.. bpo: 28414
.. date: 2017-08-06-14-43-45
.. nonce: mzZ6vD
.. release date: 2018-02-27
.. section: Security
The ssl module now allows users to perform their own IDN en/decoding when
using SNI.
..
.. bpo: 32889
.. date: 2018-02-20-21-53-48
.. nonce: J6eWy5
.. section: Core and Builtins
Update Valgrind suppression list to account for the rename of
``Py_ADDRESS_IN_RANG`` to ``address_in_range``.
..
.. bpo: 31356
.. date: 2018-02-02-08-50-46
.. nonce: MNwUOQ
.. section: Core and Builtins
Remove the new API added in bpo-31356 (gc.ensure_disabled() context
manager).
..
.. bpo: 32305
.. date: 2018-02-01-10-56-41
.. nonce: dkU9Qa
.. section: Core and Builtins
For namespace packages, ensure that both ``__file__`` and
``__spec__.origin`` are set to None.
..
.. bpo: 32303
.. date: 2018-02-01-10-16-28
.. nonce: VsvhSl
.. section: Core and Builtins
Make sure ``__spec__.loader`` matches ``__loader__`` for namespace packages.
..
.. bpo: 32711
.. date: 2018-01-29-14-36-37
.. nonce: 8hQFJP
.. section: Core and Builtins
Fix the warning messages for Python/ast_unparse.c. Patch by Stéphane Wirtel
..
.. bpo: 32583
.. date: 2018-01-26-21-20-21
.. nonce: Fh3fau
.. section: Core and Builtins
Fix possible crashing in builtin Unicode decoders caused by write
out-of-bound errors when using customized decode error handlers.
..
.. bpo: 32960
.. date: 2018-02-26-20-04-40
.. nonce: 48r0Ml
.. section: Library
For dataclasses, disallow inheriting frozen from non-frozen classes, and
also disallow inheriting non-frozen from frozen classes. This restriction
will be relaxed at a future date.
..
.. bpo: 32713
.. date: 2018-02-26-13-16-36
.. nonce: 55yegW
.. section: Library
Fixed tarfile.itn handling of out-of-bounds float values. Patch by Joffrey
Fuhrer.
..
.. bpo: 32951
.. date: 2018-02-25-18-22-01
.. nonce: gHrCXq
.. section: Library
Direct instantiation of SSLSocket and SSLObject objects is now prohibited.
The constructors were never documented, tested, or designed as public
constructors. Users were suppose to use ssl.wrap_socket() or SSLContext.
..
.. bpo: 32929
.. date: 2018-02-25-13-47-48
.. nonce: X2gTDH
.. section: Library
Remove the tri-state parameter "hash", and add the boolean "unsafe_hash". If
unsafe_hash is True, add a __hash__ function, but if a __hash__ exists,
raise TypeError. If unsafe_hash is False, add a __hash__ based on the
values of eq= and frozen=. The unsafe_hash=False behavior is the same as
the old hash=None behavior. unsafe_hash=False is the default, just as
hash=None used to be.
..
.. bpo: 32947
.. date: 2018-02-25-13-06-21
.. nonce: mqStVW
.. section: Library
Add OP_ENABLE_MIDDLEBOX_COMPAT and test workaround for TLSv1.3 for future
compatibility with OpenSSL 1.1.1.
..
.. bpo: 30622
.. date: 2018-02-24-21-40-42
.. nonce: dQjxSe
.. section: Library
The ssl module now detects missing NPN support in LibreSSL.
..
.. bpo: 32922
.. date: 2018-02-23-19-12-04
.. nonce: u-xe0B
.. section: Library
dbm.open() now encodes filename with the filesystem encoding rather than
default encoding.
..
.. bpo: 32859
.. date: 2018-02-19-17-46-31
.. nonce: kAT-Xp
.. section: Library
In ``os.dup2``, don't check every call whether the ``dup3`` syscall exists
or not.
..
.. bpo: 32556
.. date: 2018-02-19-14-27-51
.. nonce: CsRsgr
.. section: Library
nt._getfinalpathname, nt._getvolumepathname and nt._getdiskusage now
correctly convert from bytes.
..
.. bpo: 25988
.. date: 2018-02-18-13-04-59
.. nonce: ACidKC
.. section: Library
Emit a :exc:`DeprecationWarning` when using or importing an ABC directly
from :mod:`collections` rather than from :mod:`collections.abc`.
..
.. bpo: 21060
.. date: 2018-02-17-19-20-19
.. nonce: S1Z-x6
.. section: Library
Rewrite confusing message from setup.py upload from "No dist file created in
earlier command" to the more helpful "Must create and upload files in one
command".
..
.. bpo: 32852
.. date: 2018-02-15-12-04-29
.. nonce: HDqIxM
.. section: Library
Make sure sys.argv remains as a list when running trace.
..
.. bpo: 31333
.. date: 2018-02-15-08-18-52
.. nonce: 4fF-gM
.. section: Library
``_abc`` module is added. It is a speedup module with C implementations for
various functions and methods in ``abc``. Creating an ABC subclass and
calling ``isinstance`` or ``issubclass`` with an ABC subclass are up to 1.5x
faster. In addition, this makes Python start-up up to 10% faster.
Note that the new implementation hides internal registry and caches,
previously accessible via private attributes ``_abc_registry``,
``_abc_cache``, and ``_abc_negative_cache``. There are three debugging
helper methods that can be used instead ``_dump_registry``,
``_abc_registry_clear``, and ``_abc_caches_clear``.
..
.. bpo: 32841
.. date: 2018-02-14-00-21-24
.. nonce: bvHDOc
.. section: Library
Fixed ``asyncio.Condition`` issue which silently ignored cancellation after
notifying and cancelling a conditional lock. Patch by Bar Harel.
..
.. bpo: 32819
.. date: 2018-02-11-15-54-41
.. nonce: ZTRX2Q
.. section: Library
ssl.match_hostname() has been simplified and no longer depends on re and
ipaddress module for wildcard and IP addresses. Error reporting for invalid
wildcards has been improved.
..
.. bpo: 32394
.. date: 2018-02-10-13-51-56
.. nonce: dFM9SI
.. section: Library
socket: Remove TCP_FASTOPEN,TCP_KEEPCNT,TCP_KEEPIDLE,TCP_KEEPINTVL flags on
older version Windows during run-time.
..
.. bpo: 31787
.. date: 2018-02-09-21-41-56
.. nonce: owSZ2t
.. section: Library
Fixed refleaks of ``__init__()`` methods in various modules. (Contributed by
Oren Milman)
..
.. bpo: 30157
.. date: 2018-02-09-14-44-43
.. nonce: lEiiAK
.. section: Library
Fixed guessing quote and delimiter in csv.Sniffer.sniff() when only the last
field is quoted. Patch by Jake Davis.
..
.. bpo: 32792
.. date: 2018-02-08-00-47-07
.. nonce: NtyDb4
.. section: Library
collections.ChainMap() preserves the order of the underlying mappings.
..
.. bpo: 32775
.. date: 2018-02-07-19-12-10
.. nonce: -T77_c
.. section: Library
:func:`fnmatch.translate` no longer produces patterns which contain set
operations. Sets starting with '[' or containing '--', '&&', '~~' or '||'
will be interpreted differently in regular expressions in future versions.
Currently they emit warnings. fnmatch.translate() now avoids producing
patterns containing such sets by accident.
..
.. bpo: 32622
.. date: 2018-02-06-17-58-15
.. nonce: AE0Jz7
.. section: Library
Implement native fast sendfile for Windows proactor event loop.
..
.. bpo: 32777
.. date: 2018-02-05-21-28-28
.. nonce: C-wIXF
.. section: Library
Fix a rare but potential pre-exec child process deadlock in subprocess on
POSIX systems when marking file descriptors inheritable on exec in the child
process. This bug appears to have been introduced in 3.4.
..
.. bpo: 32647
.. date: 2018-02-05-13-31-42
.. nonce: ktmfR_
.. section: Library
The ctypes module used to depend on indirect linking for dlopen. The shared
extension is now explicitly linked against libdl on platforms with dl.
..
.. bpo: 32741
.. date: 2018-02-01-17-54-08
.. nonce: KUvOPL
.. section: Library
Implement ``asyncio.TimerHandle.when()`` method.
..
.. bpo: 32691
.. date: 2018-02-01-15-53-35
.. nonce: VLWVTq
.. section: Library
Use mod_spec.parent when running modules with pdb
..
.. bpo: 32734
.. date: 2018-02-01-01-34-47
.. nonce: gCV9AD
.. section: Library
Fixed ``asyncio.Lock()`` safety issue which allowed acquiring and locking
the same lock multiple times, without it being free. Patch by Bar Harel.
..
.. bpo: 32727
.. date: 2018-01-30-17-46-18
.. nonce: aHVsRC
.. section: Library
Do not include name field in SMTP envelope from address. Patch by Stéphane
Wirtel
..
.. bpo: 31453
.. date: 2018-01-21-15-01-50
.. nonce: cZiZBe
.. section: Library
Add TLSVersion constants and SSLContext.maximum_version / minimum_version
attributes. The new API wraps OpenSSL 1.1
https://web.archive.org/web/20180309043602/https://www.openssl.org/docs/man1.1.0/ssl/SSL_CTX_set_min_proto_version.html
feature.
..
.. bpo: 24334
.. date: 2018-01-20-23-17-25
.. nonce: GZuQLv
.. section: Library
Internal implementation details of ssl module were cleaned up. The SSLSocket
has one less layer of indirection. Owner and session information are now
handled by the SSLSocket and SSLObject constructor. Channel binding
implementation has been simplified.
..
.. bpo: 31848
.. date: 2018-01-18-23-34-17
.. nonce: M2cldy
.. section: Library
Fix the error handling in Aifc_read.initfp() when the SSND chunk is not
found. Patch by Zackery Spytz.
..
.. bpo: 32585
.. date: 2018-01-18-13-09-00
.. nonce: qpeijr
.. section: Library
Add Ttk spinbox widget to :mod:`tkinter.ttk`. Patch by Alan D Moore.
..
.. bpo: 32221
.. date: 2017-12-06-10-10-10
.. nonce: ideco_
.. section: Library
Various functions returning tuple containing IPv6 addresses now omit
``%scope`` part since the same information is already encoded in *scopeid*
tuple item. Especially this speeds up :func:`socket.recvfrom` when it
receives multicast packet since useless resolving of network interface name
is omitted.
..
.. bpo: 30693
.. date: 2017-11-27-15-09-49
.. nonce: yC4mJ8
.. section: Library
The TarFile class now recurses directories in a reproducible way.
..
.. bpo: 30693
.. date: 2017-11-27-15-09-49
.. nonce: yC4mJ7
.. section: Library
The ZipFile class now recurses directories in a reproducible way.
..
.. bpo: 28124
.. date: 2018-02-25-16-33-35
.. nonce: _uzkgq
.. section: Documentation
The ssl module function ssl.wrap_socket() has been de-emphasized and
deprecated in favor of the more secure and efficient
SSLContext.wrap_socket() method.
..
.. bpo: 17232
.. date: 2018-02-23-12-48-03
.. nonce: tmuTKL
.. section: Documentation
Clarify docs for -O and -OO. Patch by Terry Reedy.
..
.. bpo: 32436
.. date: 2018-02-14-11-10-41
.. nonce: TTJ2jb
.. section: Documentation
Add documentation for the contextvars module (PEP 567).
..
.. bpo: 32800
.. date: 2018-02-10-15-16-04
.. nonce: FyrqCk
.. section: Documentation
Update link to w3c doc for xml default namespaces.
..
.. bpo: 11015
.. date: 2018-02-10-12-48-38
.. nonce: -gUf34
.. section: Documentation
Update :mod:`test.support` documentation.
..
.. bpo: 8722
.. date: 2018-02-03-06-11-37
.. nonce: MPyVyj
.. section: Documentation
Document :meth:`__getattr__` behavior when property :meth:`get` method
raises :exc:`AttributeError`.
..
.. bpo: 32614
.. date: 2018-02-02-07-41-57
.. nonce: LSqzGw
.. section: Documentation
Modify RE examples in documentation to use raw strings to prevent
:exc:`DeprecationWarning` and add text to REGEX HOWTO to highlight the
deprecation.
..
.. bpo: 31972
.. date: 2018-01-25-14-23-12
.. nonce: w1m_8r
.. section: Documentation
Improve docstrings for ``pathlib.PurePath`` subclasses.
..
.. bpo: 31809
.. date: 2017-10-18-18-07-45
.. nonce: KlQrkE
.. section: Tests
Add tests to verify connection with secp ECDH curves.
..
.. bpo: 32898
.. date: 2018-02-21-12-46-00
.. nonce: M15bZh
.. section: Build
Fix the python debug build when using COUNT_ALLOCS.
..
.. bpo: 32901
.. date: 2018-02-23-00-47-13
.. nonce: mGKz5_
.. section: Windows
Update Tcl and Tk versions to 8.6.8
..
.. bpo: 31966
.. date: 2018-02-19-13-54-42
.. nonce: _Q3HPb
.. section: Windows
Fixed WindowsConsoleIO.write() for writing empty data.
..
.. bpo: 32409
.. date: 2018-02-19-10-00-57
.. nonce: nocuDg
.. section: Windows
Ensures activate.bat can handle Unicode contents.
..
.. bpo: 32457
.. date: 2018-02-19-08-54-06
.. nonce: vVP0Iz
.. section: Windows
Improves handling of denormalized executable path when launching Python.
..
.. bpo: 32370
.. date: 2018-02-10-15-38-19
.. nonce: kcKuct
.. section: Windows
Use the correct encoding for ipconfig output in the uuid module. Patch by
Segev Finer.
..
.. bpo: 29248
.. date: 2018-02-07-17-50-48
.. nonce: Xzwj-6
.. section: Windows
Fix :func:`os.readlink` on Windows, which was mistakenly treating the
``PrintNameOffset`` field of the reparse data buffer as a number of
characters instead of bytes. Patch by Craig Holmquist and SSE4.
..
.. bpo: 32901
.. date: 2018-02-27-17-33-15
.. nonce: hQu0w3
.. section: macOS
Update macOS 10.9+ installer to Tcl/Tk 8.6.8.
..
.. bpo: 32916
.. date: 2018-02-23-07-32-36
.. nonce: 4MsQ5F
.. section: IDLE
Change ``str`` to ``code`` in pyparse.
..
.. bpo: 32905
.. date: 2018-02-22-00-09-27
.. nonce: VlXj0x
.. section: IDLE
Remove unused code in pyparse module.
..
.. bpo: 32874
.. date: 2018-02-19-10-56-41
.. nonce: 6pZ9Gv
.. section: IDLE
Add tests for pyparse.
..
.. bpo: 32837
.. date: 2018-02-12-17-22-48
.. nonce: -33QPl
.. section: IDLE
Using the system and place-dependent default encoding for open() is a bad
idea for IDLE's system and location-independent files.
..
.. bpo: 32826
.. date: 2018-02-12-11-05-22
.. nonce: IxNZrk
.. section: IDLE
Add "encoding=utf-8" to open() in IDLE's test_help_about. GUI test
test_file_buttons() only looks at initial ascii-only lines, but failed on
systems where open() defaults to 'ascii' because readline() internally reads
and decodes far enough ahead to encounter a non-ascii character in
CREDITS.txt.
..
.. bpo: 32765
.. date: 2018-02-04-17-52-54
.. nonce: qm0eCu
.. section: IDLE
Update configdialog General tab docstring to add new widgets to the widget
list.
..
.. bpo: 32222
.. date: 2017-12-07-20-51-20
.. nonce: hPBcGT
.. section: Tools/Demos
Fix pygettext not extracting docstrings for functions with type annotated
arguments. Patch by Toby Harradine.
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