cpython/Misc/NEWS.d/3.6.0b2.rst

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.. bpo: 28183
.. date: 9407
.. nonce: MJZeNd
.. release date: 2016-10-10
.. section: Core and Builtins
Optimize and cleanup dict iteration.
..
.. bpo: 26081
.. date: 9406
.. nonce: _x5vjl
.. section: Core and Builtins
Added C implementation of asyncio.Future. Original patch by Yury Selivanov.
..
.. bpo: 28379
.. date: 9405
.. nonce: DuXlco
.. section: Core and Builtins
Added sanity checks and tests for PyUnicode_CopyCharacters(). Patch by Xiang
Zhang.
..
.. bpo: 28376
.. date: 9404
.. nonce: oPD-5D
.. section: Core and Builtins
The type of long range iterator is now registered as Iterator. Patch by Oren
Milman.
..
.. bpo: 28376
.. date: 9403
.. nonce: YEy-uG
.. section: Core and Builtins
Creating instances of range_iterator by calling range_iterator type now is
deprecated. Patch by Oren Milman.
..
.. bpo: 28376
.. date: 9402
.. nonce: fLeHM2
.. section: Core and Builtins
The constructor of range_iterator now checks that step is not 0. Patch by
Oren Milman.
..
.. bpo: 26906
.. date: 9401
.. nonce: YBjcwI
.. section: Core and Builtins
Resolving special methods of uninitialized type now causes implicit
initialization of the type instead of a fail.
..
.. bpo: 18287
.. date: 9400
.. nonce: k6jffS
.. section: Core and Builtins
PyType_Ready() now checks that tp_name is not NULL. Original patch by Niklas
Koep.
..
.. bpo: 24098
.. date: 9399
.. nonce: XqlP_1
.. section: Core and Builtins
Fixed possible crash when AST is changed in process of compiling it.
..
.. bpo: 28201
.. date: 9398
.. nonce: GWUxAy
.. section: Core and Builtins
Dict reduces possibility of 2nd conflict in hash table when hashes have same
lower bits.
..
.. bpo: 28350
.. date: 9397
.. nonce: 8M5Eg9
.. section: Core and Builtins
String constants with null character no longer interned.
..
.. bpo: 26617
.. date: 9396
.. nonce: Gh5LvN
.. section: Core and Builtins
Fix crash when GC runs during weakref callbacks.
..
.. bpo: 27942
.. date: 9395
.. nonce: ZGuhns
.. section: Core and Builtins
String constants now interned recursively in tuples and frozensets.
..
.. bpo: 21578
.. date: 9394
.. nonce: GI1bhj
.. section: Core and Builtins
Fixed misleading error message when ImportError called with invalid keyword
args.
..
.. bpo: 28203
.. date: 9393
.. nonce: LRn5vp
.. section: Core and Builtins
Fix incorrect type in complex(1.0, {2:3}) error message. Patch by Soumya
Sharma.
..
.. bpo: 28086
.. date: 9392
.. nonce: JsQPMQ
.. section: Core and Builtins
Single var-positional argument of tuple subtype was passed unscathed to the
C-defined function. Now it is converted to exact tuple.
..
.. bpo: 28214
.. date: 9391
.. nonce: zQF8Em
.. section: Core and Builtins
Now __set_name__ is looked up on the class instead of the instance.
..
.. bpo: 27955
.. date: 9390
.. nonce: HC4pZ4
.. section: Core and Builtins
Fallback on reading /dev/urandom device when the getrandom() syscall fails
with EPERM, for example when blocked by SECCOMP.
..
.. bpo: 28192
.. date: 9389
.. nonce: eR6stU
.. section: Core and Builtins
Don't import readline in isolated mode.
..
.. bpo: 0
.. date: 9388
.. nonce: 9EbOiD
.. section: Core and Builtins
Upgrade internal unicode databases to Unicode version 9.0.0.
..
.. bpo: 28131
.. date: 9387
.. nonce: owq0wW
.. section: Core and Builtins
Fix a regression in zipimport's compile_source(). zipimport should use the
same optimization level as the interpreter.
..
.. bpo: 28126
.. date: 9386
.. nonce: Qf6-uQ
.. section: Core and Builtins
Replace Py_MEMCPY with memcpy(). Visual Studio can properly optimize
memcpy().
..
.. bpo: 28120
.. date: 9385
.. nonce: e5xc1i
.. section: Core and Builtins
Fix dict.pop() for splitted dictionary when trying to remove a "pending key"
(Not yet inserted in split-table). Patch by Xiang Zhang.
..
.. bpo: 26182
.. date: 9384
.. nonce: jYlqTO
.. section: Core and Builtins
Raise DeprecationWarning when async and await keywords are used as
variable/attribute/class/function name.
..
.. bpo: 27998
.. date: 9383
.. nonce: CPhy4H
.. section: Library
Fixed bytes path support in os.scandir() on Windows. Patch by Eryk Sun.
..
.. bpo: 28317
.. date: 9382
.. nonce: LgHleA
.. section: Library
The disassembler now decodes FORMAT_VALUE argument.
..
.. bpo: 26293
.. date: 9381
.. nonce: 2mjvwX
.. section: Library
Fixed writing ZIP files that starts not from the start of the file. Offsets
in ZIP file now are relative to the start of the archive in conforming to
the specification.
..
.. bpo: 28380
.. date: 9380
.. nonce: jKPMzH
.. section: Library
unittest.mock Mock autospec functions now properly support assert_called,
assert_not_called, and assert_called_once.
..
.. bpo: 27181
.. date: 9379
.. nonce: SQyDpC
.. section: Library
remove statistics.geometric_mean and defer until 3.7.
..
.. bpo: 28229
.. date: 9378
.. nonce: BKAxcS
.. section: Library
lzma module now supports pathlib.
..
.. bpo: 28321
.. date: 9377
.. nonce: bQ-IIX
.. section: Library
Fixed writing non-BMP characters with binary format in plistlib.
..
.. bpo: 28225
.. date: 9376
.. nonce: 6N28nu
.. section: Library
bz2 module now supports pathlib. Initial patch by Ethan Furman.
..
.. bpo: 28227
.. date: 9375
.. nonce: 7lUz8i
.. section: Library
gzip now supports pathlib. Patch by Ethan Furman.
..
.. bpo: 27358
.. date: 9374
.. nonce: t288Iv
.. section: Library
Optimized merging var-keyword arguments and improved error message when
passing a non-mapping as a var-keyword argument.
..
.. bpo: 28257
.. date: 9373
.. nonce: SVD_IH
.. section: Library
Improved error message when passing a non-iterable as a var-positional
argument. Added opcode BUILD_TUPLE_UNPACK_WITH_CALL.
..
.. bpo: 28322
.. date: 9372
.. nonce: l9hzap
.. section: Library
Fixed possible crashes when unpickle itertools objects from incorrect pickle
data. Based on patch by John Leitch.
..
.. bpo: 28228
.. date: 9371
.. nonce: 1qBwdM
.. section: Library
imghdr now supports pathlib.
..
.. bpo: 28226
.. date: 9370
.. nonce: nMXiwU
.. section: Library
compileall now supports pathlib.
..
.. bpo: 28314
.. date: 9369
.. nonce: N7YrkN
.. section: Library
Fix function declaration (C flags) for the getiterator() method of
xml.etree.ElementTree.Element.
..
.. bpo: 28148
.. date: 9368
.. nonce: Flzndx
.. section: Library
Stop using localtime() and gmtime() in the time module.
Introduced platform independent _PyTime_localtime API that is similar to
POSIX localtime_r, but available on all platforms. Patch by Ed Schouten.
..
.. bpo: 28253
.. date: 9367
.. nonce: aLfmhe
.. section: Library
Fixed calendar functions for extreme months: 0001-01 and 9999-12.
Methods itermonthdays() and itermonthdays2() are reimplemented so that they
don't call itermonthdates() which can cause datetime.date under/overflow.
..
.. bpo: 28275
.. date: 9366
.. nonce: EhWIsz
.. section: Library
Fixed possible use after free in the decompress() methods of the
LZMADecompressor and BZ2Decompressor classes. Original patch by John Leitch.
..
.. bpo: 27897
.. date: 9365
.. nonce: I0Ppmx
.. section: Library
Fixed possible crash in sqlite3.Connection.create_collation() if pass
invalid string-like object as a name. Patch by Xiang Zhang.
..
.. bpo: 18844
.. date: 9364
.. nonce: fQsEdn
.. section: Library
random.choices() now has k as a keyword-only argument to improve the
readability of common cases and come into line with the signature used in
other languages.
..
.. bpo: 18893
.. date: 9363
.. nonce: osiX5c
.. section: Library
Fix invalid exception handling in Lib/ctypes/macholib/dyld.py. Patch by
Madison May.
..
.. bpo: 27611
.. date: 9362
.. nonce: A_ArH_
.. section: Library
Fixed support of default root window in the tkinter.tix module. Added the
master parameter in the DisplayStyle constructor.
..
.. bpo: 27348
.. date: 9361
.. nonce: tDx7Vw
.. section: Library
In the traceback module, restore the formatting of exception messages like
"Exception: None". This fixes a regression introduced in 3.5a2.
..
.. bpo: 25651
.. date: 9360
.. nonce: 3UhyPo
.. section: Library
Allow falsy values to be used for msg parameter of subTest().
..
.. bpo: 27778
.. date: 9359
.. nonce: Yyo1aP
.. section: Library
Fix a memory leak in os.getrandom() when the getrandom() is interrupted by a
signal and a signal handler raises a Python exception.
..
.. bpo: 28200
.. date: 9358
.. nonce: 4IEbr7
.. section: Library
Fix memory leak on Windows in the os module (fix path_converter() function).
..
.. bpo: 25400
.. date: 9357
.. nonce: d9Qn0E
.. section: Library
RobotFileParser now correctly returns default values for crawl_delay and
request_rate. Initial patch by Peter Wirtz.
..
.. bpo: 27932
.. date: 9356
.. nonce: mtgl-6
.. section: Library
Prevent memory leak in win32_ver().
..
.. bpo: 0
.. date: 9355
.. nonce: iPpjqX
.. section: Library
Fix UnboundLocalError in socket._sendfile_use_sendfile.
..
.. bpo: 28075
.. date: 9354
.. nonce: aLiUs9
.. section: Library
Check for ERROR_ACCESS_DENIED in Windows implementation of os.stat(). Patch
by Eryk Sun.
..
.. bpo: 22493
.. date: 9353
.. nonce: Mv_hZf
.. section: Library
Warning message emitted by using inline flags in the middle of regular
expression now contains a (truncated) regex pattern. Patch by Tim Graham.
..
.. bpo: 25270
.. date: 9352
.. nonce: jrZruM
.. section: Library
Prevent codecs.escape_encode() from raising SystemError when an empty
bytestring is passed.
..
.. bpo: 28181
.. date: 9351
.. nonce: NGc4Yv
.. section: Library
Get antigravity over HTTPS. Patch by Kaartic Sivaraam.
..
.. bpo: 25895
.. date: 9350
.. nonce: j92qoQ
.. section: Library
Enable WebSocket URL schemes in urllib.parse.urljoin. Patch by Gergely Imreh
and Markus Holtermann.
..
.. bpo: 28114
.. date: 9349
.. nonce: gmFXsA
.. section: Library
Fix a crash in parse_envlist() when env contains byte strings. Patch by Eryk
Sun.
..
.. bpo: 27599
.. date: 9348
.. nonce: itvm8T
.. section: Library
Fixed buffer overrun in binascii.b2a_qp() and binascii.a2b_qp().
..
.. bpo: 27906
.. date: 9347
.. nonce: TBBXrv
.. section: Library
Fix socket accept exhaustion during high TCP traffic. Patch by Kevin Conway.
..
.. bpo: 28174
.. date: 9346
.. nonce: CV1UdI
.. section: Library
Handle when SO_REUSEPORT isn't properly supported. Patch by Seth Michael
Larson.
..
.. bpo: 26654
.. date: 9345
.. nonce: XtzTE9
.. section: Library
Inspect functools.partial in asyncio.Handle.__repr__. Patch by iceboy.
..
.. bpo: 26909
.. date: 9344
.. nonce: ASiakT
.. section: Library
Fix slow pipes IO in asyncio. Patch by INADA Naoki.
..
.. bpo: 28176
.. date: 9343
.. nonce: sU8R6L
.. section: Library
Fix callbacks race in asyncio.SelectorLoop.sock_connect.
..
.. bpo: 27759
.. date: 9342
.. nonce: qpMDGq
.. section: Library
Fix selectors incorrectly retain invalid file descriptors. Patch by Mark
Williams.
..
.. bpo: 28368
.. date: 9341
.. nonce: fGl9y4
.. section: Library
Refuse monitoring processes if the child watcher has no loop attached. Patch
by Vincent Michel.
..
.. bpo: 28369
.. date: 9340
.. nonce: 8DTANe
.. section: Library
Raise RuntimeError when transport's FD is used with add_reader, add_writer,
etc.
..
.. bpo: 28370
.. date: 9339
.. nonce: 18jBuZ
.. section: Library
Speedup asyncio.StreamReader.readexactly. Patch by Коренберг Марк.
..
.. bpo: 28371
.. date: 9338
.. nonce: U9Zqdk
.. section: Library
Deprecate passing asyncio.Handles to run_in_executor.
..
.. bpo: 28372
.. date: 9337
.. nonce: njcIPk
.. section: Library
Fix asyncio to support formatting of non-python coroutines.
..
.. bpo: 28399
.. date: 9336
.. nonce: QKIqRX
.. section: Library
Remove UNIX socket from FS before binding. Patch by Коренберг Марк.
..
.. bpo: 27972
.. date: 9335
.. nonce: ZK-GFm
.. section: Library
Prohibit Tasks to await on themselves.
..
.. bpo: 28402
.. date: 9334
.. nonce: v9zETJ
.. section: Windows
Adds signed catalog files for stdlib on Windows.
..
.. bpo: 28333
.. date: 9333
.. nonce: KnpeO4
.. section: Windows
Enables Unicode for ps1/ps2 and input() prompts. (Patch by Eryk Sun)
..
.. bpo: 28251
.. date: 9332
.. nonce: tR_AFs
.. section: Windows
Improvements to help manuals on Windows.
..
.. bpo: 28110
.. date: 9331
.. nonce: cnkP5F
.. section: Windows
launcher.msi has different product codes between 32-bit and 64-bit
..
.. bpo: 28161
.. date: 9330
.. nonce: hF91LI
.. section: Windows
Opening CON for write access fails
..
.. bpo: 28162
.. date: 9329
.. nonce: 3FHPVD
.. section: Windows
WindowsConsoleIO readall() fails if first line starts with Ctrl+Z
..
.. bpo: 28163
.. date: 9328
.. nonce: -DUgJw
.. section: Windows
WindowsConsoleIO fileno() passes wrong flags to _open_osfhandle
..
.. bpo: 28164
.. date: 9327
.. nonce: 5MfN0J
.. section: Windows
_PyIO_get_console_type fails for various paths
..
.. bpo: 28137
.. date: 9326
.. nonce: C1uvzY
.. section: Windows
Renames Windows path file to ._pth
..
.. bpo: 28138
.. date: 9325
.. nonce: pNdv64
.. section: Windows
Windows ._pth file should allow import site
..
.. bpo: 28426
.. date: 9324
.. nonce: zPwvbI
.. section: C API
Deprecated undocumented functions PyUnicode_AsEncodedObject(),
PyUnicode_AsDecodedObject(), PyUnicode_AsDecodedUnicode() and
PyUnicode_AsEncodedUnicode().
..
.. bpo: 28258
.. date: 9323
.. nonce: iKtAHd
.. section: Build
Fixed build with Estonian locale (python-config and distclean targets in
Makefile). Patch by Arfrever Frehtes Taifersar Arahesis.
..
.. bpo: 26661
.. date: 9322
.. nonce: Z_HNbs
.. section: Build
setup.py now detects system libffi with multiarch wrapper.
..
.. bpo: 15819
.. date: 9321
.. nonce: QVDr3E
.. section: Build
Remove redundant include search directory option for building outside the
source tree.
..
.. bpo: 28217
.. date: 9320
.. nonce: Y37OKV
.. section: Tests
Adds _testconsole module to test console input.