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Commit 3b43bfaa authored by Ned Deily's avatar Ned Deily
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Update docs for 3.7.0a4

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Lib/pydoc_data/topics.py
View file @ 3b43bfaa
# -*- coding: utf-8 -*-
# Autogenerated by Sphinx on Tue Dec 5 03:14:53 2017
# Autogenerated by Sphinx on Mon Jan 8 21:23:03 2018
topics = {'assert': 'The "assert" statement\n'
'**********************\n'
'\n'
......@@ -571,6 +571,65 @@ topics = {'assert': 'The "assert" statement\n'
' sorts it.\n'
'\n'
'\n'
'Customizing module attribute access\n'
'===================================\n'
'\n'
'Special names "__getattr__" and "__dir__" can be also '
'used to\n'
'customize access to module attributes. The "__getattr__" '
'function at\n'
'the module level should accept one argument which is the '
'name of an\n'
'attribute and return the computed value or raise an '
'"AttributeError".\n'
'If an attribute is not found on a module object through '
'the normal\n'
'lookup, i.e. "object.__getattribute__()", then '
'"__getattr__" is\n'
'searched in the module "__dict__" before raising an '
'"AttributeError".\n'
'If found, it is called with the attribute name and the '
'result is\n'
'returned.\n'
'\n'
'The "__dir__" function should accept no arguments, and '
'return a list\n'
'of strings that represents the names accessible on '
'module. If present,\n'
'this function overrides the standard "dir()" search on a '
'module.\n'
'\n'
'For a more fine grained customization of the module '
'behavior (setting\n'
'attributes, properties, etc.), one can set the '
'"__class__" attribute\n'
'of a module object to a subclass of "types.ModuleType". '
'For example:\n'
'\n'
' import sys\n'
' from types import ModuleType\n'
'\n'
' class VerboseModule(ModuleType):\n'
' def __repr__(self):\n'
" return f'Verbose {self.__name__}'\n"
'\n'
' def __setattr__(self, attr, value):\n'
" print(f'Setting {attr}...')\n"
' setattr(self, attr, value)\n'
'\n'
' sys.modules[__name__].__class__ = VerboseModule\n'
'\n'
'Note: Defining module "__getattr__" and setting module '
'"__class__"\n'
' only affect lookups made using the attribute access '
'syntax --\n'
' directly accessing the module globals (whether by code '
'within the\n'
" module, or via a reference to the module's globals "
'dictionary) is\n'
' unaffected.\n'
'\n'
'\n'
'Implementing Descriptors\n'
'========================\n'
'\n'
......@@ -2905,63 +2964,52 @@ topics = {'assert': 'The "assert" statement\n'
'\n'
' Called when the instance is about to be destroyed. This '
'is also\n'
' called a destructor. If a base class has a "__del__()" '
'method, the\n'
' derived class\'s "__del__()" method, if any, must '
'explicitly call it\n'
' to ensure proper deletion of the base class part of the '
'instance.\n'
' Note that it is possible (though not recommended!) for '
'the\n'
' "__del__()" method to postpone destruction of the '
'instance by\n'
' creating a new reference to it. It may then be called '
'at a later\n'
' time when this new reference is deleted. It is not '
'guaranteed that\n'
' "__del__()" methods are called for objects that still '
'exist when\n'
' the interpreter exits.\n'
' called a finalizer or (improperly) a destructor. If a '
'base class\n'
' has a "__del__()" method, the derived class\'s '
'"__del__()" method,\n'
' if any, must explicitly call it to ensure proper '
'deletion of the\n'
' base class part of the instance.\n'
'\n'
' It is possible (though not recommended!) for the '
'"__del__()" method\n'
' to postpone destruction of the instance by creating a '
'new reference\n'
' to it. This is called object *resurrection*. It is\n'
' implementation-dependent whether "__del__()" is called a '
'second\n'
' time when a resurrected object is about to be destroyed; '
'the\n'
' current *CPython* implementation only calls it once.\n'
'\n'
' It is not guaranteed that "__del__()" methods are called '
'for\n'
' objects that still exist when the interpreter exits.\n'
'\n'
' Note: "del x" doesn\'t directly call "x.__del__()" --- '
'the former\n'
' decrements the reference count for "x" by one, and the '
'latter is\n'
' only called when "x"\'s reference count reaches zero. '
'Some common\n'
' situations that may prevent the reference count of an '
'object from\n'
' going to zero include: circular references between '
'objects (e.g.,\n'
' a doubly-linked list or a tree data structure with '
'parent and\n'
' child pointers); a reference to the object on the '
'stack frame of\n'
' a function that caught an exception (the traceback '
'stored in\n'
' "sys.exc_info()[2]" keeps the stack frame alive); or a '
' only called when "x"\'s reference count reaches zero.\n'
'\n'
' **CPython implementation detail:** It is possible for a '
'reference\n'
' to the object on the stack frame that raised an '
'unhandled\n'
' exception in interactive mode (the traceback stored '
'in\n'
' "sys.last_traceback" keeps the stack frame alive). '
'The first\n'
' situation can only be remedied by explicitly breaking '
'the cycles;\n'
' the second can be resolved by freeing the reference to '
'the\n'
' traceback object when it is no longer useful, and the '
'third can\n'
' be resolved by storing "None" in "sys.last_traceback". '
'Circular\n'
' references which are garbage are detected and cleaned '
'up when the\n'
" cyclic garbage collector is enabled (it's on by "
'default). Refer\n'
' to the documentation for the "gc" module for more '
'information\n'
' about this topic.\n'
' cycle to prevent the reference count of an object from '
'going to\n'
' zero. In this case, the cycle will be later detected '
'and deleted\n'
' by the *cyclic garbage collector*. A common cause of '
'reference\n'
' cycles is when an exception has been caught in a local '
'variable.\n'
" The frame's locals then reference the exception, which "
'references\n'
' its own traceback, which references the locals of all '
'frames caught\n'
' in the traceback.\n'
'\n'
' See also: Documentation for the "gc" module.\n'
'\n'
' Warning: Due to the precarious circumstances under '
'which\n'
......@@ -2969,29 +3017,35 @@ topics = {'assert': 'The "assert" statement\n'
'during\n'
' their execution are ignored, and a warning is printed '
'to\n'
' "sys.stderr" instead. Also, when "__del__()" is '
'invoked in\n'
' response to a module being deleted (e.g., when '
'execution of the\n'
' program is done), other globals referenced by the '
' "sys.stderr" instead. In particular:\n'
'\n'
' * "__del__()" can be invoked when arbitrary code is '
'being\n'
' executed, including from any arbitrary thread. If '
'"__del__()"\n'
' method may already have been deleted or in the process '
'of being\n'
' torn down (e.g. the import machinery shutting down). '
'For this\n'
' reason, "__del__()" methods should do the absolute '
'minimum needed\n'
' to maintain external invariants. Starting with '
'version 1.5,\n'
' Python guarantees that globals whose name begins with '
'a single\n'
' underscore are deleted from their module before other '
'globals are\n'
' deleted; if no other references to such globals exist, '
'this may\n'
' help in assuring that imported modules are still '
'available at the\n'
' time when the "__del__()" method is called.\n'
' needs to take a lock or invoke any other blocking '
'resource, it\n'
' may deadlock as the resource may already be taken by '
'the code\n'
' that gets interrupted to execute "__del__()".\n'
'\n'
' * "__del__()" can be executed during interpreter '
'shutdown. As\n'
' a consequence, the global variables it needs to '
'access\n'
' (including other modules) may already have been '
'deleted or set\n'
' to "None". Python guarantees that globals whose name '
'begins\n'
' with a single underscore are deleted from their '
'module before\n'
' other globals are deleted; if no other references to '
'such\n'
' globals exist, this may help in assuring that '
'imported modules\n'
' are still available at the time when the "__del__()" '
'method is\n'
' called.\n'
'\n'
'object.__repr__(self)\n'
'\n'
......@@ -3346,6 +3400,13 @@ topics = {'assert': 'The "assert" statement\n'
'executes\n'
'commands as if given in a ".pdbrc" file, see Debugger Commands.\n'
'\n'
'New in version 3.7: "pdb.py" now accepts a "-m" option that '
'execute\n'
'modules similar to the way "python3 -m" does. As with a script, '
'the\n'
'debugger will pause execution just before the first line of the\n'
'module.\n'
'\n'
'The typical usage to break into the debugger from a running '
'program is\n'
'to insert\n'
......@@ -7563,91 +7624,87 @@ topics = {'assert': 'The "assert" statement\n'
'\n'
' Called when the instance is about to be destroyed. This '
'is also\n'
' called a destructor. If a base class has a "__del__()" '
'method, the\n'
' derived class\'s "__del__()" method, if any, must '
'explicitly call it\n'
' to ensure proper deletion of the base class part of the '
'instance.\n'
' Note that it is possible (though not recommended!) for '
'the\n'
' "__del__()" method to postpone destruction of the '
'instance by\n'
' creating a new reference to it. It may then be called at '
'a later\n'
' time when this new reference is deleted. It is not '
'guaranteed that\n'
' "__del__()" methods are called for objects that still '
'exist when\n'
' the interpreter exits.\n'
' called a finalizer or (improperly) a destructor. If a '
'base class\n'
' has a "__del__()" method, the derived class\'s '
'"__del__()" method,\n'
' if any, must explicitly call it to ensure proper deletion '
'of the\n'
' base class part of the instance.\n'
'\n'
' It is possible (though not recommended!) for the '
'"__del__()" method\n'
' to postpone destruction of the instance by creating a new '
'reference\n'
' to it. This is called object *resurrection*. It is\n'
' implementation-dependent whether "__del__()" is called a '
'second\n'
' time when a resurrected object is about to be destroyed; '
'the\n'
' current *CPython* implementation only calls it once.\n'
'\n'
' It is not guaranteed that "__del__()" methods are called '
'for\n'
' objects that still exist when the interpreter exits.\n'
'\n'
' Note: "del x" doesn\'t directly call "x.__del__()" --- '
'the former\n'
' decrements the reference count for "x" by one, and the '
'latter is\n'
' only called when "x"\'s reference count reaches zero. '
'Some common\n'
' situations that may prevent the reference count of an '
'object from\n'
' going to zero include: circular references between '
'objects (e.g.,\n'
' a doubly-linked list or a tree data structure with '
'parent and\n'
' child pointers); a reference to the object on the stack '
'frame of\n'
' a function that caught an exception (the traceback '
'stored in\n'
' "sys.exc_info()[2]" keeps the stack frame alive); or a '
' only called when "x"\'s reference count reaches zero.\n'
'\n'
' **CPython implementation detail:** It is possible for a '
'reference\n'
' to the object on the stack frame that raised an '
'unhandled\n'
' exception in interactive mode (the traceback stored in\n'
' "sys.last_traceback" keeps the stack frame alive). The '
'first\n'
' situation can only be remedied by explicitly breaking '
'the cycles;\n'
' the second can be resolved by freeing the reference to '
'the\n'
' traceback object when it is no longer useful, and the '
'third can\n'
' be resolved by storing "None" in "sys.last_traceback". '
'Circular\n'
' references which are garbage are detected and cleaned '
'up when the\n'
" cyclic garbage collector is enabled (it's on by "
'default). Refer\n'
' to the documentation for the "gc" module for more '
'information\n'
' about this topic.\n'
' cycle to prevent the reference count of an object from '
'going to\n'
' zero. In this case, the cycle will be later detected and '
'deleted\n'
' by the *cyclic garbage collector*. A common cause of '
'reference\n'
' cycles is when an exception has been caught in a local '
'variable.\n'
" The frame's locals then reference the exception, which "
'references\n'
' its own traceback, which references the locals of all '
'frames caught\n'
' in the traceback.\n'
'\n'
' See also: Documentation for the "gc" module.\n'
'\n'
' Warning: Due to the precarious circumstances under which\n'
' "__del__()" methods are invoked, exceptions that occur '
'during\n'
' their execution are ignored, and a warning is printed '
'to\n'
' "sys.stderr" instead. Also, when "__del__()" is invoked '
'in\n'
' response to a module being deleted (e.g., when '
'execution of the\n'
' program is done), other globals referenced by the '
' "sys.stderr" instead. In particular:\n'
'\n'
' * "__del__()" can be invoked when arbitrary code is '
'being\n'
' executed, including from any arbitrary thread. If '
'"__del__()"\n'
' method may already have been deleted or in the process '
'of being\n'
' torn down (e.g. the import machinery shutting down). '
'For this\n'
' reason, "__del__()" methods should do the absolute '
'minimum needed\n'
' to maintain external invariants. Starting with version '
'1.5,\n'
' Python guarantees that globals whose name begins with a '
'single\n'
' underscore are deleted from their module before other '
'globals are\n'
' deleted; if no other references to such globals exist, '
'this may\n'
' help in assuring that imported modules are still '
'available at the\n'
' time when the "__del__()" method is called.\n'
' needs to take a lock or invoke any other blocking '
'resource, it\n'
' may deadlock as the resource may already be taken by '
'the code\n'
' that gets interrupted to execute "__del__()".\n'
'\n'
' * "__del__()" can be executed during interpreter '
'shutdown. As\n'
' a consequence, the global variables it needs to '
'access\n'
' (including other modules) may already have been '
'deleted or set\n'
' to "None". Python guarantees that globals whose name '
'begins\n'
' with a single underscore are deleted from their '
'module before\n'
' other globals are deleted; if no other references to '
'such\n'
' globals exist, this may help in assuring that '
'imported modules\n'
' are still available at the time when the "__del__()" '
'method is\n'
' called.\n'
'\n'
'object.__repr__(self)\n'
'\n'
......@@ -8031,6 +8088,65 @@ topics = {'assert': 'The "assert" statement\n'
' sorts it.\n'
'\n'
'\n'
'Customizing module attribute access\n'
'-----------------------------------\n'
'\n'
'Special names "__getattr__" and "__dir__" can be also used '
'to\n'
'customize access to module attributes. The "__getattr__" '
'function at\n'
'the module level should accept one argument which is the '
'name of an\n'
'attribute and return the computed value or raise an '
'"AttributeError".\n'
'If an attribute is not found on a module object through the '
'normal\n'
'lookup, i.e. "object.__getattribute__()", then "__getattr__" '
'is\n'
'searched in the module "__dict__" before raising an '
'"AttributeError".\n'
'If found, it is called with the attribute name and the '
'result is\n'
'returned.\n'
'\n'
'The "__dir__" function should accept no arguments, and '
'return a list\n'
'of strings that represents the names accessible on module. '
'If present,\n'
'this function overrides the standard "dir()" search on a '
'module.\n'
'\n'
'For a more fine grained customization of the module behavior '
'(setting\n'
'attributes, properties, etc.), one can set the "__class__" '
'attribute\n'
'of a module object to a subclass of "types.ModuleType". For '
'example:\n'
'\n'
' import sys\n'
' from types import ModuleType\n'
'\n'
' class VerboseModule(ModuleType):\n'
' def __repr__(self):\n'
" return f'Verbose {self.__name__}'\n"
'\n'
' def __setattr__(self, attr, value):\n'
" print(f'Setting {attr}...')\n"
' setattr(self, attr, value)\n'
'\n'
' sys.modules[__name__].__class__ = VerboseModule\n'
'\n'
'Note: Defining module "__getattr__" and setting module '
'"__class__"\n'
' only affect lookups made using the attribute access syntax '
'--\n'
' directly accessing the module globals (whether by code '
'within the\n'
" module, or via a reference to the module's globals "
'dictionary) is\n'
' unaffected.\n'
'\n'
'\n'
'Implementing Descriptors\n'
'------------------------\n'
'\n'
......@@ -12211,18 +12327,18 @@ topics = {'assert': 'The "assert" statement\n'
' sequence concatenation or repetition.\n'
'\n'
'8. "index" raises "ValueError" when *x* is not found in *s*. '
'When\n'
' supported, the additional arguments to the index method '
'allow\n'
' efficient searching of subsections of the sequence. Passing '
'the\n'
' extra arguments is roughly equivalent to using '
'"s[i:j].index(x)",\n'
' only without copying any data and with the returned index '
'being\n'
' relative to the start of the sequence rather than the start '
'of the\n'
' slice.\n'
'Not\n'
' all implementations support passing the additional arguments '
'*i*\n'
' and *j*. These arguments allow efficient searching of '
'subsections\n'
' of the sequence. Passing the extra arguments is roughly '
'equivalent\n'
' to using "s[i:j].index(x)", only without copying any data and '
'with\n'
' the returned index being relative to the start of the '
'sequence\n'
' rather than the start of the slice.\n'
'\n'
'\n'
'Immutable Sequence Types\n'
......
Misc/NEWS.d/3.7.0a4.rst 0 → 100644
View file @ 3b43bfaa
.. bpo: 31975
.. date: 2018-01-05-20-54-27
.. nonce: AmftlU
.. release date: 2018-01-08
.. section: Core and Builtins
The default warning filter list now starts with a
"default::DeprecationWarning:__main__" entry, so deprecation warnings are
once again shown by default in single-file scripts and at the interactive
prompt.
..
.. bpo: 32226
.. date: 2018-01-04-15-06-15
.. nonce: 7cAvRG
.. section: Core and Builtins
``__class_getitem__`` is now an automatic class method.
..
.. bpo: 32399
.. date: 2017-12-22-13-38-17
.. nonce: wlH12z
.. section: Core and Builtins
Add AIX uuid library support for RFC4122 using uuid_create() in libc.a
..
.. bpo: 32390
.. date: 2017-12-22-13-28-07
.. nonce: QPj083
.. section: Core and Builtins
Fix the compilation failure on AIX after the f_fsid field has been added to
the object returned by os.statvfs() (issue #32143). Original patch by
Michael Felt.
..
.. bpo: 32379
.. date: 2017-12-19-21-14-41
.. nonce: B7mOmI
.. section: Core and Builtins
Make MRO computation faster when a class inherits from a single base.
..
.. bpo: 32259
.. date: 2017-12-16-14-30-21
.. nonce: GoOJiX
.. section: Core and Builtins
The error message of a TypeError raised when unpack non-iterable is now more
specific.
..
.. bpo: 27169
.. date: 2017-12-15-11-50-06
.. nonce: VO84fQ
.. section: Core and Builtins
The ``__debug__`` constant is now optimized out at compile time. This fixes
also bpo-22091.
..
.. bpo: 32329
.. date: 2017-12-15-00-13-04
.. nonce: q47IN2
.. section: Core and Builtins
The :option:`-R` option now turns on hash randomization when the
:envvar:`PYTHONHASHSEED` environment variable is set to ``0``. Previously,
the option was ignored. Moreover, ``sys.flags.hash_randomization`` is now
properly set to 0 when hash randomization is turned off by
``PYTHONHASHSEED=0``.
..
.. bpo: 30416
.. date: 2017-12-14-11-48-19
.. nonce: hlHo_9
.. section: Core and Builtins
The optimizer is now protected from spending much time doing complex
calculations and consuming much memory for creating large constants in
constant folding. Increased limits for constants that can be produced in
constant folding.
..
.. bpo: 32282
.. date: 2017-12-12-14-02-28
.. nonce: xFVMTn
.. section: Core and Builtins
Fix an unnecessary ifdef in the include of VersionHelpers.h in socketmodule
on Windows.
..
.. bpo: 30579
.. date: 2017-12-11-01-52-42
.. nonce: X6cEzf
.. section: Core and Builtins
Implement TracebackType.__new__ to allow Python-level creation of traceback
objects, and make TracebackType.tb_next mutable.
..
.. bpo: 32260
.. date: 2017-12-09-11-03-51
.. nonce: 1DAO-p
.. section: Core and Builtins
Don't byte swap the input keys to the SipHash algorithm on big-endian
platforms. This should ensure siphash gives consistent results across
platforms.
..
.. bpo: 31506
.. date: 2017-12-07-23-44-29
.. nonce: j1U2fU
.. section: Core and Builtins
Improve the error message logic for object.__new__ and object.__init__.
Patch by Sanyam Khurana.
..
.. bpo: 20361
.. date: 2017-12-07-17-22-30
.. nonce: zQUmbi
.. section: Core and Builtins
``-b`` and ``-bb`` now inject ``'default::BytesWarning'`` and
``error::BytesWarning`` entries into ``sys.warnoptions``, ensuring that they
take precedence over any other warning filters configured via the ``-W``
option or the ``PYTHONWARNINGS`` environment variable.
..
.. bpo: 32230
.. date: 2017-12-06-20-18-34
.. nonce: PgGQaB
.. section: Core and Builtins
`-X dev` now injects a ``'default'`` entry into sys.warnoptions, ensuring
that it behaves identically to actually passing ``-Wdefault`` at the command
line.
..
.. bpo: 29240
.. date: 2017-12-05-23-10-58
.. nonce: qpJP5l
.. section: Core and Builtins
Add a new UTF-8 mode: implementation of the :pep:`540`.
..
.. bpo: 32226
.. date: 2017-12-05-21-42-58
.. nonce: G8fqb6
.. section: Core and Builtins
PEP 560: Add support for __mro_entries__ and __class_getitem__. Implemented
by Ivan Levkivskyi.
..
.. bpo: 32225
.. date: 2017-12-05-21-33-47
.. nonce: ucKjvw
.. section: Core and Builtins
PEP 562: Add support for module ``__getattr__`` and ``__dir__``. Implemented
by Ivan Levkivskyi.
..
.. bpo: 31901
.. date: 2017-11-28-15-04-14
.. nonce: mDeCLK
.. section: Core and Builtins
The `atexit` module now has its callback stored per interpreter.
..
.. bpo: 31650
.. date: 2017-11-26-14-38-44
.. nonce: JWf_Im
.. section: Core and Builtins
Implement PEP 552 (Deterministic pycs). Python now supports invalidating
bytecode cache files bashed on a source content hash rather than source
last-modified time.
..
.. bpo: 29469
.. date: 2017-07-26-00-20-15
.. nonce: potmyI
.. section: Core and Builtins
Move constant folding from bytecode layer to AST layer. Original patch by
Eugene Toder.
..
.. bpo: 32506
.. date: 2018-01-07-11-32-42
.. nonce: MaT-zU
.. section: Library
Now that dict is defined as keeping insertion order, drop OrderedDict and
just use plain dict.
..
.. bpo: 32279
.. date: 2018-01-06-16-50-11
.. nonce: 1xOpU8
.. section: Library
Add params to dataclasses.make_dataclasses(): init, repr, eq, order, hash,
and frozen. Pass them through to dataclass().
..
.. bpo: 32278
.. date: 2018-01-06-15-15-34
.. nonce: bGnGc0
.. section: Library
Make type information optional on dataclasses.make_dataclass(). If omitted,
the string 'typing.Any' is used.
..
.. bpo: 32499
.. date: 2018-01-06-10-54-16
.. nonce: koyY-4
.. section: Library
Add dataclasses.is_dataclass(obj), which returns True if obj is a dataclass
or an instance of one.
..
.. bpo: 32468
.. date: 2017-12-31-20-32-58
.. nonce: YBs__0
.. section: Library
Improve frame repr() to mention filename, code name and current line number.
..
.. bpo: 23749
.. date: 2017-12-29-00-44-42
.. nonce: QL1Cxd
.. section: Library
asyncio: Implement loop.start_tls()
..
.. bpo: 32441
.. date: 2017-12-28-21-30-40
.. nonce: LqlboJ
.. section: Library
Return the new file descriptor (i.e., the second argument) from ``os.dup2``.
Previously, ``None`` was always returned.
..
.. bpo: 32422
.. date: 2017-12-25-20-22-47
.. nonce: 5H3Wq2
.. section: Library
``functools.lru_cache`` uses less memory (3 words for each cached key) and
takes about 1/3 time for cyclic GC.
..
.. bpo: 31721
.. date: 2017-12-25-11-09-46
.. nonce: 5gM972
.. section: Library
Prevent Python crash from happening when Future._log_traceback is set to
True manually. Now it can only be set to False, or a ValueError is raised.
..
.. bpo: 32415
.. date: 2017-12-23-12-45-00
.. nonce: YufXTU
.. section: Library
asyncio: Add Task.get_loop() and Future.get_loop()
..
.. bpo: 26133
.. date: 2017-12-21-11-08-42
.. nonce: mt81QV
.. section: Library
Don't unsubscribe signals in asyncio UNIX event loop on interpreter
shutdown.
..
.. bpo: 32363
.. date: 2017-12-19-00-37-28
.. nonce: YTeGU0
.. section: Library
Make asyncio.Task.set_exception() and set_result() raise
NotImplementedError. Task._step() and Future.__await__() raise proper
exceptions when they are in an invalid state, instead of raising an
AssertionError.
..
.. bpo: 32357
.. date: 2017-12-18-00-36-41
.. nonce: t1F3sn
.. section: Library
Optimize asyncio.iscoroutine() and loop.create_task() for non-native
coroutines (e.g. async/await compiled with Cython).
'loop.create_task(python_coroutine)' used to be 20% faster than
'loop.create_task(cython_coroutine)'. Now, the latter is as fast.
..
.. bpo: 32356
.. date: 2017-12-17-22-50-51
.. nonce: roZJpA
.. section: Library
asyncio.transport.resume_reading() and pause_reading() are now idempotent.
New transport.is_reading() method is added.
..
.. bpo: 32355
.. date: 2017-12-17-21-42-24
.. nonce: tbaTWA
.. section: Library
Optimize asyncio.gather(); now up to 15% faster.
..
.. bpo: 32351
.. date: 2017-12-17-14-23-23
.. nonce: 95fh2K
.. section: Library
Use fastpath in asyncio.sleep if delay<0 (2x boost)
..
.. bpo: 32348
.. date: 2017-12-16-18-50-57
.. nonce: 5j__he
.. section: Library
Optimize asyncio.Future schedule/add/remove callback. The optimization
shows 3-6% performance improvements of async/await code.
..
.. bpo: 32331
.. date: 2017-12-15-23-48-43
.. nonce: fIg1Uc
.. section: Library
Fix socket.settimeout() and socket.setblocking() to keep socket.type as is.
Fix socket.socket() constructor to reset any bit flags applied to socket's
type. This change only affects OSes that have SOCK_NONBLOCK and/or
SOCK_CLOEXEC.
..
.. bpo: 32248
.. date: 2017-12-15-15-34-12
.. nonce: zmO8G2
.. section: Library
Add :class:`importlib.abc.ResourceReader` as an ABC for loaders to provide a
unified API for reading resources contained within packages. Also add
:mod:`importlib.resources` as the port of ``importlib_resources``.
..
.. bpo: 32311
.. date: 2017-12-14-17-28-54
.. nonce: DL5Ytn
.. section: Library
Implement asyncio.create_task(coro) shortcut
..
.. bpo: 32327
.. date: 2017-12-14-16-00-25
.. nonce: bbkSxA
.. section: Library
Convert asyncio functions that were documented as coroutines to coroutines.
Affected functions: loop.sock_sendall, loop.sock_recv, loop.sock_accept,
loop.run_in_executor, loop.getaddrinfo, loop.getnameinfo.
..
.. bpo: 32323
.. date: 2017-12-14-10-10-10
.. nonce: ideco
.. section: Library
:func:`urllib.parse.urlsplit()` does not convert zone-id (scope) to lower
case for scoped IPv6 addresses in hostnames now.
..
.. bpo: 32302
.. date: 2017-12-13-22-38-08
.. nonce: othtTr
.. section: Library
Fix bdist_wininst of distutils for CRT v142: it binary compatible with CRT
v140.
..
.. bpo: 29711
.. date: 2017-12-13-22-10-36
.. nonce: hJjghA
.. section: Library
Fix ``stop_serving`` in asyncio proactor loop kill all listening servers
..
.. bpo: 32308
.. date: 2017-12-13-20-31-30
.. nonce: CUbsb2
.. section: Library
:func:`re.sub()` now replaces empty matches adjacent to a previous non-empty
match.
..
.. bpo: 29970
.. date: 2017-12-13-19-02-38
.. nonce: uxVOpk
.. section: Library
Abort asyncio SSLProtocol connection if handshake not complete within 10s
..
.. bpo: 32314
.. date: 2017-12-13-16-47-38
.. nonce: W4_U2j
.. section: Library
Implement asyncio.run().
..
.. bpo: 17852
.. date: 2017-12-13-00-00-37
.. nonce: Q8BP8N
.. section: Library
Revert incorrect fix based on misunderstanding of _Py_PyAtExit() semantics.
..
.. bpo: 32296
.. date: 2017-12-12-18-01-01
.. nonce: bwscHz
.. section: Library
Implement asyncio._get_running_loop() and get_event_loop() in C. This makes
them 4x faster.
..
.. bpo: 32250
.. date: 2017-12-12-16-58-20
.. nonce: UljTa0
.. section: Library
Implement ``asyncio.current_task()`` and ``asyncio.all_tasks()``. Add
helpers intended to be used by alternative task implementations:
``asyncio._register_task``, ``asyncio._enter_task``, ``asyncio._leave_task``
and ``asyncio._unregister_task``. Deprecate ``asyncio.Task.current_task()``
and ``asyncio.Task.all_tasks()``.
..
.. bpo: 32255
.. date: 2017-12-12-07-29-06
.. nonce: 2bfNmM
.. section: Library
A single empty field is now always quoted when written into a CSV file. This
allows to distinguish an empty row from a row consisting of a single empty
field. Patch by Licht Takeuchi.
..
.. bpo: 32277
.. date: 2017-12-11-09-53-14
.. nonce: jkKiVC
.. section: Library
Raise ``NotImplementedError`` instead of ``SystemError`` on platforms where
``chmod(..., follow_symlinks=False)`` is not supported. Patch by Anthony
Sottile.
..
.. bpo: 30050
.. date: 2017-12-10-23-44-56
.. nonce: 4SZ3lY
.. section: Library
New argument warn_on_full_buffer to signal.set_wakeup_fd lets you control
whether Python prints a warning on stderr when the wakeup fd buffer
overflows.
..
.. bpo: 29137
.. date: 2017-12-10-21-19-14
.. nonce: CFcON1
.. section: Library
The ``fpectl`` library has been removed. It was never enabled by default,
never worked correctly on x86-64, and it changed the Python ABI in ways that
caused unexpected breakage of C extensions.
..
.. bpo: 32273
.. date: 2017-12-10-19-14-55
.. nonce: 5KKlCv
.. section: Library
Move asyncio.test_utils to test.test_asyncio.
..
.. bpo: 32272
.. date: 2017-12-10-18-59-13
.. nonce: Mu84Am
.. section: Library
Remove asyncio.async() function.
..
.. bpo: 32269
.. date: 2017-12-10-12-30-13
.. nonce: Q85pKj
.. section: Library
Add asyncio.get_running_loop() function.
..
.. bpo: 32265
.. date: 2017-12-10-00-57-51
.. nonce: kELtTE
.. section: Library
All class and static methods of builtin types now are correctly classified
by inspect.classify_class_attrs() and grouped in pydoc ouput. Added
types.ClassMethodDescriptorType for unbound class methods of builtin types.
..
.. bpo: 32253
.. date: 2017-12-09-11-30-35
.. nonce: TQHSYF
.. section: Library
Deprecate ``yield from lock``, ``await lock``, ``with (yield from lock)``
and ``with await lock`` for asyncio synchronization primitives.
..
.. bpo: 22589
.. date: 2017-12-08-15-09-41
.. nonce: 8ouqI6
.. section: Library
Changed MIME type of .bmp from 'image/x-ms-bmp' to 'image/bmp'
..
.. bpo: 32193
.. date: 2017-12-08-11-02-26
.. nonce: NJe_TQ
.. section: Library
Convert asyncio to use *async/await* syntax. Old styled ``yield from`` is
still supported too.
..
.. bpo: 32206
.. date: 2017-12-07-13-14-40
.. nonce: obm4OM
.. section: Library
Add support to run modules with pdb
..
.. bpo: 32227
.. date: 2017-12-05-13-25-15
.. nonce: 3vnWFS
.. section: Library
``functools.singledispatch`` now supports registering implementations using
type annotations.
..
.. bpo: 15873
.. date: 2017-12-04-17-41-40
.. nonce: -T4TRK
.. section: Library
Added new alternate constructors :meth:`datetime.datetime.fromisoformat`,
:meth:`datetime.time.fromisoformat` and :meth:`datetime.date.fromisoformat`
as the inverse operation of each classes's respective ``isoformat`` methods.
..
.. bpo: 32199
.. date: 2017-12-04-12-23-26
.. nonce: nGof4v
.. section: Library
The getnode() ip getter now uses 'ip link' instead of 'ip link list'.
..
.. bpo: 32143
.. date: 2017-11-26-17-28-26
.. nonce: o7YdXL
.. section: Library
os.statvfs() includes the f_fsid field from statvfs(2)
..
.. bpo: 26439
.. date: 2017-11-24-08-35-43
.. nonce: IC45_f
.. section: Library
Fix ctypes.util.find_library() for AIX by implementing
ctypes._aix.find_library() Patch by: Michael Felt
..
.. bpo: 31993
.. date: 2017-11-10-00-05-08
.. nonce: -OMNg8
.. section: Library
The picklers no longer allocate temporary memory when dumping large
``bytes`` and ``str`` objects into a file object. Instead the data is
directly streamed into the underlying file object.
..
.. bpo: 27456
.. date: 2017-11-02-11-57-41
.. nonce: snzyTC
.. section: Library
Ensure TCP_NODELAY is set on Linux. Tests by Victor Stinner.
..
.. bpo: 31778
.. date: 2017-10-18-17-29-30
.. nonce: B6vAkP
.. section: Library
ast.literal_eval() is now more strict. Addition and subtraction of arbitrary
numbers no longer allowed.
..
.. bpo: 31802
.. date: 2017-10-17-14-52-14
.. nonce: sYj2Zv
.. section: Library
Importing native path module (``posixpath``, ``ntpath``) now works even if
the ``os`` module still is not imported.
..
.. bpo: 30241
.. date: 2017-10-10-18-56-46
.. nonce: F_go20
.. section: Library
Add contextlib.AbstractAsyncContextManager. Patch by Jelle Zijlstra.
..
.. bpo: 31699
.. date: 2017-10-05-11-06-32
.. nonce: MF47Y6
.. section: Library
Fix deadlocks in :class:`concurrent.futures.ProcessPoolExecutor` when task
arguments or results cause pickling or unpickling errors. This should make
sure that calls to the :class:`ProcessPoolExecutor` API always eventually
return.
..
.. bpo: 15216
.. date: 2017-09-16-02-56-33
.. nonce: lqXCTT
.. section: Library
``TextIOWrapper.reconfigure()`` supports changing *encoding*, *errors*, and
*newline*.
..
.. bpo: 32418
.. date: 2017-12-24-17-29-37
.. nonce: eZe-ID
.. section: Documentation
Add get_loop() method to Server and AbstractServer classes.
..
.. bpo: 32252
.. date: 2017-12-11-13-31-33
.. nonce: YnFw7J
.. section: Tests
Fix faulthandler_suppress_crash_report() used to prevent core dump files
when testing crashes. getrlimit() returns zero on success.
..
.. bpo: 32002
.. date: 2017-11-11-16-35-18
.. nonce: itDxIo
.. section: Tests
Adjust C locale coercion testing for the empty locale and POSIX locale cases
to more readily adjust to platform dependent behaviour.
..
.. bpo: 19764
.. date: 2017-08-18-18-00-24
.. nonce: ODpc9y
.. section: Windows
Implement support for `subprocess.Popen(close_fds=True)` on Windows. Patch
by Segev Finer.
..
.. bpo: 24960
.. date: 2017-12-22-09-25-51
.. nonce: TGdAgO
.. section: Tools/Demos
2to3 and lib2to3 can now read pickled grammar files using pkgutil.get_data()
rather than probing the filesystem. This lets 2to3 and lib2to3 work when run
from a zipfile.
..
.. bpo: 32030
.. date: 2017-12-20-23-22-32
.. nonce: d1dcwh
.. section: C API
Py_Initialize() doesn't reset the memory allocators to default if the
``PYTHONMALLOC`` environment variable is not set.
..
.. bpo: 29084
.. date: 2017-12-16-09-59-35
.. nonce: ZGJ-LJ
.. section: C API
Undocumented C API for OrderedDict has been excluded from the limited C API.
It was added by mistake and actually never worked in the limited C API.
..
.. bpo: 32264
.. date: 2017-12-12-23-09-46
.. nonce: ahRlOI
.. section: C API
Moved the pygetopt.h header into internal/, since it has no public APIs.
..
.. bpo: 32241
.. date: 2017-12-07-15-58-15
.. nonce: LbyQt6
.. section: C API
:c:func:`Py_SetProgramName` and :c:func:`Py_SetPythonHome` now take the
``const wchar *`` arguments instead of ``wchar *``.
Misc/NEWS.d/next/C API/2017-12-07-15-58-15.bpo-32241.LbyQt6.rst deleted 100644 → 0
View file @ ca0c5f26
:c:func:`Py_SetProgramName` and :c:func:`Py_SetPythonHome` now take the
``const wchar *`` arguments instead of ``wchar *``.
Misc/NEWS.d/next/C API/2017-12-12-23-09-46.bpo-32264.ahRlOI.rst deleted 100644 → 0
View file @ ca0c5f26
Moved the pygetopt.h header into internal/, since it has no public APIs.
Misc/NEWS.d/next/C API/2017-12-16-09-59-35.bpo-29084.ZGJ-LJ.rst deleted 100644 → 0
View file @ ca0c5f26
Undocumented C API for OrderedDict has been excluded from the limited C API.
It was added by mistake and actually never worked in the limited C API.
Misc/NEWS.d/next/C API/2017-12-20-23-22-32.bpo-32030.d1dcwh.rst deleted 100644 → 0
View file @ ca0c5f26
Py_Initialize() doesn't reset the memory allocators to default if the
``PYTHONMALLOC`` environment variable is not set.
Misc/NEWS.d/next/Core and Builtins/2017-07-26-00-20-15.bpo-29469.potmyI.rst deleted 100644 → 0
View file @ ca0c5f26
Move constant folding from bytecode layer to AST layer.
Original patch by Eugene Toder.
Misc/NEWS.d/next/Core and Builtins/2017-11-26-14-38-44.bpo-31650.JWf_Im.rst deleted 100644 → 0
View file @ ca0c5f26
Implement PEP 552 (Deterministic pycs). Python now supports invalidating
bytecode cache files bashed on a source content hash rather than source
last-modified time.
Misc/NEWS.d/next/Core and Builtins/2017-11-28-15-04-14.bpo-31901.mDeCLK.rst deleted 100644 → 0
View file @ ca0c5f26
The `atexit` module now has its callback stored per interpreter.
Misc/NEWS.d/next/Core and Builtins/2017-12-05-21-33-47.bpo-32225.ucKjvw.rst deleted 100644 → 0
View file @ ca0c5f26
PEP 562: Add support for module ``__getattr__`` and ``__dir__``. Implemented by Ivan
Levkivskyi.
Misc/NEWS.d/next/Core and Builtins/2017-12-05-21-42-58.bpo-32226.G8fqb6.rst deleted 100644 → 0
View file @ ca0c5f26
PEP 560: Add support for __mro_entries__ and __class_getitem__. Implemented
by Ivan Levkivskyi.
Misc/NEWS.d/next/Core and Builtins/2017-12-06-20-18-34.bpo-32230.PgGQaB.rst deleted 100644 → 0
View file @ ca0c5f26
`-X dev` now injects a ``'default'`` entry into sys.warnoptions, ensuring
that it behaves identically to actually passing ``-Wdefault`` at the command
line.
Misc/NEWS.d/next/Core and Builtins/2017-12-07-17-22-30.bpo-20361.zQUmbi.rst deleted 100644 → 0
View file @ ca0c5f26
``-b`` and ``-bb`` now inject ``'default::BytesWarning'`` and
``error::BytesWarning`` entries into ``sys.warnoptions``, ensuring that they
take precedence over any other warning filters configured via the ``-W``
option or the ``PYTHONWARNINGS`` environment variable.
Misc/NEWS.d/next/Core and Builtins/2017-12-07-23-44-29.bpo-31506.j1U2fU.rst deleted 100644 → 0
View file @ ca0c5f26
Improve the error message logic for object.__new__ and object.__init__.
Patch by Sanyam Khurana.
Misc/NEWS.d/next/Core and Builtins/2017-12-09-11-03-51.bpo-32260.1DAO-p.rst deleted 100644 → 0
View file @ ca0c5f26
Don't byte swap the input keys to the SipHash algorithm on big-endian
platforms. This should ensure siphash gives consistent results across
platforms.
Misc/NEWS.d/next/Core and Builtins/2017-12-11-01-52-42.bpo-30579.X6cEzf.rst deleted 100644 → 0
View file @ ca0c5f26
Implement TracebackType.__new__ to allow Python-level creation of
traceback objects, and make TracebackType.tb_next mutable.
Misc/NEWS.d/next/Core and Builtins/2017-12-12-14-02-28.bpo-32282.xFVMTn.rst deleted 100644 → 0
View file @ ca0c5f26
Fix an unnecessary ifdef in the include of VersionHelpers.h in socketmodule
on Windows.
Misc/NEWS.d/next/Core and Builtins/2017-12-14-11-48-19.bpo-30416.hlHo_9.rst deleted 100644 → 0
View file @ ca0c5f26
The optimizer is now protected from spending much time doing complex
calculations and consuming much memory for creating large constants in
constant folding. Increased limits for constants that can be produced in
constant folding.
Misc/NEWS.d/next/Core and Builtins/2017-12-15-00-13-04.bpo-32329.q47IN2.rst deleted 100644 → 0
View file @ ca0c5f26
The :option:`-R` option now turns on hash randomization when the
:envvar:`PYTHONHASHSEED` environment variable is set to ``0``. Previously,
the option was ignored. Moreover, ``sys.flags.hash_randomization`` is now
properly set to 0 when hash randomization is turned off by
``PYTHONHASHSEED=0``.
Misc/NEWS.d/next/Core and Builtins/2017-12-15-11-50-06.bpo-27169.VO84fQ.rst deleted 100644 → 0
View file @ ca0c5f26
The ``__debug__`` constant is now optimized out at compile time. This fixes also
bpo-22091.
Misc/NEWS.d/next/Core and Builtins/2017-12-16-14-30-21.bpo-32259.GoOJiX.rst deleted 100644 → 0
View file @ ca0c5f26
The error message of a TypeError raised when unpack non-iterable is now more
specific.
Misc/NEWS.d/next/Core and Builtins/2017-12-19-21-14-41.bpo-32379.B7mOmI.rst deleted 100644 → 0
View file @ ca0c5f26
Make MRO computation faster when a class inherits from a single base.
Misc/NEWS.d/next/Core and Builtins/2017-12-22-13-28-07.bpo-32390.QPj083.rst deleted 100644 → 0
View file @ ca0c5f26
Fix the compilation failure on AIX after the f_fsid field has been added to the object returned by os.statvfs() (issue #32143). Original patch by Michael Felt.
Misc/NEWS.d/next/Core and Builtins/2017-12-22-13-38-17.bpo-32399.wlH12z.rst deleted 100644 → 0
View file @ ca0c5f26
Add AIX uuid library support for RFC4122 using uuid_create() in libc.a
Misc/NEWS.d/next/Core and Builtins/2018-01-05-20-54-27.bpo-31975.AmftlU.rst deleted 100644 → 0
View file @ ca0c5f26
The default warning filter list now starts with a
"default::DeprecationWarning:__main__" entry, so deprecation warnings are
once again shown by default in single-file scripts and at the interactive
prompt.
Misc/NEWS.d/next/Documentation/2017-12-24-17-29-37.bpo-32418.eZe-ID.rst deleted 100644 → 0
View file @ ca0c5f26
Add get_loop() method to Server and AbstractServer classes.
Misc/NEWS.d/next/Library/2017-09-16-02-56-33.bpo-15216.lqXCTT.rst deleted 100644 → 0
View file @ ca0c5f26
``TextIOWrapper.reconfigure()`` supports changing *encoding*, *errors*, and
*newline*.
Misc/NEWS.d/next/Library/2017-10-05-11-06-32.bpo-31699.MF47Y6.rst deleted 100644 → 0
View file @ ca0c5f26
Fix deadlocks in :class:`concurrent.futures.ProcessPoolExecutor` when
task arguments or results cause pickling or unpickling errors.
This should make sure that calls to the :class:`ProcessPoolExecutor` API
always eventually return.
Misc/NEWS.d/next/Library/2017-10-10-18-56-46.bpo-30241.F_go20.rst deleted 100644 → 0
View file @ ca0c5f26
Add contextlib.AbstractAsyncContextManager. Patch by Jelle Zijlstra.
Misc/NEWS.d/next/Library/2017-10-17-14-52-14.bpo-31802.sYj2Zv.rst deleted 100644 → 0
View file @ ca0c5f26
Importing native path module (``posixpath``, ``ntpath``) now works even if
the ``os`` module still is not imported.
Misc/NEWS.d/next/Library/2017-10-18-17-29-30.bpo-31778.B6vAkP.rst deleted 100644 → 0
View file @ ca0c5f26
ast.literal_eval() is now more strict. Addition and subtraction of
arbitrary numbers no longer allowed.
Misc/NEWS.d/next/Library/2017-11-02-11-57-41.bpo-27456.snzyTC.rst deleted 100644 → 0
View file @ ca0c5f26
Ensure TCP_NODELAY is set on Linux. Tests by Victor Stinner.
Misc/NEWS.d/next/Library/2017-11-10-00-05-08.bpo-31993.-OMNg8.rst deleted 100644 → 0
View file @ ca0c5f26
The picklers do no longer allocate temporary memory when dumping large
``bytes`` and ``str`` objects into a file object. Instead the data is
directly streamed into the underlying file object.
Previously the C implementation would buffer all content and issue a
single call to ``file.write`` at the end of the dump. With protocol 4
this behavior has changed to issue one call to ``file.write`` per frame.
The Python pickler with protocol 4 now dumps each frame content as a
memoryview to an IOBytes instance that is never reused and the
memoryview is no longer released after the call to write. This makes it
possible for the file object to delay access to the memoryview of
previous frames without forcing any additional memory copy as was
already possible with the C pickler.
Misc/NEWS.d/next/Library/2017-11-24-08-35-43.bpo-26439.IC45_f.rst deleted 100644 → 0
View file @ ca0c5f26
Fix ctypes.util.find_library() for AIX
by implementing ctypes._aix.find_library()
Patch by: Michael Felt aka aixtools
ctypes.util.find_library has always returned None on a standard AIX.
With this patch there is support for both AIX and svr4 shared libraries.
None is returned only when there is nothinbg found. Normal behavior is now:
on AIX find_library("FOO") returns either libFOO.a(libFOO.so) or libFOO.so
while legacy names e.g., find_library("c") returns libc.a(shr.o)
or libc.a(shr_64.o) - depending on 32 or 64-bit operations.
Include RTLD_MEMBER to mode to support AIX legacy library(member) names
(Modules/_ctype/posixmodule.c), ctypes/__init__.py and configure.ac)
Misc/NEWS.d/next/Library/2017-11-26-17-28-26.bpo-32143.o7YdXL.rst deleted 100644 → 0
View file @ ca0c5f26
os.statvfs() includes the f_fsid field from statvfs(2)
Misc/NEWS.d/next/Library/2017-12-04-12-23-26.bpo-32199.nGof4v.rst deleted 100644 → 0
View file @ ca0c5f26
The getnode() ip getter now uses 'ip link' instead of 'ip link list'.
Misc/NEWS.d/next/Library/2017-12-04-17-41-40.bpo-15873.-T4TRK.rst deleted 100644 → 0
View file @ ca0c5f26
Added new alternate constructors :meth:`datetime.datetime.fromisoformat`,
:meth:`datetime.time.fromisoformat` and :meth:`datetime.date.fromisoformat`
as the inverse operation of each classes's respective ``isoformat`` methods.
Misc/NEWS.d/next/Library/2017-12-05-13-25-15.bpo-32227.3vnWFS.rst deleted 100644 → 0
View file @ ca0c5f26
``functools.singledispatch`` now supports registering implementations using
type annotations.
Misc/NEWS.d/next/Library/2017-12-08-11-02-26.bpo-32193.NJe_TQ.rst deleted 100644 → 0
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Convert asyncio to use *async/await* syntax. Old styled ``yield from`` is
still supported too.
Misc/NEWS.d/next/Library/2017-12-08-15-09-41.bpo-22589.8ouqI6.rst deleted 100644 → 0
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Changed MIME type of .bmp from 'image/x-ms-bmp' to 'image/bmp'
Misc/NEWS.d/next/Library/2017-12-09-11-30-35.bpo-32253.TQHSYF.rst deleted 100644 → 0
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Deprecate ``yield from lock``, ``await lock``, ``with (yield from lock)``
and ``with await lock`` for asyncio synchronization primitives.
Misc/NEWS.d/next/Library/2017-12-10-00-57-51.bpo-32265.kELtTE.rst deleted 100644 → 0
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All class and static methods of builtin types now are correctly classified
by inspect.classify_class_attrs() and grouped in pydoc ouput. Added
types.ClassMethodDescriptorType for unbound class methods of builtin types.
Misc/NEWS.d/next/Library/2017-12-10-21-19-14.bpo-29137.CFcON1.rst deleted 100644 → 0
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The ``fpectl`` library has been removed. It was never enabled by default,
never worked correctly on x86-64, and it changed the Python ABI in ways that
caused unexpected breakage of C extensions.
Misc/NEWS.d/next/Library/2017-12-10-23-44-56.bpo-30050.4SZ3lY.rst deleted 100644 → 0
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New argument warn_on_full_buffer to signal.set_wakeup_fd lets you control
whether Python prints a warning on stderr when the wakeup fd buffer
overflows.
Misc/NEWS.d/next/Library/2017-12-11-09-53-14.bpo-32277.jkKiVC.rst deleted 100644 → 0
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Raise ``NotImplementedError`` instead of ``SystemError`` on platforms where
``chmod(..., follow_symlinks=False)`` is not supported. Patch by Anthony
Sottile.
Misc/NEWS.d/next/Library/2017-12-12-07-29-06.bpo-32255.2bfNmM.rst deleted 100644 → 0
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A single empty field is now always quoted when written into a CSV file.
This allows to distinguish an empty row from a row consisting of a single empty field.
Patch by Licht Takeuchi.
Misc/NEWS.d/next/Library/2017-12-12-16-58-20.bpo-32250.UljTa0.rst deleted 100644 → 0
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Implement ``asyncio.current_task()`` and ``asyncio.all_tasks()``. Add
helpers intended to be used by alternative task implementations:
``asyncio._register_task``, ``asyncio._enter_task``, ``asyncio._leave_task``
and ``asyncio._unregister_task``. Deprecate ``asyncio.Task.current_task()``
and ``asyncio.Task.all_tasks()``.
Misc/NEWS.d/next/Library/2017-12-12-18-01-01.bpo-32296.bwscHz.rst deleted 100644 → 0
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Implement asyncio._get_running_loop() and get_event_loop() in C. This makes
them 4x faster.
Misc/NEWS.d/next/Library/2017-12-13-00-00-37.bpo-17852.Q8BP8N.rst deleted 100644 → 0
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Revert incorrect fix based on misunderstanding of _Py_PyAtExit() semantics.
Misc/NEWS.d/next/Library/2017-12-13-19-02-38.bpo-29970.uxVOpk.rst deleted 100644 → 0
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Abort asyncio SSLProtocol connection if handshake not complete within 10s
Misc/NEWS.d/next/Library/2017-12-13-20-31-30.bpo-32308.CUbsb2.rst deleted 100644 → 0
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:func:`re.sub()` now replaces empty matches adjacent to a previous non-empty
match.
Misc/NEWS.d/next/Library/2017-12-13-22-10-36.bpo-29711.hJjghA.rst deleted 100644 → 0
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Fix ``stop_serving`` in asyncio proactor loop kill all listening servers
Misc/NEWS.d/next/Library/2017-12-13-22-38-08.bpo-32302.othtTr.rst deleted 100644 → 0
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Fix bdist_wininst of distutils for CRT v142: it binary compatible with CRT
v140.
Misc/NEWS.d/next/Library/2017-12-14-10-10-10.bpo-32323.ideco.rst deleted 100644 → 0
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:func:`urllib.parse.urlsplit()` does not convert zone-id (scope) to lower case
for scoped IPv6 addresses in hostnames now.
Misc/NEWS.d/next/Library/2017-12-14-16-00-25.bpo-32327.bbkSxA.rst deleted 100644 → 0
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Convert asyncio functions that were documented as coroutines to coroutines.
Affected functions: loop.sock_sendall, loop.sock_recv, loop.sock_accept,
loop.run_in_executor, loop.getaddrinfo, loop.getnameinfo.
Misc/NEWS.d/next/Library/2017-12-15-15-34-12.bpo-32248.zmO8G2.rst deleted 100644 → 0
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Add :class:`importlib.abc.ResourceReader` as an ABC for loaders to provide a
unified API for reading resources contained within packages. Also add
:mod:`importlib.resources` as the port of ``importlib_resources``.
Misc/NEWS.d/next/Library/2017-12-15-23-48-43.bpo-32331.fIg1Uc.rst deleted 100644 → 0
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Fix socket.settimeout() and socket.setblocking() to keep socket.type
as is. Fix socket.socket() constructor to reset any bit flags applied to
socket's type. This change only affects OSes that have SOCK_NONBLOCK
and/or SOCK_CLOEXEC.
Misc/NEWS.d/next/Library/2017-12-16-18-50-57.bpo-32348.5j__he.rst deleted 100644 → 0
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Optimize asyncio.Future schedule/add/remove callback. The optimization
shows 3-6% performance improvements of async/await code.
Misc/NEWS.d/next/Library/2017-12-17-14-23-23.bpo-32351.95fh2K.rst deleted 100644 → 0
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Use fastpath in asyncio.sleep if delay<0 (2x boost)
Misc/NEWS.d/next/Library/2017-12-17-22-50-51.bpo-32356.roZJpA.rst deleted 100644 → 0
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asyncio.transport.resume_reading() and pause_reading() are now idempotent.
New transport.is_reading() method is added.
Misc/NEWS.d/next/Library/2017-12-18-00-36-41.bpo-32357.t1F3sn.rst deleted 100644 → 0
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Optimize asyncio.iscoroutine() and loop.create_task() for non-native
coroutines (e.g. async/await compiled with Cython).
'loop.create_task(python_coroutine)' used to be 20% faster than
'loop.create_task(cython_coroutine)'. Now, the latter is as fast.
Misc/NEWS.d/next/Library/2017-12-19-00-37-28.bpo-32363.YTeGU0.rst deleted 100644 → 0
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Make asyncio.Task.set_exception() and set_result() raise
NotImplementedError. Task._step() and Future.__await__() raise proper
exceptions when they are in an invalid state, instead of raising an
AssertionError.
Misc/NEWS.d/next/Library/2017-12-21-11-08-42.bpo-26133.mt81QV.rst deleted 100644 → 0
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Don't unsubscribe signals in asyncio UNIX event loop on interpreter shutdown.
Misc/NEWS.d/next/Library/2017-12-23-12-45-00.bpo-32415.YufXTU.rst deleted 100644 → 0
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asyncio: Add Task.get_loop() and Future.get_loop()
Misc/NEWS.d/next/Library/2017-12-25-11-09-46.bpo-31721.5gM972.rst deleted 100644 → 0
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Prevent Python crash from happening when Future._log_traceback is set to
True manually. Now it can only be set to False, or a ValueError is raised.
Misc/NEWS.d/next/Library/2017-12-25-20-22-47.bpo-32422.5H3Wq2.rst deleted 100644 → 0
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``functools.lru_cache`` uses less memory (3 words for each cached key) and
takes about 1/3 time for cyclic GC.
Misc/NEWS.d/next/Library/2017-12-28-21-30-40.bpo-32441.LqlboJ.rst deleted 100644 → 0
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Return the new file descriptor (i.e., the second argument) from ``os.dup2``.
Previously, ``None`` was always returned.
Misc/NEWS.d/next/Library/2017-12-31-20-32-58.bpo-32468.YBs__0.rst deleted 100644 → 0
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Improve frame repr() to mention filename, code name and current line number.
Misc/NEWS.d/next/Library/2018-01-06-10-54-16.bpo-32499.koyY-4.rst deleted 100644 → 0
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Add dataclasses.is_dataclass(obj), which returns True if obj is a dataclass
or an instance of one.
Misc/NEWS.d/next/Library/2018-01-06-15-15-34.bpo-32278.bGnGc0.rst deleted 100644 → 0
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Make type information optional on dataclasses.make_dataclass(). If omitted,
the string 'typing.Any' is used.
Misc/NEWS.d/next/Library/2018-01-06-16-50-11.bpo-32279.1xOpU8.rst deleted 100644 → 0
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Add params to dataclasses.make_dataclasses(): init, repr, eq, order, hash,
and frozen. Pass them through to dataclass().
Misc/NEWS.d/next/Library/2018-01-07-11-32-42.bpo-32506.MaT-zU.rst deleted 100644 → 0
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Now that dict is defined as keeping insertion order, drop OrderedDict and
just use plain dict.
Misc/NEWS.d/next/Tests/2017-11-11-16-35-18.bpo-32002.itDxIo.rst deleted 100644 → 0
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Adjust C locale coercion testing for the empty locale and POSIX locale
cases to more readily adjust to platform dependent behaviour.
Misc/NEWS.d/next/Tests/2017-12-11-13-31-33.bpo-32252.YnFw7J.rst deleted 100644 → 0
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Fix faulthandler_suppress_crash_report() used to prevent core dump files
when testing crashes. getrlimit() returns zero on success.
Misc/NEWS.d/next/Tools-Demos/2017-12-22-09-25-51.bpo-24960.TGdAgO.rst deleted 100644 → 0
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2to3 and lib2to3 can now read pickled grammar files using pkgutil.get_data()
rather than probing the filesystem. This lets 2to3 and lib2to3 work when run
from a zipfile.
Misc/NEWS.d/next/Windows/2017-08-18-18-00-24.bpo-19764.ODpc9y.rst deleted 100644 → 0
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Implement support for `subprocess.Popen(close_fds=True)` on Windows. Patch
by Segev Finer.
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