cpython/Misc/NEWS.d/3.7.4rc1.rst

1633 lines
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ReStructuredText

.. bpo: 35907
.. date: 2019-05-21-23-20-18
.. nonce: NC_zNK
.. release date: 2019-06-18
.. section: Security
CVE-2019-9948: Avoid file reading by disallowing ``local-file://`` and
``local_file://`` URL schemes in ``URLopener().open()`` and
``URLopener().retrieve()`` of :mod:`urllib.request`.
..
.. bpo: 36742
.. date: 2019-04-29-15-34-59
.. nonce: QCUY0i
.. section: Security
Fixes mishandling of pre-normalization characters in urlsplit().
..
.. bpo: 30458
.. date: 2019-04-10-08-53-30
.. nonce: 51E-DA
.. section: Security
Address CVE-2019-9740 by disallowing URL paths with embedded whitespace or
control characters through into the underlying http client request. Such
potentially malicious header injection URLs now cause an
http.client.InvalidURL exception to be raised.
..
.. bpo: 33529
.. date: 2019-02-24-18-48-16
.. nonce: wpNNBD
.. section: Security
Prevent fold function used in email header encoding from entering infinite
loop when there are too many non-ASCII characters in a header.
..
.. bpo: 35755
.. date: 2019-01-17-10-03-48
.. nonce: GmllIs
.. section: Security
:func:`shutil.which` now uses ``os.confstr("CS_PATH")`` if available and if
the :envvar:`PATH` environment variable is not set. Remove also the current
directory from :data:`posixpath.defpath`. On Unix, :func:`shutil.which` and
the :mod:`subprocess` module no longer search the executable in the current
directory if the :envvar:`PATH` environment variable is not set.
..
.. bpo: 37269
.. date: 2019-06-14-06-32-33
.. nonce: SjVVAe
.. section: Core and Builtins
Fix a bug in the peephole optimizer that was not treating correctly constant
conditions with binary operators. Patch by Pablo Galindo.
..
.. bpo: 37219
.. date: 2019-06-11-01-37-34
.. nonce: jPSufq
.. section: Core and Builtins
Remove errorneous optimization for empty set differences.
..
.. bpo: 26423
.. date: 2019-05-27-18-00-19
.. nonce: RgUOE8
.. section: Core and Builtins
Fix possible overflow in ``wrap_lenfunc()`` when ``sizeof(long) <
sizeof(Py_ssize_t)`` (e.g., 64-bit Windows).
..
.. bpo: 36829
.. date: 2019-05-22-11-44-41
.. nonce: ZmpHR9
.. section: Core and Builtins
:c:func:`PyErr_WriteUnraisable` now displays the exception even if
displaying the traceback failed. Moreover, hold a strong reference to
:data:`sys.stderr` while using it. Document that an exception must be set
when calling :c:func:`PyErr_WriteUnraisable`.
..
.. bpo: 36907
.. date: 2019-05-17-12-28-24
.. nonce: rk7kgp
.. section: Core and Builtins
Fix a crash when calling a C function with a keyword dict (``f(**kwargs)``)
and changing the dict ``kwargs`` while that function is running.
..
.. bpo: 36946
.. date: 2019-05-16-23-53-45
.. nonce: qjxr0Y
.. section: Core and Builtins
Fix possible signed integer overflow when handling slices.
..
.. bpo: 27987
.. date: 2019-05-15-18-28-43
.. nonce: FaxuLy
.. section: Core and Builtins
``PyGC_Head`` structure is aligned to ``long double``. This is needed to
ensure GC-ed objects are aligned properly. Patch by Inada Naoki.
..
.. bpo: 1875
.. date: 2019-05-15-01-29-29
.. nonce: 9oxXFX
.. section: Core and Builtins
A :exc:`SyntaxError` is now raised if a code blocks that will be optimized
away (e.g. if conditions that are always false) contains syntax errors.
Patch by Pablo Galindo. (Reverted in 3.7.4 final by :issue:`37500`.)
..
.. bpo: 28866
.. date: 2019-05-08-16-36-51
.. nonce: qCv_bj
.. section: Core and Builtins
Avoid caching attributes of classes which type defines mro() to avoid a hard
cache invalidation problem.
..
.. bpo: 27639
.. date: 2019-05-07-15-49-17
.. nonce: b1Ah87
.. section: Core and Builtins
Correct return type for UserList slicing operations. Patch by Michael
Blahay, Erick Cervantes, and vaultah
..
.. bpo: 32849
.. date: 2019-04-16-11-56-12
.. nonce: aeSg-D
.. section: Core and Builtins
Fix Python Initialization code on FreeBSD to detect properly when stdin file
descriptor (fd 0) is invalid.
..
.. bpo: 27987
.. date: 2019-04-16-11-52-21
.. nonce: n2_DcQ
.. section: Core and Builtins
pymalloc returns memory blocks aligned by 16 bytes, instead of 8 bytes, on
64-bit platforms to conform x86-64 ABI. Recent compilers assume this
alignment more often. Patch by Inada Naoki.
..
.. bpo: 36504
.. date: 2019-04-02-04-10-32
.. nonce: k_V8Bm
.. section: Core and Builtins
Fix signed integer overflow in _ctypes.c's ``PyCArrayType_new()``.
..
.. bpo: 20844
.. date: 2019-03-29-18-47-50
.. nonce: ge-7SM
.. section: Core and Builtins
Fix running script with encoding cookie and LF line ending may fail on
Windows.
..
.. bpo: 24214
.. date: 2019-03-28-15-22-45
.. nonce: tZ6lYU
.. section: Core and Builtins
Fixed support of the surrogatepass error handler in the UTF-8 incremental
decoder.
..
.. bpo: 36459
.. date: 2019-03-27-22-35-16
.. nonce: UAvkKp
.. section: Core and Builtins
Fix a possible double ``PyMem_FREE()`` due to tokenizer.c's ``tok_nextc()``.
..
.. bpo: 36433
.. date: 2019-03-26-17-23-02
.. nonce: -8XzZf
.. section: Core and Builtins
Fixed TypeError message in classmethoddescr_call.
..
.. bpo: 36430
.. date: 2019-03-25-23-37-26
.. nonce: sd9xxQ
.. section: Core and Builtins
Fix a possible reference leak in :func:`itertools.count`.
..
.. bpo: 36440
.. date: 2019-03-25-13-45-19
.. nonce: gkvzhi
.. section: Core and Builtins
Include node names in ``ParserError`` messages, instead of numeric IDs.
Patch by A. Skrobov.
..
.. bpo: 36421
.. date: 2019-03-24-21-33-22
.. nonce: gJ2Pv9
.. section: Core and Builtins
Fix a possible double decref in _ctypes.c's ``PyCArrayType_new()``.
..
.. bpo: 36256
.. date: 2019-03-21-00-24-18
.. nonce: OZHa0t
.. section: Core and Builtins
Fix bug in parsermodule when parsing a state in a DFA that has two or more
arcs with labels of the same type. Patch by Pablo Galindo.
..
.. bpo: 36236
.. date: 2019-03-19-23-55-00
.. nonce: 5qN9qK
.. section: Core and Builtins
At Python initialization, the current directory is no longer prepended to
:data:`sys.path` if it has been removed.
..
.. bpo: 36262
.. date: 2019-03-11-15-37-33
.. nonce: v3N6Fz
.. section: Core and Builtins
Fix an unlikely memory leak on conversion from string to float in the
function ``_Py_dg_strtod()`` used by ``float(str)``, ``complex(str)``,
:func:`pickle.load`, :func:`marshal.load`, etc.
..
.. bpo: 36218
.. date: 2019-03-07-13-05-43
.. nonce: dZemNt
.. section: Core and Builtins
Fix a segfault occuring when sorting a list of heterogeneous values. Patch
contributed by Rémi Lapeyre and Elliot Gorokhovsky.
..
.. bpo: 36035
.. date: 2019-02-22-14-30-19
.. nonce: -6dy1y
.. section: Core and Builtins
Added fix for broken symlinks in combination with pathlib
..
.. bpo: 18372
.. date: 2018-12-08-03-40-43
.. nonce: DT1nR0
.. section: Core and Builtins
Add missing :c:func:`PyObject_GC_Track` calls in the :mod:`pickle` module.
Patch by Zackery Spytz.
..
.. bpo: 34408
.. date: 2018-08-14-22-35-19
.. nonce: aomWYW
.. section: Core and Builtins
Prevent a null pointer dereference and resource leakage in
``PyInterpreterState_New()``.
..
.. bpo: 37280
.. date: 2019-06-14-13-30-47
.. nonce: Fxur0F
.. section: Library
Use threadpool for reading from file for sendfile fallback mode.
..
.. bpo: 37279
.. date: 2019-06-14-13-25-56
.. nonce: OHlW6l
.. section: Library
Fix asyncio sendfile support when sendfile sends extra data in fallback
mode.
..
.. bpo: 19865
.. date: 2019-06-14-08-30-16
.. nonce: FRGH4I
.. section: Library
:func:`ctypes.create_unicode_buffer()` now also supports non-BMP characters
on platforms with 16-bit :c:type:`wchar_t` (for example, Windows and AIX).
..
.. bpo: 35922
.. date: 2019-06-11-19-34-29
.. nonce: rxpzWr
.. section: Library
Fix :meth:`RobotFileParser.crawl_delay` and
:meth:`RobotFileParser.request_rate` to return ``None`` rather than raise
:exc:`AttributeError` when no relevant rule is defined in the robots.txt
file. Patch by Rémi Lapeyre.
..
.. bpo: 36607
.. date: 2019-06-11-13-52-04
.. nonce: 5_mJkQ
.. section: Library
Eliminate :exc:`RuntimeError` raised by :func:`asyncio.all_tasks()` if
internal tasks weak set is changed by another thread during iteration.
..
.. bpo: 36402
.. date: 2019-06-11-00-35-02
.. nonce: b0IJVp
.. section: Library
Fix a race condition at Python shutdown when waiting for threads. Wait until
the Python thread state of all non-daemon threads get deleted (join all
non-daemon threads), rather than just wait until non-daemon Python threads
complete.
..
.. bpo: 34886
.. date: 2019-06-08-16-03-19
.. nonce: Ov-pc9
.. section: Library
Fix an unintended ValueError from :func:`subprocess.run` when checking for
conflicting `input` and `stdin` or `capture_output` and `stdout` or `stderr`
args when they were explicitly provided but with `None` values within a
passed in `**kwargs` dict rather than as passed directly by name. Patch
contributed by Rémi Lapeyre.
..
.. bpo: 37173
.. date: 2019-06-08-11-33-48
.. nonce: 0e_8gS
.. section: Library
The exception message for ``inspect.getfile()`` now correctly reports the
passed class rather than the builtins module.
..
.. bpo: 12639
.. date: 2019-05-30-16-16-47
.. nonce: TQFOR4
.. section: Library
:meth:`msilib.Directory.start_component()` no longer fails if *keyfile* is
not ``None``.
..
.. bpo: 36520
.. date: 2019-05-28-02-37-00
.. nonce: W4tday
.. section: Library
Lengthy email headers with UTF-8 characters are now properly encoded when
they are folded. Patch by Jeffrey Kintscher.
..
.. bpo: 37054
.. date: 2019-05-28-01-06-44
.. nonce: sLULGQ
.. section: Library
Fix destructor :class:`_pyio.BytesIO` and :class:`_pyio.TextIOWrapper`:
initialize their ``_buffer`` attribute as soon as possible (in the class
body), because it's used by ``__del__()`` which calls ``close()``.
..
.. bpo: 30835
.. date: 2019-05-27-15-29-46
.. nonce: 3FoaWH
.. section: Library
Fixed a bug in email parsing where a message with invalid bytes in
content-transfer-encoding of a multipart message can cause an
AttributeError. Patch by Andrew Donnellan.
..
.. bpo: 37035
.. date: 2019-05-24-18-16-07
.. nonce: HFbJVT
.. section: Library
Don't log OSError based exceptions if a fatal error has occurred in asyncio
transport. Peer can generate almost any OSError, user cannot avoid these
exceptions by fixing own code. Errors are still propagated to user code,
it's just logging them is pointless and pollute asyncio logs.
..
.. bpo: 37008
.. date: 2019-05-22-15-26-08
.. nonce: WPbv31
.. section: Library
Add support for calling :func:`next` with the mock resulting from
:func:`unittest.mock.mock_open`
..
.. bpo: 27737
.. date: 2019-05-22-02-25-31
.. nonce: 7bgKpa
.. section: Library
Allow whitespace only header encoding in ``email.header`` - by Batuhan
Taskaya
..
.. bpo: 36969
.. date: 2019-05-20-23-31-20
.. nonce: JkZORP
.. section: Library
PDB command `args` now display keyword only arguments. Patch contributed by
Rémi Lapeyre.
..
.. bpo: 36983
.. date: 2019-05-20-20-41-30
.. nonce: hz-fLr
.. section: Library
Add missing names to ``typing.__all__``: ``ChainMap``, ``ForwardRef``,
``OrderedDict`` - by Anthony Sottile.
..
.. bpo: 21315
.. date: 2019-05-19-10-48-46
.. nonce: PgXVqF
.. section: Library
Email headers containing RFC2047 encoded words are parsed despite the
missing whitespace, and a defect registered. Also missing trailing
whitespace after encoded words is now registered as a defect.
..
.. bpo: 33524
.. date: 2019-05-17-11-44-21
.. nonce: 8y_xUU
.. section: Library
Fix the folding of email header when the max_line_length is 0 or None and
the header contains non-ascii characters. Contributed by Licht Takeuchi
(@Licht-T).
..
.. bpo: 24564
.. date: 2019-05-16-23-40-36
.. nonce: lIwV_7
.. section: Library
:func:`shutil.copystat` now ignores :const:`errno.EINVAL` on
:func:`os.setxattr` which may occur when copying files on filesystems
without extended attributes support.
Original patch by Giampaolo Rodola, updated by Ying Wang.
..
.. bpo: 36845
.. date: 2019-05-14-07-57-02
.. nonce: _GtFFf
.. section: Library
Added validation of integer prefixes to the construction of IP networks and
interfaces in the ipaddress module.
..
.. bpo: 35545
.. date: 2019-05-11-16-21-29
.. nonce: FcvJvP
.. section: Library
Fix asyncio discarding IPv6 scopes when ensuring hostname resolutions
internally
..
.. bpo: 35070
.. date: 2019-05-09-18-50-55
.. nonce: 4vaqNL
.. section: Library
posix.getgrouplist() now works correctly when the user belongs to
NGROUPS_MAX supplemental groups. Patch by Jeffrey Kintscher.
..
.. bpo: 24538
.. date: 2019-05-09-08-35-18
.. nonce: WK8Y-k
.. section: Library
In `shutil.copystat()`, first copy extended file attributes and then file
permissions, since extended attributes can only be set on the destination
while it is still writeable.
..
.. bpo: 33110
.. date: 2019-05-06-22-34-47
.. nonce: rSJSCh
.. section: Library
Handle exceptions raised by functions added by concurrent.futures
add_done_callback correctly when the Future has already completed.
..
.. bpo: 26903
.. date: 2019-05-06-19-17-04
.. nonce: 4payXb
.. section: Library
Limit `max_workers` in `ProcessPoolExecutor` to 61 to work around a
WaitForMultipleObjects limitation.
..
.. bpo: 36813
.. date: 2019-05-06-18-28-38
.. nonce: NXD0KZ
.. section: Library
Fix :class:`~logging.handlers.QueueListener` to call ``queue.task_done()``
upon stopping. Patch by Bar Harel.
..
.. bpo: 36734
.. date: 2019-04-26-17-14-20
.. nonce: p2MaiN
.. section: Library
Fix compilation of ``faulthandler.c`` on HP-UX. Initialize ``stack_t
current_stack`` to zero using ``memset()``.
..
.. bpo: 29183
.. date: 2019-04-22-22-55-29
.. nonce: MILvsk
.. section: Library
Fix double exceptions in :class:`wsgiref.handlers.BaseHandler` by calling
its :meth:`~wsgiref.handlers.BaseHandler.close` method only when no
exception is raised.
..
.. bpo: 36650
.. date: 2019-04-19-15-29-55
.. nonce: _EVdrz
.. section: Library
The C version of functools.lru_cache() was treating calls with an empty
``**kwargs`` dictionary as being distinct from calls with no keywords at
all. This did not result in an incorrect answer, but it did trigger an
unexpected cache miss.
..
.. bpo: 28552
.. date: 2019-04-18-16-10-29
.. nonce: MW1TLt
.. section: Library
Fix :mod:`distutils.sysconfig` if :data:`sys.executable` is ``None`` or an
empty string: use :func:`os.getcwd` to initialize ``project_base``. Fix
also the distutils build command: don't use :data:`sys.executable` if it is
``None`` or an empty string.
..
.. bpo: 35755
.. date: 2019-04-16-17-50-39
.. nonce: Fg4EXb
.. section: Library
:func:`shutil.which` and :func:`distutils.spawn.find_executable` now use
``os.confstr("CS_PATH")`` if available instead of :data:`os.defpath`, if the
``PATH`` environment variable is not set. Moreover, don't use
``os.confstr("CS_PATH")`` nor :data:`os.defpath` if the ``PATH`` environment
variable is set to an empty string.
..
.. bpo: 36613
.. date: 2019-04-12-13-52-15
.. nonce: hqT1qn
.. section: Library
Fix :mod:`asyncio` wait() not removing callback if exception
..
.. bpo: 36598
.. date: 2019-04-11-22-11-24
.. nonce: hfzDUl
.. section: Library
Fix ``isinstance`` check for Mock objects with spec when the code is
executed under tracing. Patch by Karthikeyan Singaravelan.
..
.. bpo: 36533
.. date: 2019-04-06-00-55-09
.. nonce: kzMyRH
.. section: Library
Reinitialize logging.Handler locks in forked child processes instead of
attempting to acquire them all in the parent before forking only to be
released in the child process. The acquire/release pattern was leading to
deadlocks in code that has implemented any form of chained logging handlers
that depend upon one another as the lock acquision order cannot be
guaranteed.
..
.. bpo: 36522
.. date: 2019-04-03-20-46-47
.. nonce: g5x3By
.. section: Library
If *debuglevel* is set to >0 in :mod:`http.client`, print all values for
headers with multiple values for the same header name. Patch by Matt
Houglum.
..
.. bpo: 36492
.. date: 2019-03-31-10-21-54
.. nonce: f7vyUs
.. section: Library
Arbitrary keyword arguments (even with names "self" and "func") can now be
passed to some functions which should accept arbitrary keyword arguments and
pass them to other function (for example partialmethod(),
TestCase.addCleanup() and Profile.runcall()) if the required arguments are
passed as positional arguments.
..
.. bpo: 36434
.. date: 2019-03-26-14-20-59
.. nonce: PTdidw
.. section: Library
Errors during writing to a ZIP file no longer prevent to properly close it.
..
.. bpo: 34745
.. date: 2019-03-17-16-43-29
.. nonce: nOfm7_
.. section: Library
Fix :mod:`asyncio` ssl memory issues caused by circular references
..
.. bpo: 36321
.. date: 2019-03-16-13-40-59
.. nonce: s6crQx
.. section: Library
collections.namedtuple() misspelled the name of an attribute. To be
consistent with typing.NamedTuple, the attribute name should have been
"_field_defaults" instead of "_fields_defaults". For backwards
compatibility, both spellings are now created. The misspelled version may
be removed in the future.
..
.. bpo: 36272
.. date: 2019-03-13-14-14-36
.. nonce: f3l2IG
.. section: Library
:mod:`logging` does not silently ignore RecursionError anymore. Patch
contributed by Rémi Lapeyre.
..
.. bpo: 36235
.. date: 2019-03-08-13-32-21
.. nonce: _M72wU
.. section: Library
Fix ``CFLAGS`` in ``customize_compiler()`` of ``distutils.sysconfig``: when
the ``CFLAGS`` environment variable is defined, don't override ``CFLAGS``
variable with the ``OPT`` variable anymore. Initial patch written by David
Malcolm.
..
.. bpo: 35125
.. date: 2019-02-15-17-18-50
.. nonce: h0xk0f
.. section: Library
Asyncio: Remove inner callback on outer cancellation in shield
..
.. bpo: 35802
.. date: 2019-01-21-13-56-55
.. nonce: 6633PE
.. section: Library
Clean up code which checked presence of ``os.stat`` / ``os.lstat`` /
``os.chmod`` which are always present. Patch by Anthony Sottile.
..
.. bpo: 23078
.. date: 2019-01-18-23-10-10
.. nonce: l4dFoj
.. section: Library
Add support for :func:`classmethod` and :func:`staticmethod` to
:func:`unittest.mock.create_autospec`. Initial patch by Felipe Ochoa.
..
.. bpo: 35721
.. date: 2019-01-18-16-23-00
.. nonce: d8djAJ
.. section: Library
Fix :meth:`asyncio.SelectorEventLoop.subprocess_exec()` leaks file
descriptors if ``Popen`` fails and called with ``stdin=subprocess.PIPE``.
Patch by Niklas Fiekas.
..
.. bpo: 35726
.. date: 2019-01-13-01-33-00
.. nonce: dasdas
.. section: Library
QueueHandler.prepare() now makes a copy of the record before modifying and
enqueueing it, to avoid affecting other handlers in the chain.
..
.. bpo: 31855
.. date: 2019-01-11-17-09-15
.. nonce: PlhfsX
.. section: Library
:func:`unittest.mock.mock_open` results now respects the argument of
read([size]). Patch contributed by Rémi Lapeyre.
..
.. bpo: 35082
.. date: 2018-10-27-11-54-12
.. nonce: HDj1nr
.. section: Library
Don't return deleted attributes when calling dir on a
:class:`unittest.mock.Mock`.
..
.. bpo: 34547
.. date: 2018-10-05-16-01-00
.. nonce: abbaa
.. section: Library
:class:`wsgiref.handlers.BaseHandler` now handles abrupt client connection
terminations gracefully. Patch by Petter Strandmark.
..
.. bpo: 34424
.. date: 2018-08-18-14-47-00
.. nonce: wAlRuS
.. section: Library
Fix serialization of messages containing encoded strings when the
policy.linesep is set to a multi-character string. Patch by Jens Troeger.
..
.. bpo: 33361
.. date: 2018-07-13-20-17-17
.. nonce: dx2NVn
.. section: Library
Fix a bug in :class:`codecs.StreamRecoder` where seeking might leave old
data in a buffer and break subsequent read calls. Patch by Ammar Askar.
..
.. bpo: 31922
.. date: 2018-05-30-01-05-50
.. nonce: fobsXJ
.. section: Library
:meth:`asyncio.AbstractEventLoop.create_datagram_endpoint`: Do not connect
UDP socket when broadcast is allowed. This allows to receive replies after a
UDP broadcast.
..
.. bpo: 22102
.. date: 2018-03-08-16-15-00
.. nonce: th33uD
.. section: Library
Added support for ZIP files with disks set to 0. Such files are commonly
created by builtin tools on Windows when use ZIP64 extension. Patch by
Francisco Facioni.
..
.. bpo: 27141
.. date: 2017-10-24-00-42-14
.. nonce: zbAgSs
.. section: Library
Added a ``__copy__()`` to ``collections.UserList`` and
``collections.UserDict`` in order to correctly implement shallow copying of
the objects. Patch by Bar Harel.
..
.. bpo: 31829
.. date: 2017-10-21-12-07-56
.. nonce: 6IhP-O
.. section: Library
``\r``, ``\0`` and ``\x1a`` (end-of-file on Windows) are now escaped in
protocol 0 pickles of Unicode strings. This allows to load them without loss
from files open in text mode in Python 2.
..
.. bpo: 31292
.. date: 2017-08-30-20-27-00
.. nonce: dKIaZb
.. section: Library
Fix ``setup.py check --restructuredtext`` for files containing ``include``
directives.
..
.. bpo: 23395
.. date: 2016-07-27-11-06-43
.. nonce: MuCEX9
.. section: Library
``_thread.interrupt_main()`` now avoids setting the Python error status if
the ``SIGINT`` signal is ignored or not handled by Python.
..
.. bpo: 34903
.. date: 2019-06-17-09-36-46
.. nonce: r_wGRc
.. section: Documentation
Documented that in :meth:`datetime.datetime.strptime()`, the leading zero in
some two-digit formats is optional. Patch by Mike Gleen.
..
.. bpo: 36984
.. date: 2019-05-20-22-21-17
.. nonce: IjZlmS
.. section: Documentation
Improve version added references in ``typing`` module - by Anthony Sottile.
..
.. bpo: 36868
.. date: 2019-05-11-17-42-15
.. nonce: yioL0R
.. section: Documentation
What's new now mentions SSLContext.hostname_checks_common_name instead of
SSLContext.host_flags.
..
.. bpo: 36783
.. date: 2019-05-07-02-30-51
.. nonce: gpC8E2
.. section: Documentation
Added C API Documentation for Time_FromTimeAndFold and
PyDateTime_FromDateAndTimeAndFold as per PEP 495. Patch by Edison Abahurire.
..
.. bpo: 30840
.. date: 2019-04-14-19-46-21
.. nonce: R-JFzw
.. section: Documentation
Document relative imports
..
.. bpo: 36523
.. date: 2019-04-04-19-11-47
.. nonce: sG1Tr4
.. section: Documentation
Add docstring for io.IOBase.writelines().
..
.. bpo: 36425
.. date: 2019-03-27-22-46-00
.. nonce: kG9gx1
.. section: Documentation
New documentation translation: `Simplified Chinese
<https://docs.python.org/zh-cn/>`_.
..
.. bpo: 36157
.. date: 2019-03-08-15-39-47
.. nonce: nF1pP1
.. section: Documentation
Added Documention for PyInterpreterState_Main().
..
.. bpo: 36138
.. date: 2019-03-02-00-40-57
.. nonce: yfjNzG
.. section: Documentation
Improve documentation about converting datetime.timedelta to scalars.
..
.. bpo: 22865
.. date: 2019-02-21-18-13-50
.. nonce: 6hg6J8
.. section: Documentation
Add detail to the documentation on the `pty.spawn` function.
..
.. bpo: 35581
.. date: 2018-12-25-12-56-57
.. nonce: aA7r6T
.. section: Documentation
@typing.type_check_only now allows type stubs to mark functions and classes
not available during runtime.
..
.. bpo: 35564
.. date: 2018-12-22-22-52-05
.. nonce: TuEU_D
.. section: Documentation
Explicitly set master_doc variable in conf.py for compliance with Sphinx 2.0
..
.. bpo: 10536
.. date: 2018-11-04-22-03-56
.. nonce: a0IsfE
.. section: Documentation
Enhance the gettext docs. Patch by Éric Araujo
..
.. bpo: 32995
.. date: 2018-10-07-03-04-57
.. nonce: TXN9ur
.. section: Documentation
Added the context variable in glossary.
..
.. bpo: 33832
.. date: 2018-06-15-15-57-37
.. nonce: xBFhKw
.. section: Documentation
Add glossary entry for 'magic method'.
..
.. bpo: 33482
.. date: 2018-05-13-10-36-37
.. nonce: jalAaQ
.. section: Documentation
Make `codecs.StreamRecoder.writelines` take a list of bytes.
..
.. bpo: 25735
.. date: 2018-04-08-19-09-22
.. nonce: idVQBD
.. section: Documentation
Added documentation for func factorial to indicate that returns integer
values
..
.. bpo: 35998
.. date: 2019-06-14-17-05-49
.. nonce: yX82oD
.. section: Tests
Avoid TimeoutError in test_asyncio: test_start_tls_server_1()
..
.. bpo: 37153
.. date: 2019-06-04-18-30-39
.. nonce: 711INB
.. section: Tests
``test_venv.test_mutiprocessing()`` now explicitly calls
``pool.terminate()`` to wait until the pool completes.
..
.. bpo: 37081
.. date: 2019-05-28-17-48-22
.. nonce: qxB-1l
.. section: Tests
Test with OpenSSL 1.1.1c
..
.. bpo: 36915
.. date: 2019-05-14-14-12-24
.. nonce: 58b7pH
.. section: Tests
The main regrtest process now always removes all temporary directories of
worker processes even if they crash or if they are killed on
KeyboardInterrupt (CTRL+c).
..
.. bpo: 36719
.. date: 2019-05-10-01-50-30
.. nonce: O84ZWv
.. section: Tests
"python3 -m test -jN ..." now continues the execution of next tests when a
worker process crash (CHILD_ERROR state). Previously, the test suite stopped
immediately. Use --failfast to stop at the first error.
..
.. bpo: 36816
.. date: 2019-05-08-15-55-46
.. nonce: WBKRGZ
.. section: Tests
Update Lib/test/selfsigned_pythontestdotnet.pem to match
self-signed.pythontest.net's new TLS certificate.
..
.. bpo: 35925
.. date: 2019-05-06-18-29-54
.. nonce: gwQPuC
.. section: Tests
Skip httplib and nntplib networking tests when they would otherwise fail due
to a modern OS or distro with a default OpenSSL policy of rejecting
connections to servers with weak certificates.
..
.. bpo: 36719
.. date: 2019-04-26-09-02-49
.. nonce: ys2uqH
.. section: Tests
regrtest now always detects uncollectable objects. Previously, the check was
only enabled by ``--findleaks``. The check now also works with
``-jN/--multiprocess N``. ``--findleaks`` becomes a deprecated alias to
``--fail-env-changed``.
..
.. bpo: 36725
.. date: 2019-04-26-04-12-29
.. nonce: B8-ghi
.. section: Tests
When using mulitprocessing mode (-jN), regrtest now better reports errors if
a worker process fails, and it exits immediately on a worker thread failure
or when interrupted.
..
.. bpo: 36454
.. date: 2019-04-23-17-48-11
.. nonce: 0q4lQz
.. section: Tests
Change test_time.test_monotonic() to test only the lower bound of elapsed
time after a sleep command rather than the upper bound. This prevents
unnecessary test failures on slow buildbots. Patch by Victor Stinner.
..
.. bpo: 36629
.. date: 2019-04-15-11-57-39
.. nonce: ySnaL3
.. section: Tests
Fix ``test_imap4_host_default_value()`` of ``test_imaplib``: catch also
:data:`errno.ENETUNREACH` error.
..
.. bpo: 36611
.. date: 2019-04-12-12-44-42
.. nonce: UtorXL
.. section: Tests
Fix ``test_sys.test_getallocatedblocks()`` when :mod:`tracemalloc` is
enabled.
..
.. bpo: 36560
.. date: 2019-04-09-14-08-02
.. nonce: _ejeOr
.. section: Tests
Fix reference leak hunting in regrtest: compute also deltas (of reference
count, allocated memory blocks, file descriptor count) during warmup, to
ensure that everything is initialized before starting to hunt reference
leaks.
..
.. bpo: 36565
.. date: 2019-04-08-19-01-21
.. nonce: 2bxgtU
.. section: Tests
Fix reference hunting (``python3 -m test -R 3:3``) when Python has no
built-in abc module.
..
.. bpo: 36436
.. date: 2019-03-26-13-49-21
.. nonce: yAtN0V
.. section: Tests
Fix ``_testcapi.pymem_buffer_overflow()``: handle memory allocation failure.
..
.. bpo: 36605
.. date: 2019-04-11-18-50-58
.. nonce: gk5czf
.. section: Build
``make tags`` and ``make TAGS`` now also parse ``Modules/_io/*.c`` and
``Modules/_io/*.h``.
..
.. bpo: 36508
.. date: 2019-04-02-17-01-23
.. nonce: SN5Y6N
.. section: Build
``python-config --ldflags`` no longer includes flags of the
``LINKFORSHARED`` variable. The ``LINKFORSHARED`` variable must only be used
to build executables.
..
.. bpo: 34631
.. date: 2019-06-17-09-34-25
.. nonce: DBfM4j
.. section: Windows
Updated OpenSSL to 1.1.1c in Windows installer
..
.. bpo: 37267
.. date: 2019-06-13-04-15-51
.. nonce: Ygo5ef
.. section: Windows
On Windows, :func:`os.dup` no longer creates an inheritable fd when handling
a character file.
..
.. bpo: 36779
.. date: 2019-06-11-15-41-34
.. nonce: 0TMw6f
.. section: Windows
Ensure ``time.tzname`` is correct on Windows when the active code page is
set to CP_UTF7 or CP_UTF8.
..
.. bpo: 36965
.. date: 2019-05-20-20-26-36
.. nonce: KsfI-N
.. section: Windows
include of STATUS_CONTROL_C_EXIT without depending on MSC compiler
..
.. bpo: 36649
.. date: 2019-04-17-11-39-24
.. nonce: arbzIo
.. section: Windows
Remove trailing spaces for registry keys when installed via the Store.
..
.. bpo: 34144
.. date: 2019-04-10-04-35-31
.. nonce: _KzB5z
.. section: Windows
Fixed activate.bat to correctly update codepage when chcp.com returns dots
in output. Patch by Lorenz Mende.
..
.. bpo: 35941
.. date: 2019-03-28-03-51-16
.. nonce: UnlAEE
.. section: Windows
enum_certificates function of the ssl module now returns certificates from
all available certificate stores inside windows in a query instead of
returning only certificates from the system wide certificate store. This
includes certificates from these certificate stores: local machine, local
machine enterprise, local machine group policy, current user, current user
group policy, services, users. ssl.enum_crls() function is changed in the
same way to return all certificate revocation lists inside the windows
certificate revocation list stores.
..
.. bpo: 36441
.. date: 2019-03-26-11-46-15
.. nonce: lYjGF1
.. section: Windows
Fixes creating a venv when debug binaries are installed.
..
.. bpo: 36312
.. date: 2019-03-16-16-51-17
.. nonce: Niwm-T
.. section: Windows
Fixed decoders for the following code pages: 50220, 50221, 50222, 50225,
50227, 50229, 57002 through 57011, 65000 and 42.
..
.. bpo: 36010
.. date: 2019-03-16-10-24-58
.. nonce: dttWfp
.. section: Windows
Add the venv standard library module to the nuget distribution for Windows.
..
.. bpo: 34060
.. date: 2018-07-20-13-09-19
.. nonce: v-z87j
.. section: Windows
Report system load when running test suite on Windows. Patch by Ammar Askar.
Based on prior work by Jeremy Kloth.
..
.. bpo: 35360
.. date: 2019-06-18-08-58-30
.. nonce: -CWbfy
.. section: macOS
Update macOS installer to use SQLite 3.28.0.
..
.. bpo: 34631
.. date: 2019-06-18-00-30-40
.. nonce: vSifcv
.. section: macOS
Updated OpenSSL to 1.1.1c in macOS installer.
..
.. bpo: 36231
.. date: 2019-06-03-05-49-49
.. nonce: RfmW_p
.. section: macOS
Support building Python on macOS without /usr/include installed. As of macOS
10.14, system header files are only available within an SDK provided by
either the Command Line Tools or the Xcode app.
..
.. bpo: 34602
.. date: 2019-04-29-10-54-14
.. nonce: Lrl2zU
.. section: macOS
Avoid failures setting macOS stack resource limit with resource.setrlimit.
This reverts an earlier fix for bpo-18075 which forced a non-default stack
size when building the interpreter executable on macOS.
..
.. bpo: 37321
.. date: 2019-06-17-16-35-30
.. nonce: zVTTGS
.. section: IDLE
Both subprocess connection error messages now refer to the 'Startup failure'
section of the IDLE doc.
..
.. bpo: 37177
.. date: 2019-06-07-00-17-41
.. nonce: voU6pQ
.. section: IDLE
Properly 'attach' search dialogs to their main window so that they behave
like other dialogs and do not get hidden behind their main window.
..
.. bpo: 37039
.. date: 2019-06-04-23-27-33
.. nonce: FN_fBf
.. section: IDLE
Adjust "Zoom Height" to individual screens by momemtarily maximizing the
window on first use with a particular screen. Changing screen settings may
invalidate the saved height. While a window is maximized, "Zoom Height" has
no effect.
..
.. bpo: 35763
.. date: 2019-06-04-20-36-24
.. nonce: 7XdoWz
.. section: IDLE
Make calltip reminder about '/' meaning positional-only less obtrusive by
only adding it when there is room on the first line.
..
.. bpo: 5680
.. date: 2019-06-03-00-39-29
.. nonce: VCQfOO
.. section: IDLE
Add 'Run... Customized' to the Run menu to run a module with customized
settings. Any 'command line arguments' entered are added to sys.argv. One
can suppress the normal Shell main module restart.
..
.. bpo: 35610
.. date: 2019-06-02-14-10-52
.. nonce: 0w_v6Y
.. section: IDLE
Replace now redundant .context_use_ps1 with .prompt_last_line. This finishes
change started in bpo-31858.
..
.. bpo: 37038
.. date: 2019-05-24-18-57-57
.. nonce: AJ3RwQ
.. section: IDLE
Make idlelib.run runnable; add test clause.
..
.. bpo: 36958
.. date: 2019-05-19-22-02-22
.. nonce: DZUC6G
.. section: IDLE
Print any argument other than None or int passed to SystemExit or
sys.exit().
..
.. bpo: 13102
.. date: 2019-05-05-16-27-53
.. nonce: AGNWYJ
.. section: IDLE
When saving a file, call os.fsync() so bits are flushed to e.g. USB drive.
..
.. bpo: 36429
.. date: 2019-03-26-00-09-50
.. nonce: w-jL2e
.. section: IDLE
Fix starting IDLE with pyshell. Add idlelib.pyshell alias at top; remove
pyshell alias at bottom. Remove obsolete __name__=='__main__' command.
..
.. bpo: 36405
.. date: 2019-03-23-01-45-56
.. nonce: m7Wv1F
.. section: IDLE
Use dict unpacking in idlelib.
..
.. bpo: 36396
.. date: 2019-03-21-22-43-21
.. nonce: xSTX-I
.. section: IDLE
Remove fgBg param of idlelib.config.GetHighlight(). This param was only used
twice and changed the return type.
..
.. bpo: 23205
.. date: 2019-03-06-14-47-57
.. nonce: Vv0gfH
.. section: IDLE
For the grep module, add tests for findfiles, refactor findfiles to be a
module-level function, and refactor findfiles to use os.walk.
..
.. bpo: 23216
.. date: 2019-03-02-19-39-53
.. nonce: ZA7H8H
.. section: IDLE
Add docstrings to IDLE search modules.
..
.. bpo: 30348
.. date: 2018-06-27-21-18-41
.. nonce: WbaRJW
.. section: IDLE
Increase test coverage of idlelib.autocomplete by 30%.
..
.. bpo: 32411
.. date: 2017-12-25-18-48-50
.. nonce: vNwDhe
.. section: IDLE
In browser.py, remove extraneous sorting by line number since dictionary was
created in line number order.
..
.. bpo: 14546
.. date: 2019-04-30-14-30-29
.. nonce: r38Y-6
.. section: Tools/Demos
Fix the argument handling in Tools/scripts/lll.py.
..
.. bpo: 32217
.. date: 2017-12-19-20-42-36
.. nonce: axXcjA
.. section: Tools/Demos
Fix freeze script on Windows.
..
.. bpo: 28805
.. date: 2019-06-14-14-03-51
.. nonce: qZC0N_
.. section: C API
The :const:`METH_FASTCALL` calling convention has been documented.
..
.. bpo: 37170
.. date: 2019-06-06-08-47-04
.. nonce: hO_fpM
.. section: C API
Fix the cast on error in :c:func:`PyLong_AsUnsignedLongLongMask()`.
..
.. bpo: 36389
.. date: 2019-04-11-12-20-35
.. nonce: P9QFoP
.. section: C API
Change the value of ``CLEANBYTE``, ``DEADDYTE`` and ``FORBIDDENBYTE``
internal constants used by debug hooks on Python memory allocators
(:c:func:`PyMem_SetupDebugHooks` function). Byte patterns ``0xCB``, ``0xDB``
and ``0xFB`` have been replaced with ``0xCD``, ``0xDD`` and ``0xFD`` to use
the same values than Windows CRT debug ``malloc()`` and ``free()``.