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# SOME DESCRIPTIVE TITLE.
# Copyright (C) 2001 Python Software Foundation
# This file is distributed under the same license as the Python package.
# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
#
# Translators:
# python-doc bot, 2025
#
#, fuzzy
msgid ""
msgstr ""
"Project-Id-Version: Python 3.15\n"
"Report-Msgid-Bugs-To: \n"
"POT-Creation-Date: 2026-09-11 17:24+0000\n"
"PO-Revision-Date: 2025-09-16 00:02+0000\n"
"Last-Translator: python-doc bot, 2025\n"
"Language-Team: Japanese (https://app.transifex.com/python-doc/teams/5390/"
"ja/)\n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=UTF-8\n"
"Content-Transfer-Encoding: 8bit\n"
"Language: ja\n"
"Plural-Forms: nplurals=1; plural=0;\n"
#: ../../whatsnew/3.9.rst:3
msgid "What's New In Python 3.9"
msgstr "What's New In Python 3.9"
#: ../../whatsnew/3.9.rst:0
msgid "Editor"
msgstr "編集者"
#: ../../whatsnew/3.9.rst:5
msgid "Łukasz Langa"
msgstr "Łukasz Langa"
#: ../../whatsnew/3.9.rst:45
msgid ""
"This article explains the new features in Python 3.9, compared to 3.8. "
"Python 3.9 was released on October 5, 2020. For full details, see the :ref:"
"`changelog <changelog>`."
msgstr ""
#: ../../whatsnew/3.9.rst:51
msgid ":pep:`596` - Python 3.9 Release Schedule"
msgstr ":pep:`596` - Python 3.9 リリーススケジュール"
#: ../../whatsnew/3.9.rst:55
msgid "Summary -- Release highlights"
msgstr "概要 -- リリースハイライト"
#: ../../whatsnew/3.9.rst:60
msgid "New syntax features:"
msgstr "新たな文法機能:"
#: ../../whatsnew/3.9.rst:62
msgid ":pep:`584`, union operators added to ``dict``;"
msgstr ":pep:`584`、 ``dict`` に和集合の演算子が追加されました。"
#: ../../whatsnew/3.9.rst:63
msgid ":pep:`585`, type hinting generics in standard collections;"
msgstr ""
":pep:`585`、標準コレクション型の型ヒントにおける総称型 (generics) の使用。"
#: ../../whatsnew/3.9.rst:64
msgid ":pep:`614`, relaxed grammar restrictions on decorators."
msgstr ":pep:`614`、デコレータの適用における文法的制約の緩和。"
#: ../../whatsnew/3.9.rst:66
msgid "New built-in features:"
msgstr "新たな組み込み機能:"
#: ../../whatsnew/3.9.rst:68
msgid ":pep:`616`, string methods to remove prefixes and suffixes."
msgstr ":pep:`616`、prefixとsuffixを削除する文字列メソッド。"
#: ../../whatsnew/3.9.rst:70
msgid "New features in the standard library:"
msgstr "標準ライブラリの新機能:"
#: ../../whatsnew/3.9.rst:72
msgid ":pep:`593`, flexible function and variable annotations;"
msgstr ""
":pep:`593`、より柔軟な変数・関数アノテーション (訳注: ``Annotated`` の導入)。"
#: ../../whatsnew/3.9.rst:73
msgid ""
":func:`os.pidfd_open` added that allows process management without races and "
"signals."
msgstr ""
":func:`os.pidfd_open` が追加され、レースやシグナルを使わずにプロセス管理がで"
"きるようになりました。"
#: ../../whatsnew/3.9.rst:76
msgid "Interpreter improvements:"
msgstr "インタプリタの改善:"
#: ../../whatsnew/3.9.rst:78
msgid ""
":pep:`573`, fast access to module state from methods of C extension types;"
msgstr ""
#: ../../whatsnew/3.9.rst:80
msgid ":pep:`617`, CPython now uses a new parser based on PEG;"
msgstr ""
":pep:`617`、CPython における PEG (Parser Expression Grammar) ベースの新しい構"
"文解析器の使用。"
#: ../../whatsnew/3.9.rst:81
msgid ""
"a number of Python builtins (range, tuple, set, frozenset, list, dict) are "
"now sped up using :pep:`590` vectorcall;"
msgstr ""
"いくつかのPythonの組み込み型（range, tuple, set, frozenset, list, dict） を :"
"pep:`590` vectorcall を用いて高速化しました。"
#: ../../whatsnew/3.9.rst:83
msgid "garbage collection does not block on resurrected objects;"
msgstr ""
#: ../../whatsnew/3.9.rst:84
msgid ""
"a number of Python modules (:mod:`!_abc`, :mod:`!audioop`, :mod:`!_bz2`, :"
"mod:`!_codecs`, :mod:`!_contextvars`, :mod:`!_crypt`, :mod:`!_functools`, :"
"mod:`!_json`, :mod:`!_locale`, :mod:`math`, :mod:`operator`, :mod:"
"`resource`, :mod:`time`, :mod:`!_weakref`) now use multiphase initialization "
"as defined by PEP 489;"
msgstr ""
#: ../../whatsnew/3.9.rst:89
msgid ""
"a number of standard library modules (:mod:`!audioop`, :mod:`ast`, :mod:"
"`grp`, :mod:`!_hashlib`, :mod:`pwd`, :mod:`!_posixsubprocess`, :mod:"
"`random`, :mod:`select`, :mod:`struct`, :mod:`termios`, :mod:`zlib`) are now "
"using the stable ABI defined by PEP 384."
msgstr ""
#: ../../whatsnew/3.9.rst:94
msgid "New library modules:"
msgstr "新たなライブラリモジュール:"
#: ../../whatsnew/3.9.rst:96
msgid ""
":pep:`615`, the IANA Time Zone Database is now present in the standard "
"library in the :mod:`zoneinfo` module;"
msgstr ""
":pep:`615`、IANAのTime Zone Databaseが標準ライブラリの :mod:`zoneinfo` モ"
"ジュールで提供されるようになりました。"
#: ../../whatsnew/3.9.rst:98
msgid ""
"an implementation of a topological sort of a graph is now provided in the "
"new :mod:`graphlib` module."
msgstr ""
#: ../../whatsnew/3.9.rst:101
msgid "Release process changes:"
msgstr "リリースプロセスの変更:"
#: ../../whatsnew/3.9.rst:103
msgid ":pep:`602`, CPython adopts an annual release cycle."
msgstr ":pep:`602`、CPythonは年次のリリースサイクルを採用します。"
#: ../../whatsnew/3.9.rst:107
msgid "You should check for DeprecationWarning in your code"
msgstr "コード中の非推奨警告(DeprecationWarning)をチェックして下さい"
#: ../../whatsnew/3.9.rst:109
msgid ""
"When Python 2.7 was still supported, a lot of functionality in Python 3 was "
"kept for backward compatibility with Python 2.7. With the end of Python 2 "
"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 ""
"Python 2.7がまだサポートされていた期間、Python 3の多くの機能はPython 2.7との"
"後方互換性を保っていました。Python 2サポートの終了とともに、この後方互換性レ"
"イヤは除去されたか、間もなく除去されます。ここ数年で、それらの多くは警告 :"
"exc:`DeprecationWarning` を出すようになりました。例えば、2012年にリリースされ"
"たPython 3.3以降、``collections.abc.Mapping`` の代りに ``collections."
"Mapping`` を使うと、警告 :exc:`DeprecationWarning` が出ます。"
#: ../../whatsnew/3.9.rst:117
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 ""
"警告 :exc:`DeprecationWarning` および :exc:`PendingDeprecationWarning` を確認"
"するために、 :option:`-W` ``default`` コマンドラインオプションを付けて、あな"
"たのアプリケーションをテストして下さい。あるいは、:option:`-W` ``error`` で警"
"告をエラーとして扱うこともできます。サードパーティによるコードの警告を無視す"
"るには、:ref:`Warnings Filter <warning-filter>` を使うことができます。"
#: ../../whatsnew/3.9.rst:122
msgid ""
"Python 3.9 is the last version providing those Python 2 backward "
"compatibility layers, 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 ""
"Python 3.9は、Python 2後方互換性レイヤを提供する最後のバージョンです。このレ"
"イヤは、Pythonプロジェクトの保守管理者に、Python 2サポートを止めてPython 3.9"
"サポートを追加する時間的な余裕を与えるためのものです。"
#: ../../whatsnew/3.9.rst:126
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 ""
#: ../../whatsnew/3.9.rst:131
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 ""
"より一般的には、あなたのコードが次のバージョンのPythonと互換性を保てるよう、:"
"ref:`Python Development Mode <devmode>` でテストするようにしてください。"
#: ../../whatsnew/3.9.rst:135
msgid ""
"Note: a number of pre-existing deprecations were removed in this version of "
"Python as well. Consult the :ref:`removed-in-python-39` section."
msgstr ""
"注釈: Pythonのこのバージョンで、既存の多くの非推奨機能が削除されました。詳し"
"くは :ref:`removed-in-python-39` を見て下さい。"
#: ../../whatsnew/3.9.rst:140 ../../whatsnew/3.9.rst:1272
msgid "New Features"
msgstr "新しい機能"
#: ../../whatsnew/3.9.rst:143
msgid "Dictionary Merge & Update Operators"
msgstr "辞書のマージと更新演算子"
#: ../../whatsnew/3.9.rst:145
msgid ""
"Merge (``|``) and update (``|=``) operators have been added to the built-in :"
"class:`dict` class. Those complement the existing ``dict.update`` and "
"``{**d1, **d2}`` methods of merging dictionaries."
msgstr ""
"組み込みの :class:`dict` クラスにマージ(``|``)と更新(``|=``)演算子が追加され"
"ました。この演算子は、辞書をマージする既存の方法 ``dict.update`` と ``{**d1, "
"**d2}`` を補完します。"
#: ../../whatsnew/3.9.rst:149 ../../whatsnew/3.9.rst:282
msgid "Example::"
msgstr "以下はプログラム例です::"
#: ../../whatsnew/3.9.rst:151
msgid ""
">>> x = {\"key1\": \"value1 from x\", \"key2\": \"value2 from x\"}\n"
">>> y = {\"key2\": \"value2 from y\", \"key3\": \"value3 from y\"}\n"
">>> x | y\n"
"{'key1': 'value1 from x', 'key2': 'value2 from y', 'key3': 'value3 from y'}\n"
">>> y | x\n"
"{'key2': 'value2 from x', 'key3': 'value3 from y', 'key1': 'value1 from x'}"
msgstr ""
#: ../../whatsnew/3.9.rst:158
msgid ""
"See :pep:`584` for a full description. (Contributed by Brandt Bucher in :"
"issue:`36144`.)"
msgstr ""
"詳細は :pep:`584` を参照してください。(Brandt Bucher の貢献による :issue:"
"`36144`)"
#: ../../whatsnew/3.9.rst:162
msgid "New String Methods to Remove Prefixes and Suffixes"
msgstr "prefixとsuffixを削除する新しい文字列メソッド"
#: ../../whatsnew/3.9.rst:164
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 ""
"文字列から不要な prefix や suffix を簡単に削除する :meth:`str."
"removeprefix(prefix)<str.removeprefix>` と :meth:`str."
"removesuffix(suffix)<str.removesuffix>` が追加されました。 ``bytes``, "
"``bytearray``, ``collections.UserString`` にも同様のメソッドが追加されまし"
"た。詳細は :pep:`616` を参照してください。(Dennis Sweeney の貢献による :"
"issue:`39939`)"
#: ../../whatsnew/3.9.rst:172
msgid "Type Hinting Generics in Standard Collections"
msgstr "標準コレクション型の型ヒントにおける総称型 (generics) の使用"
#: ../../whatsnew/3.9.rst:174
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 ""
"型アノテーションで、``typing`` モジュールからインポートしていた大文字の型"
"（``List`` や ``Dict``）の代わりに、総称型（generics）で ``list`` や "
"``dict`` といった標準コレクション型が使用できるようになりました。いくつかの他"
"の標準ライブラリの型（``queue.Queue`` など）も総称型として使用できます。"
#: ../../whatsnew/3.9.rst:180 ../../whatsnew/3.9.rst:1159
msgid "Example:"
msgstr "例:"
#: ../../whatsnew/3.9.rst:182
msgid ""
"def greet_all(names: list[str]) -> None:\n"
" for name in names:\n"
" print(\"Hello\", name)"
msgstr ""
#: ../../whatsnew/3.9.rst:188
msgid ""
"See :pep:`585` for more details. (Contributed by Guido van Rossum, Ethan "
"Smith, and Batuhan Taşkaya in :issue:`39481`.)"
msgstr ""
"詳細は :pep:`585` を参照してください。(Guido van Rossum、Ethan Smith、"
"Batuhan Taşkaya の貢献による :issue:`39481`)"
#: ../../whatsnew/3.9.rst:192
msgid "New Parser"
msgstr "新しいパーサー"
#: ../../whatsnew/3.9.rst:194
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は、 `LL(1) <https://en.wikipedia.org/wiki/LL_parser>`_ に代えて "
"`PEG <https://en.wikipedia.org/wiki/Parsing_expression_grammar>`_ に基づく新"
"しいパーサーを採用しています。新しいパーサーのパフォーマンスは古いパーサーと"
"ほぼ同程度ですが、新しい言語の機能を設計する際に、PEGの形式主義はより柔軟で"
"す。我々は、この柔軟性をPython 3.10以降に使い始める予定です。"
#: ../../whatsnew/3.9.rst:202
msgid ""
"The :mod:`ast` module uses the new parser and produces the same AST as the "
"old parser."
msgstr ""
":mod:`ast` モジュールは、新しいパーサーを使って古いパーサーと同じASTを生成し"
"ます。"
#: ../../whatsnew/3.9.rst:205
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 ""
#: ../../whatsnew/3.9.rst:211
msgid ""
"See :pep:`617` for more details. (Contributed by Guido van Rossum, Pablo "
"Galindo and Lysandros Nikolaou in :issue:`40334`.)"
msgstr ""
"詳細は :pep:`617` を参照してください。(Guido van Rossum,、Pablo Galindo、およ"
"びLysandros Nikolaouの貢献による :issue:`40334`)"
#: ../../whatsnew/3.9.rst:216
msgid "Other Language Changes"
msgstr "その他の言語変更"
#: ../../whatsnew/3.9.rst:218
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:223
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:231
msgid ""
"In the :ref:`Python Development Mode <devmode>` and in :ref:`debug build "
"<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:236
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:241
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:246
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:250
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:256
msgid ""
"Parallel running of :meth:`~agen.aclose` / :meth:`~agen.asend` / :meth:"
"`~agen.athrow` is now prohibited, and ``ag_running`` now reflects the actual "
"running status of the async generator. (Contributed by Yury Selivanov in :"
"issue:`30773`.)"
msgstr ""
#: ../../whatsnew/3.9.rst:261
msgid ""
"Unexpected errors in calling the ``__iter__`` method are no longer masked by "
"``TypeError`` in the :keyword:`in` operator and functions :func:`~operator."
"contains`, :func:`~operator.indexOf` and :func:`~operator.countOf` of the :"
"mod:`operator` module. (Contributed by Serhiy Storchaka in :issue:`40824`.)"
msgstr ""
#: ../../whatsnew/3.9.rst:267
msgid ""
"Unparenthesized lambda expressions can no longer be the expression part in "
"an ``if`` clause in comprehensions and generator expressions. See :issue:"
"`41848` and :issue:`43755` for details."
msgstr ""
#: ../../whatsnew/3.9.rst:273
msgid "New Modules"
msgstr "新たなモジュール"
#: ../../whatsnew/3.9.rst:276
msgid "zoneinfo"
msgstr ""
#: ../../whatsnew/3.9.rst:278
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 ""
":mod:`zoneinfo` モジュールにより標準ライブラリにIANAのタイムゾーンデータベー"
"スへのサポートを導入されます。:class:`zoneinfo.ZoneInfo` という、システムのタ"
"イムゾーンデータを背景とした具体的な :class:`datetime.tzinfo` の実装が追加さ"
"れます。"
#: ../../whatsnew/3.9.rst:284
msgid ""
">>> from zoneinfo import ZoneInfo\n"
">>> import datetime as dt\n"
"\n"
">>> # Daylight saving time\n"
">>> when = dt.datetime(2020, 10, 31, 12, tzinfo=ZoneInfo(\"America/"
"Los_Angeles\"))\n"
">>> print(when)\n"
"2020-10-31 12:00:00-07:00\n"
">>> when.tzname()\n"
"'PDT'\n"
"\n"
">>> # Standard time\n"
">>> when += dt.timedelta(days=7)\n"
">>> print(when)\n"
"2020-11-07 12:00:00-08:00\n"
">>> print(when.tzname())\n"
"PST"
msgstr ""
#: ../../whatsnew/3.9.rst:302
msgid ""
"As a fall-back source of data for platforms that don't ship the IANA "
"database, the :pypi:`tzdata` module was released as a first-party package -- "
"distributed via PyPI and maintained by the CPython core team."
msgstr ""
#: ../../whatsnew/3.9.rst:308
msgid ""
":pep:`615` -- Support for the IANA Time Zone Database in the Standard Library"
msgstr ""
#: ../../whatsnew/3.9.rst:309
msgid "PEP written and implemented by Paul Ganssle"
msgstr "PEP作成と実装は Paul Ganssle による。"
#: ../../whatsnew/3.9.rst:313
msgid "graphlib"
msgstr "graphlib"
#: ../../whatsnew/3.9.rst:315
msgid ""
"A new module, :mod:`graphlib`, was added 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:322
msgid "Improved Modules"
msgstr "改良されたモジュール"
#: ../../whatsnew/3.9.rst:325
msgid "ast"
msgstr "ast"
#: ../../whatsnew/3.9.rst:327
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:331
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:336
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:340
msgid "asyncio"
msgstr "asyncio"
#: ../../whatsnew/3.9.rst:342
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 ""
"セキュリティ上の重大な懸念により、:meth:`asyncio.loop."
"create_datagram_endpoint` での *reuse_address* 引数は無効になりました。これは"
"ソケットオプション `SO_REUSEADDR`` のUDP における挙動が原因です。詳しくは、"
"``loop.create_datagram_endpoint()`` のドキュメントを参照してください。(Kyle "
"Stanley, Antoine Pitrou, Yury Selivanov による貢献 :issue:`37228`)"
#: ../../whatsnew/3.9.rst:349
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:355
msgid ""
"Added :class:`!asyncio.PidfdChildWatcher`, a Linux-specific child watcher "
"implementation that polls process file descriptors. (:issue:`38692`)"
msgstr ""
#: ../../whatsnew/3.9.rst:358
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:364
msgid ""
"When cancelling the task due to a timeout, :meth:`asyncio.wait_for` will now "
"wait until the cancellation is complete also in the case when *timeout* is "
"<= 0, like it does with positive timeouts. (Contributed by Elvis "
"Pranskevichus in :issue:`32751`.)"
msgstr ""
#: ../../whatsnew/3.9.rst:369
msgid ""
":mod:`asyncio` now raises :exc:`TypeError` when calling incompatible methods "
"with an :class:`ssl.SSLSocket` socket. (Contributed by Ido Michael in :issue:"
"`37404`.)"
msgstr ""
#: ../../whatsnew/3.9.rst:374
msgid "compileall"
msgstr "compileall"
#: ../../whatsnew/3.9.rst:376
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:379
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:384
msgid "concurrent.futures"
msgstr "concurrent.futures"
#: ../../whatsnew/3.9.rst:386
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:392
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:397
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:403
msgid "curses"
msgstr "curses"
#: ../../whatsnew/3.9.rst:405
msgid ""
"Added :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 ""
":func:`curses.get_escdelay`, :func:`curses.set_escdelay`, :func:`curses."
"get_tabsize`, :func:`curses.set_tabsize` の関数が追加されました。(Anthony "
"Sottileによる :issue:`38312` でのコントリビュート。)"
#: ../../whatsnew/3.9.rst:410
msgid "datetime"
msgstr "datetime"
#: ../../whatsnew/3.9.rst:411
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 Donghee Na in :issue:`24416`.)"
msgstr ""
#: ../../whatsnew/3.9.rst:417
msgid "distutils"
msgstr "distutils"
#: ../../whatsnew/3.9.rst:419
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:424
msgid "fcntl"
msgstr "fcntl"
#: ../../whatsnew/3.9.rst:426
msgid ""
"Added constants :const:`!fcntl.F_OFD_GETLK`, :const:`!fcntl.F_OFD_SETLK` "
"and :const:`!fcntl.F_OFD_SETLKW`. (Contributed by Donghee Na in :issue:"
"`38602`.)"
msgstr ""
#: ../../whatsnew/3.9.rst:431
msgid "ftplib"
msgstr "ftplib"
#: ../../whatsnew/3.9.rst:433
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 Donghee Na in :issue:"
"`39259`.)"
msgstr ""
#: ../../whatsnew/3.9.rst:438
msgid "gc"
msgstr "gc"
#: ../../whatsnew/3.9.rst:440
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:445
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:450
msgid "hashlib"
msgstr "hashlib"
#: ../../whatsnew/3.9.rst:452
msgid ""
"The :mod:`hashlib` module can now use SHA3 hashes and SHAKE XOF from OpenSSL "
"when available. (Contributed by Christian Heimes in :issue:`37630`.)"
msgstr ""
#: ../../whatsnew/3.9.rst:456
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:464
msgid "http"
msgstr "http"
#: ../../whatsnew/3.9.rst:466
msgid ""
"HTTP status codes ``103 EARLY_HINTS``, ``418 IM_A_TEAPOT`` and ``425 "
"TOO_EARLY`` are added to :class:`http.HTTPStatus`. (Contributed by Donghee "
"Na in :issue:`39509` and Ross Rhodes in :issue:`39507`.)"
msgstr ""
#: ../../whatsnew/3.9.rst:470
msgid "IDLE and idlelib"
msgstr "IDLE と idelelib"
#: ../../whatsnew/3.9.rst:472
msgid ""
"Added option to toggle cursor blink off. (Contributed by Zackery Spytz in :"
"issue:`4603`.)"
msgstr ""
#: ../../whatsnew/3.9.rst:475
msgid ""
"Escape key now closes IDLE completion windows. (Contributed by Johnny "
"Najera in :issue:`38944`.)"
msgstr ""
#: ../../whatsnew/3.9.rst:478
msgid ""
"Added keywords to module name completion list. (Contributed by Terry J. "
"Reedy in :issue:`37765`.)"
msgstr ""
#: ../../whatsnew/3.9.rst:481
msgid "New in 3.9 maintenance releases"
msgstr ""
#: ../../whatsnew/3.9.rst:483
msgid ""
"Make IDLE invoke :func:`sys.excepthook` (when started without '-n'). User "
"hooks were previously ignored. (Contributed by Ken Hilton in :issue:"
"`43008`.)"
msgstr ""
#: ../../whatsnew/3.9.rst:487
msgid "The changes above have been backported to 3.8 maintenance releases."
msgstr ""
#: ../../whatsnew/3.9.rst:489
msgid ""
"Rearrange the settings dialog. Split the General tab into Windows and Shell/"
"Ed tabs. Move help sources, which extend the Help menu, to the Extensions "
"tab. Make space for new options and shorten the dialog. The latter makes "
"the dialog better fit small screens. (Contributed by Terry Jan Reedy in :"
"issue:`40468`.) Move the indent space setting from the Font tab to the new "
"Windows tab. (Contributed by Mark Roseman and Terry Jan Reedy in :issue:"
"`33962`.)"
msgstr ""
#: ../../whatsnew/3.9.rst:497
msgid ""
"Apply syntax highlighting to ``.pyi`` files. (Contributed by Alex Waygood "
"and Terry Jan Reedy in :issue:`45447`.)"
msgstr ""
#: ../../whatsnew/3.9.rst:501
msgid "imaplib"
msgstr "imaplib"
#: ../../whatsnew/3.9.rst:503
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 Donghee Na in :"
"issue:`38615`.)"
msgstr ""
#: ../../whatsnew/3.9.rst:510
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 "
"Donghee Na in :issue:`40375`.)"
msgstr ""
#: ../../whatsnew/3.9.rst:518
msgid "importlib"
msgstr "importlib"
#: ../../whatsnew/3.9.rst:520
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:525
msgid ""
"Import loaders which publish immutable module objects can now publish "
"immutable packages in addition to individual modules. (Contributed by Dino "
"Viehland in :issue:`39336`.)"
msgstr ""
#: ../../whatsnew/3.9.rst:529
msgid ""
"Added :func:`importlib.resources.files` function with support for "
"subdirectories in package data, matching backport in ``importlib_resources`` "
"version 1.5. (Contributed by Jason R. Coombs in :issue:`39791`.)"
msgstr ""
#: ../../whatsnew/3.9.rst:534
msgid ""
"Refreshed ``importlib.metadata`` from ``importlib_metadata`` version 1.6.1."
msgstr ""
#: ../../whatsnew/3.9.rst:537
msgid "inspect"
msgstr "inspect"
#: ../../whatsnew/3.9.rst:539
msgid ""
":attr:`inspect.BoundArguments.arguments` is changed from ``OrderedDict`` to "
"regular dict. (Contributed by Inada Naoki in :issue:`36350` and :issue:"
"`39775`.)"
msgstr ""
":attr:`inspect.BoundArguments.arguments` は ``OrderedDict`` から標準のdictに"
"変更されました。(Inada Naoki の貢献による :issue:`36350`, :issue:`39775`)"
#: ../../whatsnew/3.9.rst:543
msgid "ipaddress"
msgstr "ipaddress"
#: ../../whatsnew/3.9.rst:545
msgid ""
":mod:`ipaddress` now supports IPv6 Scoped Addresses (IPv6 address with "
"suffix ``%<scope_id>``)."
msgstr ""
#: ../../whatsnew/3.9.rst:547
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:551
msgid ""
"Starting with Python 3.9.5 the :mod:`ipaddress` module no longer accepts any "
"leading zeros in IPv4 address strings. (Contributed by Christian Heimes in :"
"issue:`36384`)."
msgstr ""
#: ../../whatsnew/3.9.rst:556
msgid "math"
msgstr "math"
#: ../../whatsnew/3.9.rst:558
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:562
msgid ""
"Added :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:566
msgid ""
"Added :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:570
msgid ""
"Added :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:575
msgid "multiprocessing"
msgstr "multiprocessing"
#: ../../whatsnew/3.9.rst:577
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:583
msgid "nntplib"
msgstr "nntplib"
#: ../../whatsnew/3.9.rst:585
msgid ""
":class:`!NNTP` and :class:`!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 Donghee Na in :issue:`39259`.)"
msgstr ""
#: ../../whatsnew/3.9.rst:590
msgid "os"
msgstr "os"
#: ../../whatsnew/3.9.rst:592
msgid ""
"Added :const:`~os.CLD_KILLED` and :const:`~os.CLD_STOPPED` for :attr:`!"
"si_code`. (Contributed by Donghee Na in :issue:`38493`.)"
msgstr ""
#: ../../whatsnew/3.9.rst:595
msgid ""
"Exposed the Linux-specific :func:`os.pidfd_open` (:issue:`38692`) and :const:"
"`os.P_PIDFD` (:issue:`38713`) for process management with file descriptors."
msgstr ""
#: ../../whatsnew/3.9.rst:599
msgid ""
"The :func:`os.unsetenv` function is now also available on Windows. "
"(Contributed by Victor Stinner in :issue:`39413`.)"
msgstr ""
":func:`os.unsetenv` 関数が、Windowsでも使えるようになりました。(:issue:"
"`39413` におけるVictor Stinnerの貢献による)"
#: ../../whatsnew/3.9.rst:602
msgid ""
"The :func:`os.putenv` and :func:`os.unsetenv` functions are now always "
"available. (Contributed by Victor Stinner in :issue:`39395`.)"
msgstr ""
":func:`os.putenv` と :func:`os.unsetenv` 関数が、常に利用できるようになりまし"
"た。(:issue:`39395` におけるVictor Stinnerの貢献による)"