mirror of https://github.com/python/cpython
gh-109975: Copyedit "What's New in Python 3.13" (#114401)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
This commit is contained in:
Hugo van Kemenade
GitHub
parent
809eed4805
commit
4287e8608b
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@ -146,14 +146,6 @@ New Modules
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Improved Modules
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================
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ast
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---
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* :func:`ast.parse` now accepts an optional argument ``optimize``
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which is passed on to the :func:`compile` built-in. This makes it
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possible to obtain an optimized ``AST``.
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(Contributed by Irit Katriel in :gh:`108113`).
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array
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-----
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@ -161,6 +153,14 @@ array
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It can be used instead of ``'u'`` type code, which is deprecated.
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(Contributed by Inada Naoki in :gh:`80480`.)
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ast
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---
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* :func:`ast.parse` now accepts an optional argument ``optimize``
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which is passed on to the :func:`compile` built-in. This makes it
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possible to obtain an optimized ``AST``.
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(Contributed by Irit Katriel in :gh:`108113`.)
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asyncio
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-------
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@ -180,6 +180,13 @@ copy
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any user classes which define the :meth:`!__replace__` method.
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(Contributed by Serhiy Storchaka in :gh:`108751`.)
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dbm
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---
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* Add :meth:`dbm.gnu.gdbm.clear` and :meth:`dbm.ndbm.ndbm.clear` methods that remove all items
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from the database.
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(Contributed by Donghee Na in :gh:`107122`.)
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dis
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---
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@ -189,13 +196,6 @@ dis
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the ``show_offsets`` parameter.
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(Contributed by Irit Katriel in :gh:`112137`.)
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dbm
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---
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* Add :meth:`dbm.gnu.gdbm.clear` and :meth:`dbm.ndbm.ndbm.clear` methods that remove all items
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from the database.
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(Contributed by Donghee Na in :gh:`107122`.)
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doctest
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-------
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@ -213,7 +213,7 @@ email
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parameter to these two functions: use ``strict=False`` to get the old
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behavior, accept malformed inputs.
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``getattr(email.utils, 'supports_strict_parsing', False)`` can be use to
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check if the *strict* paramater is available.
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check if the *strict* parameter is available.
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(Contributed by Thomas Dwyer and Victor Stinner for :gh:`102988` to improve
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the CVE-2023-27043 fix.)
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@ -223,7 +223,7 @@ fractions
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* Formatting for objects of type :class:`fractions.Fraction` now supports
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the standard format specification mini-language rules for fill, alignment,
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sign handling, minimum width and grouping. (Contributed by Mark Dickinson
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in :gh:`111320`)
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in :gh:`111320`.)
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glob
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----
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@ -297,17 +297,17 @@ os
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the new environment variable :envvar:`PYTHON_CPU_COUNT` or the new command-line option
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:option:`-X cpu_count <-X>`. This option is useful for users who need to limit
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CPU resources of a container system without having to modify the container (application code).
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(Contributed by Donghee Na in :gh:`109595`)
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(Contributed by Donghee Na in :gh:`109595`.)
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* Add support of :func:`os.lchmod` and the *follow_symlinks* argument
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in :func:`os.chmod` on Windows.
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Note that the default value of *follow_symlinks* in :func:`!os.lchmod` is
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``False`` on Windows.
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(Contributed by Serhiy Storchaka in :gh:`59616`)
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(Contributed by Serhiy Storchaka in :gh:`59616`.)
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* Add support of :func:`os.fchmod` and a file descriptor
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in :func:`os.chmod` on Windows.
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(Contributed by Serhiy Storchaka in :gh:`113191`)
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(Contributed by Serhiy Storchaka in :gh:`113191`.)
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* :func:`os.posix_spawn` now accepts ``env=None``, which makes the newly spawned
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process use the current process environment.
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@ -357,7 +357,7 @@ pdb
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the new ``exceptions [exc_number]`` command for Pdb. (Contributed by Matthias
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Bussonnier in :gh:`106676`.)
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* Expressions/Statements whose prefix is a pdb command are now correctly
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* Expressions/statements whose prefix is a pdb command are now correctly
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identified and executed.
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(Contributed by Tian Gao in :gh:`108464`.)
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@ -487,34 +487,69 @@ Deprecated
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Replace ``ctypes.ARRAY(item_type, size)`` with ``item_type * size``.
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(Contributed by Victor Stinner in :gh:`105733`.)
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* :mod:`decimal`: Deprecate non-standard format specifier "N" for
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:class:`decimal.Decimal`.
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It was not documented and only supported in the C implementation.
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(Contributed by Serhiy Storchaka in :gh:`89902`.)
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* :mod:`dis`: The ``dis.HAVE_ARGUMENT`` separator is deprecated. Check
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membership in :data:`~dis.hasarg` instead.
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(Contributed by Irit Katriel in :gh:`109319`.)
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* :mod:`getopt` and :mod:`optparse` modules: They are now
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:term:`soft deprecated`: the :mod:`argparse` should be used for new projects.
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:term:`soft deprecated`: the :mod:`argparse` module should be used for new projects.
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Previously, the :mod:`optparse` module was already deprecated, its removal
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was not scheduled, and no warnings was emitted: so there is no change in
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practice.
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(Contributed by Victor Stinner in :gh:`106535`.)
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* :mod:`gettext`: Emit deprecation warning for non-integer numbers in
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:mod:`gettext` functions and methods that consider plural forms even if the
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translation was not found.
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(Contributed by Serhiy Storchaka in :gh:`88434`.)
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* :mod:`http.server`: :class:`http.server.CGIHTTPRequestHandler` now emits a
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:exc:`DeprecationWarning` as it will be removed in 3.15. Process based CGI
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http servers have been out of favor for a very long time. This code was
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:exc:`DeprecationWarning` as it will be removed in 3.15. Process-based CGI
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HTTP servers have been out of favor for a very long time. This code was
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outdated, unmaintained, and rarely used. It has a high potential for both
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security and functionality bugs. This includes removal of the ``--cgi``
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flag to the ``python -m http.server`` command line in 3.15.
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* :mod:`pathlib`:
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:meth:`pathlib.PurePath.is_reserved` is deprecated and scheduled for
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removal in Python 3.15. Use :func:`os.path.isreserved` to detect reserved
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paths on Windows.
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* :meth:`pathlib.PurePath.is_reserved` is deprecated and scheduled for
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removal in Python 3.15. Use :func:`os.path.isreserved` to detect reserved
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paths on Windows.
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* :mod:`pydoc`: Deprecate undocumented :func:`!pydoc.ispackage` function.
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(Contributed by Zackery Spytz in :gh:`64020`.)
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* :mod:`sqlite3`: Passing more than one positional argument to
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:func:`sqlite3.connect` and the :class:`sqlite3.Connection` constructor is
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deprecated. The remaining parameters will become keyword-only in Python 3.15.
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Deprecate passing name, number of arguments, and the callable as keyword
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arguments for the following :class:`sqlite3.Connection` APIs:
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* :meth:`~sqlite3.Connection.create_function`
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* :meth:`~sqlite3.Connection.create_aggregate`
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Deprecate passing the callback callable by keyword for the following
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:class:`sqlite3.Connection` APIs:
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* :meth:`~sqlite3.Connection.set_authorizer`
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* :meth:`~sqlite3.Connection.set_progress_handler`
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* :meth:`~sqlite3.Connection.set_trace_callback`
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The affected parameters will become positional-only in Python 3.15.
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(Contributed by Erlend E. Aasland in :gh:`107948` and :gh:`108278`.)
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* :mod:`sys`: :func:`sys._enablelegacywindowsfsencoding` function.
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Replace it with :envvar:`PYTHONLEGACYWINDOWSFSENCODING` environment variable.
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Replace it with the :envvar:`PYTHONLEGACYWINDOWSFSENCODING` environment variable.
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(Contributed by Inada Naoki in :gh:`73427`.)
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* :mod:`traceback`:
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* The field *exc_type* of :class:`traceback.TracebackException` is
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deprecated. Use *exc_type_str* instead.
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* :mod:`traceback`: The field *exc_type* of :class:`traceback.TracebackException`
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is deprecated. Use *exc_type_str* instead.
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* :mod:`typing`:
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@ -550,39 +585,6 @@ Deprecated
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They will be removed in Python 3.15.
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(Contributed by Victor Stinner in :gh:`105096`.)
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* Passing more than one positional argument to :func:`sqlite3.connect` and the
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:class:`sqlite3.Connection` constructor is deprecated. The remaining
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parameters will become keyword-only in Python 3.15.
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Deprecate passing name, number of arguments, and the callable as keyword
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arguments, for the following :class:`sqlite3.Connection` APIs:
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* :meth:`~sqlite3.Connection.create_function`
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* :meth:`~sqlite3.Connection.create_aggregate`
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Deprecate passing the callback callable by keyword for the following
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:class:`sqlite3.Connection` APIs:
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* :meth:`~sqlite3.Connection.set_authorizer`
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* :meth:`~sqlite3.Connection.set_progress_handler`
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* :meth:`~sqlite3.Connection.set_trace_callback`
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The affected parameters will become positional-only in Python 3.15.
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(Contributed by Erlend E. Aasland in :gh:`107948` and :gh:`108278`.)
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* The ``dis.HAVE_ARGUMENT`` separator is deprecated. Check membership
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in :data:`~dis.hasarg` instead.
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(Contributed by Irit Katriel in :gh:`109319`.)
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* Deprecate non-standard format specifier "N" for :class:`decimal.Decimal`.
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It was not documented and only supported in the C implementation.
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(Contributed by Serhiy Storchaka in :gh:`89902`.)
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* Emit deprecation warning for non-integer numbers in :mod:`gettext` functions
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and methods that consider plural forms even if the translation was not found.
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(Contributed by Serhiy Storchaka in :gh:`88434`.)
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* Calling :meth:`frame.clear` on a suspended frame raises :exc:`RuntimeError`
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(as has always been the case for an executing frame).
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(Contributed by Irit Katriel in :gh:`79932`.)
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@ -593,9 +595,6 @@ Deprecated
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coroutine.
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(Contributed by Irit Katriel in :gh:`81137`.)
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* Deprecate undocumented :func:`!pydoc.ispackage` function.
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(Contributed by Zackery Spytz in :gh:`64020`.)
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Pending Removal in Python 3.14
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------------------------------
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@ -657,11 +656,11 @@ Pending Removal in Python 3.14
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:func:`~multiprocessing.set_start_method` APIs to explicitly specify when
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your code *requires* ``'fork'``. See :ref:`multiprocessing-start-methods`.
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* :mod:`pathlib`: :meth:`~pathlib.PurePath.is_relative_to`,
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* :mod:`pathlib`: :meth:`~pathlib.PurePath.is_relative_to` and
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:meth:`~pathlib.PurePath.relative_to`: passing additional arguments is
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deprecated.
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* :func:`pkgutil.find_loader` and :func:`pkgutil.get_loader`
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* :mod:`pkgutil`: :func:`~pkgutil.find_loader` and :func:`~pkgutil.get_loader`
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now raise :exc:`DeprecationWarning`;
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use :func:`importlib.util.find_spec` instead.
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(Contributed by Nikita Sobolev in :gh:`97850`.)
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@ -719,10 +718,16 @@ Pending Removal in Python 3.15
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(Contributed by Hugo van Kemenade in :gh:`111187`.)
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* :mod:`pathlib`:
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:meth:`pathlib.PurePath.is_reserved` is deprecated and scheduled for
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removal in Python 3.15. Use :func:`os.path.isreserved` to detect reserved
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paths on Windows.
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* :meth:`pathlib.PurePath.is_reserved` is deprecated and scheduled for
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removal in Python 3.15. Use :func:`os.path.isreserved` to detect reserved
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paths on Windows.
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* :mod:`threading`:
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Passing any arguments to :func:`threading.RLock` is now deprecated.
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C version allows any numbers of args and kwargs,
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but they are just ignored. Python version does not allow any arguments.
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All arguments will be removed from :func:`threading.RLock` in Python 3.15.
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(Contributed by Nikita Sobolev in :gh:`102029`.)
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* :class:`typing.NamedTuple`:
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@ -749,12 +754,6 @@ Pending Removal in Python 3.15
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They will be removed in Python 3.15.
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(Contributed by Victor Stinner in :gh:`105096`.)
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* Passing any arguments to :func:`threading.RLock` is now deprecated.
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C version allows any numbers of args and kwargs,
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but they are just ignored. Python version does not allow any arguments.
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All arguments will be removed from :func:`threading.RLock` in Python 3.15.
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(Contributed by Nikita Sobolev in :gh:`102029`.)
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Pending Removal in Python 3.16
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------------------------------
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@ -801,6 +800,9 @@ although there is currently no date scheduled for their removal.
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:data:`calendar.FEBRUARY`.
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(Contributed by Prince Roshan in :gh:`103636`.)
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* :attr:`codeobject.co_lnotab`: use the :meth:`codeobject.co_lines` method
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instead.
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* :mod:`datetime`:
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* :meth:`~datetime.datetime.utcnow`:
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@ -836,11 +838,13 @@ although there is currently no date scheduled for their removal.
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underscore.
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(Contributed by Serhiy Storchaka in :gh:`91760`.)
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* :mod:`!sre_compile`, :mod:`!sre_constants` and :mod:`!sre_parse` modules.
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* :mod:`ssl` options and protocols:
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* :class:`ssl.SSLContext` without protocol argument is deprecated.
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* :class:`ssl.SSLContext`: :meth:`~ssl.SSLContext.set_npn_protocols` and
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:meth:`!~ssl.SSLContext.selected_npn_protocol` are deprecated: use ALPN
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:meth:`!selected_npn_protocol` are deprecated: use ALPN
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instead.
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* ``ssl.OP_NO_SSL*`` options
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* ``ssl.OP_NO_TLS*`` options
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@ -853,13 +857,6 @@ although there is currently no date scheduled for their removal.
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* ``ssl.TLSVersion.TLSv1``
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* ``ssl.TLSVersion.TLSv1_1``
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* :mod:`!sre_compile`, :mod:`!sre_constants` and :mod:`!sre_parse` modules.
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* :attr:`codeobject.co_lnotab`: use the :meth:`codeobject.co_lines` method
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instead.
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* :class:`typing.Text` (:gh:`92332`).
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* :func:`sysconfig.is_python_build` *check_home* parameter is deprecated and
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ignored.
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@ -874,14 +871,10 @@ although there is currently no date scheduled for their removal.
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* :meth:`!threading.currentThread`: use :meth:`threading.current_thread`.
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* :meth:`!threading.activeCount`: use :meth:`threading.active_count`.
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* :class:`typing.Text` (:gh:`92332`).
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* :class:`unittest.IsolatedAsyncioTestCase`: it is deprecated to return a value
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that is not None from a test case.
|
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|
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* :mod:`urllib.request`: :class:`~urllib.request.URLopener` and
|
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:class:`~urllib.request.FancyURLopener` style of invoking requests is
|
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deprecated. Use newer :func:`~urllib.request.urlopen` functions and methods.
|
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|
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* :func:`!urllib.parse.to_bytes`.
|
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that is not ``None`` from a test case.
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* :mod:`urllib.parse` deprecated functions: :func:`~urllib.parse.urlparse` instead
|
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@ -895,6 +888,11 @@ although there is currently no date scheduled for their removal.
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* ``splittype()``
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* ``splituser()``
|
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* ``splitvalue()``
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* ``to_bytes()``
|
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|
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* :mod:`urllib.request`: :class:`~urllib.request.URLopener` and
|
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:class:`~urllib.request.FancyURLopener` style of invoking requests is
|
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deprecated. Use newer :func:`~urllib.request.urlopen` functions and methods.
|
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|
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* :mod:`wsgiref`: ``SimpleHandler.stdout.write()`` should not do partial
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writes.
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|
|
@ -1190,10 +1188,10 @@ Changes in the Python API
|
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* Functions :c:func:`PyDict_GetItem`, :c:func:`PyDict_GetItemString`,
|
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:c:func:`PyMapping_HasKey`, :c:func:`PyMapping_HasKeyString`,
|
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:c:func:`PyObject_HasAttr`, :c:func:`PyObject_HasAttrString`, and
|
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:c:func:`PySys_GetObject`, which clear all errors occurred during calling
|
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the function, report now them using :func:`sys.unraisablehook`.
|
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You can consider to replace these functions with other functions as
|
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recomended in the documentation.
|
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:c:func:`PySys_GetObject`, which clear all errors which occurred when calling
|
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them, now report them using :func:`sys.unraisablehook`.
|
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You may replace them with other functions as
|
||||
recommended in the documentation.
|
||||
(Contributed by Serhiy Storchaka in :gh:`106672`.)
|
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|
||||
* An :exc:`OSError` is now raised by :func:`getpass.getuser` for any failure to
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|
|
@ -1202,7 +1200,7 @@ Changes in the Python API
|
|||
|
||||
* The :mod:`threading` module now expects the :mod:`!_thread` module to have
|
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an ``_is_main_interpreter`` attribute. It is a function with no
|
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arguments that returns ``True`` if the current interpreter is the
|
||||
arguments that return ``True`` if the current interpreter is the
|
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main interpreter.
|
||||
|
||||
Any library or application that provides a custom ``_thread`` module
|
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|
|
@ -1225,7 +1223,7 @@ Build Changes
|
|||
(Contributed by Erlend Aasland in :gh:`105875`.)
|
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|
||||
* Python built with :file:`configure` :option:`--with-trace-refs` (tracing
|
||||
references) is now ABI compatible with Python release build and
|
||||
references) is now ABI compatible with the Python release build and
|
||||
:ref:`debug build <debug-build>`.
|
||||
(Contributed by Victor Stinner in :gh:`108634`.)
|
||||
|
||||
|
|
@ -1252,7 +1250,7 @@ New Features
|
|||
(Contributed by Inada Naoki in :gh:`104922`.)
|
||||
|
||||
* The *keywords* parameter of :c:func:`PyArg_ParseTupleAndKeywords` and
|
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:c:func:`PyArg_VaParseTupleAndKeywords` has now type :c:expr:`char * const *`
|
||||
:c:func:`PyArg_VaParseTupleAndKeywords` now has type :c:expr:`char * const *`
|
||||
in C and :c:expr:`const char * const *` in C++, instead of :c:expr:`char **`.
|
||||
It makes these functions compatible with arguments of type
|
||||
:c:expr:`const char * const *`, :c:expr:`const char **` or
|
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|
|
@ -1309,14 +1307,14 @@ New Features
|
|||
always steals a reference to the value.
|
||||
(Contributed by Serhiy Storchaka in :gh:`86493`.)
|
||||
|
||||
* Added :c:func:`PyDict_GetItemRef` and :c:func:`PyDict_GetItemStringRef`
|
||||
* Add :c:func:`PyDict_GetItemRef` and :c:func:`PyDict_GetItemStringRef`
|
||||
functions: similar to :c:func:`PyDict_GetItemWithError` but returning a
|
||||
:term:`strong reference` instead of a :term:`borrowed reference`. Moreover,
|
||||
these functions return -1 on error and so checking ``PyErr_Occurred()`` is
|
||||
not needed.
|
||||
(Contributed by Victor Stinner in :gh:`106004`.)
|
||||
|
||||
* Added :c:func:`PyDict_ContainsString` function: same as
|
||||
* Add :c:func:`PyDict_ContainsString` function: same as
|
||||
:c:func:`PyDict_Contains`, but *key* is specified as a :c:expr:`const char*`
|
||||
UTF-8 encoded bytes string, rather than a :c:expr:`PyObject*`.
|
||||
(Contributed by Victor Stinner in :gh:`108314`.)
|
||||
|
|
@ -1374,7 +1372,7 @@ New Features
|
|||
(Contributed by Victor Stinner in :gh:`85283`.)
|
||||
|
||||
* Add :c:func:`PyErr_FormatUnraisable` function: similar to
|
||||
:c:func:`PyErr_WriteUnraisable`, but allow to customize the warning mesage.
|
||||
:c:func:`PyErr_WriteUnraisable`, but allow customizing the warning message.
|
||||
(Contributed by Serhiy Storchaka in :gh:`108082`.)
|
||||
|
||||
* Add :c:func:`PyList_Extend` and :c:func:`PyList_Clear` functions: similar to
|
||||
|
|
@ -1384,7 +1382,7 @@ New Features
|
|||
* Add :c:func:`PyDict_Pop` and :c:func:`PyDict_PopString` functions: remove a
|
||||
key from a dictionary and optionally return the removed value. This is
|
||||
similar to :meth:`dict.pop`, but without the default value and not raising
|
||||
:exc:`KeyError` if the key missing.
|
||||
:exc:`KeyError` if the key is missing.
|
||||
(Contributed by Stefan Behnel and Victor Stinner in :gh:`111262`.)
|
||||
|
||||
* Add :c:func:`Py_HashPointer` function to hash a pointer.
|
||||
|
|
@ -1497,7 +1495,7 @@ Removed
|
|||
-------
|
||||
|
||||
* Removed chained :class:`classmethod` descriptors (introduced in
|
||||
:issue:`19072`). This can no longer be used to wrap other descriptors
|
||||
:gh:`63272`). This can no longer be used to wrap other descriptors
|
||||
such as :class:`property`. The core design of this feature was flawed
|
||||
and caused a number of downstream problems. To "pass-through" a
|
||||
:class:`classmethod`, consider using the :attr:`!__wrapped__`
|
||||
|
|
@ -1511,14 +1509,14 @@ Removed
|
|||
add ``cc @vstinner`` to the issue to notify Victor Stinner.
|
||||
(Contributed by Victor Stinner in :gh:`106320`.)
|
||||
|
||||
* Remove functions deprecated in Python 3.9.
|
||||
* Remove functions deprecated in Python 3.9:
|
||||
|
||||
* ``PyEval_CallObject()``, ``PyEval_CallObjectWithKeywords()``: use
|
||||
:c:func:`PyObject_CallNoArgs` or :c:func:`PyObject_Call` instead.
|
||||
Warning: :c:func:`PyObject_Call` positional arguments must be a
|
||||
:class:`tuple` and must not be *NULL*, keyword arguments must be a
|
||||
:class:`dict` or *NULL*, whereas removed functions checked arguments type
|
||||
and accepted *NULL* positional and keyword arguments.
|
||||
:class:`tuple` and must not be ``NULL``, keyword arguments must be a
|
||||
:class:`dict` or ``NULL``, whereas removed functions checked arguments type
|
||||
and accepted ``NULL`` positional and keyword arguments.
|
||||
To replace ``PyEval_CallObjectWithKeywords(func, NULL, kwargs)`` with
|
||||
:c:func:`PyObject_Call`, pass an empty tuple as positional arguments using
|
||||
:c:func:`PyTuple_New(0) <PyTuple_New>`.
|
||||
|
|
|
|||
Loading…
Reference in New Issue