diff --git a/Doc/whatsnew/3.11.rst b/Doc/whatsnew/3.11.rst index f3202f0c6d7980..8906be1eccda5d 100644 --- a/Doc/whatsnew/3.11.rst +++ b/Doc/whatsnew/3.11.rst @@ -427,52 +427,57 @@ See `this message from the Steering Council `. (See - :issue:`46725` for more details.) - -* Asynchronous comprehensions are now allowed inside comprehensions in - asynchronous functions. Outer comprehensions implicitly become - asynchronous. (Contributed by Serhiy Storchaka in :issue:`33346`.) +* Starred unpacking expressions can now be used in :keyword:`for` statements. + (See :issue:`46725` for more details.) -* A :exc:`TypeError` is now raised instead of an :exc:`AttributeError` in - :meth:`contextlib.ExitStack.enter_context` and - :meth:`contextlib.AsyncExitStack.enter_async_context` for objects which do not - support the :term:`context manager` or :term:`asynchronous context manager` - protocols correspondingly. - (Contributed by Serhiy Storchaka in :issue:`44471`.) +* Asynchronous :ref:`comprehensions ` are now allowed + inside comprehensions in :ref:`asynchronous functions `. + Outer comprehensions implicitly become asynchronous in this case. + (Contributed by Serhiy Storchaka in :issue:`33346`.) * A :exc:`TypeError` is now raised instead of an :exc:`AttributeError` in - :keyword:`with` and :keyword:`async with` statements for objects which do not - support the :term:`context manager` or :term:`asynchronous context manager` - protocols correspondingly. - (Contributed by Serhiy Storchaka in :issue:`12022`.) - -* Added :meth:`object.__getstate__` which provides the default - implementation of the ``__getstate__()`` method. :mod:`Copying ` - and :mod:`pickling ` instances of subclasses of builtin types + :keyword:`with` statements and :meth:`contextlib.ExitStack.enter_context` + for objects that do not support the :term:`context manager` protocol, + and in :keyword:`async with` statements and + :meth:`contextlib.AsyncExitStack.enter_async_context` + for objects not supporting the :term:`asynchronous context manager` protocol. + (Contributed by Serhiy Storchaka in :issue:`12022` and :issue:`44471`.) + +* Added :meth:`object.__getstate__`, which provides the default + implementation of the :meth:`!__getstate__` method. :mod:`copy`\ing + and :mod:`pickle`\ing instances of subclasses of builtin types :class:`bytearray`, :class:`set`, :class:`frozenset`, :class:`collections.OrderedDict`, :class:`collections.deque`, :class:`weakref.WeakSet`, and :class:`datetime.tzinfo` now copies and pickles instance attributes implemented as :term:`slots <__slots__>`. (Contributed by Serhiy Storchaka in :issue:`26579`.) -* Add :option:`-P` command line option and :envvar:`PYTHONSAFEPATH` environment - variable to not prepend a potentially unsafe path to :data:`sys.path` such as - the current directory, the script's directory or an empty string. +* Added a :option:`-P` command line option + and a :envvar:`PYTHONSAFEPATH` environment variable, + which disable the automatic prepending to :data:`sys.path` + of the script's directory when running a script, + or the current directory when using :option:`-c` and :option:`-m`. + This ensures only stdlib and installed modules + are picked up by :keyword:`import`, + and avoids unintentionally or maliciously shadowing modules + with those in a local (and typically user-writable) directory. (Contributed by Victor Stinner in :gh:`57684`.) -* A ``"z"`` option was added to the format specification mini-language that - coerces negative zero to zero after rounding to the format precision. See - :pep:`682` for more details. (Contributed by John Belmonte in :gh:`90153`.) +* A ``"z"`` option was added to the :ref:`formatspec` that + coerces negative to positive zero after rounding to the format precision. + See :pep:`682` for more details. + (Contributed by John Belmonte in :gh:`90153`.) -* Bytes are no longer accepted on :attr:`sys.path`. Support broke sometime - between Python 3.2 and 3.6 with no one noticing until after Python 3.10.0 - was released. Bringing back support would also be problematic due to - interactions between :option:`-b` and :attr:`sys.path_importer_cache` when - there is a mixture of strings and bytes keys. +* Bytes are no longer accepted on :data:`sys.path`. Support broke sometime + between Python 3.2 and 3.6, with no one noticing until after Python 3.10.0 + was released. In addition, bringing back support would be problematic due to + interactions between :option:`-b` and :data:`sys.path_importer_cache` when + there is a mixture of :class:`str` and :class:`bytes` keys. (Contributed by Thomas Grainger in :gh:`91181`.) Other CPython Implementation Changes pFad - Phonifier reborn

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