From: Martin Panter Date: Sat, 31 Oct 2015 12:16:18 +0000 (+0000) Subject: Merge spelling fixes from 3.4 into 3.5 X-Git-Tag: v3.5.1rc1~112 X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=4827e488a4d1d82eb7bfeb194a7ad1d420535513;p=python Merge spelling fixes from 3.4 into 3.5 --- 4827e488a4d1d82eb7bfeb194a7ad1d420535513 diff --cc Misc/NEWS index 6a9afeb1e1,d2bb816b14..47c129b4f1 --- a/Misc/NEWS +++ b/Misc/NEWS @@@ -1642,1745 -1642,1779 +1642,1745 @@@ Release date: 2015-02-0 Core and Builtins ----------------- -- Issue #21274: Define PATH_MAX for GNU/Hurd in Python/pythonrun.c. - -- Issue #21209: Fix sending tuples to custom generator objects with the yield - from syntax. +- Issue #23285: PEP 475 - EINTR handling. -- Issue #21134: Fix segfault when str is called on an uninitialized - UnicodeEncodeError, UnicodeDecodeError, or UnicodeTranslateError object. +- Issue #22735: Fix many edge cases (including crashes) involving custom mro() + implementations. -- Issue #19537: Fix PyUnicode_DATA() alignment under m68k. Patch by - Andreas Schwab. +- Issue #22896: Avoid using PyObject_AsCharBuffer(), PyObject_AsReadBuffer() + and PyObject_AsWriteBuffer(). -- Issue #20929: Add a type cast to avoid shifting a negative number. +- Issue #21295: Revert some changes (issue #16795) to AST line numbers and + column offsets that constituted a regression. -- Issue #20731: Properly position in source code files even if they - are opened in text mode. Patch by Serhiy Storchaka. +- Issue #22986: Allow changing an object's __class__ between a dynamic type and + static type in some cases. -- Issue #20637: Key-sharing now also works for instance dictionaries of - subclasses. Patch by Peter Ingebretson. +- Issue #15859: PyUnicode_EncodeFSDefault(), PyUnicode_EncodeMBCS() and + PyUnicode_EncodeCodePage() now raise an exception if the object is not an + Unicode object. For PyUnicode_EncodeFSDefault(), it was already the case on + platforms other than Windows. Patch written by Campbell Barton. -- Issue #12546: Allow \x00 to be used as a fill character when using str, int, - float, and complex __format__ methods. +- Issue #21408: The default __ne__() now returns NotImplemented if __eq__() + returned NotImplemented. Original patch by Martin Panter. -- Issue #13598: Modify string.Formatter to support auto-numbering of - replacement fields. It now matches the behavior of str.format() in - this regard. Patches by Phil Elson and Ramchandra Apte. +- Issue #23321: Fixed a crash in str.decode() when error handler returned + replacment string longer than mailformed input data. -Library -------- +- Issue #22286: The "backslashreplace" error handlers now works with + decoding and translating. -- Issue #21088: Bugfix for curses.window.addch() regression in 3.4.0. - In porting to Argument Clinic, the first two arguments were reversed. +- Issue #23253: Delay-load ShellExecute[AW] in os.startfile for reduced + startup overhead on Windows. -- Issue #21469: Reduced the risk of false positives in robotparser by - checking to make sure that robots.txt has been read or does not exist - prior to returning True in can_fetch(). +- Issue #22038: pyatomic.h now uses stdatomic.h or GCC built-in functions for + atomic memory access if available. Patch written by Vitor de Lima and Gustavo + Temple. -- Issue #21321: itertools.islice() now releases the reference to the source - iterator when the slice is exhausted. Patch by Anton Afanasyev. +- Issue #20284: %-interpolation (aka printf) formatting added for bytes and + bytearray. -- Issue #9815: assertRaises now tries to clear references to local variables - in the exception's traceback. +- Issue #23048: Fix jumping out of an infinite while loop in the pdb. -- Issue #13204: Calling sys.flags.__new__ would crash the interpreter, - now it raises a TypeError. +- Issue #20335: bytes constructor now raises TypeError when encoding or errors + is specified with non-string argument. Based on patch by Renaud Blanch. -- Issue #19385: Make operations on a closed dbm.dumb database always raise the - same exception. +- Issue #22834: If the current working directory ends up being set to a + non-existent directory then import will no longer raise FileNotFoundError. -- Issue #21207: Detect when the os.urandom cached fd has been closed or - replaced, and open it anew. +- Issue #22869: Move the interpreter startup & shutdown code to a new + dedicated pylifecycle.c module -- Issue #21291: subprocess's Popen.wait() is now thread safe so that - multiple threads may be calling wait() or poll() on a Popen instance - at the same time without losing the Popen.returncode value. +- Issue #22847: Improve method cache efficiency. -- Issue #21127: Path objects can now be instantiated from str subclass - instances (such as ``numpy.str_``). +- Issue #22335: Fix crash when trying to enlarge a bytearray to 0x7fffffff + bytes on a 32-bit platform. -- Issue #15002: urllib.response object to use _TemporaryFileWrapper (and - _TemporaryFileCloser) facility. Provides a better way to handle file - descriptor close. Patch contributed by Christian Theune. +- Issue #22653: Fix an assertion failure in debug mode when doing a reentrant + dict insertion in debug mode. -- Issue #12220: mindom now raises a custom ValueError indicating it doesn't - support spaces in URIs instead of letting a 'split' ValueError bubble up. +- Issue #22643: Fix integer overflow in Unicode case operations (upper, lower, + title, swapcase, casefold). -- Issue #21239: patch.stopall() didn't work deterministically when the same - name was patched more than once. +- Issue #17636: Circular imports involving relative imports are now + supported. -- Issue #21222: Passing name keyword argument to mock.create_autospec now - works. +- Issue #22604: Fix assertion error in debug mode when dividing a complex + number by (nan+0j). -- Issue #21197: Add lib64 -> lib symlink in venvs on 64-bit non-OS X POSIX. +- Issue #21052: Do not raise ImportWarning when sys.path_hooks or sys.meta_path + are set to None. -- Issue #17498: Some SMTP servers disconnect after certain errors, violating - strict RFC conformance. Instead of losing the error code when we issue the - subsequent RSET, smtplib now returns the error code and defers raising the - SMTPServerDisconnected error until the next command is issued. +- Issue #16518: Use 'bytes-like object required' in error messages that + previously used the far more cryptic "'x' does not support the buffer + protocol. -- Issue #17826: setting an iterable side_effect on a mock function created by - create_autospec now works. Patch by Kushal Das. +- Issue #22470: Fixed integer overflow issues in "backslashreplace", + "xmlcharrefreplace", and "surrogatepass" error handlers. -- Issue #7776: Fix ``Host:`` header and reconnection when using - http.client.HTTPConnection.set_tunnel(). Patch by Nikolaus Rath. +- Issue #22540: speed up `PyObject_IsInstance` and `PyObject_IsSubclass` in the + common case that the second argument has metaclass `type`. -- Issue #20968: unittest.mock.MagicMock now supports division. - Patch by Johannes Baiter. +- Issue #18711: Add a new `PyErr_FormatV` function, similar to `PyErr_Format` + but accepting a `va_list` argument. -- Fix arbitrary memory access in JSONDecoder.raw_decode with a negative second - parameter. Bug reported by Guido Vranken. +- Issue #22520: Fix overflow checking when generating the repr of a unicode + object. -- Issue #21169: getpass now handles non-ascii characters that the - input stream encoding cannot encode by re-encoding using the - replace error handler. +- Issue #22519: Fix overflow checking in PyBytes_Repr. -- Issue #21171: Fixed undocumented filter API of the rot13 codec. - Patch by Berker Peksag. +- Issue #22518: Fix integer overflow issues in latin-1 encoding. -- Issue #21172: isinstance check relaxed from dict to collections.Mapping. +- Issue #16324: _charset parameter of MIMEText now also accepts + email.charset.Charset instances. Initial patch by Claude Paroz. -- Issue #21155: asyncio.EventLoop.create_unix_server() now raises a ValueError - if path and sock are specified at the same time. +- Issue #1764286: Fix inspect.getsource() to support decorated functions. + Patch by Claudiu Popa. -- Issue #21149: Improved thread-safety in logging cleanup during interpreter - shutdown. Thanks to Devin Jeanpierre for the patch. +- Issue #18554: os.__all__ includes posix functions. -- Issue #20145: `assertRaisesRegex` and `assertWarnsRegex` now raise a - TypeError if the second argument is not a string or compiled regex. +- Issue #21391: Use os.path.abspath in the shutil module. -- Issue #21058: Fix a leak of file descriptor in - :func:`tempfile.NamedTemporaryFile`, close the file descriptor if - :func:`io.open` fails +- Issue #11471: avoid generating a JUMP_FORWARD instruction at the end of + an if-block if there is no else-clause. Original patch by Eugene Toder. -- Issue #21200: Return None from pkgutil.get_loader() when __spec__ is missing. +- Issue #22215: Now ValueError is raised instead of TypeError when str or bytes + argument contains not permitted null character or byte. -- Issue #21013: Enhance ssl.create_default_context() when used for server side - sockets to provide better security by default. - -- Issue #20633: Replace relative import by absolute import. +- Issue #22258: Fix the internal function set_inheritable() on Illumos. + This platform exposes the function ``ioctl(FIOCLEX)``, but calling it fails + with errno is ENOTTY: "Inappropriate ioctl for device". set_inheritable() + now falls back to the slower ``fcntl()`` (``F_GETFD`` and then ``F_SETFD``). -- Issue #20980: Stop wrapping exception when using ThreadPool. +- Issue #21389: Displaying the __qualname__ of the underlying function in the + repr of a bound method. -- Issue #21082: In os.makedirs, do not set the process-wide umask. Note this - changes behavior of makedirs when exist_ok=True. +- Issue #22206: Using pthread, PyThread_create_key() now sets errno to ENOMEM + and returns -1 (error) on integer overflow. -- Issue #20990: Fix issues found by pyflakes for multiprocessing. +- Issue #20184: Argument Clinic based signature introspection added for + 30 of the builtin functions. -- Issue #21015: SSL contexts will now automatically select an elliptic - curve for ECDH key exchange on OpenSSL 1.0.2 and later, and otherwise - default to "prime256v1". +- Issue #22116: C functions and methods (of the 'builtin_function_or_method' + type) can now be weakref'ed. Patch by Wei Wu. -- Issue #20995: Enhance default ciphers used by the ssl module to enable - better security an prioritize perfect forward secrecy. +- Issue #22077: Improve index error messages for bytearrays, bytes, lists, + and tuples by adding 'or slices'. Added ', not ' for bytearrays. + Original patch by Claudiu Popa. -- Issue #20884: Don't assume that __file__ is defined on importlib.__init__. +- Issue #20179: Apply Argument Clinic to bytes and bytearray. + Patch by Tal Einat. -- Issue #21499: Ignore __builtins__ in several test_importlib.test_api tests. +- Issue #22082: Clear interned strings in slotdefs. -- Issue #20879: Delay the initialization of encoding and decoding tables for - base32, ascii85 and base85 codecs in the base64 module, and delay the - initialization of the unquote_to_bytes() table of the urllib.parse module, to - not waste memory if these modules are not used. +- Upgrade Unicode database to Unicode 7.0.0. -- Issue #19157: Include the broadcast address in the usuable hosts for IPv6 - in ipaddress. +- Issue #21897: Fix a crash with the f_locals attribute with closure + variables when frame.clear() has been called. -- Issue #11599: When an external command (e.g. compiler) fails, distutils now - prints out the whole command line (instead of just the command name) if the - environment variable DISTUTILS_DEBUG is set. +- Issue #21205: Add a new ``__qualname__`` attribute to generator, the + qualified name, and use it in the representation of a generator + (``repr(gen)``). The default name of the generator (``__name__`` attribute) + is now get from the function instead of the code. Use ``gen.gi_code.co_name`` + to get the name of the code. -- Issue #4931: distutils should not produce unhelpful "error: None" messages - anymore. distutils.util.grok_environment_error is kept but doc-deprecated. +- Issue #21669: With the aid of heuristics in SyntaxError.__init__, the + parser now attempts to generate more meaningful (or at least more search + engine friendly) error messages when "exec" and "print" are used as + statements. -- Issue #20875: Prevent possible gzip "'read' is not defined" NameError. - Patch by Claudiu Popa. +- Issue #21642: In the conditional if-else expression, allow an integer written + with no space between itself and the ``else`` keyword (e.g. ``True if 42else + False``) to be valid syntax. -- Issue #11558: ``email.message.Message.attach`` now returns a more - useful error message if ``attach`` is called on a message for which - ``is_multipart`` is False. +- Issue #21523: Fix over-pessimistic computation of the stack effect of + some opcodes in the compiler. This also fixes a quadratic compilation + time issue noticeable when compiling code with a large number of "and" + and "or" operators. -- Issue #20283: RE pattern methods now accept the string keyword parameters - as documented. The pattern and source keyword parameters are left as - deprecated aliases. +- Issue #21418: Fix a crash in the builtin function super() when called without + argument and without current frame (ex: embedded Python). -- Issue #20778: Fix modulefinder to work with bytecode-only modules. +- Issue #21425: Fix flushing of standard streams in the interactive + interpreter. -- Issue #20791: copy.copy() now doesn't make a copy when the input is - a bytes object. Initial patch by Peter Otten. +- Issue #21435: In rare cases, when running finalizers on objects in cyclic + trash a bad pointer dereference could occur due to a subtle flaw in + internal iteration logic. -- Issue #19748: On AIX, time.mktime() now raises an OverflowError for year - outsize range [1902; 2037]. +- Issue #21377: PyBytes_Concat() now tries to concatenate in-place when the + first argument has a reference count of 1. Patch by Nikolaus Rath. -- Issue #20816: Fix inspect.getcallargs() to raise correct TypeError for - missing keyword-only arguments. Patch by Jeremiah Lowin. +- Issue #20355: -W command line options now have higher priority than the + PYTHONWARNINGS environment variable. Patch by Arfrever. -- Issue #20817: Fix inspect.getcallargs() to fail correctly if more - than 3 arguments are missing. Patch by Jeremiah Lowin. +- Issue #21274: Define PATH_MAX for GNU/Hurd in Python/pythonrun.c. -- Issue #6676: Ensure a meaningful exception is raised when attempting - to parse more than one XML document per pyexpat xmlparser instance. - (Original patches by Hirokazu Yamamoto and Amaury Forgeot d'Arc, with - suggested wording by David Gutteridge) +- Issue #20904: Support setting FPU precision on m68k. -- Issue #21117: Fix inspect.signature to better support functools.partial. - Due to the specifics of functools.partial implementation, - positional-or-keyword arguments passed as keyword arguments become - keyword-only. +- Issue #21209: Fix sending tuples to custom generator objects with the yield + from syntax. -- Issue #21209: Fix asyncio.tasks.CoroWrapper to workaround a bug - in yield-from implementation in CPythons prior to 3.4.1. +- Issue #21193: pow(a, b, c) now raises ValueError rather than TypeError when b + is negative. Patch by Josh Rosenberg. -- asyncio: Add gi_{frame,running,code} properties to CoroWrapper - (upstream issue #163). +- PEP 465 and Issue #21176: Add the '@' operator for matrix multiplication. -- Issue #21311: Avoid exception in _osx_support with non-standard compiler - configurations. Patch by John Szakmeister. +- Issue #21134: Fix segfault when str is called on an uninitialized + UnicodeEncodeError, UnicodeDecodeError, or UnicodeTranslateError object. -- Issue #11571: Ensure that the turtle window becomes the topmost window - when launched on OS X. +- Issue #19537: Fix PyUnicode_DATA() alignment under m68k. Patch by + Andreas Schwab. -Extension Modules ------------------ +- Issue #20929: Add a type cast to avoid shifting a negative number. -- Issue #21276: posixmodule: Don't define USE_XATTRS on KFreeBSD and the Hurd. +- Issue #20731: Properly position in source code files even if they + are opened in text mode. Patch by Serhiy Storchaka. -- Issue #21226: Set up modules properly in PyImport_ExecCodeModuleObject - (and friends). +- Issue #20637: Key-sharing now also works for instance dictionaries of + subclasses. Patch by Peter Ingebretson. -IDLE ----- +- Issue #8297: Attributes missing from modules now include the module name + in the error text. Original patch by ysj.ray. -- Issue #21139: Change default paragraph width to 72, the PEP 8 recommendation. +- Issue #19995: %c, %o, %x, and %X now raise TypeError on non-integer input. -- Issue #21284: Paragraph reformat test passes after user changes reformat width. +- Issue #19655: The ASDL parser - used by the build process to generate code for + managing the Python AST in C - was rewritten. The new parser is self contained + and does not require to carry long the spark.py parser-generator library; + spark.py was removed from the source base. -- Issue #17654: Ensure IDLE menus are customized properly on OS X for - non-framework builds and for all variants of Tk. +- Issue #12546: Allow \x00 to be used as a fill character when using str, int, + float, and complex __format__ methods. -Build ------ +- Issue #20480: Add ipaddress.reverse_pointer. Patch by Leon Weber. -- The Windows build now includes OpenSSL 1.0.1g +- Issue #13598: Modify string.Formatter to support auto-numbering of + replacement fields. It now matches the behavior of str.format() in + this regard. Patches by Phil Elson and Ramchandra Apte. -- Issue #21285: Refactor and fix curses configure check to always search - in a ncursesw directory. +- Issue #8931: Make alternate formatting ('#') for type 'c' raise an + exception. In versions prior to 3.5, '#' with 'c' had no effect. Now + specifying it is an error. Patch by Torsten Landschoff. -- Issue #15234: For BerkelyDB and Sqlite, only add the found library and - include directories if they aren't already being searched. This avoids - an explicit runtime library dependency. +- Issue #23165: Perform overflow checks before allocating memory in the + _Py_char2wchar function. -- Issue #20644: OS X installer build support for documentation build changes - in 3.4.1: assume externally supplied sphinx-build is available in /usr/bin. +Library +------- -C API ------ +- Issue #23399: pyvenv creates relative symlinks where possible. -- Issue #20942: PyImport_ImportFrozenModuleObject() no longer sets __file__ to - match what importlib does; this affects _frozen_importlib as well as any - module loaded using imp.init_frozen(). +- Issue #20289: cgi.FieldStorage() now supports the context management + protocol. -Documentation -------------- +- Issue #13128: Print response headers for CONNECT requests when debuglevel + > 0. Patch by Demian Brecht. -- Issue #17386: Expanded functionality of the ``Doc/make.bat`` script to make - it much more comparable to ``Doc/Makefile``. +- Issue #15381: Optimized io.BytesIO to make less allocations and copyings. -- Issue #21043: Remove the recommendation for specific CA organizations and to - mention the ability to load the OS certificates. +- Issue #22818: Splitting on a pattern that could match an empty string now + raises a warning. Patterns that can only match empty strings are now + rejected. -- Issue #20765: Add missing documentation for PurePath.with_name() and - PurePath.with_suffix(). +- Issue #23099: Closing io.BytesIO with exported buffer is rejected now to + prevent corrupting exported buffer. -- Issue #19407: New package installation and distribution guides based on - the Python Packaging Authority tools. Existing guides have been retained - as legacy links from the distutils docs, as they still contain some - required reference material for tool developers that isn't recorded - anywhere else. +- Issue #23326: Removed __ne__ implementations. Since fixing default __ne__ + implementation in issue #21408 they are redundant. -- Issue #19697: Document cases where __main__.__spec__ is None. +- Issue #23363: Fix possible overflow in itertools.permutations. -Tests ------ +- Issue #23364: Fix possible overflow in itertools.product. -- Issue #18604: Consolidated checks for GUI availability. All platforms now - at least check whether Tk can be instantiated when the GUI resource is - requested. +- Issue #23366: Fixed possible integer overflow in itertools.combinations. -- Issue #21275: Fix a socket test on KFreeBSD. +- Issue #23369: Fixed possible integer overflow in + _json.encode_basestring_ascii. -- Issue #21223: Pass test_site/test_startup_imports when some of the extensions - are built as builtins. +- Issue #23353: Fix the exception handling of generators in + PyEval_EvalFrameEx(). At entry, save or swap the exception state even if + PyEval_EvalFrameEx() is called with throwflag=0. At exit, the exception state + is now always restored or swapped, not only if why is WHY_YIELD or + WHY_RETURN. Patch co-written with Antoine Pitrou. -- Issue #20635: Added tests for Tk geometry managers. +- Issue #14099: Restored support of writing ZIP files to tellable but + non-seekable streams. -- Add test case for freeze. +- Issue #14099: Writing to ZipFile and reading multiple ZipExtFiles is + threadsafe now. -- Issue #20743: Fix a reference leak in test_tcl. +- Issue #19361: JSON decoder now raises JSONDecodeError instead of ValueError. -- Issue #21097: Move test_namespace_pkgs into test_importlib. +- Issue #18518: timeit now rejects statements which can't be compiled outside + a function or a loop (e.g. "return" or "break"). -- Issue #20939: Avoid various network test failures due to new - redirect of http://www.python.org/ to https://www.python.org: - use http://www.example.com instead. +- Issue #23094: Fixed readline with frames in Python implementation of pickle. -- Issue #20668: asyncio tests no longer rely on tests.txt file. - (Patch by Vajrasky Kok) +- Issue #23268: Fixed bugs in the comparison of ipaddress classes. -- Issue #21093: Prevent failures of ctypes test_macholib on OS X if a - copy of libz exists in $HOME/lib or /usr/local/lib. +- Issue #21408: Removed incorrect implementations of __ne__() which didn't + returned NotImplemented if __eq__() returned NotImplemented. The default + __ne__() now works correctly. -Tools/Demos ------------ +- Issue #19996: :class:`email.feedparser.FeedParser` now handles (malformed) + headers with no key rather than assuming the body has started. -- Add support for ``yield from`` to 2to3. +- Issue #20188: Support Application-Layer Protocol Negotiation (ALPN) in the ssl + module. -- Add support for the PEP 465 matrix multiplication operator to 2to3. +- Issue #23133: Pickling of ipaddress objects now produces more compact and + portable representation. -- Issue #16047: Fix module exception list and __file__ handling in freeze. - Patch by Meador Inge. +- Issue #23248: Update ssl error codes from latest OpenSSL git master. -- Issue #11824: Consider ABI tags in freeze. Patch by Meador Inge. +- Issue #23266: Much faster implementation of ipaddress.collapse_addresses() + when there are many non-consecutive addresses. -- Issue #20535: PYTHONWARNING no longer affects the run_tests.py script. - Patch by Arfrever Frehtes Taifersar Arahesis. +- Issue #23098: 64-bit dev_t is now supported in the os module. +- Issue #21817: When an exception is raised in a task submitted to a + ProcessPoolExecutor, the remote traceback is now displayed in the + parent process. Patch by Claudiu Popa. -What's New in Python 3.4.0? -=========================== +- Issue #15955: Add an option to limit output size when decompressing LZMA + data. Patch by Nikolaus Rath and Martin Panter. -Release date: 2014-03-16 +- Issue #23250: In the http.cookies module, capitalize "HttpOnly" and "Secure" + as they are written in the standard. -Library -------- +- Issue #23063: In the disutils' check command, fix parsing of reST with code or + code-block directives. -- Issue #20939: Fix test_geturl failure in test_urllibnet due to - new redirect of http://www.python.org/ to https://www.python.org. +- Issue #23209, #23225: selectors.BaseSelector.get_key() now raises a + RuntimeError if the selector is closed. And selectors.BaseSelector.close() + now clears its internal reference to the selector mapping to break a + reference cycle. Initial patch written by Martin Richard. -Documentation -------------- +- Issue #17911: Provide a way to seed the linecache for a PEP-302 module + without actually loading the code. -- Merge in all documentation changes since branching 3.4.0rc1. +- Issue #17911: Provide a new object API for traceback, including the ability + to not lookup lines at all until the traceback is actually rendered, without + any trace of the original objects being kept alive. +- Issue #19777: Provide a home() classmethod on Path objects. Contributed + by Victor Salgado and Mayank Tripathi. -What's New in Python 3.4.0 release candidate 3? -=============================================== +- Issue #23206: Make ``json.dumps(..., ensure_ascii=False)`` as fast as the + default case of ``ensure_ascii=True``. Patch by Naoki Inada. -Release date: 2014-03-09 +- Issue #23185: Add math.inf and math.nan constants. -Core and Builtins ------------------ +- Issue #23186: Add ssl.SSLObject.shared_ciphers() and + ssl.SSLSocket.shared_ciphers() to fetch the client's list ciphers sent at + handshake. -- Issue #20786: Fix signatures for dict.__delitem__ and - property.__delete__ builtins. +- Issue #23143: Remove compatibility with OpenSSLs older than 0.9.8. -Library -------- +- Issue #23132: Improve performance and introspection support of comparison + methods created by functool.total_ordering. -- Issue #20839: Don't trigger a DeprecationWarning in the still supported - pkgutil.get_loader() API when __loader__ isn't set on a module (nor - when pkgutil.find_loader() is called directly). +- Issue #19776: Add a expanduser() method on Path objects. -Build ------ +- Issue #23112: Fix SimpleHTTPServer to correctly carry the query string and + fragment when it redirects to add a trailing slash. -- Issue #14512: Launch pydoc -b instead of pydocgui.pyw on Windows. +- Issue #21793: Added http.HTTPStatus enums (i.e. HTTPStatus.OK, + HTTPStatus.NOT_FOUND). Patch by Demian Brecht. -- Issue #20748: Uninstalling pip does not leave behind the pyc of - the uninstaller anymore. +- Issue #23093: In the io, module allow more operations to work on detached + streams. -- Issue #20568: The Windows installer now installs the unversioned ``pip`` - command in addition to the versioned ``pip3`` and ``pip3.4`` commands. +- Issue #23111: In the ftplib, make ssl.PROTOCOL_SSLv23 the default protocol + version. -- Issue #20757: The ensurepip helper for the Windows uninstaller now skips - uninstalling pip (rather than failing) if the user has updated pip to a - different version from the one bundled with ensurepip. +- Issue #22585: On OpenBSD 5.6 and newer, os.urandom() now calls getentropy(), + instead of reading /dev/urandom, to get pseudo-random bytes. -- Issue #20465: Update OS X and Windows installer builds to use - SQLite 3.8.3.1. +- Issue #19104: pprint now produces evaluable output for wrapped strings. +- Issue #23071: Added missing names to codecs.__all__. Patch by Martin Panter. -What's New in Python 3.4.0 release candidate 2? -=============================================== +- Issue #22783: Pickling now uses the NEWOBJ opcode instead of the NEWOBJ_EX + opcode if possible. -Release date: 2014-02-23 +- Issue #15513: Added a __sizeof__ implementation for pickle classes. -Core and Builtins ------------------ +- Issue #19858: pickletools.optimize() now aware of the MEMOIZE opcode, can + produce more compact result and no longer produces invalid output if input + data contains MEMOIZE opcodes together with PUT or BINPUT opcodes. -- Issue #20625: Parameter names in __annotations__ were not mangled properly. - Discovered by Jonas Wielicki, patch by Yury Selivanov. +- Issue #22095: Fixed HTTPConnection.set_tunnel with default port. The port + value in the host header was set to "None". Patch by Demian Brecht. -- Issue #20261: In pickle, lookup __getnewargs__ and __getnewargs_ex__ on the - type of the object. - -- Issue #20619: Give the AST nodes of keyword-only arguments a column and line - number. +- Issue #23016: A warning no longer produces an AttributeError when the program + is run with pythonw.exe. -- Issue #20526: Revert changes of issue #19466 which introduces a regression: - don't clear anymore the state of Python threads early during the Python - shutdown. +- Issue #21775: shutil.copytree(): fix crash when copying to VFAT. An exception + handler assumed that that OSError objects always have a 'winerror' attribute. + That is not the case, so the exception handler itself raised AttributeError + when run on Linux (and, presumably, any other non-Windows OS). + Patch by Greg Ward. -Library -------- +- Issue #1218234: Fix inspect.getsource() to load updated source of + reloaded module. Initial patch by Berker Peksag. -- Issue #20710: The pydoc summary line no longer displays the "self" parameter - for bound methods. +- Issue #21740: Support wrapped callables in doctest. Patch by Claudiu Popa. -- Issue #20566: Change asyncio.as_completed() to use a Queue, to - avoid O(N**2) behavior. +- Issue #23009: Make sure selectors.EpollSelecrtor.select() works when no + FD is registered. -- Issue #20704: Implement new debug API in asyncio. Add new methods - BaseEventLoop.set_debug() and BaseEventLoop.get_debug(). - Add support for setting 'asyncio.tasks._DEBUG' variable with - 'PYTHONASYNCIODEBUG' environment variable. +- Issue #22959: In the constructor of http.client.HTTPSConnection, prefer the + context's check_hostname attribute over the *check_hostname* parameter. -- asyncio: Refactoring and fixes: BaseEventLoop.sock_connect() raises an - error if the address is not resolved; use __slots__ in Handle and - TimerHandle; as_completed() and wait() raise TypeError if the passed - list of Futures is a single Future; call_soon() and other 'call_*()' - functions raise TypeError if the passed callback is a coroutine - function; _ProactorBasePipeTransport uses _FlowControlMixin; - WriteTransport.set_write_buffer_size() calls _maybe_pause_protocol() - to consider pausing receiving if the watermark limits have changed; - fix _check_resolved_address() for IPv6 address; and other minor - improvements, along with multiple documentation updates. +- Issue #22696: Add function :func:`sys.is_finalizing` to know about + interpreter shutdown. -- Issue #20684: Fix inspect.getfullargspec() to not to follow __wrapped__ - chains. Make its behaviour consistent with bound methods first argument. - Patch by Nick Coghlan and Yury Selivanov. +- Issue #16043: Add a default limit for the amount of data xmlrpclib.gzip_decode + will return. This resolves CVE-2013-1753. -- Issue #20681: Add new error handling API in asyncio. New APIs: - loop.set_exception_handler(), loop.default_exception_handler(), and - loop.call_exception_handler(). +- Issue #14099: ZipFile.open() no longer reopen the underlying file. Objects + returned by ZipFile.open() can now operate independently of the ZipFile even + if the ZipFile was created by passing in a file-like object as the first + argument to the constructor. -- Issue #20673: Implement support for UNIX Domain Sockets in asyncio. - New APIs: loop.create_unix_connection(), loop.create_unix_server(), - streams.open_unix_connection(), and streams.start_unix_server(). +- Issue #22966: Fix __pycache__ pyc file name clobber when pyc_compile is + asked to compile a source file containing multiple dots in the source file + name. -- Issue #20616: Add a format() method to tracemalloc.Traceback. +- Issue #21971: Update turtledemo doc and add module to the index. -- Issue #19744: the ensurepip installation step now just prints a warning to - stderr rather than failing outright if SSL/TLS is unavailable. This allows - local installation of POSIX builds without SSL/TLS support. +- Issue #21032. Fixed socket leak if HTTPConnection.getresponse() fails. + Original patch by Martin Panter. -- Issue #20594: Avoid name clash with the libc function posix_close. +- Issue #22407: Deprecated the use of re.LOCALE flag with str patterns or + re.ASCII. It was newer worked. -Build ------ +- Issue #22902: The "ip" command is now used on Linux to determine MAC address + in uuid.getnode(). Pach by Bruno Cauet. -- Issue #20641: Run MSI custom actions (pip installation, pyc compilation) - with the NoImpersonate flag, to support elevated execution (UAC). +- Issue #22960: Add a context argument to xmlrpclib.ServerProxy constructor. -- Issue #20221: Removed conflicting (or circular) hypot definition when - compiled with VS 2010 or above. Initial patch by Tabrez Mohammed. +- Issue #22389: Add contextlib.redirect_stderr(). -- Issue #20609: Restored the ability to build 64-bit Windows binaries on - 32-bit Windows, which was broken by the change in issue #19788. +- Issue #21356: Make ssl.RAND_egd() optional to support LibreSSL. The + availability of the function is checked during the compilation. Patch written + by Bernard Spil. +- Issue #22915: SAX parser now supports files opened with file descriptor or + bytes path. -What's New in Python 3.4.0 release candidate 1? -=============================================== +- Issue #22609: Constructors and update methods of mapping classes in the + collections module now accept the self keyword argument. -Release date: 2014-02-10 +- Issue #22940: Add readline.append_history_file. -Core and Builtins ------------------ +- Issue #19676: Added the "namereplace" error handler. -- Issue #19255: The builtins module is restored to initial value before - cleaning other modules. The sys and builtins modules are cleaned last. +- Issue #22788: Add *context* parameter to logging.handlers.HTTPHandler. -- Issue #20588: Make Python-ast.c C89 compliant. +- Issue #22921: Allow SSLContext to take the *hostname* parameter even if + OpenSSL doesn't support SNI. -- Issue #20437: Fixed 22 potential bugs when deleting objects references. +- Issue #22894: TestCase.subTest() would cause the test suite to be stopped + when in failfast mode, even in the absence of failures. -- Issue #20500: Displaying an exception at interpreter shutdown no longer - risks triggering an assertion failure in PyObject_Str. +- Issue #22796: HTTP cookie parsing is now stricter, in order to protect + against potential injection attacks. -- Issue #20538: UTF-7 incremental decoder produced inconsistent string when - input was truncated in BASE64 section. +- Issue #22370: Windows detection in pathlib is now more robust. -- Issue #20404: io.TextIOWrapper (and hence the open() builtin) now uses the - internal codec marking system added for issue #19619 to throw LookupError - for known non-text encodings at stream construction time. The existing - output type checks remain in place to deal with unmarked third party - codecs. +- Issue #22841: Reject coroutines in asyncio add_signal_handler(). + Patch by Ludovic.Gasc. -- Issue #17162: Add PyType_GetSlot. +- Issue #19494: Added urllib.request.HTTPBasicPriorAuthHandler. Patch by + Matej Cepl. -- Issue #20162: Fix an alignment issue in the siphash24() hash function which - caused a crash on PowerPC 64-bit (ppc64). +- Issue #22578: Added attributes to the re.error class. -Library -------- +- Issue #22849: Fix possible double free in the io.TextIOWrapper constructor. -- Issue #20530: The signatures for slot builtins have been updated - to reflect the fact that they only accept positional-only arguments. +- Issue #12728: Different Unicode characters having the same uppercase but + different lowercase are now matched in case-insensitive regular expressions. -- Issue #20517: Functions in the os module that accept two filenames - now register both filenames in the exception on failure. +- Issue #22821: Fixed fcntl() with integer argument on 64-bit big-endian + platforms. -- Issue #20563: The ipaddress module API is now considered stable. +- Issue #21650: Add an `--sort-keys` option to json.tool CLI. -- Issue #14983: email.generator now always adds a line end after each MIME - boundary marker, instead of doing so only when there is an epilogue. This - fixes an RFC compliance bug and solves an issue with signed MIME parts. +- Issue #22824: Updated reprlib output format for sets to use set literals. + Patch contributed by Berker Peksag. -- Issue #20540: Fix a performance regression (vs. Python 3.2) when layering - a multiprocessing Connection over a TCP socket. For small payloads, Nagle's - algorithm would introduce idle delays before the entire transmission of a - message. +- Issue #22824: Updated reprlib output format for arrays to display empty + arrays without an unnecessary empty list. Suggested by Serhiy Storchaka. -- Issue #16983: the new email header parsing code will now decode encoded words - that are (incorrectly) surrounded by quotes, and register a defect. +- Issue #22406: Fixed the uu_codec codec incorrectly ported to 3.x. + Based on patch by Martin Panter. -- Issue #19772: email.generator no longer mutates the message object when - doing a down-transform from 8bit to 7bit CTEs. +- Issue #17293: uuid.getnode() now determines MAC address on AIX using netstat. + Based on patch by Aivars Kalvāns. -- Issue #20536: the statistics module now correctly handle Decimal instances - with positive exponents +- Issue #22769: Fixed ttk.Treeview.tag_has() when called without arguments. -- Issue #18805: the netmask/hostmask parsing in ipaddress now more reliably - filters out illegal values and correctly allows any valid prefix length. +- Issue #22417: Verify certificates by default in httplib (PEP 476). -- Issue #20481: For at least Python 3.4, the statistics module will require - that all inputs for a single operation be of a single consistent type, or - else a mixed of ints and a single other consistent type. This avoids - some interoperability issues that arose with the previous approach of - coercing to a suitable common type. +- Issue #22775: Fixed unpickling of http.cookies.SimpleCookie with protocol 2 + and above. Patch by Tim Graham. -- Issue #20478: the statistics module now treats collections.Counter inputs - like any other iterable. +- Issue #22776: Brought excluded code into the scope of a try block in + SysLogHandler.emit(). -- Issue #17369: get_filename was raising an exception if the filename - parameter's RFC2231 encoding was broken in certain ways. This was - a regression relative to python2. +- Issue #22665: Add missing get_terminal_size and SameFileError to + shutil.__all__. -- Issue #20013: Some imap servers disconnect if the current mailbox is - deleted, and imaplib did not handle that case gracefully. Now it - handles the 'bye' correctly. +- Issue #6623: Remove deprecated Netrc class in the ftplib module. Patch by + Matt Chaput. -- Issue #20531: Revert 3.4 version of fix for #19063, and apply the 3.3 - version. That is, do *not* raise an error if unicode is passed to - email.message.Message.set_payload. +- Issue #17381: Fixed handling of case-insensitive ranges in regular + expressions. -- Issue #20476: If a non-compat32 policy is used with any of the email parsers, - EmailMessage is now used as the factory class. The factory class should - really come from the policy; that will get fixed in 3.5. +- Issue #22410: Module level functions in the re module now cache compiled + locale-dependent regular expressions taking into account the locale. -- Issue #19920: TarFile.list() no longer fails when outputs a listing - containing non-encodable characters. Based on patch by Vajrasky Kok. +- Issue #22759: Query methods on pathlib.Path() (exists(), is_dir(), etc.) + now return False when the underlying stat call raises NotADirectoryError. -- Issue #20515: Fix NULL pointer dereference introduced by issue #20368. +- Issue #8876: distutils now falls back to copying files when hard linking + doesn't work. This allows use with special filesystems such as VirtualBox + shared folders. -- Issue #19186: Restore namespacing of expat symbols inside the pyexpat module. +- Issue #22217: Implemented reprs of classes in the zipfile module. -- Issue #20053: ensurepip (and hence venv) are no longer affected by the - settings in the default pip configuration file. +- Issue #22457: Honour load_tests in the start_dir of discovery. -- Issue #20426: When passing the re.DEBUG flag, re.compile() displays the - debug output every time it is called, regardless of the compilation cache. +- Issue #18216: gettext now raises an error when a .mo file has an + unsupported major version number. Patch by Aaron Hill. -- Issue #20368: The null character now correctly passed from Tcl to Python. - Improved error handling in variables-related commands. +- Issue #13918: Provide a locale.delocalize() function which can remove + locale-specific number formatting from a string representing a number, + without then converting it to a specific type. Patch by Cédric Krier. -- Issue #20435: Fix _pyio.StringIO.getvalue() to take into account newline - translation settings. +- Issue #22676: Make the pickling of global objects which don't have a + __module__ attribute less slow. -- tracemalloc: Fix slicing traces and fix slicing a traceback. +- Issue #18853: Fixed ResourceWarning in shlex.__nain__. -- Issue #20354: Fix an alignment issue in the tracemalloc module on 64-bit - platforms. Bug seen on 64-bit Linux when using "make profile-opt". +- Issue #9351: Defaults set with set_defaults on an argparse subparser + are no longer ignored when also set on the parent parser. -- Issue #17159: inspect.signature now accepts duck types of functions, - which adds support for Cython functions. Initial patch by Stefan Behnel. +- Issue #7559: unittest test loading ImportErrors are reported as import errors + with their import exception rather than as attribute errors after the import + has already failed. -- Issue #18801: Fix inspect.classify_class_attrs to correctly classify - object.__new__ and object.__init__. +- Issue #19746: Make it possible to examine the errors from unittest + discovery without executing the test suite. The new `errors` attribute + on TestLoader exposes these non-fatal errors encountered during discovery. -- Fixed cmath.isinf's name in its argument parsing code. +- Issue #21991: Make email.headerregistry's header 'params' attributes + be read-only (MappingProxyType). Previously the dictionary was modifiable + but a new one was created on each access of the attribute. -- Issue #20311, #20452: poll and epoll now round the timeout away from zero, - instead of rounding towards zero, in select and selectors modules: - select.epoll.poll(), selectors.PollSelector.poll() and - selectors.EpollSelector.poll(). For example, a timeout of one microsecond - (1e-6) is now rounded to one millisecondi (1e-3), instead of being rounded to - zero. However, the granularity property and asyncio's resolution feature - were removed again. +- Issue #22638: SSLv3 is now disabled throughout the standard library. + It can still be enabled by instantiating a SSLContext manually. -- asyncio: Some refactoring; various fixes; add write flow control to - unix pipes; Future.set_exception() instantiates the exception - argument if it is a class; improved proactor pipe transport; support - wait_for(f, None); don't log broken/disconnected pipes; use - ValueError instead of assert for forbidden subprocess_{shell,exec} - arguments; added a convenience API for subprocess management; added - StreamReader.at_eof(); properly handle duplicate coroutines/futures - in gather(), wait(), as_completed(); use a bytearray for buffering - in StreamReader; and more. +- Issue #22641: In asyncio, the default SSL context for client connections + is now created using ssl.create_default_context(), for stronger security. -- Issue #20288: fix handling of invalid numeric charrefs in HTMLParser. +- Issue #17401: Include closefd in io.FileIO repr. -- Issue #20424: Python implementation of io.StringIO now supports lone surrogates. +- Issue #21338: Add silent mode for compileall. quiet parameters of + compile_{dir, file, path} functions now have a multilevel value. Also, + -q option of the CLI now have a multilevel value. Patch by Thomas Kluyver. -- Issue #20308: inspect.signature now works on classes without user-defined - __init__ or __new__ methods. +- Issue #20152: Convert the array and cmath modules to Argument Clinic. -- Issue #20372: inspect.getfile (and a bunch of other inspect functions that - use it) doesn't crash with unexpected AttributeError on classes defined in C - without __module__. +- Issue #18643: Add socket.socketpair() on Windows. -- Issue #20356: inspect.signature formatting uses '/' to separate - positional-only parameters from others. +- Issue #22435: Fix a file descriptor leak when SocketServer bind fails. -- Issue #20223: inspect.signature now supports methods defined with - functools.partialmethods. +- Issue #13096: Fixed segfault in CTypes POINTER handling of large + values. -- Issue #19456: ntpath.join() now joins relative paths correctly when a drive - is present. +- Issue #11694: Raise ConversionError in xdrlib as documented. Patch + by Filip Gruszczyński and Claudiu Popa. -- Issue #19077: tempfile.TemporaryDirectory cleanup no longer fails when - called during shutdown. Emitting resource warning in __del__ no longer fails. - Original patch by Antoine Pitrou. +- Issue #19380: Optimized parsing of regular expressions. -- Issue #20394: Silence Coverity warning in audioop module. +- Issue #1519638: Now unmatched groups are replaced with empty strings in re.sub() + and re.subn(). -- Issue #20367: Fix behavior of concurrent.futures.as_completed() for - duplicate arguments. Patch by Glenn Langford. +- Issue #18615: sndhdr.what/whathdr now return a namedtuple. -- Issue #8260: The read(), readline() and readlines() methods of - codecs.StreamReader returned incomplete data when were called after - readline() or read(size). Based on patch by Amaury Forgeot d'Arc. +- Issue #22462: Fix pyexpat's creation of a dummy frame to make it + appear in exception tracebacks. -- Issue #20105: the codec exception chaining now correctly sets the - traceback of the original exception as its __traceback__ attribute. +- Issue #21965: Add support for in-memory SSL to the ssl module. Patch + by Geert Jansen. -- Issue #17481: inspect.getfullargspec() now uses inspect.signature() API. +- Issue #21173: Fix len() on a WeakKeyDictionary when .clear() was called + with an iterator alive. -- Issue #15304: concurrent.futures.wait() can block forever even if - Futures have completed. Patch by Glenn Langford. - -- Issue #14455: plistlib: fix serializing integers in the range - of an unsigned long long but outside of the range of signed long long for - binary plist files. +- Issue #11866: Eliminated race condition in the computation of names + for new threads. -IDLE ----- +- Issue #21905: Avoid RuntimeError in pickle.whichmodule() when sys.modules + is mutated while iterating. Patch by Olivier Grisel. -- Issue #20406: Use Python application icons for Idle window title bars. - Patch mostly by Serhiy Storchaka. +- Issue #11271: concurrent.futures.Executor.map() now takes a *chunksize* + argument to allow batching of tasks in child processes and improve + performance of ProcessPoolExecutor. Patch by Dan O'Reilly. -- Update the python.gif icon for the Idle classbrowser and pathbowser - from the old green snake to the new blue and yellow snakes. +- Issue #21883: os.path.join() and os.path.relpath() now raise a TypeError with + more helpful error message for unsupported or mismatched types of arguments. -- Issue #17721: Remove non-functional configuration dialog help button until we - make it actually gives some help when clicked. Patch by Guilherme Simões. +- Issue #22219: The zipfile module CLI now adds entries for directories + (including empty directories) in ZIP file. -Tests ------ +- Issue #22449: In the ssl.SSLContext.load_default_certs, consult the + environmental variables SSL_CERT_DIR and SSL_CERT_FILE on Windows. -- Issue #20532: Tests which use _testcapi now are marked as CPython only. +- Issue #22508: The email.__version__ variable has been removed; the email + code is no longer shipped separately from the stdlib, and __version__ + hasn't been updated in several releases. -- Issue #19920: Added tests for TarFile.list(). Based on patch by Vajrasky Kok. +- Issue #20076: Added non derived UTF-8 aliases to locale aliases table. -- Issue #19990: Added tests for the imghdr module. Based on patch by - Claudiu Popa. +- Issue #20079: Added locales supported in glibc 2.18 to locale alias table. -- Issue #20474: Fix test_socket "unexpected success" failures on OS X 10.7+. +- Issue #20218: Added convenience methods read_text/write_text and read_bytes/ + write_bytes to pathlib.Path objects. -Tools/Demos ------------ +- Issue #22437: Number of capturing groups in regular expression is no longer + limited by 100. -- Issue #20530: Argument Clinic's signature format has been revised again. - The new syntax is highly human readable while still preventing false - positives. The syntax also extends Python syntax to denote "self" and - positional-only parameters, allowing inspect.Signature objects to be - totally accurate for all supported builtins in Python 3.4. +- Issue #17442: InteractiveInterpreter now displays the full chained traceback + in its showtraceback method, to match the built in interactive interpreter. -- Issue #20456: Argument Clinic now observes the C preprocessor conditional - compilation statements of the C files it parses. When a Clinic block is - inside a conditional code, it adjusts its output to match, including - automatically generating an empty methoddef macro. +- Issue #23392: Added tests for marshal C API that works with FILE*. -- Issue #20456: Cloned functions in Argument Clinic now use the correct - name, not the name of the function they were cloned from, for text - strings inside generated code. -- Issue #20456: Fixed Argument Clinic's test suite and "--converters" feature. +- Issue #10510: distutils register and upload methods now use HTML standards + compliant CRLF line endings. -- Issue #20456: Argument Clinic now allows specifying different names - for a parameter in Python and C, using "as" on the parameter line. +- Issue #9850: Fixed macpath.join() for empty first component. Patch by + Oleg Oshmyan. -- Issue #20326: Argument Clinic now uses a simple, unique signature to - annotate text signatures in docstrings, resulting in fewer false - positives. "self" parameters are also explicitly marked, allowing - inspect.Signature() to authoritatively detect (and skip) said parameters. +- Issue #5309: distutils' build and build_ext commands now accept a ``-j`` + option to enable parallel building of extension modules. -- Issue #20326: Argument Clinic now generates separate checksums for the - input and output sections of the block, allowing external tools to verify - that the input has not changed (and thus the output is not out-of-date). +- Issue #22448: Improve canceled timer handles cleanup to prevent + unbound memory usage. Patch by Joshua Moore-Oliva. -Build ------ +- Issue #22427: TemporaryDirectory no longer attempts to clean up twice when + used in the with statement in generator. -- Issue #20465: Update SQLite shipped with OS X installer to 3.8.3. +- Issue #22362: Forbidden ambiguous octal escapes out of range 0-0o377 in + regular expressions. -C-API ------ +- Issue #20912: Now directories added to ZIP file have correct Unix and MS-DOS + directory attributes. -- Issue #20517: Added new functions allowing OSError exceptions to reference - two filenames instead of one: PyErr_SetFromErrnoWithFilenameObjects() and - PyErr_SetExcFromWindowsErrWithFilenameObjects(). +- Issue #21866: ZipFile.close() no longer writes ZIP64 central directory + records if allowZip64 is false. -Documentation -------------- +- Issue #22278: Fix urljoin problem with relative urls, a regression observed + after changes to issue22118 were submitted. -- Issue #20488: Change wording to say importlib is *the* implementation of - import instead of just *an* implementation. +- Issue #22415: Fixed debugging output of the GROUPREF_EXISTS opcode in the re + module. Removed trailing spaces in debugging output. -- Issue #6386: Clarify in the tutorial that specifying a symlink to execute - means the directory containing the executed script and not the symlink is - added to sys.path. +- Issue #22423: Unhandled exception in thread no longer causes unhandled + AttributeError when sys.stderr is None. +- Issue #21332: Ensure that ``bufsize=1`` in subprocess.Popen() selects + line buffering, rather than block buffering. Patch by Akira Li. -What's New in Python 3.4.0 Beta 3? -================================== +- Issue #21091: Fix API bug: email.message.EmailMessage.is_attachment is now + a method. -Release date: 2014-01-26 +- Issue #21079: Fix email.message.EmailMessage.is_attachment to return the + correct result when the header has parameters as well as a value. -Core and Builtins ------------------ +- Issue #22247: Add NNTPError to nntplib.__all__. -- Issue #20189: Four additional builtin types (PyTypeObject, - PyMethodDescr_Type, _PyMethodWrapper_Type, and PyWrapperDescr_Type) - have been modified to provide introspection information for builtins. +- Issue #22366: urllib.request.urlopen will accept a context object + (SSLContext) as an argument which will then used be for HTTPS connection. + Patch by Alex Gaynor. -- Issue #17825: Cursor "^" is correctly positioned for SyntaxError and - IndentationError. +- Issue #4180: The warnings registries are now reset when the filters + are modified. -- Issue #2382: SyntaxError cursor "^" is now written at correct position in most - cases when multibyte characters are in line (before "^"). This still not - works correctly with wide East Asian characters. +- Issue #22419: Limit the length of incoming HTTP request in wsgiref server to + 65536 bytes and send a 414 error code for higher lengths. Patch contributed + by Devin Cook. -- Issue #18960: The first line of Python script could be executed twice when - the source encoding was specified on the second line. Now the source encoding - declaration on the second line isn't effective if the first line contains - anything except a comment. 'python -x' works now again with files with the - source encoding declarations, and can be used to make Python batch files - on Windows. +- Lax cookie parsing in http.cookies could be a security issue when combined + with non-standard cookie handling in some Web browsers. Reported by + Sergey Bobrov. -Library -------- +- Issue #20537: logging methods now accept an exception instance as well as a + Boolean value or exception tuple. Thanks to Yury Selivanov for the patch. -- asyncio: Various improvements and small changes not all covered by - issues listed below. E.g. wait_for() now cancels the inner task if - the timeout occcurs; tweaked the set of exported symbols; renamed - Empty/Full to QueueEmpty/QueueFull; "with (yield from lock)" now - uses a separate context manager; readexactly() raises if not enough - data was read; PTY support tweaks. +- Issue #22384: An exception in Tkinter callback no longer crashes the program + when it is run with pythonw.exe. -- Issue #20311: asyncio: Add a granularity attribute to BaseEventLoop: maximum - between the resolution of the BaseEventLoop.time() method and the resolution - of the selector. The granuarility is used in the scheduler to round time and - deadline. +- Issue #22168: Prevent turtle AttributeError with non-default Canvas on OS X. -- Issue #20311: selectors: Add a resolution attribute to BaseSelector. +- Issue #21147: sqlite3 now raises an exception if the request contains a null + character instead of truncate it. Based on patch by Victor Stinner. -- Issue #20189: unittest.mock now no longer assumes that any object for - which it could get an inspect.Signature is a callable written in Python. - Fix courtesy of Michael Foord. +- Issue #13968: The glob module now supports recursive search in + subdirectories using the "**" pattern. -- Issue #20317: ExitStack.__exit__ could create a self-referential loop if an - exception raised by a cleanup operation already had its context set - correctly (for example, by the @contextmanager decorator). The infinite - loop this caused is now avoided by checking if the expected context is - already set before trying to fix it. +- Issue #21951: Fixed a crash in Tkinter on AIX when called Tcl command with + empty string or tuple argument. -- Issue #20374: Fix build with GNU readline >= 6.3. +- Issue #21951: Tkinter now most likely raises MemoryError instead of crash + if the memory allocation fails. -- Issue #20262: Warnings are raised now when duplicate names are added in the - ZIP file or too long ZIP file comment is truncated. +- Issue #22338: Fix a crash in the json module on memory allocation failure. -- Issue #20165: The unittest module no longer considers tests marked with - @expectedFailure successful if they pass. +- Issue #12410: imaplib.IMAP4 now supports the context management protocol. + Original patch by Tarek Ziadé. -- Issue #18574: Added missing newline in 100-Continue reply from - http.server.BaseHTTPRequestHandler. Patch by Nikolaus Rath. +- Issue #21270: We now override tuple methods in mock.call objects so that + they can be used as normal call attributes. -- Issue #20270: urllib.urlparse now supports empty ports. +- Issue #16662: load_tests() is now unconditionally run when it is present in + a package's __init__.py. TestLoader.loadTestsFromModule() still accepts + use_load_tests, but it is deprecated and ignored. A new keyword-only + attribute `pattern` is added and documented. Patch given by Robert Collins, + tweaked by Barry Warsaw. -- Issue #20243: TarFile no longer raise ReadError when opened in write mode. +- Issue #22226: First letter no longer is stripped from the "status" key in + the result of Treeview.heading(). -- Issue #20238: TarFile opened with external fileobj and "w:gz" mode didn't - write complete output on close. +- Issue #19524: Fixed resource leak in the HTTP connection when an invalid + response is received. Patch by Martin Panter. -- Issue #20245: The open functions in the tarfile module now correctly handle - empty mode. +- Issue #20421: Add a .version() method to SSL sockets exposing the actual + protocol version in use. -- Issue #20242: Fixed basicConfig() format strings for the alternative - formatting styles. Thanks to kespindler for the bug report and patch. +- Issue #19546: configparser exceptions no longer expose implementation details. + Chained KeyErrors are removed, which leads to cleaner tracebacks. Patch by + Claudiu Popa. -- Issue #20246: Fix buffer overflow in socket.recvfrom_into. +- Issue #22051: turtledemo no longer reloads examples to re-run them. + Initialization of variables and gui setup should be done in main(), + which is called each time a demo is run, but not on import. -- Issues #20206 and #5803: Fix edge case in email.quoprimime.encode where it - truncated lines ending in a character needing encoding but no newline by - using a more efficient algorithm that doesn't have the bug. +- Issue #21933: Turtledemo users can change the code font size with a menu + selection or control(command) '-' or '+' or control-mousewheel. + Original patch by Lita Cho. -- Issue #19082: Working xmlrpc.server and xmlrpc.client examples. Both in - modules and in documentation. Initial patch contributed by Vajrasky Kok. +- Issue #21597: The separator between the turtledemo text pane and the drawing + canvas can now be grabbed and dragged with a mouse. The code text pane can + be widened to easily view or copy the full width of the text. The canvas + can be widened on small screens. Original patches by Jan Kanis and Lita Cho. -- Issue #20138: The wsgiref.application_uri() and wsgiref.request_uri() - functions now conform to PEP 3333 when handle non-ASCII URLs. +- Issue #18132: Turtledemo buttons no longer disappear when the window is + shrunk. Original patches by Jan Kanis and Lita Cho. -- Issue #19097: Raise the correct Exception when cgi.FieldStorage is given an - invalid fileobj. +- Issue #22043: time.monotonic() is now always available. + ``threading.Lock.acquire()``, ``threading.RLock.acquire()`` and socket + operations now use a monotonic clock, instead of the system clock, when a + timeout is used. -- Issue #20152: Ported Python/import.c over to Argument Clinic. +- Issue #21527: Add a default number of workers to ThreadPoolExecutor equal + to 5 times the number of CPUs. Patch by Claudiu Popa. -- Issue #13107: argparse and optparse no longer raises an exception when output - a help on environment with too small COLUMNS. Based on patch by - Elazar Gershuni. +- Issue #22216: smtplib now resets its state more completely after a quit. The + most obvious consequence of the previous behavior was a STARTTLS failure + during a connect/starttls/quit/connect/starttls sequence. -- Issue #20207: Always disable SSLv2 except when PROTOCOL_SSLv2 is explicitly - asked for. +- Issue #22098: ctypes' BigEndianStructure and LittleEndianStructure now + define an empty __slots__ so that subclasses don't always get an instance + dict. Patch by Claudiu Popa. -- Issue #18960: The tokenize module now ignore the source encoding declaration - on the second line if the first line contains anything except a comment. +- Issue #22185: Fix an occasional RuntimeError in threading.Condition.wait() + caused by mutation of the waiters queue without holding the lock. Patch + by Doug Zongker. -- Issue #20078: Reading malformed zipfiles no longer hangs with 100% CPU - consumption. +- Issue #22287: On UNIX, _PyTime_gettimeofday() now uses + clock_gettime(CLOCK_REALTIME) if available. As a side effect, Python now + depends on the librt library on Solaris and on Linux (only with glibc older + than 2.17). -- Issue #20113: os.readv() and os.writev() now raise an OSError exception on - error instead of returning -1. +- Issue #22182: Use e.args to unpack exceptions correctly in + distutils.file_util.move_file. Patch by Claudiu Popa. -- Issue #19719: Make importlib.abc.MetaPathFinder.find_module(), - PathEntryFinder.find_loader(), and Loader.load_module() use PEP 451 APIs to - help with backwards-compatibility. +- The webbrowser module now uses subprocess's start_new_session=True rather + than a potentially risky preexec_fn=os.setsid call. -- Issue #20144: inspect.Signature now supports parsing simple symbolic - constants as parameter default values in __text_signature__. +- Issue #22042: signal.set_wakeup_fd(fd) now raises an exception if the file + descriptor is in blocking mode. -- Issue #20072: Fixed multiple errors in tkinter with wantobjects is False. +- Issue #16808: inspect.stack() now returns a named tuple instead of a tuple. + Patch by Daniel Shahaf. -- Issue #20229: Avoid plistlib deprecation warning in platform.mac_ver(). +- Issue #22236: Fixed Tkinter images copying operations in NoDefaultRoot mode. -- Issue #14455: Fix some problems with the new binary plist support in plistlib. +- Issue #2527: Add a *globals* argument to timeit functions, in order to + override the globals namespace in which the timed code is executed. + Patch by Ben Roberts. -IDLE ----- +- Issue #22118: Switch urllib.parse to use RFC 3986 semantics for the + resolution of relative URLs, rather than RFCs 1808 and 2396. + Patch by Demian Brecht. -- Issue #17390: Add Python version to Idle editor window title bar. - Original patches by Edmond Burnett and Kent Johnson. +- Issue #21549: Added the "members" parameter to TarFile.list(). -- Issue #18960: IDLE now ignores the source encoding declaration on the second - line if the first line contains anything except a comment. +- Issue #19628: Allow compileall recursion depth to be specified with a -r + option. -Tests ------ +- Issue #15696: Add a __sizeof__ implementation for mmap objects on Windows. -- Issue #20358: Tests for curses.window.overlay and curses.window.overwrite - no longer specify min{row,col} > max{row,col}. +- Issue #22068: Avoided reference loops with Variables and Fonts in Tkinter. -- Issue #19804: The test_find_mac test in test_uuid is now skipped if the - ifconfig executable is not available. +- Issue #22165: SimpleHTTPRequestHandler now supports undecodable file names. -- Issue #19886: Use better estimated memory requirements for bigmem tests. +- Issue #15381: Optimized line reading in io.BytesIO. -Tools/Demos ------------ +- Issue #8797: Raise HTTPError on failed Basic Authentication immediately. + Initial patch by Sam Bull. -- Issue #20390: Argument Clinic's "file" output preset now defaults to - "{dirname}/clinic/{basename}.h". +- Issue #20729: Restored the use of lazy iterkeys()/itervalues()/iteritems() + in the mailbox module. -- Issue #20390: Argument Clinic's "class" directive syntax has been extended - with two new required arguments: "typedef" and "type_object". +- Issue #21448: Changed FeedParser feed() to avoid O(N**2) behavior when + parsing long line. Original patch by Raymond Hettinger. -- Issue #20390: Argument Clinic: If __new__ or __init__ functions didn't use - kwargs (or args), the PyArg_NoKeywords (or PyArg_NoPositional) calls - generated are only run when the type object is an exact match. +- Issue #22184: The functools LRU Cache decorator factory now gives an earlier + and clearer error message when the user forgets the required parameters. -- Issue #20390: Argument Clinic now fails if you have required parameters after - optional parameters. +- Issue #17923: glob() patterns ending with a slash no longer match non-dirs on + AIX. Based on patch by Delhallt. -- Issue #20390: Argument Clinic converters now have a new template they can - inject code into: "modifiers". Code put there is run in the parsing - function after argument parsing but before the call to the impl. +- Issue #21725: Added support for RFC 6531 (SMTPUTF8) in smtpd. -- Issue #20376: Argument Clinic now escapes backslashes in docstrings. +- Issue #22176: Update the ctypes module's libffi to v3.1. This release + adds support for the Linux AArch64 and POWERPC ELF ABIv2 little endian + architectures. -- Issue #20381: Argument Clinic now sanity checks the default argument when - c_default is also specified, providing a nice failure message for - disallowed values. +- Issue #5411: Added support for the "xztar" format in the shutil module. -- Issue #20189: Argument Clinic now ensures that parser functions for - __new__ are always of type newfunc, the type of the tp_new slot. - Similarly, parser functions for __init__ are now always of type initproc, - the type of tp_init. +- Issue #21121: Don't force 3rd party C extensions to be built with + -Werror=declaration-after-statement. -- Issue #20189: Argument Clinic now suppresses the docstring for __new__ - and __init__ functions if no docstring is provided in the input. +- Issue #21975: Fixed crash when using uninitialized sqlite3.Row (in particular + when unpickling pickled sqlite3.Row). sqlite3.Row is now initialized in the + __new__() method. -- Issue #20189: Argument Clinic now suppresses the "self" parameter in the - impl for @staticmethod functions. +- Issue #20170: Convert posixmodule to use Argument Clinic. -- Issue #20294: Argument Clinic now supports argument parsing for __new__ and - __init__ functions. +- Issue #21539: Add a *exists_ok* argument to `Pathlib.mkdir()` to mimic + `mkdir -p` and `os.makedirs()` functionality. When true, ignore + FileExistsErrors. Patch by Berker Peksag. -- Issue #20299: Argument Clinic custom converters may now change the default - value of c_default and py_default with a class member. +- Issue #22127: Bypass IDNA for pure-ASCII host names in the socket module + (in particular for numeric IPs). -- Issue #20287: Argument Clinic's output is now configurable, allowing - delaying its output or even redirecting it to a separate file. +- Issue #21047: set the default value for the *convert_charrefs* argument + of HTMLParser to True. Patch by Berker Peksag. -- Issue #20226: Argument Clinic now permits simple expressions - (e.g. "sys.maxsize - 1") as default values for parameters. +- Add an __all__ to html.entities. -- Issue #19936: Added executable bits or shebang lines to Python scripts which - requires them. Disable executable bits and shebang lines in test and - benchmark files in order to prevent using a random system python, and in - source files of modules which don't provide command line interface. Fixed - shebang lines in the unittestgui and checkpip scripts. +- Issue #15114: the strict mode and argument of HTMLParser, HTMLParser.error, + and the HTMLParserError exception have been removed. -- Issue #20268: Argument Clinic now supports cloning the parameters and - return converter of existing functions. +- Issue #22085: Dropped support of Tk 8.3 in Tkinter. -- Issue #20228: Argument Clinic now has special support for class special - methods. +- Issue #21580: Now Tkinter correctly handles bytes arguments passed to Tk. + In particular this allows to initialize images from binary data. -- Issue #20214: Fixed a number of small issues and documentation errors in - Argument Clinic (see issue for details). +- Issue #22003: When initialized from a bytes object, io.BytesIO() now + defers making a copy until it is mutated, improving performance and + memory use on some use cases. Patch by David Wilson. -- Issue #20196: Fixed a bug where Argument Clinic did not generate correct - parsing code for functions with positional-only parameters where all arguments - are optional. +- Issue #22018: On Windows, signal.set_wakeup_fd() now also supports sockets. + A side effect is that Python depends to the WinSock library. -- Issue #18960: 2to3 and the findnocoding.py script now ignore the source - encoding declaration on the second line if the first line contains anything - except a comment. +- Issue #22054: Add os.get_blocking() and os.set_blocking() functions to get + and set the blocking mode of a file descriptor (False if the O_NONBLOCK flag + is set, True otherwise). These functions are not available on Windows. -- Issue #19723: The marker comments Argument Clinic uses have been changed - to improve readability. +- Issue #17172: Make turtledemo start as active on OS X even when run with + subprocess. Patch by Lita Cho. -- Issue #20157: When Argument Clinic renames a parameter because its name - collides with a C keyword, it no longer exposes that rename to PyArg_Parse. +- Issue #21704: Fix build error for _multiprocessing when semaphores + are not available. Patch by Arfrever Frehtes Taifersar Arahesis. -- Issue #20141: Improved Argument Clinic's support for the PyArg_Parse "O!" - format unit. +- Issue #20173: Convert sha1, sha256, sha512 and md5 to ArgumentClinic. + Patch by Vajrasky Kok. -- Issue #20144: Argument Clinic now supports simple symbolic constants - as parameter default values. +- Fix repr(_socket.socket) on Windows 64-bit: don't fail with OverflowError + on closed socket. repr(socket.socket) already works fine. -- Issue #20143: The line numbers reported in Argument Clinic errors are - now more accurate. +- Issue #22033: Reprs of most Python implemened classes now contain actual + class name instead of hardcoded one. -- Issue #20142: Py_buffer variables generated by Argument Clinic are now - initialized with a default value. +- Issue #21947: The dis module can now disassemble generator-iterator + objects based on their gi_code attribute. Patch by Clement Rouault. -Build ------ +- Issue #16133: The asynchat.async_chat.handle_read() method now ignores + BlockingIOError exceptions. -- Issue #12837: Silence a tautological comparison warning on OS X under Clang in - socketmodule.c. +- Issue #22044: Fixed premature DECREF in call_tzinfo_method. + Patch by Tom Flanagan. +- Issue #19884: readline: Disable the meta modifier key if stdout is not + a terminal to not write the ANSI sequence "\033[1034h" into stdout. This + sequence is used on some terminal (ex: TERM=xterm-256color") to enable + support of 8 bit characters. -What's New in Python 3.4.0 Beta 2? -================================== +- Issue #4350: Removed a number of out-of-dated and non-working for a long time + Tkinter methods. -Release date: 2014-01-05 +- Issue #6167: Scrollbar.activate() now returns the name of active element if + the argument is not specified. Scrollbar.set() now always accepts only 2 + arguments. -Core and Builtins ------------------ +- Issue #15275: Clean up and speed up the ntpath module. -- Issue #17432: Drop UCS2 from names of Unicode functions in python3.def. +- Issue #21888: plistlib's load() and loads() now work if the fmt parameter is + specified. -- Issue #19526: Exclude all new API from the stable ABI. Exceptions can be - made if a need is demonstrated. +- Issue #22032: __qualname__ instead of __name__ is now always used to format + fully qualified class names of Python implemented classes. -- Issue #19969: PyBytes_FromFormatV() now raises an OverflowError if "%c" - argument is not in range [0; 255]. +- Issue #22031: Reprs now always use hexadecimal format with the "0x" prefix + when contain an id in form " at 0x...". -- Issue #19995: %c, %o, %x, and %X now issue a DeprecationWarning on non-integer - input; reworded docs to clarify that an integer type should define both __int__ - and __index__. +- Issue #22018: signal.set_wakeup_fd() now raises an OSError instead of a + ValueError on ``fstat()`` failure. -- Issue #19787: PyThread_set_key_value() now always set the value. In Python - 3.3, the function did nothing if the key already exists (if the current value - is a non-NULL pointer). +- Issue #21044: tarfile.open() now handles fileobj with an integer 'name' + attribute. Based on patch by Antoine Pietri. -- Issue #14432: Remove the thread state field from the frame structure. Fix a - crash when a generator is created in a C thread that is destroyed while the - generator is still used. The issue was that a generator contains a frame, and - the frame kept a reference to the Python state of the destroyed C thread. The - crash occurs when a trace function is setup. +- Issue #21966: Respect -q command-line option when code module is ran. -- Issue #19576: PyGILState_Ensure() now initializes threads. At startup, Python - has no concrete GIL. If PyGILState_Ensure() is called from a new thread for - the first time and PyEval_InitThreads() was not called yet, a GIL needs to be - created. +- Issue #19076: Don't pass the redundant 'file' argument to self.error(). -- Issue #17576: Deprecation warning emitted now when __int__() or __index__() - return not int instance. +- Issue #16382: Improve exception message of warnings.warn() for bad + category. Initial patch by Phil Elson. -- Issue #19932: Fix typo in import.h, missing whitespaces in function prototypes. +- Issue #21932: os.read() now uses a :c:func:`Py_ssize_t` type instead of + :c:type:`int` for the size to support reading more than 2 GB at once. On + Windows, the size is truncted to INT_MAX. As any call to os.read(), the OS + may read less bytes than the number of requested bytes. -- Issue #19736: Add module-level statvfs constants defined for GNU/glibc - based systems. +- Issue #21942: Fixed source file viewing in pydoc's server mode on Windows. -- Issue #20097: Fix bad use of "self" in importlib's WindowsRegistryFinder. +- Issue #11259: asynchat.async_chat().set_terminator() now raises a ValueError + if the number of received bytes is negative. -- Issue #19729: In str.format(), fix recursive expansion in format spec. +- Issue #12523: asynchat.async_chat.push() now raises a TypeError if it doesn't + get a bytes string -- Issue #19638: Fix possible crash / undefined behaviour from huge (more than 2 - billion characters) input strings in _Py_dg_strtod. +- Issue #21707: Add missing kwonlyargcount argument to + ModuleFinder.replace_paths_in_code(). -Library -------- +- Issue #20639: calling Path.with_suffix('') allows removing the suffix + again. Patch by July Tikhonov. -- Issue #20154: Deadlock in asyncio.StreamReader.readexactly(). +- Issue #21714: Disallow the construction of invalid paths using + Path.with_name(). Original patch by Antony Lee. -- Issue #16113: Remove sha3 module again. +- Issue #15014: Added 'auth' method to smtplib to make implementing auth + mechanisms simpler, and used it internally in the login method. -- Issue #20111: pathlib.Path.with_suffix() now sanity checks the given suffix. +- Issue #21151: Fixed a segfault in the winreg module when ``None`` is passed + as a ``REG_BINARY`` value to SetValueEx. Patch by John Ehresman. -- Fix breakage in TestSuite.countTestCases() introduced by issue #11798. +- Issue #21090: io.FileIO.readall() does not ignore I/O errors anymore. Before, + it ignored I/O errors if at least the first C call read() succeed. -- Issue #20108: Avoid parameter name clash in inspect.getcallargs(). +- Issue #5800: headers parameter of wsgiref.headers.Headers is now optional. + Initial patch by Pablo Torres Navarrete and SilentGhost. -- Issue #19918: Fix PurePath.relative_to() under Windows. +- Issue #21781: ssl.RAND_add() now supports strings longer than 2 GB. -- Issue #19422: Explicitly disallow non-SOCK_STREAM sockets in the ssl - module, rather than silently let them emit clear text data. +- Issue #21679: Prevent extraneous fstat() calls during open(). Patch by + Bohuslav Kabrda. -- Issue #20046: Locale alias table no longer contains entities which can be - calculated. Generalized support of the euro modifier. +- Issue #21863: cProfile now displays the module name of C extension functions, + in addition to their own name. -- Issue #20027: Fixed locale aliases for devanagari locales. +- Issue #11453: asyncore: emit a ResourceWarning when an unclosed file_wrapper + object is destroyed. The destructor now closes the file if needed. The + close() method can now be called twice: the second call does nothing. -- Issue #20067: Tkinter variables now work when wantobjects is false. +- Issue #21858: Better handling of Python exceptions in the sqlite3 module. -- Issue #19020: Tkinter now uses splitlist() instead of split() in configure - methods. +- Issue #21476: Make sure the email.parser.BytesParser TextIOWrapper is + discarded after parsing, so the input file isn't unexpectedly closed. -- Issue #19744: ensurepip now provides a better error message when Python is - built without SSL/TLS support (pip currently requires that support to run, - even if only operating with local wheel files) +- Issue #20295: imghdr now recognizes OpenEXR format images. -- Issue #19734: ensurepip now ignores all pip environment variables to avoid - odd behaviour based on user configuration settings +- Issue #21729: Used the "with" statement in the dbm.dumb module to ensure + files closing. Patch by Claudiu Popa. -- Fix TypeError on "setup.py upload --show-response". +- Issue #21491: socketserver: Fix a race condition in child processes reaping. -- Issue #20045: Fix "setup.py register --list-classifiers". +- Issue #21719: Added the ``st_file_attributes`` field to os.stat_result on + Windows. -- Issue #18879: When a method is looked up on a temporary file, avoid closing - the file before the method is possibly called. +- Issue #21832: Require named tuple inputs to be exact strings. -- Issue #20037: Avoid crashes when opening a text file late at interpreter - shutdown. +- Issue #21722: The distutils "upload" command now exits with a non-zero + return code when uploading fails. Patch by Martin Dengler. -- Issue #19967: Thanks to the PEP 442, asyncio.Future now uses a - destructor to log uncaught exceptions, instead of the dedicated - _TracebackLogger class. +- Issue #21723: asyncio.Queue: support any type of number (ex: float) for the + maximum size. Patch written by Vajrasky Kok. -- Added a Task.current_task() class method to asyncio. +- Issue #21711: support for "site-python" directories has now been removed + from the site module (it was deprecated in 3.4). -- Issue #19850: Set SA_RESTART in asyncio when registering a signal - handler to limit EINTR occurrences. +- Issue #17552: new socket.sendfile() method allowing to send a file over a + socket by using high-performance os.sendfile() on UNIX. + Patch by Giampaolo Rodola'. -- Implemented write flow control in asyncio for proactor event loop (Windows). +- Issue #18039: dbm.dump.open() now always creates a new database when the + flag has the value 'n'. Patch by Claudiu Popa. -- Change write buffer in asyncio use to avoid O(N**2) behavior. Make - write()/sendto() accept bytearray/memoryview. +- Issue #21326: Add a new is_closed() method to asyncio.BaseEventLoop. + run_forever() and run_until_complete() methods of asyncio.BaseEventLoop now + raise an exception if the event loop was closed. -- Issue #20034: Updated alias mapping to most recent locale.alias file - from X.org distribution using makelocalealias.py. +- Issue #21766: Prevent a security hole in CGIHTTPServer by URL unquoting paths + before checking for a CGI script at that path. -- Issue #5815: Fixed support for locales with modifiers. Fixed support for - locale encodings with hyphens. +- Issue #21310: Fixed possible resource leak in failed open(). -- Issue #20026: Fix the sqlite module to handle correctly invalid isolation - level (wrong type). +- Issue #21256: Printout of keyword args should be in deterministic order in + a mock function call. This will help to write better doctests. -- Issue #18829: csv.Dialect() now checks type for delimiter, escapechar and - quotechar fields. Original patch by Vajrasky Kok. +- Issue #21677: Fixed chaining nonnormalized exceptions in io close() methods. -- Issue #19855: uuid.getnode() on Unix now looks on the PATH for the - executables used to find the mac address, with /sbin and /usr/sbin as - fallbacks. +- Issue #11709: Fix the pydoc.help function to not fail when sys.stdin is not a + valid file. -- Issue #20007: HTTPResponse.read(0) no more prematurely closes connection. - Original patch by Simon Sapin. +- Issue #21515: tempfile.TemporaryFile now uses os.O_TMPFILE flag is available. -- Issue #19946: multiprocessing now uses runpy to initialize __main__ in - child processes when necessary, allowing it to correctly handle scripts - without suffixes and submodules that use explicit relative imports or - otherwise rely on parent modules being correctly imported prior to - execution. +- Issue #13223: Fix pydoc.writedoc so that the HTML documentation for methods + that use 'self' in the example code is generated correctly. -- Issue #19921: When Path.mkdir() is called with parents=True, any missing - parent is created with the default permissions, ignoring the mode argument - (mimicking the POSIX "mkdir -p" command). +- Issue #21463: In urllib.request, fix pruning of the FTP cache. -- Issue #19887: Improve the Path.resolve() algorithm to support certain - symlink chains. +- Issue #21618: The subprocess module could fail to close open fds that were + inherited by the calling process and already higher than POSIX resource + limits would otherwise allow. On systems with a functioning /proc/self/fd + or /dev/fd interface the max is now ignored and all fds are closed. -- Issue #19912: Fixed numerous bugs in ntpath.splitunc(). +- Issue #20383: Introduce importlib.util.module_from_spec() as the preferred way + to create a new module. -- Issue #19911: ntpath.splitdrive() now correctly processes the 'İ' character - (U+0130, LATIN CAPITAL LETTER I WITH DOT ABOVE). +- Issue #21552: Fixed possible integer overflow of too long string lengths in + the tkinter module on 64-bit platforms. -- Issue #19532: python -m compileall with no filename/directory arguments now - respects the -f and -q flags instead of ignoring them. +- Issue #14315: The zipfile module now ignores extra fields in the central + directory that are too short to be parsed instead of letting a struct.unpack + error bubble up as this "bad data" appears in many real world zip files in + the wild and is ignored by other zip tools. -- Issue #19623: Fixed writing to unseekable files in the aifc module. +- Issue #13742: Added "key" and "reverse" parameters to heapq.merge(). + (First draft of patch contributed by Simon Sapin.) -- Issue #19946: multiprocessing.spawn now raises ImportError when the module to - be used as the main module cannot be imported. +- Issue #21402: tkinter.ttk now works when default root window is not set. -- Issue #17919: select.poll.register() again works with poll.POLLNVAL on AIX. - Fixed integer overflow in the eventmask parameter. +- Issue #3015: _tkinter.create() now creates tkapp object with wantobject=1 by + default. - - Issue #10203: sqlite3.Row now truly supports sequence protocol. In particulr -- Issue #19063: if a Charset's body_encoding was set to None, the email - package would generate a message claiming the Content-Transfer-Encoding - was 7bit, and produce garbage output for the content. This now works. - A couple of other set_payload mishandlings of non-ASCII are also fixed. - In addition, calling set_payload with a string argument without - specifying a charset now raises an error (this is a new error in 3.4). ++- Issue #10203: sqlite3.Row now truly supports sequence protocol. In particular + it supports reverse() and negative indices. Original patch by Claudiu Popa. -- Issue #15475: Add __sizeof__ implementations for itertools objects. +- Issue #18807: If copying (no symlinks) specified for a venv, then the python + interpreter aliases (python, python3) are now created by copying rather than + symlinking. -- Issue #19944: Fix importlib.find_spec() so it imports parents as needed - and move the function to importlib.util. +- Issue #20197: Added support for the WebP image type in the imghdr module. + Patch by Fabrice Aneche and Claudiu Popa. -- Issue #19880: Fix a reference leak in unittest.TestCase. Explicitly break - reference cycles between frames and the _Outcome instance. +- Issue #21513: Speedup some properties of IP addresses (IPv4Address, + IPv6Address) such as .is_private or .is_multicast. -- Issue #17429: platform.linux_distribution() now decodes files from the UTF-8 - encoding with the surrogateescape error handler, instead of decoding from the - locale encoding in strict mode. It fixes the function on Fedora 19 which is - probably the first major distribution release with a non-ASCII name. Patch - written by Toshio Kuratomi. +- Issue #21137: Improve the repr for threading.Lock() and its variants + by showing the "locked" or "unlocked" status. Patch by Berker Peksag. -- Issue #19343: Expose FreeBSD-specific APIs in resource module. Original - patch by Koobs. +- Issue #21538: The plistlib module now supports loading of binary plist files + when reference or offset size is not a power of two. -- Issue #19929: Call os.read with 32768 within subprocess.Popen.communicate - rather than 4096 for efficiency. A microbenchmark shows Linux and OS X - both using ~50% less cpu time this way. +- Issue #21455: Add a default backlog to socket.listen(). -- Issue #19506: Use a memoryview to avoid a data copy when piping data - to stdin within subprocess.Popen.communicate. 5-10% less cpu usage. +- Issue #21525: Most Tkinter methods which accepted tuples now accept lists too. -- Issue #19876: selectors unregister() no longer raises ValueError or OSError - if the FD is closed (as long as it was registered). +- Issue #22166: With the assistance of a new internal _codecs._forget_codec + helping function, test_codecs now clears the encoding caches to avoid the + appearance of a reference leak -- Issue #19908: pathlib now joins relative Windows paths correctly when a drive - is present. Original patch by Antoine Pitrou. +- Issue #22236: Tkinter tests now don't reuse default root window. New root + window is created for every test class. -- Issue #19296: Silence compiler warning in dbm_open +- Issue #10744: Fix PEP 3118 format strings on ctypes objects with a nontrivial + shape. -- Issue #6784: Strings from Python 2 can now be unpickled as bytes - objects by setting the encoding argument of Unpickler to be 'bytes'. - Initial patch by Merlijn van Deen. +- Issue #20826: Optimize ipaddress.collapse_addresses(). -- Issue #19839: Fix regression in bz2 module's handling of non-bzip2 data at - EOF, and analogous bug in lzma module. +- Issue #21487: Optimize ipaddress.summarize_address_range() and + ipaddress.{IPv4Network,IPv6Network}.subnets(). -- Issue #19881: Fix pickling bug where cpickle would emit bad pickle data for - large bytes string (i.e., with size greater than 2**32-1). +- Issue #21486: Optimize parsing of netmasks in ipaddress.IPv4Network and + ipaddress.IPv6Network. -- Issue #19138: doctest's IGNORE_EXCEPTION_DETAIL now allows a match when - no exception detail exists (no colon following the exception's name, or - a colon does follow but no text follows the colon). +- Issue #13916: Disallowed the surrogatepass error handler for non UTF-* + encodings. -- Issue #19927: Add __eq__ to path-based loaders in importlib. +- Issue #20998: Fixed re.fullmatch() of repeated single character pattern + with ignore case. Original patch by Matthew Barnett. -- Issue #19827: On UNIX, setblocking() and settimeout() methods of - socket.socket can now avoid a second syscall if the ioctl() function can be - used, or if the non-blocking flag of the socket is unchanged. +- Issue #21075: fileinput.FileInput now reads bytes from standard stream if + binary mode is specified. Patch by Sam Kimbrel. -- Issue #19785: smtplib now supports SSLContext.check_hostname and server name - indication for TLS/SSL connections. +- Issue #19775: Add a samefile() method to pathlib Path objects. Initial + patch by Vajrasky Kok. -- Issue #19784: poplib now supports SSLContext.check_hostname and server name - indication for TLS/SSL connections. +- Issue #21226: Set up modules properly in PyImport_ExecCodeModuleObject + (and friends). -- Issue #19783: nntplib now supports SSLContext.check_hostname and server name - indication for TLS/SSL connections. +- Issue #21398: Fix an unicode error in the pydoc pager when the documentation + contains characters not encodable to the stdout encoding. -- Issue #19782: imaplib now supports SSLContext.check_hostname and server name - indication for TLS/SSL connections. +- Issue #16531: ipaddress.IPv4Network and ipaddress.IPv6Network now accept + an (address, netmask) tuple argument, so as to easily construct network + objects from existing addresses. -- Issue #20123: Fix pydoc.synopsis() for "binary" modules. +- Issue #21156: importlib.abc.InspectLoader.source_to_code() is now a + staticmethod. -- Issue #19834: Support unpickling of exceptions pickled by Python 2. +- Issue #21424: Simplified and optimized heaqp.nlargest() and nmsmallest() + to make fewer tuple comparisons. -- Issue #19781: ftplib now supports SSLContext.check_hostname and server name - indication for TLS/SSL connections. +- Issue #21396: Fix TextIOWrapper(..., write_through=True) to not force a + flush() on the underlying binary stream. Patch by akira. -- Issue #19509: Add SSLContext.check_hostname to match the peer's certificate - with server_hostname on handshake. +- Issue #18314: Unlink now removes junctions on Windows. Patch by Kim Gräsman -- Issue #15798: Fixed subprocess.Popen() to no longer fail if file - descriptor 0, 1 or 2 is closed. +- Issue #21088: Bugfix for curses.window.addch() regression in 3.4.0. + In porting to Argument Clinic, the first two arguments were reversed. -- Issue #17897: Optimized unpickle prefetching. +- Issue #21407: _decimal: The module now supports function signatures. -- Issue #3693: Make the error message more helpful when the array.array() - constructor is given a str. Move the array module typecode documentation to - the docstring of the constructor. +- Issue #10650: Remove the non-standard 'watchexp' parameter from the + Decimal.quantize() method in the Python version. It had never been + present in the C version. -- Issue #19088: Fixed incorrect caching of the copyreg module in - object.__reduce__() and object.__reduce_ex__(). +- Issue #21469: Reduced the risk of false positives in robotparser by + checking to make sure that robots.txt has been read or does not exist + prior to returning True in can_fetch(). -- Issue #19698: Removed exec_module() methods from - importlib.machinery.BuiltinImporter and ExtensionFileLoader. +- Issue #19414: Have the OrderedDict mark deleted links as unusable. + This gives an early failure if the link is deleted during iteration. -- Issue #18864: Added a setter for ModuleSpec.has_location. +- Issue #21421: Add __slots__ to the MappingViews ABC. + Patch by Josh Rosenberg. -- Fixed _pickle.Unpickler to not fail when loading empty strings as - persistent IDs. +- Issue #21101: Eliminate double hashing in the C speed-up code for + collections.Counter(). -- Issue #11480: Fixed copy.copy to work with classes with custom metaclasses. - Patch by Daniel Urban. +- Issue #21321: itertools.islice() now releases the reference to the source + iterator when the slice is exhausted. Patch by Anton Afanasyev. -- Issue #6477: Added support for pickling the types of built-in singletons - (i.e., Ellipsis, NotImplemented, None). +- Issue #21057: TextIOWrapper now allows the underlying binary stream's + read() or read1() method to return an arbitrary bytes-like object + (such as a memoryview). Patch by Nikolaus Rath. -- Issue #19713: Add remaining PEP 451-related deprecations and move away - from using find_module/find_loaer/load_module. +- Issue #20951: SSLSocket.send() now raises either SSLWantReadError or + SSLWantWriteError on a non-blocking socket if the operation would block. + Previously, it would return 0. Patch by Nikolaus Rath. -- Issue #19708: Update pkgutil to use the new importer APIs. +- Issue #13248: removed previously deprecated asyncore.dispatcher __getattr__ + cheap inheritance hack. -- Issue #19703: Update pydoc to use the new importer APIs. +- Issue #9815: assertRaises now tries to clear references to local variables + in the exception's traceback. -- Issue #19851: Fixed a regression in reloading sub-modules. +- Issue #19940: ssl.cert_time_to_seconds() now interprets the given time + string in the UTC timezone (as specified in RFC 5280), not the local + timezone. -- ssl.create_default_context() sets OP_NO_COMPRESSION to prevent CRIME. +- Issue #13204: Calling sys.flags.__new__ would crash the interpreter, + now it raises a TypeError. -- Issue #19802: Add socket.SO_PRIORITY. +- Issue #19385: Make operations on a closed dbm.dumb database always raise the + same exception. -- Issue #11508: Fixed uuid.getnode() and uuid.uuid1() on environment with - virtual interface. Original patch by Kent Frazier. +- Issue #21207: Detect when the os.urandom cached fd has been closed or + replaced, and open it anew. -- Issue #11489: JSON decoder now accepts lone surrogates. +- Issue #21291: subprocess's Popen.wait() is now thread safe so that + multiple threads may be calling wait() or poll() on a Popen instance + at the same time without losing the Popen.returncode value. -- Issue #19545: Avoid chained exceptions while passing stray % to - time.strptime(). Initial patch by Claudiu Popa. +- Issue #21127: Path objects can now be instantiated from str subclass + instances (such as ``numpy.str_``). -IDLE ----- +- Issue #15002: urllib.response object to use _TemporaryFileWrapper (and + _TemporaryFileCloser) facility. Provides a better way to handle file + descriptor close. Patch contributed by Christian Theune. -- Issue #20058: sys.stdin.readline() in IDLE now always returns only one line. +- Issue #12220: mindom now raises a custom ValueError indicating it doesn't + support spaces in URIs instead of letting a 'split' ValueError bubble up. -- Issue #19481: print() of string subclass instance in IDLE no longer hangs. +- Issue #21068: The ssl.PROTOCOL* constants are now enum members. -- Issue #18270: Prevent possible IDLE AttributeError on OS X when no initial - shell window is present. +- Issue #21276: posixmodule: Don't define USE_XATTRS on KFreeBSD and the Hurd. -Tests ------ +- Issue #21262: New method assert_not_called for Mock. + It raises AssertionError if the mock has been called. -- Issue #20055: Fix test_shutil under Windows with symlink privileges held. - Patch by Vajrasky Kok. +- Issue #21238: New keyword argument `unsafe` to Mock. It raises + `AttributeError` incase of an attribute startswith assert or assret. -- Issue #20070: Don't run test_urllib2net when network resources are not - enabled. +- Issue #20896: ssl.get_server_certificate() now uses PROTOCOL_SSLv23, not + PROTOCOL_SSLv3, for maximum compatibility. -- Issue #19938: Re-enabled test_bug_1333982 in test_dis, which had been - disabled since 3.0 due to the changes in listcomp handling. +- Issue #21239: patch.stopall() didn't work deterministically when the same + name was patched more than once. -- Issue #19320: test_tcl no longer fails when wantobjects is false. +- Issue #21203: Updated fileConfig and dictConfig to remove inconsistencies. + Thanks to Jure Koren for the patch. -- Issue #19919: Fix flaky SSL test. connect_ex() sometimes returns - EWOULDBLOCK on Windows or VMs hosted on Windows. +- Issue #21222: Passing name keyword argument to mock.create_autospec now + works. -- Issue #19912: Added tests for ntpath.splitunc(). +- Issue #21197: Add lib64 -> lib symlink in venvs on 64-bit non-OS X POSIX. -- Issue #19828: Fixed test_site when the whole suite is run with -S. +- Issue #17498: Some SMTP servers disconnect after certain errors, violating + strict RFC conformance. Instead of losing the error code when we issue the + subsequent RSET, smtplib now returns the error code and defers raising the + SMTPServerDisconnected error until the next command is issued. -- Issue #19928: Implemented a test for repr() of cell objects. +- Issue #17826: setting an iterable side_effect on a mock function created by + create_autospec now works. Patch by Kushal Das. -- Issue #19535: Fixed test_docxmlrpc, test_functools, test_inspect, and - test_statistics when python is run with -OO. +- Issue #7776: Fix ``Host:`` header and reconnection when using + http.client.HTTPConnection.set_tunnel(). Patch by Nikolaus Rath. -- Issue #19926: Removed unneeded test_main from test_abstract_numbers. - Patch by Vajrasky Kok. +- Issue #20968: unittest.mock.MagicMock now supports division. + Patch by Johannes Baiter. -- Issue #19572: More skipped tests explicitly marked as skipped. +- Fix arbitrary memory access in JSONDecoder.raw_decode with a negative second + parameter. Bug reported by Guido Vranken. -- Issue #19595, #19987: Re-enabled a long-disabled test in test_winsound. +- Issue #21169: getpass now handles non-ascii characters that the + input stream encoding cannot encode by re-encoding using the + replace error handler. -- Issue #19588: Fixed tests in test_random that were silently skipped most - of the time. Patch by Julian Gindi. +- Issue #21171: Fixed undocumented filter API of the rot13 codec. + Patch by Berker Peksag. -Build ------ +- Issue #20539: Improved math.factorial error message for large positive inputs + and changed exception type (OverflowError -> ValueError) for large negative + inputs. -- Issue #19728: Enable pip installation by default on Windows. +- Issue #21172: isinstance check relaxed from dict to collections.Mapping. -- Issue #16136: Remove VMS support +- Issue #21155: asyncio.EventLoop.create_unix_server() now raises a ValueError + if path and sock are specified at the same time. -- Issue #18215: Add script Tools/ssl/test_multiple_versions.py to compile and - run Python's unit tests with multiple versions of OpenSSL. +- Issue #21136: Avoid unnecessary normalization of Fractions resulting from + power and other operations. Patch by Raymond Hettinger. -- Issue #19922: define _INCLUDE__STDC_A1_SOURCE in HP-UX to include mbstate_t - for mbrtowc(). +- Issue #17621: Introduce importlib.util.LazyLoader. -- Issue #19788: kill_python(_d).exe is now run as a PreBuildEvent on the - pythoncore sub-project. This should prevent build errors due a previous - build's python(_d).exe still running. +- Issue #21076: signal module constants were turned into enums. + Patch by Giampaolo Rodola'. -Documentation -------------- +- Issue #20636: Improved the repr of Tkinter widgets. -- Issue #20265: Updated some parts of the Using Windows document. +- Issue #19505: The items, keys, and values views of OrderedDict now support + reverse iteration using reversed(). -- Issue #20266: Updated some parts of the Windows FAQ. +- Issue #21149: Improved thread-safety in logging cleanup during interpreter + shutdown. Thanks to Devin Jeanpierre for the patch. -- Issue #20255: Updated the about and bugs pages. +- Issue #21058: Fix a leak of file descriptor in + :func:`tempfile.NamedTemporaryFile`, close the file descriptor if + :func:`io.open` fails -- Issue #20253: Fixed a typo in the ipaddress docs that advertised an - illegal attribute name. Found by INADA Naoki. +- Issue #21200: Return None from pkgutil.get_loader() when __spec__ is missing. -- Issue #18840: Introduce the json module in the tutorial, and de-emphasize - the pickle module. +- Issue #21013: Enhance ssl.create_default_context() when used for server side + sockets to provide better security by default. -- Issue #19845: Updated the Compiling Python on Windows section. +- Issue #20145: `assertRaisesRegex` and `assertWarnsRegex` now raise a + TypeError if the second argument is not a string or compiled regex. -- Issue #19795: Improved markup of True/False constants. +- Issue #20633: Replace relative import by absolute import. -Tools/Demos ------------ +- Issue #20980: Stop wrapping exception when using ThreadPool. -- Issue #19659: Added documentation for Argument Clinic. +- Issue #21082: In os.makedirs, do not set the process-wide umask. Note this + changes behavior of makedirs when exist_ok=True. -- Issue #19976: Argument Clinic METH_NOARGS functions now always - take two parameters. +- Issue #20990: Fix issues found by pyflakes for multiprocessing. +- Issue #21015: SSL contexts will now automatically select an elliptic + curve for ECDH key exchange on OpenSSL 1.0.2 and later, and otherwise + default to "prime256v1". -What's New in Python 3.4.0 Beta 1? -================================== +- Issue #21000: Improve the command-line interface of json.tool. -Release date: 2013-11-24 +- Issue #20995: Enhance default ciphers used by the ssl module to enable + better security an prioritize perfect forward secrecy. -Core and Builtins ------------------ +- Issue #20884: Don't assume that __file__ is defined on importlib.__init__. -- Use the repr of a module name in more places in import, especially - exceptions. +- Issue #21499: Ignore __builtins__ in several test_importlib.test_api tests. -- Issue #19619: str.encode, bytes.decode and bytearray.decode now use an - internal API to throw LookupError for known non-text encodings, rather - than attempting the encoding or decoding operation and then throwing a - TypeError for an unexpected output type. (The latter mechanism remains - in place for third party non-text encodings) +- Issue #20627: xmlrpc.client.ServerProxy is now a context manager. -- Issue #19183: Implement PEP 456 'secure and interchangeable hash algorithm'. - Python now uses SipHash24 on all major platforms. +- Issue #19165: The formatter module now raises DeprecationWarning instead of + PendingDeprecationWarning. -- Issue #12892: The utf-16* and utf-32* encoders no longer allow surrogate code - points (U+D800-U+DFFF) to be encoded. The utf-32* decoders no longer decode - byte sequences that correspond to surrogate code points. The surrogatepass - error handler now works with the utf-16* and utf-32* codecs. Based on - patches by Victor Stinner and Kang-Hao (Kenny) Lu. +- Issue #13936: Remove the ability of datetime.time instances to be considered + false in boolean contexts. -- Issue #17806: Added keyword-argument support for "tabsize" to - str/bytes.expandtabs(). +- Issue #18931: selectors module now supports /dev/poll on Solaris. + Patch by Giampaolo Rodola'. -- Issue #17828: Output type errors in str.encode(), bytes.decode() and - bytearray.decode() now direct users to codecs.encode() or codecs.decode() - as appropriate. +- Issue #19977: When the ``LC_TYPE`` locale is the POSIX locale (``C`` locale), + :py:data:`sys.stdin` and :py:data:`sys.stdout` are now using the + ``surrogateescape`` error handler, instead of the ``strict`` error handler. -- Issue #17828: The interpreter now attempts to chain errors that occur in - codec processing with a replacement exception of the same type that - includes the codec name in the error message. It ensures it only does this - when the creation of the replacement exception won't lose any information. +- Issue #20574: Implement incremental decoder for cp65001 code (Windows code + page 65001, Microsoft UTF-8). -- Issue #19466: Clear the frames of daemon threads earlier during the - Python shutdown to call objects destructors. So "unclosed file" resource - warnings are now corretly emitted for daemon threads. +- Issue #20879: Delay the initialization of encoding and decoding tables for + base32, ascii85 and base85 codecs in the base64 module, and delay the + initialization of the unquote_to_bytes() table of the urllib.parse module, to + not waste memory if these modules are not used. -- Issue #19514: Deduplicate some _Py_IDENTIFIER declarations. - Patch by Andrei Dorian Duma. +- Issue #19157: Include the broadcast address in the usuable hosts for IPv6 + in ipaddress. -- Issue #17936: Fix O(n**2) behaviour when adding or removing many subclasses - of a given type. +- Issue #11599: When an external command (e.g. compiler) fails, distutils now + prints out the whole command line (instead of just the command name) if the + environment variable DISTUTILS_DEBUG is set. -- Issue #19428: zipimport now handles errors when reading truncated or invalid - ZIP archive. +- Issue #4931: distutils should not produce unhelpful "error: None" messages + anymore. distutils.util.grok_environment_error is kept but doc-deprecated. -- Issue #18408: Add a new PyFrame_FastToLocalsWithError() function to handle - exceptions when merging fast locals into f_locals of a frame. - PyEval_GetLocals() now raises an exception and return NULL on failure. +- Issue #20875: Prevent possible gzip "'read' is not defined" NameError. + Patch by Claudiu Popa. -- Issue #19369: Optimized the usage of __length_hint__(). +- Issue #11558: ``email.message.Message.attach`` now returns a more + useful error message if ``attach`` is called on a message for which + ``is_multipart`` is False. -- Issue #18603: Ensure that PyOS_mystricmp and PyOS_mystrnicmp are in the - Python executable and not removed by the linker's optimizer. +- Issue #20283: RE pattern methods now accept the string keyword parameters + as documented. The pattern and source keyword parameters are left as + deprecated aliases. -- Issue #19306: Add extra hints to the faulthandler module's stack - dumps that these are "upside down". +- Issue #20778: Fix modulefinder to work with bytecode-only modules. -Library -------- +- Issue #20791: copy.copy() now doesn't make a copy when the input is + a bytes object. Initial patch by Peter Otten. -- Issue #3158: doctest can now find doctests in functions and methods - written in C. +- Issue #19748: On AIX, time.mktime() now raises an OverflowError for year + outsize range [1902; 2037]. -- Issue #13477: Added command line interface to the tarfile module. - Original patch by Berker Peksag. +- Issue #19573: inspect.signature: Use enum for parameter kind constants. -- Issue #19674: inspect.signature() now produces a correct signature - for some builtins. +- Issue #20726: inspect.signature: Make Signature and Parameter picklable. -- Issue #19722: Added opcode.stack_effect(), which - computes the stack effect of bytecode instructions. +- Issue #17373: Add inspect.Signature.from_callable method. -- Issue #19735: Implement private function ssl._create_stdlib_context() to - create SSLContext objects in Python's stdlib module. It provides a single - configuration point and makes use of SSLContext.load_default_certs(). +- Issue #20378: Improve repr of inspect.Signature and inspect.Parameter. -- Issue #16203: Add re.fullmatch() function and regex.fullmatch() method, - which anchor the pattern at both ends of the string to match. - Original patch by Matthew Barnett. +- Issue #20816: Fix inspect.getcallargs() to raise correct TypeError for + missing keyword-only arguments. Patch by Jeremiah Lowin. -- Issue #13592: Improved the repr for regular expression pattern objects. - Based on patch by Hugo Lopes Tavares. +- Issue #20817: Fix inspect.getcallargs() to fail correctly if more + than 3 arguments are missing. Patch by Jeremiah Lowin. -- Issue #19641: Added the audioop.byteswap() function to convert big-endian - samples to little-endian and vice versa. +- Issue #6676: Ensure a meaningful exception is raised when attempting + to parse more than one XML document per pyexpat xmlparser instance. + (Original patches by Hirokazu Yamamoto and Amaury Forgeot d'Arc, with + suggested wording by David Gutteridge) -- Issue #15204: Deprecated the 'U' mode in file-like objects. +- Issue #21117: Fix inspect.signature to better support functools.partial. + Due to the specifics of functools.partial implementation, + positional-or-keyword arguments passed as keyword arguments become + keyword-only. -- Issue #17810: Implement PEP 3154, pickle protocol 4. +- Issue #20334: inspect.Signature and inspect.Parameter are now hashable. + Thanks to Antony Lee for bug reports and suggestions. -- Issue #19668: Added support for the cp1125 encoding. +- Issue #15916: doctest.DocTestSuite returns an empty unittest.TestSuite instead + of raising ValueError if it finds no tests -- Issue #19689: Add ssl.create_default_context() factory function. It creates - a new SSLContext object with secure default settings. +- Issue #21209: Fix asyncio.tasks.CoroWrapper to workaround a bug + in yield-from implementation in CPythons prior to 3.4.1. -- Issue #19727: os.utime(..., None) is now potentially more precise - under Windows. +- asyncio: Add gi_{frame,running,code} properties to CoroWrapper + (upstream issue #163). -- Issue #17201: ZIP64 extensions now are enabled by default. Patch by - William Mallard. +- Issue #21311: Avoid exception in _osx_support with non-standard compiler + configurations. Patch by John Szakmeister. -- Issue #19292: Add SSLContext.load_default_certs() to load default root CA - certificates from default stores or system stores. By default the method - loads CA certs for authentication of server certs. +- Issue #11571: Ensure that the turtle window becomes the topmost window + when launched on OS X. -- Issue #19673: Add pathlib to the stdlib as a provisional module (PEP 428). +- Issue #21801: Validate that __signature__ is None or an instance of Signature. -- Issue #16596: pdb in a generator now properly skips over yield and - yield from rather than stepping out of the generator into its - caller. (This is essential for stepping through asyncio coroutines.) +- Issue #21923: Prevent AttributeError in distutils.sysconfig.customize_compiler + due to possible uninitialized _config_vars. -- Issue #17916: Added dis.Bytecode.from_traceback() and - dis.Bytecode.current_offset to easily display "current instruction" - markers in the new disassembly API (Patch by Claudiu Popa). +- Issue #21323: Fix http.server to again handle scripts in CGI subdirectories, + broken by the fix for security issue #19435. Patch by Zach Byrne. -- Issue #19552: venv now supports bootstrapping pip into virtual environments +- Issue #22733: Fix ffi_prep_args not zero-extending argument values correctly + on 64-bit Windows. -- Issue #17134: Finalize interface to Windows' certificate store. Cert and - CRL enumeration are now two functions. enum_certificates() also returns - purpose flags as set of OIDs. +- Issue #23302: Default to TCP_NODELAY=1 upon establishing an HTTPConnection. + Removed use of hard-coded MSS as it's an optimization that's no longer needed + with Nagle disabled. -- Issue #19555: Restore sysconfig.get_config_var('SO'), (and the distutils - equivalent) with a DeprecationWarning pointing people at $EXT_SUFFIX. +IDLE +---- -- Issue #8813: Add SSLContext.verify_flags to change the verification flags - of the context in order to enable certification revocation list (CRL) - checks or strict X509 rules. +- Issue #20577: Configuration of the max line length for the FormatParagraph + extension has been moved from the General tab of the Idle preferences dialog + to the FormatParagraph tab of the Config Extensions dialog. + Patch by Tal Einat. -- Issue #18294: Fix the zlib module to make it 64-bit safe. +- Issue #16893: Update Idle doc chapter to match current Idle and add new + information. -- Issue #19682: Fix compatibility issue with old version of OpenSSL that - was introduced by Issue #18379. +- Issue #3068: Add Idle extension configuration dialog to Options menu. + Changes are written to HOME/.idlerc/config-extensions.cfg. + Original patch by Tal Einat. -- Issue #14455: plistlib now supports binary plists and has an updated API. +- Issue #16233: A module browser (File : Class Browser, Alt+C) requires a + editor window with a filename. When Class Browser is requested otherwise, + from a shell, output window, or 'Untitled' editor, Idle no longer displays + an error box. It now pops up an Open Module box (Alt+M). If a valid name + is entered and a module is opened, a corresponding browser is also opened. -- Issue #19633: Fixed writing not compressed 16- and 32-bit wave files on - big-endian platforms. +- Issue #4832: Save As to type Python files automatically adds .py to the + name you enter (even if your system does not display it). Some systems + automatically add .txt when type is Text files. -- Issue #18379: SSLSocket.getpeercert() returns CA issuer AIA fields, OCSP - and CRL distribution points. +- Issue #21986: Code objects are not normally pickled by the pickle module. + To match this, they are no longer pickled when running under Idle. -- Issue #18138: Implement cadata argument of SSLContext.load_verify_location() - to load CA certificates and CRL from memory. It supports PEM and DER - encoded strings. +- Issue #17390: Adjust Editor window title; remove 'Python', + move version to end. -- Issue #18775: Add name and block_size attribute to HMAC object. They now - provide the same API elements as non-keyed cryptographic hash functions. +- Issue #14105: Idle debugger breakpoints no longer disappear + when inseting or deleting lines. -- Issue #17276: MD5 as default digestmod for HMAC is deprecated. The HMAC - module supports digestmod names, e.g. hmac.HMAC('sha1'). +- Issue #17172: Turtledemo can now be run from Idle. + Currently, the entry is on the Help menu, but it may move to Run. + Patch by Ramchandra Apt and Lita Cho. -- Issue #19449: in csv's writerow, handle non-string keys when generating the - error message that certain keys are not in the 'fieldnames' list. +- Issue #21765: Add support for non-ascii identifiers to HyperParser. -- Issue #13633: Added a new convert_charrefs keyword arg to HTMLParser that, - when True, automatically converts all character references. +- Issue #21940: Add unittest for WidgetRedirector. Initial patch by Saimadhav + Heblikar. -- Issue #2927: Added the unescape() function to the html module. +- Issue #18592: Add unittest for SearchDialogBase. Patch by Phil Webster. -- Issue #8402: Added the escape() function to the glob module. +- Issue #21694: Add unittest for ParenMatch. Patch by Saimadhav Heblikar. -- Issue #17618: Add Base85 and Ascii85 encoding/decoding to the base64 module. +- Issue #21686: add unittest for HyperParser. Original patch by Saimadhav + Heblikar. -- Issue #19634: time.strftime("%y") now raises a ValueError on AIX when given a - year before 1900. +- Issue #12387: Add missing upper(lower)case versions of default Windows key + bindings for Idle so Caps Lock does not disable them. Patch by Roger Serwy. -- Fix test.support.bind_port() to not cause an error when Python was compiled - on a system with SO_REUSEPORT defined in the headers but run on a system - with an OS kernel that does not support that reasonably new socket option. +- Issue #21695: Closing a Find-in-files output window while the search is + still in progress no longer closes Idle. -- Fix compilation error under gcc of the ctypes module bundled libffi for arm. +- Issue #18910: Add unittest for textView. Patch by Phil Webster. -- Issue #19448: Add private API to SSL module to lookup ASN.1 objects by OID, - NID, short name and long name. +- Issue #18292: Add unittest for AutoExpand. Patch by Saihadhav Heblikar. -- Issue #19282: dbm.open now supports the context management protocol. (Inital - patch by Claudiu Popa) +- Issue #18409: Add unittest for AutoComplete. Patch by Phil Webster. -- Issue #8311: Added support for writing any bytes-like objects in the aifc, - sunau, and wave modules. +- Issue #21477: htest.py - Improve framework, complete set of tests. + Patches by Saimadhav Heblikar -- Issue #5202: Added support for unseekable files in the wave module. +- Issue #18104: Add idlelib/idle_test/htest.py with a few sample tests to begin + consolidating and improving human-validated tests of Idle. Change other files + as needed to work with htest. Running the module as __main__ runs all tests. -- Issue #19544 and Issue #1180: Restore global option to ignore - ~/.pydistutils.cfg in Distutils, accidentally removed in backout of - distutils2 changes. +- Issue #21139: Change default paragraph width to 72, the PEP 8 recommendation. -- Issue #19523: Closed FileHandler leak which occurred when delay was set. +- Issue #21284: Paragraph reformat test passes after user changes reformat width. -- Issue #19544 and Issue #6516: Restore support for --user and --group - parameters to sdist command accidentally rolled back as part of the - distutils2 rollback. +- Issue #17654: Ensure IDLE menus are customized properly on OS X for + non-framework builds and for all variants of Tk. -- Issue #13674: Prevented time.strftime from crashing on Windows when given - a year before 1900 and a format of %y. +- Issue #23180: Rename IDLE "Windows" menu item to "Window". + Patch by Al Sweigart. -- Issue #19406: implementation of the ensurepip module (part of PEP 453). - Patch by Donald Stufft and Nick Coghlan. +Build +----- -- Issue #19544 and Issue #6286: Restore use of urllib over http allowing use - of http_proxy for Distutils upload command, a feature accidentally lost - in the rollback of distutils2. +- Issue #15506: Use standard PKG_PROG_PKG_CONFIG autoconf macro in the configure + script. -- Issue #19544 and Issue #7457: Restore the read_pkg_file method to - distutils.dist.DistributionMetadata accidentally removed in the undo of - distutils2. +- Issue #22935: Allow the ssl module to be compiled if openssl doesn't support + SSL 3. -- Issue #16685: Added support for any bytes-like objects in the audioop module. - Removed support for strings. +- Issue #22592: Drop support of the Borland C compiler to build Python. The + distutils module still supports it to build extensions. -- Issue #7171: Add Windows implementation of ``inet_ntop`` and ``inet_pton`` - to socket module. Patch by Atsuo Ishimoto. +- Issue #22591: Drop support of MS-DOS, especially of the DJGPP compiler + (MS-DOS port of GCC). -- Issue #19261: Added support for writing 24-bit samples in the sunau module. +- Issue #16537: Check whether self.extensions is empty in setup.py. Patch by + Jonathan Hosmer. -- Issue #1097797: Added CP273 encoding, used on IBM mainframes in - Germany and Austria. Mapping provided by Michael Bierenfeld. +- Issue #22359: Remove incorrect uses of recursive make. Patch by Jonas + Wagner. -- Issue #1575020: Fixed support of 24-bit wave files on big-endian platforms. +- Issue #21958: Define HAVE_ROUND when building with Visual Studio 2013 and + above. Patch by Zachary Turner. -- Issue #19378: Fixed a number of cases in the dis module where the new - "file" parameter was not being honoured correctly +- Issue #18093: the programs that embed the CPython runtime are now in a + separate "Programs" directory, rather than being kept in the Modules + directory. -- Issue #19378: Removed the "dis.Bytecode.show_info" method +- Issue #15759: "make suspicious", "make linkcheck" and "make doctest" in Doc/ + now display special message when and only when there are failures. -- Issue #19378: Renamed the "dis.Bytecode.display_code" method to - "dis.Bytecode.dis" and converted it to returning a string rather than - printing output. +- Issue #21141: The Windows build process no longer attempts to find Perl, + instead relying on OpenSSL source being configured and ready to build. The + ``PCbuild\build_ssl.py`` script has been re-written and re-named to + ``PCbuild\prepare_ssl.py``, and takes care of configuring OpenSSL source + for both 32 and 64 bit platforms. OpenSSL sources obtained from + svn.python.org will always be pre-configured and ready to build. -- Issue #19378: the "line_offset" parameter in the new "dis.get_instructions" - API has been renamed to "first_line" (and the default value and usage - changed accordingly). This should reduce confusion with the more common use - of "offset" in the dis docs to refer to bytecode offsets. +- Issue #21037: Add a build option to enable AddressSanitizer support. -- Issue #18678: Corrected spwd struct member names in spwd module: - sp_nam->sp_namp, and sp_pwd->sp_pwdp. The old names are kept as extra - structseq members, for backward compatibility. +- Issue #19962: The Windows build process now creates "python.bat" in the + root of the source tree, which passes all arguments through to the most + recently built interpreter. -- Issue #6157: Fixed tkinter.Text.debug(). tkinter.Text.bbox() now raises - TypeError instead of TclError on wrong number of arguments. Original patch - by Guilherme Polo. +- Issue #21285: Refactor and fix curses configure check to always search + in a ncursesw directory. -- Issue #10197: Rework subprocess.get[status]output to use subprocess - functionality and thus to work on Windows. Patch by Nick Coghlan +- Issue #15234: For BerkelyDB and Sqlite, only add the found library and + include directories if they aren't already being searched. This avoids + an explicit runtime library dependency. -- Issue #6160: The bbox() method of tkinter.Spinbox now returns a tuple of - integers instead of a string. Based on patch by Guilherme Polo. +- Issue #17861: Tools/scripts/generate_opcode_h.py automatically regenerates + Include/opcode.h from Lib/opcode.py if the later gets any change. -- Issue #19403: contextlib.redirect_stdout is now reentrant +- Issue #20644: OS X installer build support for documentation build changes + in 3.4.1: assume externally supplied sphinx-build is available in /usr/bin. -- Issue #19286: Directories in ``package_data`` are no longer added to - the filelist, preventing failure outlined in the ticket. +- Issue #20022: Eliminate use of deprecated bundlebuilder in OS X builds. -- Issue #19480: HTMLParser now accepts all valid start-tag names as defined - by the HTML5 standard. +- Issue #15968: Incorporated Tcl, Tk, and Tix builds into the Windows build + solution. -- Issue #15114: The html.parser module now raises a DeprecationWarning when the - strict argument of HTMLParser or the HTMLParser.error method are used. +- Issue #17095: Fix Modules/Setup *shared* support. -- Issue #19410: Undo the special-casing removal of '' for - importlib.machinery.FileFinder. +- Issue #21811: Anticipated fixes to support OS X versions > 10.9. -- Issue #19424: Fix the warnings module to accept filename containing surrogate - characters. +- Issue #21166: Prevent possible segfaults and other random failures of + python --generate-posix-vars in pybuilddir.txt build target. -- Issue #19435: Fix directory traversal attack on CGIHttpRequestHandler. +- Issue #18096: Fix library order returned by python-config. -- Issue #19227: Remove pthread_atfork() handler. The handler was added to - solve #18747 but has caused issues. +- Issue #17219: Add library build dir for Python extension cross-builds. -- Issue #19420: Fix reference leak in module initalization code of - _hashopenssl.c +- Issue #22919: Windows build updated to support VC 14.0 (Visual Studio 2015), + which will be used for the official release. -- Issue #19329: Optimized compiling charsets in regular expressions. +- Issue #21236: Build _msi.pyd with cabinet.lib instead of fci.lib -- Issue #19227: Try to fix deadlocks caused by re-seeding then OpenSSL - pseudo-random number generator on fork(). +- Issue #17128: Use private version of OpenSSL for OS X 10.5+ installer. -- Issue #16037: HTTPMessage.readheaders() raises an HTTPException when more than - 100 headers are read. Adapted from patch by Jyrki Pulliainen. +C API +----- -- Issue #16040: CVE-2013-1752: nntplib: Limit maximum line lengths to 2048 to - prevent readline() calls from consuming too much memory. Patch by Jyrki - Pulliainen. +- Issue #14203: Remove obsolete support for view==NULL in PyBuffer_FillInfo(), + bytearray_getbuffer(), bytesiobuf_getbuffer() and array_buffer_getbuf(). + All functions now raise BufferError in that case. -- Issue #16041: CVE-2013-1752: poplib: Limit maximum line lengths to 2048 to - prevent readline() calls from consuming too much memory. Patch by Jyrki - Pulliainen. +- Issue #22445: PyBuffer_IsContiguous() now implements precise contiguity + tests, compatible with NumPy's NPY_RELAXED_STRIDES_CHECKING compilation + flag. Previously the function reported false negatives for corner cases. -- Issue #17997: Change behavior of ``ssl.match_hostname()`` to follow RFC 6125, - for security reasons. It now doesn't match multiple wildcards nor wildcards - inside IDN fragments. +- Issue #22079: PyType_Ready() now checks that statically allocated type has + no dynamically allocated bases. -- Issue #16039: CVE-2013-1752: Change use of readline in imaplib module to limit - line length. Patch by Emil Lind. +- Issue #22453: Removed non-documented macro PyObject_REPR(). -- Issue #19330: the unnecessary wrapper functions have been removed from the - implementations of the new contextlib.redirect_stdout and - contextlib.suppress context managers, which also ensures they provide - reasonable help() output on instances +- Issue #18395: Rename ``_Py_char2wchar()`` to :c:func:`Py_DecodeLocale`, + rename ``_Py_wchar2char()`` to :c:func:`Py_EncodeLocale`, and document + these functions. -- Issue #19393: Fix symtable.symtable function to not be confused when there are - functions or classes named "top". +- Issue #21233: Add new C functions: PyMem_RawCalloc(), PyMem_Calloc(), + PyObject_Calloc(), _PyObject_GC_Calloc(). bytes(int) is now using + ``calloc()`` instead of ``malloc()`` for large objects which is faster and + use less memory. -- Issue #18685: Restore re performance to pre-PEP 393 levels. +- Issue #20942: PyImport_ImportFrozenModuleObject() no longer sets __file__ to + match what importlib does; this affects _frozen_importlib as well as any + module loaded using imp.init_frozen(). -- Issue #19339: telnetlib module is now using time.monotonic() when available - to compute timeout. +Documentation +------------- -- Issue #19399: fix sporadic test_subprocess failure. +- Issue #19548: Update the codecs module documentation to better cover the + distinction between text encodings and other codecs, together with other + clarifications. Patch by Martin Panter. -- Issue #13234: Fix os.listdir to work with extended paths on Windows. - Patch by Santoso Wijaya. +- Issue #22394: Doc/Makefile now supports ``make venv PYTHON=../python`` to + create a venv for generating the documentation, e.g., + ``make html PYTHON=venv/bin/python3``. -- Issue #19375: The site module adding a "site-python" directory to sys.path, - if it exists, is now deprecated. +- Issue #21514: The documentation of the json module now refers to new JSON RFC + 7159 instead of obsoleted RFC 4627. -- Issue #19379: Lazily import linecache in the warnings module, to make - startup with warnings faster until a warning gets printed. +- Issue #21777: The binary sequence methods on bytes and bytearray are now + documented explicitly, rather than assuming users will be able to derive + the expected behaviour from the behaviour of the corresponding str methods. -- Issue #19288: Fixed the "in" operator of dbm.gnu databases for string - argument. Original patch by Arfrever Frehtes Taifersar Arahesis. +- Issue #6916: undocument deprecated asynchat.fifo class. -- Issue #19287: Fixed the "in" operator of dbm.ndbm databases for string - argument. Original patch by Arfrever Frehtes Taifersar Arahesis. +- Issue #17386: Expanded functionality of the ``Doc/make.bat`` script to make + it much more comparable to ``Doc/Makefile``. -- Issue #19327: Fixed the working of regular expressions with too big charset. +- Issue #21312: Update the thread_foobar.h template file to include newer + threading APIs. Patch by Jack McCracken. -- Issue #17400: New 'is_global' attribute for ipaddress to tell if an address - is allocated by IANA for global or private networks. +- Issue #21043: Remove the recommendation for specific CA organizations and to + mention the ability to load the OS certificates. -- Issue #19350: Increasing the test coverage of macurl2path. Patch by Colin - Williams. +- Issue #20765: Add missing documentation for PurePath.with_name() and + PurePath.with_suffix(). -- Issue #19365: Optimized the parsing of long replacement string in re.sub*() - functions. +- Issue #19407: New package installation and distribution guides based on + the Python Packaging Authority tools. Existing guides have been retained + as legacy links from the distutils docs, as they still contain some + required reference material for tool developers that isn't recorded + anywhere else. -- Issue #19352: Fix unittest discovery when a module can be reached - through several paths (e.g. under Debian/Ubuntu with virtualenv). +- Issue #19697: Document cases where __main__.__spec__ is None. -- Issue #15207: Fix mimetypes to read from correct part of Windows registry - Original patch by Dave Chambers +Tests +----- -- Issue #16595: Add prlimit() to resource module. +- Issue #18982: Add tests for CLI of the calendar module. -- Issue #19324: Expose Linux-specific constants in resource module. +- Issue #19548: Added some additional checks to test_codecs to ensure that + statements in the updated documentation remain accurate. Patch by Martin + Panter. -- Load SSL's error strings in hashlib. +- Issue #22838: All test_re tests now work with unittest test discovery. -- Issue #18527: Upgrade internal copy of zlib to 1.2.8. +- Issue #22173: Update lib2to3 tests to use unittest test discovery. -- Issue #19274: Add a filterfunc parameter to PyZipFile.writepy. +- Issue #16000: Convert test_curses to use unittest. -- Issue #8964: fix platform._sys_version to handle IronPython 2.6+. - Patch by Martin Matusiak. +- Issue #21456: Skip two tests in test_urllib2net.py if _ssl module not + present. Patch by Remi Pointel. -- Issue #19413: Restore pre-3.3 reload() semantics of re-finding modules. +- Issue #20746: Fix test_pdb to run in refleak mode (-R). Patch by Xavier + de Gaye. -- Issue #18958: Improve error message for json.load(s) while passing a string - that starts with a UTF-8 BOM. +- Issue #22060: test_ctypes has been somewhat cleaned up and simplified; it + now uses unittest test discovery to find its tests. -- Issue #19307: Improve error message for json.load(s) while passing objects - of the wrong type. +- Issue #22104: regrtest.py no longer holds a reference to the suite of tests + loaded from test modules that don't define test_main(). -- Issue #16038: CVE-2013-1752: ftplib: Limit amount of data read by - limiting the call to readline(). Original patch by Michał - Jastrzębski and Giampaolo Rodola. +- Issue #22111: Assorted cleanups in test_imaplib. Patch by Milan Oberkirch. -- Issue #17087: Improved the repr for regular expression match objects. +- Issue #22002: Added ``load_package_tests`` function to test.support and used + it to implement/augment test discovery in test_asyncio, test_email, + test_importlib, test_json, and test_tools. -Tests ------ +- Issue #21976: Fix test_ssl to accept LibreSSL version strings. Thanks + to William Orr. -- Issue #19664: test_userdict's repr test no longer depends on the order - of dict elements. +- Issue #21918: Converted test_tools from a module to a package containing + separate test files for each tested script. -- Issue #19440: Clean up test_capi by removing an unnecessary __future__ - import, converting from test_main to unittest.main, and running the - _testcapi module tests as subTests of a unittest TestCase method. +- Issue #9554: Use modern unittest features in test_argparse. Initial patch by + Denver Coneybeare and Radu Voicilas. -- Issue #19378: the main dis module tests are now run with both stdout - redirection *and* passing an explicit file parameter +- Issue #20155: Changed HTTP method names in failing tests in test_httpservers + so that packet filtering software (specifically Windows Base Filtering Engine) + does not interfere with the transaction semantics expected by the tests. -- Issue #19378: removed the not-actually-helpful assertInstructionMatches - and assertBytecodeExactlyMatches helpers from bytecode_helper +- Issue #19493: Refactored the ctypes test package to skip tests explicitly + rather than silently. -- Issue #18702: All skipped tests now reported as skipped. +- Issue #18492: All resources are now allowed when tests are not run by + regrtest.py. -- Issue #19439: interpreter embedding tests are now executed on Windows - (Patch by Zachary Ware) +- Issue #21634: Fix pystone micro-benchmark: use floor division instead of true + division to benchmark integers instead of floating point numbers. Set pystone + version to 1.2. Patch written by Lennart Regebro. -- Issue #19085: Added basic tests for all tkinter widget options. +- Issue #21605: Added tests for Tkinter images. -- Issue #19384: Fix test_py_compile for root user, patch by Claudiu Popa. +- Issue #21493: Added test for ntpath.expanduser(). Original patch by + Claudiu Popa. -Documentation -------------- +- Issue #19925: Added tests for the spwd module. Original patch by Vajrasky Kok. -- Issue #18326: Clarify that list.sort's arguments are keyword-only. Also, - attempt to reduce confusion in the glossary by not saying there are - different "types" of arguments and parameters. +- Issue #21522: Added Tkinter tests for Listbox.itemconfigure(), + PanedWindow.paneconfigure(), and Menu.entryconfigure(). -Build ------ +- Issue #17756: Fix test_code test when run from the installed location. -- Issue #19358: "make clinic" now runs the Argument Clinic preprocessor - over all CPython source files. +- Issue #17752: Fix distutils tests when run from the installed location. -- Update SQLite to 3.8.1, xz to 5.0.5, and Tcl/Tk to 8.6.1 on Windows. +- Issue #18604: Consolidated checks for GUI availability. All platforms now + at least check whether Tk can be instantiated when the GUI resource is + requested. -- Issue #16632: Enable DEP and ASLR on Windows. +- Issue #21275: Fix a socket test on KFreeBSD. -- Issue #17791: Drop PREFIX and EXEC_PREFIX definitions from PC/pyconfig.h +- Issue #21223: Pass test_site/test_startup_imports when some of the extensions + are built as builtins. -- Add workaround for VS 2010 nmake clean issue. VS 2010 doesn't set up PATH - for nmake.exe correctly. +- Issue #20635: Added tests for Tk geometry managers. -- Issue #19550: Implement Windows installer changes of PEP 453 (ensurepip). +- Add test case for freeze. -- Issue #19520: Fix compiler warning in the _sha3 module on 32bit Windows. +- Issue #20743: Fix a reference leak in test_tcl. -- Issue #19356: Avoid using a C variabled named "_self", it's a reserved - word in some C compilers. +- Issue #21097: Move test_namespace_pkgs into test_importlib. -- Issue #15792: Correct build options on Win64. Patch by Jeremy Kloth. +- Issue #21503: Use test_both() consistently in test_importlib. -- Issue #19373: Apply upstream change to Tk 8.5.15 fixing OS X 10.9 - screen refresh problem for OS X installer build. +- Issue #20939: Avoid various network test failures due to new + redirect of http://www.python.org/ to https://www.python.org: + use http://www.example.com instead. -- Issue #19649: On OS X, the same set of file names are now installed - in bin directories for all configurations: non-framework vs framework, - and single arch vs universal builds. pythonx.y-32 is now always - installed for 64-bit/32-bit universal builds. The obsolete and - undocumented pythonw* symlinks are no longer installed anywhere. +- Issue #20668: asyncio tests no longer rely on tests.txt file. + (Patch by Vajrasky Kok) -- Issue #19553: PEP 453 - "make install" and "make altinstall" now install or - upgrade pip by default, using the bundled pip provided by the new ensurepip - module. A new configure option, --with-ensurepip[=upgrade|install|no], is - available to override the default ensurepip "--upgrade" option. The option - can also be set with "make [alt]install ENSUREPIP=[upgrade|install\no]". +- Issue #21093: Prevent failures of ctypes test_macholib on OS X if a + copy of libz exists in $HOME/lib or /usr/local/lib. -- Issue #19551: PEP 453 - the OS X installer now installs pip by default. +- Issue #22770: Prevent some Tk segfaults on OS X when running gui tests. -- Update third-party libraries for OS X installers: xz 5.0.3 -> 5.0.5, - SQLite 3.7.13 -> 3.8.1 +- Issue #23211: Workaround test_logging failure on some OS X 10.6 systems. -- Issue #15663: Revert OS X installer built-in Tcl/Tk support for 3.4.0b1. - Some third-party projects, such as Matplotlib and PIL/Pillow, - depended on being able to build with Tcl and Tk frameworks in - /Library/Frameworks. +- Issue #23345: Prevent test_ssl failures with large OpenSSL patch level + values (like 0.9.8zc). Tools/Demos -----------