whatsnew/3.5: Fix library news till Py3.5a1. Update other docs.
This commit is contained in:
Yury Selivanov
parent
dfcfe13300
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100fc3fbc2
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@ -88,14 +88,12 @@ compile Python sources.
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Added the ``-i``, ``-b`` and ``-h`` options.
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.. versionchanged:: 3.5
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Added the ``-j`` and ``-r`` options.
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.. versionchanged:: 3.5
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``-q`` option was changed to a multilevel value.
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.. versionchanged:: 3.5
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``-b`` will always produce a byte-code file ending in ``.pyc``, never
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``.pyo``.
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* Added the ``-j`` and ``-r`` options.
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* ``-q`` option was changed to a multilevel value.
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* ``-qq`` option.
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* ``-b`` will always produce a byte-code file ending in ``.pyc``,
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never ``.pyo``.
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There is no command-line option to control the optimization level used by the
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@ -54,10 +54,8 @@ from :func:`what`:
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+------------+-----------------------------------+
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.. versionadded:: 3.5
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The *exr* format was added.
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The *exr* and *webp* formats were added.
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.. versionchanged:: 3.5
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The *webp* type was added.
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You can extend the list of file types :mod:`imghdr` can recognize by appending
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to this variable:
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@ -1039,6 +1039,11 @@ line.
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returned list represents *frame*; the last entry represents the outermost call
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on *frame*'s stack.
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.. versionchanged:: 3.5
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A list of :term:`named tuples <named tuple>`
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``FrameInfo(frame, filename, lineno, function, code_context, index)``
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is returned.
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.. function:: getinnerframes(traceback, context=1)
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@ -1047,6 +1052,11 @@ line.
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list represents *traceback*; the last entry represents where the exception was
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raised.
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.. versionchanged:: 3.5
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A list of :term:`named tuples <named tuple>`
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``FrameInfo(frame, filename, lineno, function, code_context, index)``
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is returned.
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.. function:: currentframe()
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@ -1066,6 +1076,11 @@ line.
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returned list represents the caller; the last entry represents the outermost
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call on the stack.
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.. versionchanged:: 3.5
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A list of :term:`named tuples <named tuple>`
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``FrameInfo(frame, filename, lineno, function, code_context, index)``
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is returned.
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.. function:: trace(context=1)
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@ -1074,6 +1089,11 @@ line.
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entry in the list represents the caller; the last entry represents where the
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exception was raised.
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.. versionchanged:: 3.5
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A list of :term:`named tuples <named tuple>`
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``FrameInfo(frame, filename, lineno, function, code_context, index)``
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is returned.
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Fetching attributes statically
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------------------------------
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@ -122,7 +122,14 @@ Significantly Improved Library Modules:
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Security improvements:
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* None yet.
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* SSLv3 is now disabled throughout the standard library.
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It can still be enabled by instantiating a :class:`ssl.SSLContext`
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manually. (See :issue:`22638` for more details; this change was
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backported to CPython 3.4 and 2.7.)
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* HTTP cookie parsing is now stricter, in order to protect
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against potential injection attacks. (Contributed by Antoine Pitrou
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in :issue:`22796`.)
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Windows improvements:
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@ -606,6 +613,13 @@ argparse
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:ref:`allow_abbrev` to ``False``.
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(Contributed by Jonathan Paugh, Steven Bethard, paul j3 and Daniel Eriksson.)
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bz2
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---
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* New option *max_length* for :meth:`~bz2.BZ2Decompressor.decompress`
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to limit the maximum size of decompressed data.
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(Contributed by Nikolaus Rath in :issue:`15955`.)
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cgi
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---
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@ -645,6 +659,20 @@ compileall
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can now do parallel bytecode compilation.
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(Contributed by Claudiu Popa in :issue:`16104`.)
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* *quiet* parameter of :func:`compileall.compile_dir`,
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:func:`compileall.compile_file`, and :func:`compileall.compile_path`
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functions now has a multilevel value. New ``-qq`` command line option
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is available for suppressing the output.
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(Contributed by Thomas Kluyver in :issue:`21338`.)
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concurrent.futures
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------------------
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* :meth:`~concurrent.futures.Executor.map` now takes a *chunksize*
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argument to allow batching of tasks in child processes and improve
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performance of ProcessPoolExecutor.
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(Contributed by Dan O'Reilly in :issue:`11271`.)
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contextlib
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----------
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@ -714,6 +742,12 @@ glob
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subdirectories using the "``**``" pattern.
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(Contributed by Serhiy Storchaka in :issue:`13968`.)
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heapq
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-----
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* :func:`~heapq.merge` has two new optional parameters ``reverse`` and
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``key``. (Contributed by Raymond Hettinger in :issue:`13742`.)
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idlelib and IDLE
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----------------
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@ -746,7 +780,9 @@ imghdr
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------
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* :func:`~imghdr.what` now recognizes the `OpenEXR <http://www.openexr.com>`_
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format. (Contributed by Martin Vignali and Claudiu Popa in :issue:`20295`.)
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format (contributed by Martin Vignali and Claudiu Popa in :issue:`20295`),
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and the `WebP <https://en.wikipedia.org/wiki/WebP>`_ format (contributed
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by Fabrice Aneche and Claudiu Popa in :issue:`20197`.)
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importlib
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---------
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@ -763,6 +799,7 @@ importlib
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* :func:`importlib.util.module_from_spec` is now the preferred way to create a
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new module. Compared to :class:`types.ModuleType`, this new function will set
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the various import-controlled attributes based on the passed-in spec object.
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(Contributed by Brett Cannon in :issue:`20383`.)
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inspect
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-------
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@ -788,6 +825,10 @@ inspect
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* New :func:`~inspect.getcoroutinelocals` and :func:`~inspect.getcoroutinestate`
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functions. (Contributed by Yury Selivanov in :issue:`24400`.)
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* :func:`~inspect.stack`, :func:`~inspect.trace`, :func:`~inspect.getouterframes`,
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and :func:`~inspect.getinnerframes` now return a list of named tuples.
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(Contributed by Daniel Shahaf in :issue:`16808`.)
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ipaddress
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---------
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@ -807,6 +848,35 @@ json
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* JSON decoder now raises :exc:`json.JSONDecodeError` instead of
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:exc:`ValueError`. (Contributed by Serhiy Storchaka in :issue:`19361`.)
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locale
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------
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* New :func:`~locale.delocalize` function to convert a string into a
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normalized number string, following the ``LC_NUMERIC`` settings.
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(Contributed by Cédric Krier in :issue:`13918`.)
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logging
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-------
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* All logging methods :meth:`~logging.Logger.log`, :meth:`~logging.Logger.exception`,
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:meth:`~logging.Logger.critical`, :meth:`~logging.Logger.debug`, etc,
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now accept exception instances for ``exc_info`` parameter, in addition
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to boolean values and exception tuples.
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(Contributed by Yury Selivanov in :issue:`20537`.)
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* :class:`~logging.handlers.HTTPHandler` now accepts optional
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:class:`ssl.SSLContext` instance to configure the SSL settings used
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for HTTP connection.
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(Contributed by Alex Gaynor in :issue:`22788`.)
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lzma
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----
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* New option *max_length* for :meth:`~lzma.LZMADecompressor.decompress`
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to limit the maximum size of decompressed data.
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(Contributed by Martin Panter in :issue:`15955`.)
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math
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----
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@ -832,6 +902,10 @@ os
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function is now used. These functions avoid the usage of an internal file
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descriptor.
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* New :func:`os.get_blocking` and :func:`os.set_blocking` functions to
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get and set the blocking mode of file descriptors.
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(Contributed by Victor Stinner in :issue:`22054`.)
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os.path
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-------
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@ -839,6 +913,25 @@ os.path
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Unlike the :func:`~os.path.commonprefix` function, it always returns a valid
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path. (Contributed by Rafik Draoui and Serhiy Storchaka in :issue:`10395`.)
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pathlib
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-------
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* New :meth:`~pathlib.Path.samefile` method to check if other path object
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points to the same file. (Contributed by Vajrasky Kok and Antoine Pitrou
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in :issue:`19775`.)
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* :meth:`~pathlib.Path.mkdir` has a new optional parameter ``exist_ok``
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to mimic ``mkdir -p`` and :func:`os.makrdirs` functionality.
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(Contributed by Berker Peksag in :issue:`21539`.)
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* New :meth:`~pathlib.Path.expanduser` to expand ``~`` and ``~user``
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constructs.
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(Contributed by Serhiy Storchaka and Claudiu Popa in :issue:`19776`.)
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* New class method :meth:`~pathlib.Path.home` to get an instance of
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:class:`~pathlib.Path` object representing the user’s home directory.
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(Contributed by Victor Salgado and Mayank Tripathi in :issue:`19777`.)
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pickle
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------
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@ -862,6 +955,12 @@ re
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* Now unmatched groups are replaced with empty strings in :func:`re.sub`
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and :func:`re.subn`. (Contributed by Serhiy Storchaka in :issue:`1519638`.)
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readline
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--------
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* New :func:`~readline.append_history_file` function.
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(Contributed by Bruno Cauet in :issue:`22940`.)
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shutil
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------
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@ -870,6 +969,9 @@ shutil
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:func:`~shutil.copy2` if there is a need to ignore metadata. (Contributed by
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Claudiu Popa in :issue:`19840`.)
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* :func:`~shutil.make_archive` now supports *xztar* format.
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(Contributed by Serhiy Storchaka in :issue:`5411`.)
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signal
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------
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@ -948,6 +1050,14 @@ ssl
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:meth:`SSLContext.wrap_bio <ssl.SSLContext.wrap_bio>` method.
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(Contributed by Geert Jansen in :issue:`21965`.)
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* New :meth:`~ssl.SSLSocket.version` to query the actual protocol version
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in use. (Contributed by Antoine Pitrou in :issue:`20421`.)
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* New :meth:`~ssl.SSLObject.shared_ciphers` and
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:meth:`~ssl.SSLSocket.shared_ciphers` methods to fetch the client's
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list of ciphers sent at handshake.
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(Contributed by Benjamin Peterson in :issue:`23186`.)
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socket
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------
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@ -961,6 +1071,9 @@ socket
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anymore each time bytes are received or sent. The socket timeout is now the
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maximum total duration to send all data.
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* Functions with timeouts now use a monotonic clock, instead of a
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system clock. (Contributed by Victor Stinner in :issue:`22043`.)
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subprocess
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----------
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@ -975,6 +1088,9 @@ sys
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* New :func:`~sys.set_coroutine_wrapper` and :func:`~sys.get_coroutine_wrapper`
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functions. (Contributed by Yury Selivanov in :issue:`24017`.)
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* New :func:`~sys.is_finalizing` to check for :term:`interpreter shutdown`.
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(Contributed by Antoine Pitrou in :issue:`22696`.)
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sysconfig
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---------
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@ -994,6 +1110,13 @@ tarfile
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versions prior to 3.5), they will be owned by the named user and group in the
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tarfile. (Contributed by Michael Vogt and Eric Smith in :issue:`23193`.)
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threading
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---------
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* :meth:`~threading.Lock.acquire` and :meth:`~threading.RLock.acquire`
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now use a monotonic clock for managing timeouts.
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(Contributed by Victor Stinner in :issue:`22043`.)
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time
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----
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@ -1008,6 +1131,17 @@ tkinter
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module which makes no permanent changes to environment variables.
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(Contributed by Zachary Ware in :issue:`20035`.)
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traceback
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---------
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* New :func:`~traceback.walk_stack` and :func:`~traceback.walk_tb`
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functions to conveniently traverse frame and traceback objects.
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(Contributed by Robert Collins in :issue:`17911`.)
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* New lightweight classes: :class:`~traceback.TracebackException`,
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:class:`~traceback.StackSummary`, and :class:`traceback.FrameSummary`.
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(Contributed by Robert Collins in :issue:`17911`.)
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types
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-----
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@ -1032,6 +1166,10 @@ urllib
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control the encoding of query parts if needed. (Contributed by Samwyse and
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Arnon Yaari in :issue:`13866`.)
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* :func:`~urllib.request.urlopen` accepts an :class:`ssl.SSLContext`
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object as a *context* argument, which will be used for the HTTPS
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connection. (Contributed by Alex Gaynor in :issue:`22366`.)
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unicodedata
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-----------
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@ -1051,6 +1189,10 @@ xmlrpc
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* :class:`xmlrpc.client.ServerProxy` is now a :term:`context manager`.
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(Contributed by Claudiu Popa in :issue:`20627`.)
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* :class:`~xmlrpc.client.ServerProxy` constructor now accepts an optional
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:class:`ssl.SSLContext` instance.
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(Contributed by Alex Gaynor in :issue:`22960`.)
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xml.sax
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-------
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@ -1096,7 +1238,10 @@ The following performance enhancements have been added:
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:meth:`~ipaddress.IPv4Network.subnets`, :meth:`~ipaddress.IPv4Network.supernet`,
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:func:`~ipaddress.summarize_address_range`, :func:`~ipaddress.collapse_addresses`.
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The speed up can range from 3x to 15x.
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(:issue:`21486`, :issue:`21487`, :issue:`20826`)
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(See :issue:`21486`, :issue:`21487`, :issue:`20826`, :issue:`23266`.)
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* Pickling of :mod:`ipaddress` classes was optimized to produce significantly
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smaller output. (Contributed by Serhiy Storchaka in :issue:`23133`.)
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* Many operations on :class:`io.BytesIO` are now 50% to 100% faster.
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(Contributed by Serhiy Storchaka in :issue:`15381` and David Wilson in
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@ -1109,6 +1254,13 @@ The following performance enhancements have been added:
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* The UTF-32 encoder is now 3x to 7x faster. (Contributed by Serhiy Storchaka
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in :issue:`15027`.)
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* Regular expressions are now parsed up to 10% faster.
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(Contributed by Serhiy Storchaka in :issue:`19380`.)
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* :func:`json.dumps` was optimized to run with ``ensure_ascii=False``
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as fast as with ``ensure_ascii=True``.
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(Contributed by Naoki Inada in :issue:`23206`.)
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Build and C API Changes
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=======================
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@ -1185,6 +1337,9 @@ Deprecated Python modules, functions and methods
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deprecated in favor of :func:`inspect.signature` API. (See :issue:`20438`
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for details.)
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* Use of ``re.LOCALE`` flag with str patterns or ``re.ASCII`` is now
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deprecated. (Contributed by Serhiy Storchaka in :issue:`22407`.)
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Deprecated functions and types of the C API
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-------------------------------------------
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