTracked` and :c:func:"
"`PyObject_GC_IsFinalized` to the public API to allow to query if Python "
"objects are being currently tracked or have been already finalized by the "
"garbage collector respectively. (Contributed by Pablo Galindo in :issue:"
"`40241`.)"
msgstr ""

#: whatsnew/3.9.rst:1087
msgid ""
"``PyInterpreterState.eval_frame`` (:pep:`523`) now requires a new mandatory "
"*tstate* parameter (``PyThreadState*``). (Contributed by Victor Stinner in :"
"issue:`38500`.)"
msgstr ""

#: whatsnew/3.9.rst:1091
msgid ""
"Extension modules: :c:member:`~PyModuleDef.m_traverse`, :c:member:"
"`~PyModuleDef.m_clear` and :c:member:`~PyModuleDef.m_free` functions of :c:"
"type:`PyModuleDef` are no longer called if the module state was requested "
"but is not allocated yet. This is the case immediately after the module is "
"created and before the module is executed (:c:data:`Py_mod_exec` function). "
"More precisely, these functions are not called if :c:member:`~PyModuleDef."
"m_size` is greater than 0 and the module state (as returned by :c:func:"
"`PyModule_GetState`) is ``NULL``."
msgstr ""

#: whatsnew/3.9.rst:1100
msgid ""
"Extension modules without module state (``m_size <= 0``) are not affected."
msgstr ""

#: whatsnew/3.9.rst:1102
msgid ""
"If :c:func:`Py_AddPendingCall` is called in a subinterpreter, the function "
"is now scheduled to be called from the subinterpreter, rather than being "
"called from the main interpreter. Each subinterpreter now has its own list "
"of scheduled calls. (Contributed by Victor Stinner in :issue:`39984`.)"
msgstr ""

#: whatsnew/3.9.rst:1108
msgid ""
"The Windows registry is no longer used to initialize :data:`sys.path` when "
"the ``-E`` option is used (if :c:member:`PyConfig.use_environment` is set to "
"``0``). This is significant when embedding Python on Windows. (Contributed "
"by Zackery Spytz in :issue:`8901`.)"
msgstr ""

#: whatsnew/3.9.rst:1113
msgid ""
"The global variable :c:data:`PyStructSequence_UnnamedField` is now a "
"constant and refers to a constant string. (Contributed by Serhiy Storchaka "
"in :issue:`38650`.)"
msgstr ""

#: whatsnew/3.9.rst:1117
msgid ""
"The :c:type:`PyGC_Head` structure is now opaque. It is only defined in the "
"internal C API (``pycore_gc.h``). (Contributed by Victor Stinner in :issue:"
"`40241`.)"
msgstr ""

#: whatsnew/3.9.rst:1121
msgid ""
"The ``Py_UNICODE_COPY``, ``Py_UNICODE_FILL``, ``PyUnicode_WSTR_LENGTH``, :c:"
"func:`PyUnicode_FromUnicode`, :c:func:`PyUnicode_AsUnicode`, "
"``_PyUnicode_AsUnicode``, and :c:func:`PyUnicode_AsUnicodeAndSize` are "
"marked as deprecated in C.  They have been deprecated by :pep:`393` since "
"Python 3.3. (Contributed by Inada Naoki in :issue:`36346`.)"
msgstr ""

#: whatsnew/3.9.rst:1131
msgid ""
"Exclude ``PyFPE_START_PROTECT()`` and ``PyFPE_END_PROTECT()`` macros of "
"``pyfpe.h`` from the limited C API. (Contributed by Victor Stinner in :issue:"
"`38835`.)"
msgstr ""

#: whatsnew/3.9.rst:1135
msgid ""
"The ``tp_print`` slot of :ref:`PyTypeObject <type-structs>` has been "
"removed. It was used for printing objects to files in Python 2.7 and before. "
"Since Python 3.0, it has been ignored and unused. (Contributed by Jeroen "
"Demeyer in :issue:`36974`.)"
msgstr ""

#: whatsnew/3.9.rst:1142
msgid "Exclude the following functions from the limited C API:"
msgstr ""

#: whatsnew/3.9.rst:1144
msgid ""
"``PyThreadState_DeleteCurrent()`` (Contributed by Joannah Nanjekye in :issue:"
"`37878`.)"
msgstr ""

#: whatsnew/3.9.rst:1146
msgid "``_Py_CheckRecursionLimit``"
msgstr ""

#: whatsnew/3.9.rst:1147
msgid "``_Py_NewReference()``"
msgstr ""

#: whatsnew/3.9.rst:1148
msgid "``_Py_ForgetReference()``"
msgstr ""

#: whatsnew/3.9.rst:1149
msgid "``_PyTraceMalloc_NewReference()``"
msgstr ""

#: whatsnew/3.9.rst:1150
msgid "``_Py_GetRefTotal()``"
msgstr ""

#: whatsnew/3.9.rst:1151
msgid "The trashcan mechanism which never worked in the limited C API."
msgstr ""

#: whatsnew/3.9.rst:1152
msgid "``PyTrash_UNWIND_LEVEL``"
msgstr ""

#: whatsnew/3.9.rst:1153
msgid "``Py_TRASHCAN_BEGIN_CONDITION``"
msgstr ""

#: whatsnew/3.9.rst:1154
msgid "``Py_TRASHCAN_BEGIN``"
msgstr ""

#: whatsnew/3.9.rst:1155
msgid "``Py_TRASHCAN_END``"
msgstr ""

#: whatsnew/3.9.rst:1156
msgid "``Py_TRASHCAN_SAFE_BEGIN``"
msgstr ""

#: whatsnew/3.9.rst:1157
msgid "``Py_TRASHCAN_SAFE_END``"
msgstr ""

#: whatsnew/3.9.rst:1159
msgid "Move following functions and definitions to the internal C API:"
msgstr ""

#: whatsnew/3.9.rst:1161
msgid "``_PyDebug_PrintTotalRefs()``"
msgstr ""

#: whatsnew/3.9.rst:1162
msgid "``_Py_PrintReferences()``"
msgstr ""

#: whatsnew/3.9.rst:1163
msgid "``_Py_PrintReferenceAddresses()``"
msgstr ""

#: whatsnew/3.9.rst:1164
msgid "``_Py_tracemalloc_config``"
msgstr ""

#: whatsnew/3.9.rst:1165
msgid "``_Py_AddToAllObjects()`` (specific to ``Py_TRACE_REFS`` build)"
msgstr ""

#: whatsnew/3.9.rst:1169
msgid ""
"Remove ``_PyRuntime.getframe`` hook and remove ``_PyThreadState_GetFrame`` "
"macro which was an alias to ``_PyRuntime.getframe``. They were only exposed "
"by the internal C API. Remove also ``PyThreadFrameGetter`` type. "
"(Contributed by Victor Stinner in :issue:`39946`.)"
msgstr ""

#: whatsnew/3.9.rst:1174
msgid ""
"Remove the following functions from the C API. Call :c:func:`PyGC_Collect` "
"explicitly to clear all free lists. (Contributed by Inada Naoki and Victor "
"Stinner in :issue:`37340`, :issue:`38896` and :issue:`40428`.)"
msgstr ""

#: whatsnew/3.9.rst:1179
msgid "``PyAsyncGen_ClearFreeLists()``"
msgstr ""

#: whatsnew/3.9.rst:1180
msgid "``PyContext_ClearFreeList()``"
msgstr ""

#: whatsnew/3.9.rst:1181
msgid "``PyDict_ClearFreeList()``"
msgstr ""

#: whatsnew/3.9.rst:1182
msgid "``PyFloat_ClearFreeList()``"
msgstr ""

#: whatsnew/3.9.rst:1183
msgid "``PyFrame_ClearFreeList()``"
msgstr ""

#: whatsnew/3.9.rst:1184
msgid "``PyList_ClearFreeList()``"
msgstr ""

#: whatsnew/3.9.rst:1185
msgid ""
"``PyMethod_ClearFreeList()`` and ``PyCFunction_ClearFreeList()``: the free "
"lists of bound method objects have been removed."
msgstr ""

#: whatsnew/3.9.rst:1187
msgid ""
"``PySet_ClearFreeList()``: the set free list has been removed in Python 3.4."
msgstr ""

#: whatsnew/3.9.rst:1189
msgid "``PyTuple_ClearFreeList()``"
msgstr ""

#: whatsnew/3.9.rst:1190
msgid ""
"``PyUnicode_ClearFreeList()``: the Unicode free list has been removed in "
"Python 3.3."
msgstr ""

#: whatsnew/3.9.rst:1193
msgid ""
"Remove ``_PyUnicode_ClearStaticStrings()`` function. (Contributed by Victor "
"Stinner in :issue:`39465`.)"
msgstr ""

#: whatsnew/3.9.rst:1196
msgid ""
"Remove ``Py_UNICODE_MATCH``. It has been deprecated by :pep:`393`, and "
"broken since Python 3.3. The :c:func:`PyUnicode_Tailmatch` function can be "
"used instead. (Contributed by Inada Naoki in :issue:`36346`.)"
msgstr ""