库

• bpo-24847 [https://bugs.python.org/issue?@action=redirect&bpo=24847]: Removes vcruntime140.dll dependency from Tcl/Tk.

• bpo-24839 [https://bugs.python.org/issue?@action=redirect&bpo=24839]: platform.syscmdver raises DeprecationWarning

• bpo-24867 [https://bugs.python.org/issue?@action=redirect&bpo=24867]: Fix Task.get_stack() for 'async def' coroutines

Python 3.5.0 rc1

发布日期: 2015-08-09

核心与内置函数

• bpo-24667 [https://bugs.python.org/issue?@action=redirect&bpo=24667]: Resize odict in all cases that the underlying dict resizes.

库

• bpo-24824 [https://bugs.python.org/issue?@action=redirect&bpo=24824]: Signatures of codecs.encode() and codecs.decode() now are compatible with pydoc.

• bpo-24634 [https://bugs.python.org/issue?@action=redirect&bpo=24634]: Importing uuid should not try to load libc on Windows

• bpo-24798 [https://bugs.python.org/issue?@action=redirect&bpo=24798]: _msvccompiler.py doesn't properly support manifests

• bpo-4395 [https://bugs.python.org/issue?@action=redirect&bpo=4395]: Better testing and documentation of binary operators. Patch by Martin Panter.

• bpo-23973 [https://bugs.python.org/issue?@action=redirect&bpo=23973]: Update typing.py from GitHub repo.

• bpo-23004 [https://bugs.python.org/issue?@action=redirect&bpo=23004]: mock_open() now reads binary data correctly when the type of read_data is bytes. Initial patch by Aaron Hill.

• bpo-23888 [https://bugs.python.org/issue?@action=redirect&bpo=23888]: Handle fractional time in cookie expiry. Patch by ssh.

• bpo-23652 [https://bugs.python.org/issue?@action=redirect&bpo=23652]: Make it possible to compile the select module against the libc headers from the Linux Standard Base, which do not include some EPOLL macros. Patch by Matt Frank.

• bpo-22932 [https://bugs.python.org/issue?@action=redirect&bpo=22932]: Fix timezones in email.utils.formatdate. Patch from Dmitry Shachnev.

• bpo-23779 [https://bugs.python.org/issue?@action=redirect&bpo=23779]: imaplib raises TypeError if authenticator tries to abort. Patch from Craig Holmquist.

• bpo-23319 [https://bugs.python.org/issue?@action=redirect&bpo=23319]: Fix ctypes.BigEndianStructure, swap correctly bytes. Patch written by Matthieu Gautier.

• bpo-23254 [https://bugs.python.org/issue?@action=redirect&bpo=23254]: Document how to close the TCPServer listening socket. Patch from Martin Panter.

• bpo-19450 [https://bugs.python.org/issue?@action=redirect&bpo=19450]: Update Windows and OS X installer builds to use SQLite 3.8.11.

• bpo-17527 [https://bugs.python.org/issue?@action=redirect&bpo=17527]: Add PATCH to wsgiref.validator. Patch from Luca Sbardella.

• bpo-24791 [https://bugs.python.org/issue?@action=redirect&bpo=24791]: Fix grammar regression for call syntax: 'g(*a or b)'.

IDLE

• bpo-23672 [https://bugs.python.org/issue?@action=redirect&bpo=23672]: Allow Idle to edit and run files with astral chars in name. Patch by Mohd Sanad Zaki Rizvi.

• bpo-24745 [https://bugs.python.org/issue?@action=redirect&bpo=24745]: Idle editor default font. Switch from Courier to platform-sensitive TkFixedFont. This should not affect current customized font selections. If there is a problem, edit $HOME/.idlerc/config-main.cfg and remove 'fontxxx' entries from [Editor Window]. Patch by Mark Roseman.

• bpo-21192 [https://bugs.python.org/issue?@action=redirect&bpo=21192]: Idle editor. When a file is run, put its name in the restart bar. Do not print false prompts. Original patch by Adnan Umer.

• bpo-13884 [https://bugs.python.org/issue?@action=redirect&bpo=13884]: Idle menus. Remove tearoff lines. Patch by Roger Serwy.

文档

• bpo-24129 [https://bugs.python.org/issue?@action=redirect&bpo=24129]: Clarify the reference documentation for name resolution. This includes removing the assumption that readers will be familiar with the name resolution scheme Python used prior to the introduction of lexical scoping for function namespaces. Patch by Ivan Levkivskyi.

• bpo-20769 [https://bugs.python.org/issue?@action=redirect&bpo=20769]: Improve reload() docs. Patch by Dorian Pula.

• bpo-23589 [https://bugs.python.org/issue?@action=redirect&bpo=23589]: Remove duplicate sentence from the FAQ. Patch by Yongzhi Pan.

• bpo-24729 [https://bugs.python.org/issue?@action=redirect&bpo=24729]: Correct IO tutorial to match implementation regarding encoding parameter to open function.

测试

• bpo-24751 [https://bugs.python.org/issue?@action=redirect&bpo=24751]: When running regrtest with the -w command line option, a test run is no longer marked as a failure if all tests succeed when re-run.

Python 3.5.0 beta 4

发布日期: 2015-07-26

核心与内置函数

• bpo-23573 [https://bugs.python.org/issue?@action=redirect&bpo=23573]: Restored optimization of bytes.rfind() and bytearray.rfind() for single-byte argument on Linux.

• bpo-24569 [https://bugs.python.org/issue?@action=redirect&bpo=24569]: Make PEP 448 [https://peps.python.org/pep-0448/] dictionary evaluation more consistent.

• bpo-24583 [https://bugs.python.org/issue?@action=redirect&bpo=24583]: Fix crash when set is mutated while being updated.

• bpo-24407 [https://bugs.python.org/issue?@action=redirect&bpo=24407]: Fix crash when dict is mutated while being updated.

• bpo-24619 [https://bugs.python.org/issue?@action=redirect&bpo=24619]: New approach for tokenizing async/await. As a consequence, it is now possible to have one-line 'async def foo(): await ..' functions.

• bpo-24687 [https://bugs.python.org/issue?@action=redirect&bpo=24687]: Plug refleak on SyntaxError in function parameters annotations.

• bpo-15944 [https://bugs.python.org/issue?@action=redirect&bpo=15944]: memoryview: Allow arbitrary formats when casting to bytes. Patch by Martin Panter.

库

• bpo-23441 [https://bugs.python.org/issue?@action=redirect&bpo=23441]: rcompleter now prints a tab character instead of displaying possible completions for an empty word. Initial patch by Martin Sekera.

• bpo-24683 [https://bugs.python.org/issue?@action=redirect&bpo=24683]: Fixed crashes in _json functions called with arguments of inappropriate type.

• bpo-21697 [https://bugs.python.org/issue?@action=redirect&bpo=21697]: shutil.copytree() now correctly handles symbolic links that point to directories. Patch by Eduardo Seabra and Thomas Kluyver.

• bpo-14373 [https://bugs.python.org/issue?@action=redirect&bpo=14373]: Fixed segmentation fault when gc.collect() is called during constructing lru_cache (C implementation).

• bpo-24695 [https://bugs.python.org/issue?@action=redirect&bpo=24695]: Fix a regression in traceback.print_exception(). If exc_traceback is None we shouldn't print a traceback header like described in the documentation.

• bpo-24620 [https://bugs.python.org/issue?@action=redirect&bpo=24620]: Random.setstate() now validates the value of state last element.

• bpo-22485 [https://bugs.python.org/issue?@action=redirect&bpo=22485]: Fixed an issue that caused inspect.getsource to return incorrect results on nested functions.

• bpo-22153 [https://bugs.python.org/issue?@action=redirect&bpo=22153]: Improve unittest docs. Patch from Martin Panter and evilzero.

• bpo-24580 [https://bugs.python.org/issue?@action=redirect&bpo=24580]: Symbolic group references to open group in re patterns now are explicitly forbidden as well as numeric group references.

• bpo-24206 [https://bugs.python.org/issue?@action=redirect&bpo=24206]: Fixed eq and ne methods of inspect classes.

• bpo-24631 [https://bugs.python.org/issue?@action=redirect&bpo=24631]: Fixed regression in the timeit module with multiline setup.

• bpo-18622 [https://bugs.python.org/issue?@action=redirect&bpo=18622]: unittest.mock.mock_open().reset_mock would recurse infinitely. Patch from Nicola Palumbo and Laurent De Buyst.

• bpo-23661 [https://bugs.python.org/issue?@action=redirect&bpo=23661]: unittest.mock side_effects can now be exceptions again. This was a regression vs Python 3.4. Patch from Ignacio Rossi

• bpo-24608 [https://bugs.python.org/issue?@action=redirect&bpo=24608]: chunk.Chunk.read() now always returns bytes, not str.

• bpo-18684 [https://bugs.python.org/issue?@action=redirect&bpo=18684]: Fixed reading out of the buffer in the re module.

• bpo-24259 [https://bugs.python.org/issue?@action=redirect&bpo=24259]: tarfile now raises a ReadError if an archive is truncated inside a data segment.

• bpo-15014 [https://bugs.python.org/issue?@action=redirect&bpo=15014]: SMTP.auth() and SMTP.login() now support RFC 4954's optional initial-response argument to the SMTP AUTH command.

• bpo-24669 [https://bugs.python.org/issue?@action=redirect&bpo=24669]: Fix inspect.getsource() for 'async def' functions. Patch by Kai Groner.

• bpo-24688 [https://bugs.python.org/issue?@action=redirect&bpo=24688]: ast.get_docstring() for 'async def' functions.

构建

• bpo-24603 [https://bugs.python.org/issue?@action=redirect&bpo=24603]: Update Windows builds and OS X 10.5 installer to use OpenSSL 1.0.2d.

Python 3.5.0 beta 3

发布日期: 2015-07-05

核心与内置函数

• bpo-24467 [https://bugs.python.org/issue?@action=redirect&bpo=24467]: Fixed possible buffer overread in bytearray. The bytearray object now always allocates place for trailing null byte and it's buffer now is always null-terminated.

• Upgrade to Unicode 8.0.0.

• bpo-24345 [https://bugs.python.org/issue?@action=redirect&bpo=24345]: Add Py_tp_finalize slot for the stable ABI.

• bpo-24400 [https://bugs.python.org/issue?@action=redirect&bpo=24400]: Introduce a distinct type for PEP 492 [https://peps.python.org/pep-0492/] coroutines; add types.CoroutineType, inspect.getcoroutinestate, inspect.getcoroutinelocals; coroutines no longer use CO_GENERATOR flag; sys.set_coroutine_wrapper works only for 'async def' coroutines; inspect.iscoroutine no longer uses collections.abc.Coroutine, it's intended to test for pure 'async def' coroutines only; add new opcode: GET_YIELD_FROM_ITER; fix generators wrapper used in types.coroutine to be instance of collections.abc.Generator; collections.abc.Awaitable and collections.abc.Coroutine can no longer be used to detect generator-based coroutines—use inspect.isawaitable instead.

• bpo-24450 [https://bugs.python.org/issue?@action=redirect&bpo=24450]: Add gi_yieldfrom to generators and cr_await to coroutines. Contributed by Benno Leslie and Yury Selivanov.

• bpo-19235 [https://bugs.python.org/issue?@action=redirect&bpo=19235]: Add new RecursionError exception. Patch by Georg Brandl.

库

• bpo-21750 [https://bugs.python.org/issue?@action=redirect&bpo=21750]: mock_open.read_data can now be read from each instance, as it could in Python 3.3.

• bpo-24552 [https://bugs.python.org/issue?@action=redirect&bpo=24552]: Fix use after free in an error case of the _pickle module.

• bpo-24514 [https://bugs.python.org/issue?@action=redirect&bpo=24514]: tarfile now tolerates number fields consisting of only whitespace.

• bpo-19176 [https://bugs.python.org/issue?@action=redirect&bpo=19176]: Fixed doctype() related bugs in C implementation of ElementTree. A deprecation warning no longer issued by XMLParser subclass with default doctype() method. Direct call of doctype() now issues a warning. Parser's doctype() now is not called if target's doctype() is called. Based on patch by Martin Panter.

• bpo-20387 [https://bugs.python.org/issue?@action=redirect&bpo=20387]: Restore semantic round-trip correctness in tokenize/untokenize for tab-indented blocks.

• bpo-24456 [https://bugs.python.org/issue?@action=redirect&bpo=24456]: Fixed possible buffer overread in adpcm2lin() and lin2adpcm() functions of the audioop module.

• bpo-24336 [https://bugs.python.org/issue?@action=redirect&bpo=24336]: The contextmanager decorator now works with functions with keyword arguments called "func" and "self". Patch by Martin Panter.

• bpo-24522 [https://bugs.python.org/issue?@action=redirect&bpo=24522]: Fix possible integer overflow in json accelerator module.

• bpo-24489 [https://bugs.python.org/issue?@action=redirect&bpo=24489]: ensure a previously set C errno doesn't disturb cmath.polar().

• bpo-24408 [https://bugs.python.org/issue?@action=redirect&bpo=24408]: Fixed AttributeError in measure() and metrics() methods of tkinter.Font.

• bpo-14373 [https://bugs.python.org/issue?@action=redirect&bpo=14373]: C implementation of functools.lru_cache() now can be used with methods.

• bpo-24347 [https://bugs.python.org/issue?@action=redirect&bpo=24347]: Set KeyError if PyDict_GetItemWithError returns NULL.

• bpo-24348 [https://bugs.python.org/issue?@action=redirect&bpo=24348]: Drop superfluous incref/decref.

• bpo-24359 [https://bugs.python.org/issue?@action=redirect&bpo=24359]: Check for changed OrderedDict size during iteration.

• bpo-24368 [https://bugs.python.org/issue?@action=redirect&bpo=24368]: Support keyword arguments in OrderedDict methods.

• bpo-24362 [https://bugs.python.org/issue?@action=redirect&bpo=24362]: Simplify the C OrderedDict fast nodes resize logic.

• bpo-24377 [https://bugs.python.org/issue?@action=redirect&bpo=24377]: Fix a ref leak in OrderedDict.repr.

• bpo-24369 [https://bugs.python.org/issue?@action=redirect&bpo=24369]: Defend against key-changes during iteration.

测试

• bpo-24373 [https://bugs.python.org/issue?@action=redirect&bpo=24373]: testmultiphase and xxlimited now use tptraverse and tp_finalize to avoid reference leaks encountered when combining tp_dealloc with PyType_FromSpec (see bpo-16690 [https://bugs.python.org/issue?@action=redirect&bpo=16690] for details)

文档

• bpo-24458 [https://bugs.python.org/issue?@action=redirect&bpo=24458]: Update documentation to cover multiphase initialization for extension modules (PEP 489). Patch by Petr Viktorin.

• bpo-24351 [https://bugs.python.org/issue?@action=redirect&bpo=24351]: Clarify what is meant by "identifier" in the context of string.Template instances.

构建

• bpo-24432 [https://bugs.python.org/issue?@action=redirect&bpo=24432]: Update Windows builds and OS X 10.5 installer to use OpenSSL 1.0.2c.

Python 3.5.0 beta 2

发布日期: 2015-05-31

核心与内置函数

• bpo-24284 [https://bugs.python.org/issue?@action=redirect&bpo=24284]: The startswith and endswith methods of the str class no longer return True when finding the empty string and the indexes are completely out of range.

• bpo-24115 [https://bugs.python.org/issue?@action=redirect&bpo=24115]: Update uses of PyObject_IsTrue(), PyObject_Not(), PyObject_IsInstance(), PyObject_RichCompareBool() and PyDictContains() to check for and handle errors correctly.

• bpo-24328 [https://bugs.python.org/issue?@action=redirect&bpo=24328]: Fix importing one character extension modules.

• bpo-11205 [https://bugs.python.org/issue?@action=redirect&bpo=11205]: In dictionary displays, evaluate the key before the value.

• bpo-24285 [https://bugs.python.org/issue?@action=redirect&bpo=24285]: Fixed regression that prevented importing extension modules from inside packages. Patch by Petr Viktorin.

库

• bpo-23247 [https://bugs.python.org/issue?@action=redirect&bpo=23247]: Fix a crash in the StreamWriter.reset() of CJK codecs.

• bpo-24270 [https://bugs.python.org/issue?@action=redirect&bpo=24270]: Add math.isclose() and cmath.isclose() functions as per PEP 485 [https://peps.python.org/pep-0485/]. Contributed by Chris Barker and Tal Einat.

• bpo-5633 [https://bugs.python.org/issue?@action=redirect&bpo=5633]: Fixed timeit when the statement is a string and the setup is not.

• bpo-24326 [https://bugs.python.org/issue?@action=redirect&bpo=24326]: Fixed audioop.ratecv() with non-default weightB argument. Original patch by David Moore.

• bpo-16991 [https://bugs.python.org/issue?@action=redirect&bpo=16991]: Add a C implementation of OrderedDict.

• bpo-23934 [https://bugs.python.org/issue?@action=redirect&bpo=23934]: Fix inspect.signature to fail correctly for builtin types lacking signature information. Initial patch by James Powell.

Python 3.5.0 beta 1

发布日期: 2015-05-24

核心与内置函数

• bpo-24276 [https://bugs.python.org/issue?@action=redirect&bpo=24276]: Fixed optimization of property descriptor getter.

• bpo-24268 [https://bugs.python.org/issue?@action=redirect&bpo=24268]: PEP 489: Multiphase extension module initialization. Patch by Petr Viktorin.

• bpo-23955 [https://bugs.python.org/issue?@action=redirect&bpo=23955]: Add pyvenv.cfg option to suppress registry/environment lookup for generating sys.path on Windows.

• bpo-24257 [https://bugs.python.org/issue?@action=redirect&bpo=24257]: Fixed system error in the comparison of faked types.SimpleNamespace.

• bpo-22939 [https://bugs.python.org/issue?@action=redirect&bpo=22939]: Fixed integer overflow in iterator object. Patch by Clement Rouault.

• bpo-23985 [https://bugs.python.org/issue?@action=redirect&bpo=23985]: Fix a possible buffer overrun when deleting a slice from the front of a bytearray and then appending some other bytes data.

• bpo-24102 [https://bugs.python.org/issue?@action=redirect&bpo=24102]: Fixed exception type checking in standard error handlers.

• bpo-15027 [https://bugs.python.org/issue?@action=redirect&bpo=15027]: The UTF-32 encoder is now 3x to 7x faster.

• bpo-23290 [https://bugs.python.org/issue?@action=redirect&bpo=23290]: Optimize set_merge() for cases where the target is empty. (Contributed by Serhiy Storchaka.)

• bpo-2292 [https://bugs.python.org/issue?@action=redirect&bpo=2292]: PEP 448: Additional Unpacking Generalizations.

• bpo-24096 [https://bugs.python.org/issue?@action=redirect&bpo=24096]: Make warnings.warn_explicit more robust against mutation of the warnings.filters list.

• bpo-23996 [https://bugs.python.org/issue?@action=redirect&bpo=23996]: Avoid a crash when a delegated generator raises an unnormalized StopIteration exception. Patch by Stefan Behnel.

• bpo-23910 [https://bugs.python.org/issue?@action=redirect&bpo=23910]: Optimize property() getter calls. Patch by Joe Jevnik.

• bpo-23911 [https://bugs.python.org/issue?@action=redirect&bpo=23911]: Move path-based importlib bootstrap code to a separate frozen module.

• bpo-24192 [https://bugs.python.org/issue?@action=redirect&bpo=24192]: Fix namespace package imports.

• bpo-24022 [https://bugs.python.org/issue?@action=redirect&bpo=24022]: Fix tokenizer crash when processing undecodable source code.

• bpo-9951 [https://bugs.python.org/issue?@action=redirect&bpo=9951]: Added a hex() method to bytes, bytearray, and memoryview.

• bpo-22906 [https://bugs.python.org/issue?@action=redirect&bpo=22906]: PEP 479: Change StopIteration handling inside generators.

• bpo-24017 [https://bugs.python.org/issue?@action=redirect&bpo=24017]: PEP 492: Coroutines with async and await syntax.

库

• bpo-14373 [https://bugs.python.org/issue?@action=redirect&bpo=14373]: Added C implementation of functools.lru_cache(). Based on patches by Matt Joiner and Alexey Kachayev.

• bpo-24230 [https://bugs.python.org/issue?@action=redirect&bpo=24230]: The tempfile module now accepts bytes for prefix, suffix and dir parameters and returns bytes in such situations (matching the os module APIs).

• bpo-22189 [https://bugs.python.org/issue?@action=redirect&bpo=22189]: collections.UserString now supports getnewargs(), rmod(), casefold(), format_map(), isprintable(), and maketrans(). Patch by Joe Jevnik.

• bpo-24244 [https://bugs.python.org/issue?@action=redirect&bpo=24244]: Prevents termination when an invalid format string is encountered on Windows in strftime.

• bpo-23973 [https://bugs.python.org/issue?@action=redirect&bpo=23973]: PEP 484: Add the typing module.

• bpo-23086 [https://bugs.python.org/issue?@action=redirect&bpo=23086]: The collections.abc.Sequence() abstract base class added start and stop parameters to the index() mixin. Patch by Devin Jeanpierre.

• bpo-20035 [https://bugs.python.org/issue?@action=redirect&bpo=20035]: Replaced the tkinter._fix module used for setting up the Tcl/Tk environment on Windows with a private function in the _tkinter module that makes no permanent changes to the environment.

• bpo-24257 [https://bugs.python.org/issue?@action=redirect&bpo=24257]: Fixed segmentation fault in sqlite3.Row constructor with faked cursor type.

• bpo-15836 [https://bugs.python.org/issue?@action=redirect&bpo=15836]: assertRaises(), assertRaisesRegex(), assertWarns() and assertWarnsRegex() assertments now check the type of the first argument to prevent possible user error. Based on patch by Daniel Wagner-Hall.

• bpo-9858 [https://bugs.python.org/issue?@action=redirect&bpo=9858]: Add missing method stubs to _io.RawIOBase. Patch by Laura Rupprecht.

• bpo-22955 [https://bugs.python.org/issue?@action=redirect&bpo=22955]: attrgetter, itemgetter and methodcaller objects in the operator module now support pickling. Added readable and evaluable repr for these objects. Based on patch by Josh Rosenberg.

• bpo-22107 [https://bugs.python.org/issue?@action=redirect&bpo=22107]: tempfile.gettempdir() and tempfile.mkdtemp() now try again when a directory with the chosen name already exists on Windows as well as on Unix. tempfile.mkstemp() now fails early if parent directory is not valid (not exists or is a file) on Windows.

• bpo-23780 [https://bugs.python.org/issue?@action=redirect&bpo=23780]: Improved error message in os.path.join() with single argument.

• bpo-6598 [https://bugs.python.org/issue?@action=redirect&bpo=6598]: Increased time precision and random number range in email.utils.make_msgid() to strengthen the uniqueness of the message ID.

• bpo-24091 [https://bugs.python.org/issue?@action=redirect&bpo=24091]: Fixed various crashes in corner cases in C implementation of ElementTree.

• bpo-21931 [https://bugs.python.org/issue?@action=redirect&bpo=21931]: msilib.FCICreate() now raises TypeError in the case of a bad argument instead of a ValueError with a bogus FCI error number. Patch by Jeffrey Armstrong.

• bpo-13866 [https://bugs.python.org/issue?@action=redirect&bpo=13866]: quote_via argument added to urllib.parse.urlencode.

• bpo-20098 [https://bugs.python.org/issue?@action=redirect&bpo=20098]: New mangle_from policy option for email, default True for compat32, but False for all other policies.

• bpo-24211 [https://bugs.python.org/issue?@action=redirect&bpo=24211]: The email library now supports RFC 6532: it can generate headers using utf-8 instead of encoded words.

• bpo-16314 [https://bugs.python.org/issue?@action=redirect&bpo=16314]: Added support for the LZMA compression in distutils.

• bpo-21804 [https://bugs.python.org/issue?@action=redirect&bpo=21804]: poplib now supports RFC 6856 (UTF8).

• bpo-18682 [https://bugs.python.org/issue?@action=redirect&bpo=18682]: Optimized pprint functions for builtin scalar types.

• bpo-22027 [https://bugs.python.org/issue?@action=redirect&bpo=22027]: smtplib now supports RFC 6531 (SMTPUTF8).

• bpo-23488 [https://bugs.python.org/issue?@action=redirect&bpo=23488]: Random generator objects now consume 2x less memory on 64-bit.

• bpo-1322 [https://bugs.python.org/issue?@action=redirect&bpo=1322]: platform.dist() and platform.linux_distribution() functions are now deprecated. Initial patch by Vajrasky Kok.

• bpo-22486 [https://bugs.python.org/issue?@action=redirect&bpo=22486]: Added the math.gcd() function. The fractions.gcd() function now is deprecated. Based on patch by Mark Dickinson.

• bpo-24064 [https://bugs.python.org/issue?@action=redirect&bpo=24064]: Property() docstrings are now writeable. (Patch by Berker Peksag.)

• bpo-22681 [https://bugs.python.org/issue?@action=redirect&bpo=22681]: Added support for the koi8_t encoding.

• bpo-22682 [https://bugs.python.org/issue?@action=redirect&bpo=22682]: Added support for the kz1048 encoding.

• bpo-23796 [https://bugs.python.org/issue?@action=redirect&bpo=23796]: peek and read1 methods of BufferedReader now raise ValueError if they called on a closed object. Patch by John Hergenroeder.

• bpo-21795 [https://bugs.python.org/issue?@action=redirect&bpo=21795]: smtpd now supports the 8BITMIME extension whenever the new decode_data constructor argument is set to False.

• bpo-24155 [https://bugs.python.org/issue?@action=redirect&bpo=24155]: optimize heapq.heapify() for better cache performance when heapifying large lists.

• bpo-21800 [https://bugs.python.org/issue?@action=redirect&bpo=21800]: imaplib now supports RFC 5161 (enable), RFC 6855 (utf8/internationalized email) and automatically encodes nonASCII usernames and passwords to UTF8.

• bpo-20274 [https://bugs.python.org/issue?@action=redirect&bpo=20274]: When calling a _sqlite.Connection, it now complains if passed any keyword arguments. Previously it silently ignored them.

• bpo-20274 [https://bugs.python.org/issue?@action=redirect&bpo=20274]: Remove ignored and erroneous "kwargs" parameters from three METH_VARARGS methods on _sqlite.Connection.

• bpo-24134 [https://bugs.python.org/issue?@action=redirect&bpo=24134]: assertRaises(), assertRaisesRegex(), assertWarns() and assertWarnsRegex() checks now emits a deprecation warning when callable is None or keyword arguments except msg is passed in the context manager mode.

• bpo-24018 [https://bugs.python.org/issue?@action=redirect&bpo=24018]: Add a collections.abc.Generator abstract base class. Contributed by Stefan Behnel.

• bpo-23880 [https://bugs.python.org/issue?@action=redirect&bpo=23880]: Tkinter's getint() and getdouble() now support Tcl_Obj. Tkinter's getdouble() now supports any numbers (in particular int).

• bpo-22619 [https://bugs.python.org/issue?@action=redirect&bpo=22619]: Added negative limit support in the traceback module. Based on patch by Dmitry Kazakov.

• bpo-24094 [https://bugs.python.org/issue?@action=redirect&bpo=24094]: Fix possible crash in json.encode with poorly behaved dict subclasses.

• bpo-9246 [https://bugs.python.org/issue?@action=redirect&bpo=9246]: On POSIX, os.getcwd() now supports paths longer than 1025 bytes. Patch written by William Orr.

• bpo-17445 [https://bugs.python.org/issue?@action=redirect&bpo=17445]: add difflib.diff_bytes() to support comparison of byte strings (fixes a regression from Python 2).

• bpo-23917 [https://bugs.python.org/issue?@action=redirect&bpo=23917]: Fall back to sequential compilation when ProcessPoolExecutor doesn't exist. Patch by Claudiu Popa.

• bpo-23008 [https://bugs.python.org/issue?@action=redirect&bpo=23008]: Fixed resolving attributes with boolean value is False in pydoc.

• Fix asyncio issue 235: LifoQueue and PriorityQueue's put didn't increment unfinished tasks (this bug was introduced when JoinableQueue was merged with Queue).

• bpo-23908 [https://bugs.python.org/issue?@action=redirect&bpo=23908]: os functions now reject paths with embedded null character on Windows instead of silently truncating them.

• bpo-23728 [https://bugs.python.org/issue?@action=redirect&bpo=23728]: binascii.crc_hqx() could return an integer outside of the range 0-0xffff for empty data.

• bpo-23887 [https://bugs.python.org/issue?@action=redirect&bpo=23887]: urllib.error.HTTPError now has a proper repr() representation. Patch by Berker Peksag.

• asyncio: New event loop APIs: set_task_factory() and get_task_factory().

• asyncio: async() function is deprecated in favour of ensure_future().

• bpo-24178 [https://bugs.python.org/issue?@action=redirect&bpo=24178]: asyncio.Lock, Condition, Semaphore, and BoundedSemaphore support new 'async with' syntax. Contributed by Yury Selivanov.

• bpo-24179 [https://bugs.python.org/issue?@action=redirect&bpo=24179]: Support 'async for' for asyncio.StreamReader. Contributed by Yury Selivanov.

• bpo-24184 [https://bugs.python.org/issue?@action=redirect&bpo=24184]: Add AsyncIterator and AsyncIterable ABCs to collections.abc. Contributed by Yury Selivanov.

• bpo-22547 [https://bugs.python.org/issue?@action=redirect&bpo=22547]: Implement informative repr for inspect.BoundArguments. Contributed by Yury Selivanov.

• bpo-24190 [https://bugs.python.org/issue?@action=redirect&bpo=24190]: Implement inspect.BoundArgument.apply_defaults() method. Contributed by Yury Selivanov.

• bpo-20691 [https://bugs.python.org/issue?@action=redirect&bpo=20691]: Add 'follow_wrapped' argument to inspect.Signature.from_callable() and inspect.signature(). Contributed by Yury Selivanov.

• bpo-24248 [https://bugs.python.org/issue?@action=redirect&bpo=24248]: Deprecate inspect.Signature.from_function() and inspect.Signature.from_builtin().

• bpo-23898 [https://bugs.python.org/issue?@action=redirect&bpo=23898]: Fix inspect.classifyclassattrs() to support attributes with overloaded eq and __bool. Patch by Mike Bayer.

• bpo-24298 [https://bugs.python.org/issue?@action=redirect&bpo=24298]: Fix inspect.signature() to correctly unwrap wrappers around bound methods.

IDLE

• bpo-23184 [https://bugs.python.org/issue?@action=redirect&bpo=23184]: remove unused names and imports in idlelib. Initial patch by Al Sweigart.

测试

• bpo-21520 [https://bugs.python.org/issue?@action=redirect&bpo=21520]: test_zipfile no longer fails if the word 'bad' appears anywhere in the name of the current directory.

• bpo-9517 [https://bugs.python.org/issue?@action=redirect&bpo=9517]: Move script_helper into the support package. Patch by Christie Wilson.

文档

• bpo-22155 [https://bugs.python.org/issue?@action=redirect&bpo=22155]: Add File Handlers subsection with createfilehandler to tkinter doc. Remove obsolete example from FAQ. Patch by Martin Panter.

• bpo-24029 [https://bugs.python.org/issue?@action=redirect&bpo=24029]: Document the name binding behavior for submodule imports.

• bpo-24077 [https://bugs.python.org/issue?@action=redirect&bpo=24077]: Fix typo in man page for -I command option: -s, not -S

工具/示例

• bpo-24000 [https://bugs.python.org/issue?@action=redirect&bpo=24000]: Improved Argument Clinic's mapping of converters to legacy "format units". Updated the documentation to match.

• bpo-24001 [https://bugs.python.org/issue?@action=redirect&bpo=24001]: Argument Clinic converters now use accept={type} instead of types={'type'} to specify the types the converter accepts.

• bpo-23330 [https://bugs.python.org/issue?@action=redirect&bpo=23330]: h2py now supports arbitrary filenames in #include.

• bpo-24031 [https://bugs.python.org/issue?@action=redirect&bpo=24031]: make patchcheck now supports git checkouts, too.

Python 3.5.0 alpha 4

发布日期: 2015-04-19