mirror of https://github.com/python/cpython
123 lines
4.9 KiB
ReStructuredText
123 lines
4.9 KiB
ReStructuredText
Pending removal in Python 3.14
|
|
------------------------------
|
|
|
|
* The import system:
|
|
|
|
* Setting :attr:`~module.__loader__` on a module while
|
|
failing to set :attr:`__spec__.loader <importlib.machinery.ModuleSpec.loader>`
|
|
is deprecated. In Python 3.14, :attr:`!__loader__` will cease to be set or
|
|
taken into consideration by the import system or the standard library.
|
|
|
|
* :mod:`argparse`: The *type*, *choices*, and *metavar* parameters
|
|
of :class:`!argparse.BooleanOptionalAction` are deprecated
|
|
and will be removed in 3.14.
|
|
(Contributed by Nikita Sobolev in :gh:`92248`.)
|
|
|
|
* :mod:`ast`: The following features have been deprecated in documentation
|
|
since Python 3.8, now cause a :exc:`DeprecationWarning` to be emitted at
|
|
runtime when they are accessed or used, and will be removed in Python 3.14:
|
|
|
|
* :class:`!ast.Num`
|
|
* :class:`!ast.Str`
|
|
* :class:`!ast.Bytes`
|
|
* :class:`!ast.NameConstant`
|
|
* :class:`!ast.Ellipsis`
|
|
|
|
Use :class:`ast.Constant` instead.
|
|
(Contributed by Serhiy Storchaka in :gh:`90953`.)
|
|
|
|
* :mod:`asyncio`:
|
|
|
|
* The child watcher classes :class:`!asyncio.MultiLoopChildWatcher`,
|
|
:class:`!asyncio.FastChildWatcher`, :class:`!asyncio.AbstractChildWatcher`
|
|
and :class:`!asyncio.SafeChildWatcher` are deprecated and
|
|
will be removed in Python 3.14.
|
|
(Contributed by Kumar Aditya in :gh:`94597`.)
|
|
|
|
* :func:`!asyncio.set_child_watcher`, :func:`!asyncio.get_child_watcher`,
|
|
:meth:`!asyncio.AbstractEventLoopPolicy.set_child_watcher` and
|
|
:meth:`!asyncio.AbstractEventLoopPolicy.get_child_watcher` are deprecated
|
|
and will be removed in Python 3.14.
|
|
(Contributed by Kumar Aditya in :gh:`94597`.)
|
|
|
|
* The :meth:`~asyncio.get_event_loop` method of the
|
|
default event loop policy now emits a :exc:`DeprecationWarning` if there
|
|
is no current event loop set and it decides to create one.
|
|
(Contributed by Serhiy Storchaka and Guido van Rossum in :gh:`100160`.)
|
|
|
|
* :mod:`collections.abc`: Deprecated :class:`!collections.abc.ByteString`.
|
|
Prefer :class:`!Sequence` or :class:`~collections.abc.Buffer`.
|
|
For use in typing, prefer a union, like ``bytes | bytearray``,
|
|
or :class:`collections.abc.Buffer`.
|
|
(Contributed by Shantanu Jain in :gh:`91896`.)
|
|
|
|
* :mod:`email`: Deprecated the *isdst* parameter in :func:`email.utils.localtime`.
|
|
(Contributed by Alan Williams in :gh:`72346`.)
|
|
|
|
* :mod:`importlib.abc` deprecated classes:
|
|
|
|
* :class:`!importlib.abc.ResourceReader`
|
|
* :class:`!importlib.abc.Traversable`
|
|
* :class:`!importlib.abc.TraversableResources`
|
|
|
|
Use :mod:`importlib.resources.abc` classes instead:
|
|
|
|
* :class:`importlib.resources.abc.Traversable`
|
|
* :class:`importlib.resources.abc.TraversableResources`
|
|
|
|
(Contributed by Jason R. Coombs and Hugo van Kemenade in :gh:`93963`.)
|
|
|
|
* :mod:`itertools` had undocumented, inefficient, historically buggy,
|
|
and inconsistent support for copy, deepcopy, and pickle operations.
|
|
This will be removed in 3.14 for a significant reduction in code
|
|
volume and maintenance burden.
|
|
(Contributed by Raymond Hettinger in :gh:`101588`.)
|
|
|
|
* :mod:`multiprocessing`: The default start method will change to a safer one on
|
|
Linux, BSDs, and other non-macOS POSIX platforms where ``'fork'`` is currently
|
|
the default (:gh:`84559`). Adding a runtime warning about this was deemed too
|
|
disruptive as the majority of code is not expected to care. Use the
|
|
:func:`~multiprocessing.get_context` or
|
|
:func:`~multiprocessing.set_start_method` APIs to explicitly specify when
|
|
your code *requires* ``'fork'``. See :ref:`multiprocessing-start-methods`.
|
|
|
|
* :mod:`pathlib`: :meth:`~pathlib.PurePath.is_relative_to` and
|
|
:meth:`~pathlib.PurePath.relative_to`: passing additional arguments is
|
|
deprecated.
|
|
|
|
* :mod:`pkgutil`: :func:`~pkgutil.find_loader` and :func:`~pkgutil.get_loader`
|
|
now raise :exc:`DeprecationWarning`;
|
|
use :func:`importlib.util.find_spec` instead.
|
|
(Contributed by Nikita Sobolev in :gh:`97850`.)
|
|
|
|
* :mod:`pty`:
|
|
|
|
* ``master_open()``: use :func:`pty.openpty`.
|
|
* ``slave_open()``: use :func:`pty.openpty`.
|
|
|
|
* :mod:`sqlite3`:
|
|
|
|
* :data:`!version` and :data:`!version_info`.
|
|
|
|
* :meth:`~sqlite3.Cursor.execute` and :meth:`~sqlite3.Cursor.executemany`
|
|
if :ref:`named placeholders <sqlite3-placeholders>` are used and
|
|
*parameters* is a sequence instead of a :class:`dict`.
|
|
|
|
* date and datetime adapter, date and timestamp converter:
|
|
see the :mod:`sqlite3` documentation for suggested replacement recipes.
|
|
|
|
* :class:`types.CodeType`: Accessing :attr:`~codeobject.co_lnotab` was
|
|
deprecated in :pep:`626`
|
|
since 3.10 and was planned to be removed in 3.12,
|
|
but it only got a proper :exc:`DeprecationWarning` in 3.12.
|
|
May be removed in 3.14.
|
|
(Contributed by Nikita Sobolev in :gh:`101866`.)
|
|
|
|
* :mod:`typing`: :class:`!typing.ByteString`, deprecated since Python 3.9,
|
|
now causes a :exc:`DeprecationWarning` to be emitted when it is used.
|
|
|
|
* :mod:`urllib`:
|
|
:class:`!urllib.parse.Quoter` is deprecated: it was not intended to be a
|
|
public API.
|
|
(Contributed by Gregory P. Smith in :gh:`88168`.)
|