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Diffstat (limited to 'Misc/NEWS')
| -rw-r--r-- | Misc/NEWS | 2382 |
1 files changed, 1715 insertions, 667 deletions
@@ -2,48 +2,56 @@ Python News +++++++++++ -What's New in Python 3.2.4 -========================== +What's New in Python 3.3.0 Alpha 3? +=================================== -*Release date: XX-XX-XXXX* +*Release date: XXXX-XX-XX* Core and Builtins ----------------- +- Issue #14098: New functions PyErr_GetExcInfo and PyErr_SetExcInfo. + Patch by Stefan Behnel. + +- Issue #14385: It is now possible to use a custom type for the __builtins__ + namespace, instead of a dict. It can be used for sandboxing for example. + Raise also a NameError instead of ImportError if __build_class__ name if not + found in __builtins__. + +- Issue #12599: Be more strict in accepting None compared to a false-like + object for importlib.util.module_for_loader and + importlib.machinery.PathFinder. + - Issue #14612: Fix jumping around with blocks by setting f_lineno. +- Issue #14592: Attempting a relative import w/o __package__ or __name__ set in + globals raises a KeyError. + - Issue #14607: Fix keyword-only arguments which started with ``__``. +- Issue #10854: The ImportError raised when an extension module on Windows + fails to import now uses the new path and name attributes from + Issue #1559549. + - Issue #13889: Check and (if necessary) set FPU control word before calling any of the dtoa.c string <-> float conversion functions, on MSVC builds of Python. This fixes issues when embedding Python in a Delphi app. +- __import__() now matches PEP 328 and documentation by defaulting 'index' to 0 + instead of -1 and removing support for negative values. + +- Issue #2377: Make importlib the implementation of __import__(). + +- Issue #1559549: ImportError now has 'name' and 'path' attributes that are set + using keyword arguments to its constructor. They are currently not set by + import as they are meant for use by importlib. + - Issue #14474: Save and restore exception state in thread.start_new_thread() while writing error message if the thread leaves a unhandled exception. - Issue #13019: Fix potential reference leaks in bytearray.extend(). Patch by Suman Saha. -- Issue #14378: Fix compiling ast.ImportFrom nodes with a "__future__" string as - the module name that was not interned. - -- Issue #14331: Use significantly less stack space when importing modules by - allocating path buffers on the heap instead of the stack. - -- Issue #14334: Prevent in a segfault in type.__getattribute__ when it was not - passed strings. - -- Issue #1469629: Allow cycles through an object's __dict__ slot to be - collected. (For example if ``x.__dict__ is x``). - -- Issue #14172: Fix reference leak when marshalling a buffer-like object - (other than a bytes object). - -- Issue #13521: dict.setdefault() now does only one lookup for the given key, - making it "atomic" for many purposes. Patch by Filip Gruszczyński. - -- Issue #14471: Fix a possible buffer overrun in the winreg module. - Library ------- @@ -53,203 +61,371 @@ Library - Issue #14308: Fix an exception when a "dummy" thread is in the threading module's active list after a fork(). +- Issue #11750: The Windows API functions scattered in the _subprocess and + _multiprocessing.win32 modules now live in a single module "_winapi". + Patch by sbt. + +- Issue #14087: multiprocessing: add Condition.wait_for(). Patch by sbt. + - Issue #14538: HTMLParser can now parse correctly start tags that contain a bare '/'. - Issue #14452: SysLogHandler no longer inserts a UTF-8 BOM into the message. +- Issue #14386: Expose the dict_proxy internal type as types.MappingProxyType. + +- Issue #13959: Make imp.reload() always use a module's __loader__ to perform + the reload. + +- Issue #13959: Add imp.py and rename the built-in module to _imp, allowing for + re-implementing parts of the module in pure Python. + - Issue #13496: Fix potential overflow in bisect.bisect algorithm when applied to a collection of size > sys.maxsize / 2. +- Have importlib take advantage of ImportError's new 'name' and 'path' + attributes. + - Issue #14399: zipfile now recognizes that the archive has been modified even if only the comment is changed. In addition, the TypeError that results from trying to set a non-binary value as a comment is now now raised at the time the comment is set rather than at the time the zipfile is written. +- trace.CoverageResults.is_ignored_filename() now ignores any name that starts + with "<" and ends with ">" instead of special-casing "<string>" and + "<doctest ". + +- Issue #12537: The mailbox module no longer depends on knowledge of internal + implementation details of the email package Message object. + - Issue #7978: socketserver now restarts the select() call when EINTR is returned. This avoids crashing the server loop when a signal is received. Patch by Jerzy Kozera. +- Issue #14522: Avoid duplicating socket handles in multiprocessing.connection. + Patch by sbt. + +- Don't Py_DECREF NULL variable in io.IncrementalNewlineDecoder. + +- Issue #8515: Set __file__ when run file in IDLE. + Initial patch by Bruce Frederiksen. + - Issue #14496: Fix wrong name in idlelib/tabbedpages.py. Patch by Popa Claudiu. +- Issue #3033: Add displayof parameter to tkinter font. Patch by Guilherme Polo. + - Issue #14482: Raise a ValueError, not a NameError, when trying to create a multiprocessing Client or Listener with an AF_UNIX type address under Windows. Patch by Popa Claudiu. +- Issue #802310: Generate always unique tkinter font names if not directly passed. + - Issue #14151: Raise a ValueError, not a NameError, when trying to create a multiprocessing Client or Listener with an AF_PIPE type address under non-Windows platforms. Patch by Popa Claudiu. +- Issue #14493: Use gvfs-open or xdg-open in webbrowser. + +Tests +----- + +- Issue #14032: Fix incorrect variable name in test_cmd_line_script debugging + message (Patch by Jason Yeo) + +- Issue #14589: Update certificate chain for sha256.tbs-internet.com, fixing + a test failure in test_ssl. + +- Issue #14355: Regrtest now supports the standard unittest test loading, and + will use it if a test file contains no `test_main` method. + +Tools / Demos +------------- + +- Issue #13165: stringbench is now available in the Tools/stringbench folder. + It used to live in its own SVN project. + + +What's New in Python 3.3.0 Alpha 2? +=================================== + +*Release date: 01-Apr-2012* + +Core and Builtins +----------------- + +- Issue #1683368: object.__new__ and object.__init__ raise a TypeError if they + are passed arguments and their complementary method is not overridden. + +- Issue #14378: Fix compiling ast.ImportFrom nodes with a "__future__" string as + the module name that was not interned. + +- Issue #14331: Use significantly less stack space when importing modules by + allocating path buffers on the heap instead of the stack. + +- Issue #14334: Prevent in a segfault in type.__getattribute__ when it was not + passed strings. + +- Issue #1469629: Allow cycles through an object's __dict__ slot to be + collected. (For example if ``x.__dict__ is x``). + +- Issue #14205: dict lookup raises a RuntimeError if the dict is modified + during a lookup. + +- Issue #14220: When a generator is delegating to another iterator with the + yield from syntax, it needs to have its ``gi_running`` flag set to True. + +- Issue #14435: Remove dedicated block allocator from floatobject.c and rely + on the PyObject_Malloc() api like all other objects. + +- Issue #14471: Fix a possible buffer overrun in the winreg module. + +- Issue #14288: Allow the serialization of builtin iterators + +Library +------- + +- Issue #14300: Under Windows, sockets created using socket.dup() now allow + overlapped I/O. Patch by sbt. + - Issue #13872: socket.detach() now marks the socket closed (as mirrored in the socket repr()). Patch by Matt Joiner. - Issue #14406: Fix a race condition when using ``concurrent.futures.wait( return_when=ALL_COMPLETED)``. Patch by Matt Joiner. +- Issue #5136: deprecate old, unused functions from tkinter. + - Issue #14409: IDLE now properly executes commands in the Shell window when it cannot read the normal config files on startup and has to use the built-in default key bindings. There was previously a bug in one of the defaults. +- Issue #14416: syslog now defines the LOG_ODELAY and LOG_AUTHPRIV constants + if they are defined in <syslog.h>. + +- IDLE can be launched as python -m idlelib + +- Issue #14295: Add unittest.mock + +- Issue #7652: Add --with-system-libmpdec option to configure for linking + the _decimal module against an installed libmpdec. + +- Issue #14380: MIMEText now defaults to utf-8 when passed non-ASCII unicode + with no charset specified. + - Issue #10340: asyncore - properly handle EINVAL in dispatcher constructor on OSX; avoid to call handle_connect in case of a disconnected socket which was not meant to connect. +- Issue #14204: The ssl module now has support for the Next Protocol + Negotiation extension, if available in the underlying OpenSSL library. + Patch by Colin Marc. + +- Issue #3035: Unused functions from tkinter are marked as pending deprecated. + - Issue #12757: Fix the skipping of doctests when python is run with -OO so that it works in unittest's verbose mode as well as non-verbose mode. +- Issue #7652: Integrate the decimal floating point libmpdec library to speed + up the decimal module. Performance gains of the new C implementation are + between 10x and 100x, depending on the application. + - Issue #3573: IDLE hangs when passing invalid command line args (directory(ies) instead of file(s)) (Patch by Guilherme Polo) +- Issue #14269: SMTPD now conforms to the RFC and requires a HELO command + before MAIL, RCPT, or DATA. + - Issue #13694: asynchronous connect in asyncore.dispatcher does not set addr attribute. +- Issue #14344: fixed the repr of email.policy objects. + - Issue #11686: Added missing entries to email package __all__ lists (mostly the new Bytes classes). +- Issue #14335: multiprocessing's custom Pickler subclass now inherits from + the C-accelerated implementation. Patch by sbt. + - Issue #10484: Fix the CGIHTTPServer's PATH_INFO handling problem. - Issue #11199: Fix the with urllib which hangs on particular ftp urls. -- Issue #14062: Header objects now correctly respect the 'linesep' setting - when processed by BytesParser (which smtplib.SMTP.send_message uses). +- Improve the memory utilization and speed of functools.lru_cache. + +- Issue #14222: Use the new time.steady() function instead of time.time() for + timeout in queue and threading modules to not be affected of system time + update. + +- Issue #13248: Remove lib2to3.pytree.Base.get_prefix/set_prefix. + +- Issue #14234: CVE-2012-0876: Randomize hashes of xml attributes in the hash + table internal to the pyexpat module's copy of the expat library to avoid a + denial of service due to hash collisions. Patch by David Malcolm with some + modifications by the expat project. + +- Issue #14200: Idle shell crash on printing non-BMP unicode character. + +- Issue #12818: format address no longer needlessly \ escapes ()s in names when + the name ends up being quoted. + +- Issue #14062: BytesGenerator now correctly folds Header objects, + including using linesep when folding. + +- Issue #13839: When invoked on the command-line, the pstats module now + accepts several filenames of profile stat files and merges them all. + Patch by Matt Joiner. - Issue #14291: Email now defaults to utf-8 for non-ASCII unicode headers instead of raising an error. This fixes a regression relative to 2.7. +- Issue #989712: Support using Tk without a mainloop. + - Issue #5219: Prevent event handler cascade in IDLE. +- Issue #3835: Refuse to use unthreaded Tcl in threaded Python. + +- Issue #2843: Add new Tk API to Tkinter. + - Issue #14184: Increase the default stack size for secondary threads on Mac OS X to avoid interpreter crashes when using threads on 10.7. -- Issue #10543: Fix unittest test discovery with Jython bytecode files. +- Issue #14180: datetime.date.fromtimestamp(), + datetime.datetime.fromtimestamp() and datetime.datetime.utcfromtimestamp() + now raise an OSError instead of ValueError if localtime() or gmtime() failed. -- Issue #14252: Fix subprocess.Popen.terminate() to not raise an error under - Windows when the child process has already exited. +- Issue #14180: time.ctime(), gmtime(), time.localtime(), + datetime.date.fromtimestamp(), datetime.datetime.fromtimestamp() and + datetime.datetime.utcfromtimestamp() now raises an OverflowError, instead of + a ValueError, if the timestamp does not fit in time_t. -- Issue #14195: An issue that caused weakref.WeakSet instances to incorrectly - return True for a WeakSet instance 'a' in both 'a < a' and 'a > a' has been - fixed. +- Issue #14180: datetime.datetime.fromtimestamp() and + datetime.datetime.utcfromtimestamp() now round microseconds towards zero + instead of rounding to nearest with ties going away from zero. -- Issue #14177: marshal.loads() now raises TypeError when given an unicode - string. Patch by Guilherme Gonçalves. +- Issue #10543: Fix unittest test discovery with Jython bytecode files. -- Issue #14159: Fix the len() of weak containers (WeakSet, WeakKeyDictionary, - WeakValueDictionary) to return a better approximation when some objects - are dead or dying. Moreover, the implementation is now O(1) rather than - O(n). +- Issue #1178863: Separate initialisation from setting when initializing + Tkinter.Variables; harmonize exceptions to ValueError; only delete variables + that have not been deleted; assert that variable names are strings. -- Issue #13125: Silence spurious test_lib2to3 output when in non-verbose mode. - Patch by Mikhail Novikov. +- Issue #14104: Implement time.monotonic() on Mac OS X, patch written by + Nicholas Riley. -- Issue #13447: Add a test file to host regression tests for bugs in the - scripts found in the Tools directory. +- Issue #13394: the aifc module now uses warnings.warn() to signal warnings. -- Issue #8033: sqlite3: Fix 64-bit integer handling in user functions - on 32-bit architectures. Initial patch by Philippe Devalkeneer. +- Issue #14252: Fix subprocess.Popen.terminate() to not raise an error under + Windows when the child process has already exited. -Extension Modules ------------------ +- Issue #14223: curses.addch() is no more limited to the range 0-255 when the + Python curses is not linked to libncursesw. It was a regression introduced + in Python 3.3a1. -- Issue #14212: The re module didn't retain a reference to buffers it was - scanning, resulting in segfaults. +- Issue #14168: Check for presence of Element._attrs in minidom before + accessing it. -Tests ------ +- Issue #12328: Fix multiprocessing's use of overlapped I/O on Windows. + Also, add a multiprocessing.connection.wait(rlist, timeout=None) function + for polling multiple objects at once. Patch by sbt. -- Issue #14032: Fix incorrect variable name in test_cmd_line_script debugging - message (Patch by Jason Yeo) +- Issue #14007: Accept incomplete TreeBuilder objects (missing start, end, + data or close method) for the Python implementation as well. + Drop the no-op TreeBuilder().xml() method from the C implementation. -- Issue #14589: Update certificate chain for sha256.tbs-internet.com, fixing - a test failure in test_ssl. +- Issue #14210: pdb now has tab-completion not only for command names, but + also for their arguments, wherever possible. + +- Issue #14310: Sockets can now be with other processes on Windows using + the api socket.socket.share() and socket.fromshare(). + +- Issue #10576: The gc module now has a 'callbacks' member that will get + called when garbage collection takes place. Build ----- - Issue #14557: Fix extensions build on HP-UX. Patch by Adi Roiban. -- Issue #14437: Fix building the _io module under Cygwin. - - Issue #14387: Do not include accu.h from Python.h. - Issue #14359: Only use O_CLOEXEC in _posixmodule.c if it is defined. Based on patch from Hervé Coatanhay. -Documentation -------------- - -- Issue #8799: Fix and improve the threading.Condition documentation. +- Issue #14321: Do not run pgen during the build if files are up to date. +- Issue #14324: Fix configure tests for cross builds. -What's New in Python 3.2.3 release candidate 2? -=============================================== - -*Release date: XX-Mar-2012* - -Library -------- - -- Issue #6884: Fix long-standing bugs with MANIFEST.in parsing in distutils - on Windows. +- Issue #14327: Call AC_CANONICAL_HOST in configure.ac and check in + config.{guess,sub}. Don't use uname calls for cross builds. Extension Modules ----------------- -- Issue #14234: CVE-2012-0876: Randomize hashes of xml attributes in the hash - table internal to the pyexpat module's copy of the expat library to avoid a - denial of service due to hash collisions. Patch by David Malcolm with some - modifications by the expat project. - - -What's New in Python 3.2.3? -=========================== +- Issue #14212: The re module didn't retain a reference to buffers it was + scanning, resulting in segfaults. -*Release date: 10-Apr-2012* +- Issue #14259: The finditer() method of re objects did not take any + keyword arguments, contrary to the documentation. -Build +Tests ----- -- Issue #14387: Work around a problem building extension modules under Windows - by undefining ``small`` before use in the Python headers. +- Issue #14442: Add missing errno import in test_smtplib. +- Issue #8315: (partial fix) python -m unittest test.test_email now works. -What's New in Python 3.2.3 release candidate 2? -=============================================== -*Release date: 18-Mar-2012* - -Library -------- +What's New in Python 3.3.0 Alpha 1? +=================================== -- Issue #6884: Fix long-standing bugs with MANIFEST.in parsing in distutils - on Windows. +*Release date: 05-Mar-2012* -Extension Modules +Core and Builtins ----------------- -- Issue #14234: CVE-2012-0876: Randomize hashes of xml attributes in the hash - table internal to the pyexpat module's copy of the expat library to avoid a - denial of service due to hash collisions. Patch by David Malcolm with some - modifications by the expat project. +- Issue #14172: Fix reference leak when marshalling a buffer-like object + (other than a bytes object). +- Issue #13521: dict.setdefault() now does only one lookup for the given key, + making it "atomic" for many purposes. Patch by Filip Gruszczyński. -What's New in Python 3.2.3 release candidate 1? -=============================================== +- PEP 409, Issue #6210: "raise X from None" is now supported as a means of + suppressing the display of the chained exception context. The chained + context still remains available as the __context__ attribute. -*Release date: 24-Feb-2012* +- Issue #10181: New memoryview implementation fixes multiple ownership + and lifetime issues of dynamically allocated Py_buffer members (#9990) + as well as crashes (#8305, #7433). Many new features have been added + (See whatsnew/3.3), and the documentation has been updated extensively. + The ndarray test object from _testbuffer.c implements all aspects of + PEP-3118, so further development towards the complete implementation + of the PEP can proceed in a test-driven manner. -Core and Builtins ------------------ + Thanks to Nick Coghlan, Antoine Pitrou and Pauli Virtanen for review + and many ideas. -- Issue #13703: oCERT-2011-003: add -R command-line option and PYTHONHASHSEED - environment variable, to provide an opt-in way to protect against denial of - service attacks due to hash collisions within the dict and set types. Patch - by David Malcolm, based on work by Victor Stinner. +- Issue #12834: Fix incorrect results of memoryview.tobytes() for + non-contiguous arrays. + +- Issue #5231: Introduce memoryview.cast() method that allows changing + format and shape without making a copy of the underlying memory. - Issue #14084: Fix a file descriptor leak when importing a module with a bad encoding. +- Upgrade Unicode data to Unicode 6.1. + +- Issue #14040: Remove rarely used file name suffixes for C extensions + (under POSIX mainly). + +- Issue #14051: Allow arbitrary attributes to be set of classmethod and + staticmethod. + +- Issue #13703: oCERT-2011-003: Randomize hashes of str and bytes to protect + against denial of service attacks due to hash collisions within the dict and + set types. Patch by David Malcolm, based on work by Victor Stinner. + - Issue #13020: Fix a reference leak when allocating a structsequence object fails. Patch by Suman Saha. @@ -258,6 +434,9 @@ Core and Builtins - Issue #11235: Fix OverflowError when trying to import a source file whose modification time doesn't fit in a 32-bit timestamp. +- Issue #12705: A SyntaxError exception is now raised when attempting to + compile multiple statements as a single interactive statement. + - Fix the builtin module initialization code to store the init function for future reinitialization. @@ -269,6 +448,37 @@ Core and Builtins - Issue #13629: Renumber the tokens in token.h so that they match the indexes into _PyParser_TokenNames. +- Issue #13752: Add a casefold() method to str. + +- Issue #13761: Add a "flush" keyword argument to the print() function, + used to ensure flushing the output stream. + +- Issue #13645: pyc files now contain the size of the corresponding source + code, to avoid timestamp collisions (especially on filesystems with a low + timestamp resolution) when checking for freshness of the bytecode. + +- PEP 380, Issue #11682: Add "yield from <x>" to support easy delegation to + subgenerators (initial patch by Greg Ewing, integration into 3.3 by + Renaud Blanch, Ryan Kelly, Zbigniew Jędrzejewski-Szmek and Nick Coghlan) + +- Issue #13748: Raw bytes literals can now be written with the ``rb`` prefix + as well as ``br``. + +- Issue #12736: Use full unicode case mappings for upper, lower, and title case. + +- Issue #12760: Add a create mode to open(). Patch by David Townshend. + +- Issue #13738: Simplify implementation of bytes.lower() and bytes.upper(). + +- Issue #13577: Built-in methods and functions now have a __qualname__. + Patch by sbt. + +- Issue #6695: Full garbage collection runs now clear the freelist of set + objects. Initial patch by Matthias Troffaes. + +- Fix OSError.__init__ and OSError.__new__ so that each of them can be + overriden and take additional arguments (followup to issue #12555). + - Fix the fix for issue #12149: it was incorrect, although it had the side effect of appearing to resolve the issue. Thanks to Mark Shannon for noticing. @@ -279,27 +489,69 @@ Core and Builtins - Issue #11147: Fix an unused argument in _Py_ANNOTATE_MEMORY_ORDER. (Fix given by Campbell Barton). +- Issue #13503: Use a more efficient reduction format for bytearrays with + pickle protocol >= 3. The old reduction format is kept with older protocols + in order to allow unpickling under Python 2. Patch by Irmen de Jong. + - Issue #7111: Python can now be run without a stdin, stdout or stderr stream. It was already the case with Python 2. However, the corresponding sys module entries are now set to None (instead of an unusable file object). +- Issue #11849: Ensure that free()d memory arenas are really released + on POSIX systems supporting anonymous memory mappings. Patch by + Charles-François Natali. + +- Issue #13452: PyUnicode_EncodeDecimal() doesn't support error handlers + different than "strict" anymore. The caller was unable to compute the + size of the output buffer: it depends on the error handler. + +- PEP 3155 / issue #13448: Qualified name for classes and functions. + - Issue #13436: Fix a bogus error message when an AST object was passed an invalid integer value. +- Issue #13411: memoryview objects are now hashable when the underlying + object is hashable. + - Issue #13338: Handle all enumerations in _Py_ANNOTATE_MEMORY_ORDER to allow compiling extension modules with -Wswitch-enum on gcc. Initial patch by Floris Bruynooghe. +- Issue #10227: Add an allocation cache for a single slice object. Patch by + Stefan Behnel. + +- Issue #13393: BufferedReader.read1() now asks the full requested size to + the raw stream instead of limiting itself to the buffer size. + +- Issue #13392: Writing a pyc file should now be atomic under Windows as well. + - Issue #13333: The UTF-7 decoder now accepts lone surrogates (the encoder already accepts them). +- Issue #13389: Full garbage collection passes now clear the freelists for + list and dict objects. They already cleared other freelists in the + interpreter. + +- Issue #13327: Remove the need for an explicit None as the second argument + to os.utime, os.lutimes, os.futimes, os.futimens, os.futimesat, in + order to update to the current time. Also added keyword argument + handling to os.utimensat in order to remove the need for explicit None. + +- Issue #13350: Simplify some C code by replacing most usages of + PyUnicode_Format by PyUnicode_FromFormat. + - Issue #13342: input() used to ignore sys.stdin's and sys.stdout's unicode error handler in interactive mode (when calling into PyOS_Readline()). +- Issue #9896: Add start, stop, and step attributes to range objects. + - Issue #13343: Fix a SystemError when a lambda expression uses a global variable in the default value of a keyword-only argument: (lambda *, arg=GLOBAL_NAME: None) +- Issue #12797: Added custom opener parameter to builtin open() and + FileIO.open(). + - Issue #10519: Avoid unnecessary recursive function calls in setobject.c. @@ -308,21 +560,43 @@ Core and Builtins - Issue #13018: Fix reference leaks in error paths in dictobject.c. Patch by Suman Saha. +- Issue #13201: Define '==' and '!=' to compare range objects based on + the sequence of values they define (instead of comparing based on + object identity). + - Issue #1294232: In a few cases involving metaclass inheritance, the interpreter would sometimes invoke the wrong metaclass when building a new class object. These cases now behave correctly. Patch by Daniel Urban. +- Issue #12753: Add support for Unicode name aliases and named sequences. + Both :func:`unicodedata.lookup()` and '\N{...}' now resolve aliases, + and :func:`unicodedata.lookup()` resolves named sequences too. + +- Issue #12170: The count(), find(), rfind(), index() and rindex() methods + of bytes and bytearray objects now accept an integer between 0 and 255 + as their first argument. Patch by Petri Lehtinen. + - Issue #12604: VTRACE macro expanded to no-op in _sre.c to avoid compiler warnings. Patch by Josh Triplett and Petri Lehtinen. +- Issue #12281: Rewrite the MBCS codec to handle correctly replace and ignore + error handlers on all Windows versions. The MBCS codec is now supporting all + error handlers, instead of only replace to encode and ignore to decode. + - Issue #13188: When called without an explicit traceback argument, generator.throw() now gets the traceback from the passed exception's ``__traceback__`` attribute. Patch by Petri Lehtinen. +- Issue #13146: Writing a pyc file is now atomic under POSIX. + - Issue #7833: Extension modules built using distutils on Windows will no longer include a "manifest" to prevent them failing at import time in some embedded situations. +- PEP 3151 / issue #12555: reworking the OS and IO exception hierarchy. + +- Add internal API for static strings (_Py_identifier et al.). + - Issue #13063: the Windows error ERROR_NO_DATA (numbered 232 and described as "The pipe is being closed") is now mapped to POSIX errno EPIPE (previously EINVAL). @@ -330,6 +604,16 @@ Core and Builtins - Issue #12911: Fix memory consumption when calculating the repr() of huge tuples or lists. +- PEP 393: flexible string representation. Thanks to Torsten Becker for the + initial implementation, and Victor Stinner for various bug fixes. + +- Issue #14081: The 'sep' and 'maxsplit' parameter to str.split, bytes.split, + and bytearray.split may now be passed as keyword arguments. + +- Issue #13012: The 'keepends' parameter to str.splitlines may now be passed + as a keyword argument: "my_string.splitlines(keepends=True)". The same + change also applies to bytes.splitlines and bytearray.splitlines. + - Issue #7732: Don't open a directory as a file anymore while importing a module. Ignore the direcotry if its name matchs the module name (e.g. "__init__.py") and raise a ImportError instead. @@ -341,6 +625,9 @@ Core and Builtins list_repeat (listobject.c) and islice_next (itertoolsmodule.c). These bugs caused test failures with recent versions of Clang. +- Issue #12904: os.utime, os.futimes, os.lutimes, and os.futimesat now write + atime and mtime with nanosecond precision on modern POSIX platforms. + - Issue #12802: the Windows error ERROR_DIRECTORY (numbered 267) is now mapped to POSIX errno ENOTDIR (previously EINVAL). @@ -350,37 +637,329 @@ Core and Builtins - Issue #12791: Break reference cycles early when a generator exits with an exception. +- Issue #12773: Make __doc__ mutable on user-defined classes. + +- Issue #12766: Raise a ValueError when creating a class with a class variable + that conflicts with a name in __slots__. + - Issue #12266: Fix str.capitalize() to correctly uppercase/lowercase titlecased and cased non-letter characters. +- Issue #12732: In narrow unicode builds, allow Unicode identifiers which fall + outside the BMP. + +- Issue #12575: Validate user-generated AST before it is compiled. + +- Make type(None), type(Ellipsis), and type(NotImplemented) callable. They + return the respective singleton instances. + +- Forbid summing bytes with sum(). + +- Verify the types of AST strings and identifiers provided by the user before + compiling them. + +- Issue #12647: The None object now has a __bool__() method that returns False. + Formerly, bool(None) returned False only because of special case logic + in PyObject_IsTrue(). + +- Issue #12579: str.format_map() now raises a ValueError if used on a + format string that contains positional fields. Initial patch by + Julian Berman. + +- Issue #10271: Allow warnings.showwarning() be any callable. + +- Issue #11627: Fix segfault when __new__ on a exception returns a + non-exception class. + +- Issue #12149: Update the method cache after a type's dictionary gets + cleared by the garbage collector. This fixes a segfault when an instance + and its type get caught in a reference cycle, and the instance's + deallocator calls one of the methods on the type (e.g. when subclassing + IOBase). Diagnosis and patch by Davide Rizzo. + +- Issue #9611, #9015: FileIO.read() clamps the length to INT_MAX on Windows. + +- Issue #9642: Uniformize the tests on the availability of the mbcs codec, add + a new HAVE_MBCS define. + +- Issue #9642: Fix filesystem encoding initialization: use the ANSI code page + on Windows if the mbcs codec is not available, and fail with a fatal error if + we cannot get the locale encoding (if nl_langinfo(CODESET) is not available) + instead of using UTF-8. + +- When a generator yields, do not retain the caller's exception state on the + generator. + +- Issue #12475: Prevent generators from leaking their exception state into the + caller's frame as they return for the last time. + +- Issue #12291: You can now load multiple marshalled objects from a stream, + with other data interleaved between marshalled objects. + +- Issue #12356: When required positional or keyword-only arguments are not + given, produce a informative error message which includes the name(s) of the + missing arguments. + +- Issue #12370: Fix super with no arguments when __class__ is overriden in the + class body. + +- Issue #12084: os.stat on Windows now works properly with relative symbolic + links when called from any directory. + +- Loosen type restrictions on the __dir__ method. __dir__ can now return any + sequence, which will be converted to a list and sorted by dir(). + +- Issue #12265: Make error messages produced by passing an invalid set of + arguments to a function more informative. + +- Issue #12225: Still allow Python to build if Python is not in its hg repo or + mercurial is not installed. + +- Issue #1195: my_fgets() now always clears errors before calling fgets(). Fix + the following case: sys.stdin.read() stopped with CTRL+d (end of file), + raw_input() interrupted by CTRL+c. + +- Issue #12216: Allow unexpected EOF errors to happen on any line of the file. + +- Issue #12199: The TryExcept and TryFinally and AST nodes have been unified + into a Try node. + +- Issue #9670: Increase the default stack size for secondary threads on + Mac OS X and FreeBSD to reduce the chances of a crash instead of a + "maximum recursion depth" RuntimeError exception. + (patch by Ronald Oussoren) + +- Issue #12106: The use of the multiple-with shorthand syntax is now reflected + in the AST. + +- Issue #12190: Try to use the same filename object when compiling unmarshalling + a code objects in the same file. + +- Issue #12166: Move implementations of dir() specialized for various types into + the __dir__() methods of those types. + +- Issue #5715: In socketserver, close the server socket in the child process. + +- Correct lookup of __dir__ on objects. Among other things, this causes errors + besides AttributeError found on lookup to be propagated. + +- Issue #12060: Use sig_atomic_t type and volatile keyword in the signal + module. Patch written by Charles-François Natali. + +- Issue #1746656: Added the if_nameindex, if_indextoname, if_nametoindex + methods to the socket module. + +- Issue #12044: Fixed subprocess.Popen when used as a context manager to + wait for the process to end when exiting the context to avoid unintentionally + leaving zombie processes around. + +- Issue #1195: Fix input() if it is interrupted by CTRL+d and then CTRL+c, + clear the end-of-file indicator after CTRL+d. + +- Issue #1856: Avoid crashes and lockups when daemon threads run while the + interpreter is shutting down; instead, these threads are now killed when + they try to take the GIL. + +- Issue #9756: When calling a method descriptor or a slot wrapper descriptor, + the check of the object type doesn't read the __class__ attribute anymore. + Fix a crash if a class override its __class__ attribute (e.g. a proxy of the + str type). Patch written by Andreas Stührk. + +- Issue #10517: After fork(), reinitialize the TLS used by the PyGILState_* + APIs, to avoid a crash with the pthread implementation in RHEL 5. Patch + by Charles-François Natali. + +- Issue #10914: Initialize correctly the filesystem codec when creating a new + subinterpreter to fix a bootstrap issue with codecs implemented in Python, as + the ISO-8859-15 codec. + +- Issue #11918: OS/2 and VMS are no more supported because of the lack of + maintainer. + +- Issue #6780: fix starts/endswith error message to mention that tuples are + accepted too. + +- Issue #5057: fix a bug in the peepholer that led to non-portable pyc files + between narrow and wide builds while optimizing BINARY_SUBSCR on non-BMP + chars (e.g. "\U00012345"[0]). + +- Issue #11845: Fix typo in rangeobject.c that caused a crash in + compute_slice_indices. Patch by Daniel Urban. + +- Issue #5673: Added a `timeout` keyword argument to subprocess.Popen.wait, + subprocess.Popen.communicated, subprocess.call, subprocess.check_call, and + subprocess.check_output. If the blocking operation takes more than `timeout` + seconds, the `subprocess.TimeoutExpired` exception is raised. + +- Issue #11650: PyOS_StdioReadline() retries fgets() if it was interrupted + (EINTR), for example if the program is stopped with CTRL+z on Mac OS X. Patch + written by Charles-Francois Natali. + +- Issue #9319: Include the filename in "Non-UTF8 code ..." syntax error. + +- Issue #10785: Store the filename as Unicode in the Python parser. + +- Issue #11619: _PyImport_LoadDynamicModule() doesn't encode the path to bytes + on Windows. + +- Issue #10998: Remove mentions of -Q, sys.flags.division_warning and + Py_DivisionWarningFlag left over from Python 2. + +- Issue #11244: Remove an unnecessary peepholer check that was preventing + negative zeros from being constant-folded properly. + +- Issue #11395: io.FileIO().write() clamps the data length to 32,767 bytes on + Windows if the file is a TTY to workaround a Windows bug. The Windows console + returns an error (12: not enough space error) on writing into stdout if + stdout mode is binary and the length is greater than 66,000 bytes (or less, + depending on heap usage). + +- Issue #11320: fix bogus memory management in Modules/getpath.c, leading to + a possible crash when calling Py_SetPath(). + +- Issue #11432: A bug was introduced in subprocess.Popen on posix systems with + 3.2.0 where the stdout or stderr file descriptor being the same as the stdin + file descriptor would raise an exception. webbrowser.open would fail. fixed. + +- Issue #9856: Change object.__format__ with a non-empty format string + to be a DeprecationWarning. In 3.2 it was a PendingDeprecationWarning. + In 3.4 it will be a TypeError. + +- Issue #11244: The peephole optimizer is now able to constant-fold + arbitrarily complex expressions. This also fixes a 3.2 regression where + operations involving negative numbers were not constant-folded. + +- Issue #11450: Don't truncate hg version info in Py_GetBuildInfo() when + there are many tags (e.g. when using mq). Patch by Nadeem Vawda. + +- Issue #11335: Fixed a memory leak in list.sort when the key function + throws an exception. + +- Issue #8923: When a string is encoded to UTF-8 in strict mode, the result is + cached into the object. Examples: str.encode(), str.encode('utf-8'), + PyUnicode_AsUTF8String() and PyUnicode_AsEncodedString(unicode, "utf-8", + NULL). + +- Issue #10831: PyUnicode_FromFormat() supports %li, %lli and %zi formats. + +- Issue #10829: Refactor PyUnicode_FromFormat(), use the same function to parse + the format string in the 3 steps, fix crashs on invalid format strings. + +- Issue #13007: whichdb should recognize gdbm 1.9 magic numbers. + +- Issue #11246: Fix PyUnicode_FromFormat("%V") to decode the byte string from + UTF-8 (with replace error handler) instead of ISO-8859-1 (in strict mode). + Patch written by Ray Allen. + +- Issue #11286: Raise a ValueError from calling PyMemoryView_FromBuffer with + a buffer struct having a NULL data pointer. + +- Issue #11272: On Windows, input() strips '\r' (and not only '\n'), and + sys.stdin uses universal newline (replace '\r\n' by '\n'). + +- issue #11828: startswith and endswith don't accept None as slice index. + Patch by Torsten Becker. + +- Issue #10830: Fix PyUnicode_FromFormatV("%c") for non-BMP characters on + narrow build. + +- Issue #11168: Remove filename debug variable from PyEval_EvalFrameEx(). + It encoded the Unicode filename to UTF-8, but the encoding fails on + undecodable filename (on surrogate characters) which raises an unexpected + UnicodeEncodeError on recursion limit. + +- Issue #11187: Remove bootstrap code (use ASCII) of + PyUnicode_AsEncodedString(), it was replaced by a better fallback (use the + locale encoding) in PyUnicode_EncodeFSDefault(). + +- Check for NULL result in PyType_FromSpec. + +- Issue #10516: New copy() and clear() methods for lists and bytearrays. + +- Issue #11386: bytearray.pop() now throws IndexError when the bytearray is + empty, instead of OverflowError. + +- Issue #12380: The rjust, ljust and center methods of bytes and bytearray + now accept a bytearray argument. + Library ------- +- Issue #14195: An issue that caused weakref.WeakSet instances to incorrectly + return True for a WeakSet instance 'a' in both 'a < a' and 'a > a' has been + fixed. + +- Issue #14166: Pickler objects now have an optional ``dispatch_table`` + attribute which allows to set custom per-pickler reduction functions. + Patch by sbt. + +- Issue #14177: marshal.loads() now raises TypeError when given an unicode + string. Patch by Guilherme Gonçalves. + +- Issue #13550: Remove the debug machinery from the threading module: remove + verbose arguments from all threading classes and functions. + +- Issue #14159: Fix the len() of weak containers (WeakSet, WeakKeyDictionary, + WeakValueDictionary) to return a better approximation when some objects + are dead or dying. Moreover, the implementation is now O(1) rather than + O(n). + +- Issue #13125: Silence spurious test_lib2to3 output when in non-verbose mode. + Patch by Mikhail Novikov. + +- Issue #11841: Fix comparison bug with 'rc' versions in packaging.version. + Patch by Filip Gruszczyński. + +- Issue #13447: Add a test file to host regression tests for bugs in the + scripts found in the Tools directory. + +- Issue #6884: Fix long-standing bugs with MANIFEST.in parsing in distutils + on Windows. Also fixed in packaging. + +- Issue #8033: sqlite3: Fix 64-bit integer handling in user functions + on 32-bit architectures. Initial patch by Philippe Devalkeneer. + - HTMLParser is now able to handle slashes in the start tag. +- Issue #13641: Decoding functions in the base64 module now accept ASCII-only + unicode strings. Patch by Catalin Iacob. + +- Issue #14043: Speed up importlib's _FileFinder by at least 8x, and add a + new importlib.invalidate_caches() function. + - Issue #14001: CVE-2012-0845: xmlrpc: Fix an endless loop in SimpleXMLRPCServer upon malformed POST request. +- Issue #13961: Move importlib over to using os.replace() for atomic renaming. + +- Do away with ambiguous level values (as suggested by PEP 328) in + importlib.__import__() by raising ValueError when level < 0. + - Issue #2489: pty.spawn could consume 100% cpu when it encountered an EOF. - Issue #13014: Fix a possible reference leak in SSLSocket.getpeercert(). +- Issue #13777: Add PF_SYSTEM sockets on OS X. + Patch by Michael Goderbauer. + - Issue #13015: Fix a possible reference leak in defaultdict.__repr__. Patch by Suman Saha. -- Issue #1326113: distutils' build_ext command --libraries option now - correctly parses multiple values separated by whitespace or commas. +- Issue #1326113: distutils' and packaging's build_ext commands option now + correctly parses multiple values (separated by whitespace or commas) given + to their --libraries option. - Issue #10287: nntplib now queries the server's CAPABILITIES first before sending MODE READER, and only sends it if not already in READER mode. Patch by Hynek Schlawack. -- Issue #13979: A bug in ctypes.util.find_library that caused - the wrong library name to be returned has been fixed. - - Issue #13993: HTMLParser is now able to handle broken end tags when strict=False. +- Issue #13930: lib2to3 now supports writing converted output files to another + directory tree as well as copying unchanged files and altering the file + suffix. + - Issue #9750: Fix sqlite3.Connection.iterdump on tables and fields with a name that is a keyword or contains quotes. Patch by Marko Kohtala. @@ -408,6 +987,28 @@ Library - Issue #13960: HTMLParser is now able to handle broken comments when strict=False. +- Issue #13921: Undocument and clean up sqlite3.OptimizedUnicode, + which is obsolete in Python 3.x. It's now aliased to str for + backwards compatibility. + +- When '' is a path (e.g. in sys.path), make sure __file__ uses the current + working directory instead of '' in importlib. + +- Issue #13609: Add two functions to query the terminal size: + os.get_terminal_size (low level) and shutil.get_terminal_size (high level). + Patch by Zbigniew Jędrzejewski-Szmek. + +- Issue #13845: On Windows, time.time() now uses GetSystemTimeAsFileTime() + instead of ftime() to have a resolution of 100 ns instead of 1 ms (the clock + accuracy is between 0.5 ms and 15 ms). + +- Issue #13846: Add time.monotonic(), monotonic clock. + +- Issue #8184: multiprocessing: On Windows, don't set SO_REUSEADDR on + Connection sockets, and set FILE_FLAG_FIRST_PIPE_INSTANCE on named pipes, to + make sure two listeners can't bind to the same socket/pipe (or any existing + socket/pipe). + - Issue #9021: Add an introduction to the copy module documentation. - Issue #6005: Examples in the socket library documentation use sendall, where @@ -421,8 +1022,15 @@ Library - Issue #964437: Make IDLE help window non-modal. Patch by Guilherme Polo and Roger Serwy. +- Issue #13734: Add os.fwalk(), a directory walking function yielding file + descriptors. + - Issue #2945: Make the distutils upload command aware of bdist_rpm products. +- Issue #13712: pysetup create should not convert package_data to extra_files. + +- Issue #11805: package_data in setup.cfg should allow more than one value. + - Issue #13933: IDLE auto-complete did not work with some imported module, like hashlib. (Patch by Roger Serwy) @@ -433,6 +1041,9 @@ Library - Issue #13506: Add '' to path for IDLE Shell when started and restarted with Restart Shell. Original patches by Marco Scataglini and Roger Serwy. +- Issue #8828: Add new function os.replace(), for cross-platform renaming + with overwriting. + - Issue #13848: open() and the FileIO constructor now check for NUL characters in the file name. Patch by Hynek Schlawack. @@ -445,6 +1056,17 @@ Library - Issue #13885: CVE-2011-3389: the _ssl module would always disable the CBC IV attack countermeasure. +- Issue #13847: time.localtime() and time.gmtime() now raise an OSError instead + of ValueError on failure. time.ctime() and time.asctime() now raises an + OSError if localtime() failed. time.clock() now raises a RuntimeError if the + processor time used is not available or its value cannot be represented + +- Issue #13862: Fix spurious failure in test_zlib due to runtime/compile time + minor versions not matching. + +- Issue #12804: Fix test_socket and test_urllib2net failures when running tests + on a system without internet access. + - Issue #13772: In os.symlink() under Windows, do not try to guess the link target's type (file or directory). The detection was buggy and made the call non-atomic (therefore prone to race conditions). @@ -460,6 +1082,11 @@ Library - Issue #13803: Under Solaris, distutils doesn't include bitness in the directory name. +- Issue #10278: Add time.wallclock() function, monotonic clock. + +- Issue #13809: Fix regression where bz2 module wouldn't work when threads are + disabled. Original patch by Amaury Forgeot d'Arc. + - Issue #13589: Fix some serialization primitives in the aifc module. Patch by Oleg Plakhotnyuk. @@ -476,6 +1103,11 @@ Library - Issue #13502: threading: Fix a race condition in Event.wait() that made it return False when the event was set and cleared right after. +- Issue #9993: When the source and destination are on different filesystems, + and the source is a symlink, shutil.move() now recreates a symlink on the + destination instead of copying the file contents. Patch by Jonathan Niehof + and Hynek Schlawack. + - Issue #12926: Fix a bug in tarfile's link extraction. - Issue #13696: Fix the 302 Relative URL Redirection problem. @@ -483,15 +1115,44 @@ Library - Issue #13636: Weak ciphers are now disabled by default in the ssl module (except when SSLv2 is explicitly asked for). +- Issue #12715: Add an optional symlinks argument to shutil functions + (copyfile, copymode, copystat, copy, copy2). When that parameter is + true, symlinks aren't dereferenced and the operation instead acts on the + symlink itself (or creates one, if relevant). Patch by Hynek Schlawack. + +- Add a flags parameter to select.epoll. + - Issue #12798: Updated the mimetypes documentation. +- Issue #13626: Add support for SSL Diffie-Hellman key exchange, through the + SSLContext.load_dh_params() method and the ssl.OP_SINGLE_DH_USE option. + - Issue #11006: Don't issue low level warning in subprocess when pipe2() fails. +- Issue #13620: Support for Chrome browser in webbrowser. Patch contributed + by Arnaud Calmettes. + - Issue #11829: Fix code execution holes in inspect.getattr_static for metaclasses with metaclasses. Patch by Andreas Stührk. +- Issue #12708: Add starmap() and starmap_async() methods (similar to + itertools.starmap()) to multiprocessing.Pool. Patch by Hynek Schlawack. + - Issue #1785: Fix inspect and pydoc with misbehaving descriptors. +- Issue #13637: "a2b" functions in the binascii module now accept ASCII-only + unicode strings. + +- Issue #13634: Add support for querying and disabling SSL compression. + +- Issue #13627: Add support for SSL Elliptic Curve-based Diffie-Hellman + key exchange, through the SSLContext.set_ecdh_curve() method and the + ssl.OP_SINGLE_ECDH_USE option. + +- Issue #13635: Add ssl.OP_CIPHER_SERVER_PREFERENCE, so that SSL servers + choose the cipher based on their own preferences, rather than on the + client's. + - Issue #11813: Fix inspect.getattr_static for modules. Patch by Andreas Stührk. @@ -504,27 +1165,62 @@ Library - Issue #8035: urllib: Fix a bug where the client could remain stuck after a redirection or an error. +- Issue #13560: os.strerror() now uses the current locale encoding instead of + UTF-8. + +- Issue #13560: Add PyUnicode_DecodeLocale(), PyUnicode_DecodeLocaleAndSize() + and PyUnicode_EncodeLocale() functions to the C API to decode/encode from/to + the current locale encoding. + +- Issue #8373: The filesystem path of AF_UNIX sockets now uses the filesystem + encoding and the surrogateescape error handler, rather than UTF-8. Patch + by David Watson. + - Issue #10350: Read and save errno before calling a function which might overwrite it. Original patch by Hallvard B Furuseth. +- Issue #11610: Introduce a more general way to declare abstract properties. + - Issue #13591: A bug in importlib has been fixed that caused import_module to load a module twice. - Issue #4625: If IDLE cannot write to its recent file or breakpoint files, display a message popup and continue rather than crash. - (original patch by Roger Serwy) + (original patch by Roger Serwy) + +- Issue #13449 sched.scheduler.run() method has a new "blocking" parameter which + when set to False makes run() execute the scheduled events due to expire + soonest (if any) and then return. Patch by Giampaolo Rodolà. -- Issue #5905: time.strftime() is now using the locale encoding, instead of - UTF-8, if the wcsftime() function is not available. +- Issue #8684 sched.scheduler class can be safely used in multi-threaded + environments. Patch by Josiah Carlson and Giampaolo Rodolà. + +- Alias resource.error to OSError ala PEP 3151. + +- Issue #5689: Add support for lzma compression to the tarfile module. + +- Issue #13248: Turn 3.2's PendingDeprecationWarning into 3.3's + DeprecationWarning. It covers 'cgi.escape', 'importlib.abc.PyLoader', + 'importlib.abc.PyPycLoader', 'nntplib.NNTP.xgtitle', 'nntplib.NNTP.xpath', + and private attributes of 'smtpd.SMTPChannel'. + +- Issue #5905, #13560: time.strftime() is now using the current locale + encoding, instead of UTF-8, if the wcsftime() function is not available. - Issue #8641: Update IDLE 3 syntax coloring to recognize b".." and not u"..". Patch by Tal Einat. +- Issue #13464: Add a readinto() method to http.client.HTTPResponse. Patch + by Jon Kuhn. + - tarfile.py: Correctly detect bzip2 compressed streams with blocksizes other than 900k. - Issue #13439: Fix many errors in turtle docstrings. +- Issue #6715: Add a module 'lzma' for compression using the LZMA algorithm. + Thanks to Per Øyvind Karlsen for the initial implementation. + - Issue #13487: Make inspect.getmodule robust against changes done to sys.modules while it is iterating over it. @@ -534,15 +1230,31 @@ Library - Issue #13444: When stdout has been closed explicitly, we should not attempt to flush it at shutdown and print an error. +- Issue #12567: The curses module uses Unicode functions for Unicode arguments + when it is linked to the ncurses library. It encodes also Unicode strings to + the locale encoding instead of UTF-8. + - Issue #12856: Ensure child processes do not inherit the parent's random seed for filename generation in the tempfile module. Patch by Brian Harring. +- Issue #9957: SpooledTemporaryFile.truncate() now accepts an optional size + parameter, as other file-like objects. Patch by Ryan Kelly. + - Issue #13458: Fix a memory leak in the ssl module when decoding a certificate with a subjectAltName. Patch by Robert Xiao. - Issue #13415: os.unsetenv() doesn't ignore errors anymore. +- Issue #13245: sched.scheduler class constructor's timefunc and + delayfunct parameters are now optional. + scheduler.enter and scheduler.enterabs methods gained a new kwargs parameter. + Patch contributed by Chris Clark. + +- Issue #12328: Under Windows, refactor handling of Ctrl-C events and + make _multiprocessing.win32.WaitForMultipleObjects interruptible when + the wait_flag parameter is false. Patch by sbt. + - Issue #13322: Fix BufferedWriter.write() to ensure that BlockingIOError is raised when the wrapped raw file is non-blocking and the write would block. Previous code assumed that the raw write() would raise BlockingIOError, but @@ -555,13 +1267,25 @@ Library node when it is the only child of an element. Initial patch by Dan Kenigsberg. +- Issue #13374: The Windows bytes API has been deprecated in the os module. Use + Unicode filenames instead of bytes filenames to not depend on the ANSI code + page anymore and to support any filename. + +- Issue #13297: Use bytes type to send and receive binary data through XMLRPC. + +- Issue #6397: Support "/dev/poll" polling objects in select module, + under Solaris & derivatives. + - Issues #1745761, #755670, #13357, #12629, #1200313: HTMLParser now correctly handles non-valid attributes, including adjacent and unquoted attributes. -- Issue #13193: Fix distutils.filelist.FileList under Windows. +- Issue #13193: Fix distutils.filelist.FileList and packaging.manifest.Manifest + under Windows. - Issue #13384: Remove unnecessary __future__ import in Lib/random.py +- Issue #13149: Speed up append-only StringIO objects. + - Issue #13373: multiprocessing.Queue.get() could sometimes block indefinitely when called with a timeout. Patch by Arnaud Ysmal. @@ -577,11 +1301,20 @@ Library - Issue #13339: Fix compile error in posixmodule.c due to missing semicolon. Thanks to Robert Xiao. +- Byte compilation in packaging is now isolated from the calling Python -B or + -O options, instead of being disallowed under -B or buggy under -O. + - Issue #10570: curses.putp() and curses.tparm() are now expecting a byte string, instead of a Unicode string. +- Issue #13295: http.server now produces valid HTML 4.01 strict. + - Issue #2892: preserve iterparse events in case of SyntaxError. +- Issue #13287: urllib.request and urllib.error now contains an __all__ + attribute to expose only relevant classes and functions. Patch by Florent + Xicluna. + - Issue #670664: Fix HTMLParser to correctly handle the content of ``<script>...</script>`` and ``<style>...</style>``. @@ -591,6 +1324,9 @@ Library - Issue #13296: Fix IDLE to clear compile __future__ flags on shell restart. (Patch by Roger Serwy) +- Fix the xmlrpc.client user agent to return something similar to + urllib.request user agent: "Python-xmlrpc/3.3". + - Issue #13293: Better error message when trying to marshal bytes using xmlrpc.client. @@ -601,51 +1337,81 @@ Library - Issue #13273: fix a bug that prevented HTMLParser to properly detect some tags when strict=False. +- Issue #11183: Add finer-grained exceptions to the ssl module, so that + you don't have to inspect the exception's attributes in the common case. + +- Issue #13216: Add cp65001 codec, the Windows UTF-8 (CP_UTF8). + +- Issue #13226: Add RTLD_xxx constants to the os module. These constants can be + used with sys.setdlopenflags(). + +- Issue #10278: Add clock_getres(), clock_gettime() and CLOCK_xxx constants to + the time module. time.clock_gettime(time.CLOCK_MONOTONIC) provides a + monotonic clock + - Issue #10332: multiprocessing: fix a race condition when a Pool is closed before all tasks have completed. - Issue #13255: wrong docstrings in array module. +- Issue #8540: Remove deprecated Context._clamp attribute in Decimal module. + +- Issue #13235: Added PendingDeprecationWarning to warn() method and function. + - Issue #9168: now smtpd is able to bind privileged port. - Issue #12529: fix cgi.parse_header issue on strings with double-quotes and semicolons together. Patch by Ben Darnell and Petri Lehtinen. -- Issue #12448: smtplib now flushes stdout while running ``python -m smtplib`` - in order to display the prompt correctly. +- Issue #13227: functools.lru_cache() now has a option to distinguish + calls with different argument types. - Issue #6090: zipfile raises a ValueError when a document with a timestamp earlier than 1980 is provided. Patch contributed by Petri Lehtinen. +- Issue #13150: sysconfig no longer parses the Makefile and config.h files + when imported, instead doing it at build time. This makes importing + sysconfig faster and reduces Python startup time by 20%. + +- Issue #12448: smtplib now flushes stdout while running ``python -m smtplib`` + in order to display the prompt correctly. + +- Issue #12454: The mailbox module is now using ASCII, instead of the locale + encoding, to read and write MH mailboxes (.mh_sequences files). + - Issue #13194: zlib.compressobj().copy() and zlib.decompressobj().copy() are now available on Windows. +- issue #1673007: urllib2 to support HEAD request via new method argument. + Patch contributions by David Stanek, Patrick Westerhoff and Ezio Melotti. + +- Issue #12386: packaging does not fail anymore when writing the RESOURCES + file. + - Issue #13158: Fix decoding and encoding of GNU tar specific base-256 number fields in tarfile. -- Issue #13177: Functools lru_cache() no longer calls the original function - inside an exception handler. This makes tracebacks easier to read because - chained exceptions are avoided. - - Issue #13025: mimetypes is now reading MIME types using the UTF-8 encoding, instead of the locale encoding. - Issue #10653: On Windows, use strftime() instead of wcsftime() because wcsftime() doesn't format time zone correctly. +- Issue #13150: The tokenize module doesn't compile large regular expressions + at startup anymore. + - Issue #11171: Fix distutils.sysconfig.get_makefile_filename when Python was configured with different prefix and exec-prefix. -- Issue #11254: Teach distutils to compile .pyc and .pyo files in +- Issue #11254: Teach distutils and packaging to compile .pyc and .pyo files in PEP 3147-compliant __pycache__ directories. -- Issue #11250: Back port fix from 3.3 branch, so that 2to3 can handle files - with line feeds. This was ported from the sandbox to the 3.3 branch, but - didn't make it into 3.2. - - Issue #7367: Fix pkgutil.walk_paths to skip directories whose contents cannot be read. +- Issue #3163: The struct module gets new format characters 'n' and 'N' + supporting C integer types ``ssize_t`` and ``size_t``, respectively. + - Issue #13099: Fix sqlite3.Cursor.lastrowid under a Turkish locale. Reported and diagnosed by Thomas Kluyver. @@ -666,13 +1432,29 @@ Library with invalid hex escape sequences, like b'\x0'. (Original patch by Claudiu Popa.) -- Issue #8933: distutils' PKG-INFO files will now correctly report - Metadata-Version: 1.1 instead of 1.0 if a Classifier or Download-URL field is - present. +- Issue #12306: Expose the runtime version of the zlib C library as a constant, + ZLIB_RUNTIME_VERSION, in the zlib module. Patch by Torsten Landschoff. + +- Issue #12959: Add collections.ChainMap to collections.__all__. + +- Issue #8933: distutils' PKG-INFO files and packaging's METADATA files will + now correctly report Metadata-Version: 1.1 instead of 1.0 if a Classifier or + Download-URL field is present. -- Issue #9561: distutils now reads and writes egg-info files using UTF-8, +- Issue #12567: Add curses.unget_wch() function. Push a character so the next + get_wch() will return it. + +- Issue #9561: distutils and packaging now writes egg-info files using UTF-8, instead of the locale encoding. +- Issue #8286: The distutils command sdist will print a warning message instead + of crashing when an invalid path is given in the manifest template. + +- Issue #12841: tarfile unnecessarily checked the existence of numerical user + and group ids on extraction. If one of them did not exist the respective id + of the current user (i.e. root) was used for the file and ownership + information was lost. + - Issue #12888: Fix a bug in HTMLParser.unescape that prevented it to escape more than 128 entities. Patch by Peter Otten. @@ -680,6 +1462,16 @@ Library - Issue #12636: IDLE reads the coding cookie when executing a Python script. +- Issue #12494: On error, call(), check_call(), check_output() and + getstatusoutput() functions of the subprocess module now kill the process, + read its status (to avoid zombis) and close pipes. + +- Issue #12720: Expose low-level Linux extended file attribute functions in os. + +- Issue #10946: The distutils commands bdist_dumb, bdist_wininst and bdist_msi + now respect a --skip-build option given to bdist. The packaging commands + were fixed too. + - Issue #12847: Fix a crash with negative PUT and LONG_BINPUT arguments in the C pickle implementation. @@ -689,201 +1481,47 @@ Library - Issue #12287: Fix a stack corruption in ossaudiodev module when the FD is greater than FD_SETSIZE. -- Issue #11657: Fix sending file descriptors over 255 over a multiprocessing - Pipe. - -- Issue #13007: whichdb should recognize gdbm 1.9 magic numbers. - -- Issue #12213: Fix a buffering bug with interleaved reads and writes that - could appear on BufferedRandom streams. - -- Issue #12650: Fix a race condition where a subprocess.Popen could leak - resources (FD/zombie) when killed at the wrong time. - -- Issue #10860: http.client now correctly handles an empty port after port - delimiter in URLs. - -Build ------ - -- Issue #6807: Run msisupport.mak earlier. - -- Issue #10580: Minor grammar change in Windows installer. - -- Issue #13326: Clean __pycache__ directories correctly on OpenBSD. - -Tools/Demos ------------ - -- Issue #14053: patchcheck.py ("make patchcheck") now works with MQ patches. - Patch by Francisco Martín Brugué. - -- Issue #13930: 2to3 is now able to write its converted output files to another - directory tree as well as copying unchanged files and altering the file - suffix. See its new -o, -W and --add-suffix options. This makes it more - useful in many automated code translation workflows. - -- Issue #13628: python-gdb.py is now able to retrieve more frames in the Python - traceback if Python is optimized. - -Tests ------ - -- Issue #11689: Fix a variable scoping error in an sqlite3 test - -- Issue #13786: Remove unimplemented 'trace' long option from regrtest.py. - -- Issue #13725: Fix regrtest to recognize the documented -d flag. - Patch by Erno Tukia. - -- Issue #13304: Skip test case if user site-packages disabled (-s or - PYTHONNOUSERSITE). (Patch by Carl Meyer) - -- Issue #13218: Fix test_ssl failures on Debian/Ubuntu. - -- Issue #12821: Fix test_fcntl failures on OpenBSD 5. - -- Re-enable lib2to3's test_parser.py tests, though with an expected failure - (see issue 13125). - -Extension Modules ------------------ - -- Issue #13840: The error message produced by ctypes.create_string_buffer - when given a Unicode string has been fixed. - -- Issue #9975: socket: Fix incorrect use of flowinfo and scope_id. Patch by - Vilmos Nebehaj. - -- Issue #13159: FileIO and BZ2File now use a linear-time buffer growth - strategy instead of a quadratic-time one. - -- Issue #13070: Fix a crash when a TextIOWrapper caught in a reference cycle - would be finalized after the reference to its underlying BufferedRWPair's - writer got cleared by the GC. - -- Issue #12881: ctypes: Fix segfault with large structure field names. - -- Issue #13058: ossaudiodev: fix a file descriptor leak on error. Patch by - Thomas Jarosch. - -- Issue #13013: ctypes: Fix a reference leak in PyCArrayType_from_ctype. - Thanks to Suman Saha for finding the bug and providing a patch. - -- Issue #13022: Fix: _multiprocessing.recvfd() doesn't check that - file descriptor was actually received. - -- Issue #12483: ctypes: Fix a crash when the destruction of a callback - object triggers the garbage collector. - -- Issue #12950: Fix passing file descriptors in multiprocessing, under - OpenIndiana/Illumos. - -Documentation -------------- - -- Issues #13491 and #13995: Fix many errors in sqlite3 documentation. - Initial patch for #13491 by Johannes Vogel. - -- Issue #13402: Document absoluteness of sys.executable. - -- Issue #13883: PYTHONCASEOK also used on OS X and OS/2. - -- Issue #12949: Document the kwonlyargcount argument for the PyCode_New - C API function. - -- Issue #2134: The tokenize documentation has been clarified to explain why - all operator and delimiter tokens are treated as token.OP tokens. - -- Issue #13513: Fix io.IOBase documentation to correctly link to the - io.IOBase.readline method instead of the readline module. - -- Issue #13237: Reorganise subprocess documentation to emphasise convenience - functions and the most commonly needed arguments to Popen. - -- Issue #13141: Demonstrate recommended style for socketserver examples. - - -What's New in Python 3.2.2? -=========================== - -*Release date: 03-Sep-2011* - -Core and Builtins ------------------ - -- Issue #12326: sys.platform is now always 'linux2' on Linux, even if Python - is compiled on Linux 3. - -- Accept bytes for the AST string type. This is temporary until a proper fix in - 3.3. - -Library -------- - -- Issue #8286: The distutils command sdist will print a warning message instead - of crashing when an invalid path is given in the manifest template. - -- Issue #12841: tarfile unnecessarily checked the existence of numerical user - and group ids on extraction. If one of them did not exist the respective id - of the current user (i.e. root) was used for the file and ownership - information was lost. - -- Issue #10946: The distutils commands bdist_dumb, bdist_wininst and bdist_msi - now respect a --skip-build option given to bdist. - - Issue #12839: Fix crash in zlib module due to version mismatch. Fix by Richard M. Tew. -Extension Modules ------------------ - -- Issue #9651: Fix a crash when ctypes.create_string_buffer(0) was passed to - some functions like file.write(). - +- Issue #9923: The mailcap module now correctly uses the platform path + separator for the MAILCAP environment variable on non-POSIX platforms. +- Issue #12835: Follow up to #6560 that unconditionally prevents use of the + unencrypted sendmsg/recvmsg APIs on SSL wrapped sockets. Patch by David + Watson. -What's New in Python 3.2.2 release candidate 1? -=============================================== +- Issue #12803: SSLContext.load_cert_chain() now accepts a password argument + to be used if the private key is encrypted. Patch by Adam Simpkins. -*Release date: 14-Aug-2011* - -Core and Builtins ------------------ - -- Issue #12732: In narrow unicode builds, allow Unicode identifiers which fall - outside the BMP. - -- Issue #11603: Fix a crash when __str__ is rebound as __repr__. Patch by - Andreas Stührk. +- Issue #11657: Fix sending file descriptors over 255 over a multiprocessing + Pipe. -- Issue #11321: Fix a crash with multiple imports of the _pickle module when - embedding Python. Patch by Andreas Stührk. +- Issue #12811: tabnanny.check() now promptly closes checked files. Patch by + Anthony Briggs. -- Verify the types of AST strings and identifiers provided by the user before - compiling them. +- Issue #6560: The sendmsg/recvmsg API is now exposed by the socket module + when provided by the underlying platform, supporting processing of + ancillary data in pure Python code. Patch by David Watson and Heiko Wundram. -- Issue #12579: str.format_map() now raises a ValueError if used on a - format string that contains positional fields. Initial patch by - Julian Berman. +- Issue #12326: On Linux, sys.platform doesn't contain the major version + anymore. It is now always 'linux', instead of 'linux2' or 'linux3' depending + on the Linux version used to build Python. -- Issue #11627: Fix segfault when __new__ on a exception returns a - non-exception class. +- Issue #12213: Fix a buffering bug with interleaved reads and writes that + could appear on BufferedRandom streams. -- Issue #12149: Update the method cache after a type's dictionary gets - cleared by the garbage collector. This fixes a segfault when an instance - and its type get caught in a reference cycle, and the instance's - deallocator calls one of the methods on the type (e.g. when subclassing - IOBase). Diagnosis and patch by Davide Rizzo. +- Issue #12778: Reduce memory consumption when JSON-encoding a large + container of many small objects. -- When a generator yields, do not retain the caller's exception state on the - generator. +- Issue #12650: Fix a race condition where a subprocess.Popen could leak + resources (FD/zombie) when killed at the wrong time. -- Issue #12475: Prevent generators from leaking their exception state into the - caller's frame as they return for the last time. +- Issue #12744: Fix inefficient representation of integers between 2**31 and + 2**63 on systems with a 64-bit C "long". -Library -------- +- Issue #12646: Add an 'eof' attribute to zlib.Decompress, to make it easier to + detect truncated input streams. - Issue #11513: Fix exception handling ``tarfile.TarFile.gzopen()`` when the file cannot be opened. @@ -896,18 +1534,42 @@ Library - Issue #12540: Prevent zombie IDLE processes on Windows due to changes in os.kill(). +- Add support for unary plus and unary minus to collections.Counter(). + Issue #13121: Also add support for inplace math operators. + - Issue #12683: urlparse updated to include svn as schemes that uses relative paths. (svn from 1.5 onwards support relative path). +- Issue #12655: Expose functions from sched.h in the os module: sched_yield(), + sched_setscheduler(), sched_getscheduler(), sched_setparam(), + sched_get_min_priority(), sched_get_max_priority(), sched_rr_get_interval(), + sched_getaffinity(), sched_setaffinity(). + +- Add ThreadError to threading.__all__. + - Issues #11104, #8688: Fix the behavior of distutils' sdist command with manually-maintained MANIFEST files. +- Issue #11281: smtplib.STMP gets source_address parameter, which adds the + ability to bind to specific source address on a machine with multiple + interfaces. Patch by Paulo Scardine. + - Issue #12464: tempfile.TemporaryDirectory.cleanup() should not follow symlinks: fix it. Patch by Petri Lehtinen. - Issue #8887: "pydoc somebuiltin.somemethod" (or help('somebuiltin.somemethod') in Python code) now finds the doc of the method. +- Issue #10968: Remove indirection in threading. The public names (Thread, + Condition, etc.) used to be factory functions returning instances of hidden + classes (_Thread, _Condition, etc.), because (if Guido recalls correctly) this + code pre-dates the ability to subclass extension types. It is now possible to + inherit from Thread and other classes, without having to import the private + underscored names like multiprocessing did. + +- Issue #9723: Add shlex.quote functions, to escape filenames and command + lines. + - Issue #12603: Fix pydoc.synopsis() on files with non-negative st_mtime. - Issue #12514: Use try/finally to assure the timeit module restores garbage @@ -922,201 +1584,127 @@ Library - Issue #12576: Fix urlopen behavior on sites which do not send (or obfuscates) Connection:close header. +- Issue #12102: Document that buffered files must be flushed before being used + with mmap. Patch by Steffen Daode Nurpmeso. + +- Issue #12560: Build libpython.so on OpenBSD. Patch by Stefan Sperling. + - Issue #1813: Fix codec lookup under Turkish locales. - Issue #12591: Improve support of "universal newlines" in the subprocess module: the piped streams can now be properly read from or written to. - Issue #12591: Allow io.TextIOWrapper to work with raw IO objects (without - a read1() method), and add an undocumented *write_through* parameter to - mandate unbuffered writes. - -- Issue #9611, #9015: FileIO.read() clamps the length to INT_MAX on Windows. + a read1() method), and add a *write_through* parameter to mandate + unbuffered writes. - Issue #10883: Fix socket leaks in urllib.request when using FTP. -- Issue #12571: Add a plat-linux3 directory mirroring the plat-linux2 - directory, so that "import DLFCN" and other similar imports work on - Linux 3.0. - -- Issue #7484: smtplib no longer puts <> around addresses in VRFY and EXPN - commands; they aren't required and in fact postfix doesn't support that form. - -- Close the call queue in concurrent.futures.ProcessPoolExecutor when - shutdown() is called, without waiting for the garbage collector to kick in. - -- Issue #12502: asyncore: fix polling loop with AF_UNIX sockets. - -- Issue #4376: ctypes now supports nested structures with an endianness - different than that of the parent structure. Patch by Vlad Riscutia. - -- Raise ValueError when attempting to set the _CHUNK_SIZE attribute of a - TextIOWrapper to a huge value, not TypeError. - -- Issue #12493: subprocess: Popen.communicate() now also handles EINTR errors - if the process has only one pipe. - -- Issue #12451: pydoc: html_getfile() now uses tokenize.open() to support - Python modules using a encoding different than UTF-8 (reading the coding - cookie of the module). - -- Issue #12451: pydoc: importfile() now opens the Python module in binary mode, - instead of text mode using the locale encoding, to avoid encoding issues. - -- Issue #12451: runpy: run_path() now opens the Python module in binary mode, - instead of text mode using the locale encoding, to support other encodings - than UTF-8 (modules using the coding cookie). - -- Issue #12451: xml.dom.pulldom: parse() now opens files in binary mode instead - of the text mode (using the locale encoding) to avoid encoding issues. - -Extension Modules ------------------ - -- Issue #12764: Fix a crash in ctypes when the name of a Structure field is not - a string. - -- Issue #11241: subclasses of ctypes.Array can now be subclassed. - -- Issue #10309: Define _GNU_SOURCE so that mremap() gets the proper - signature. Without this, architectures where sizeof void* != sizeof int are - broken. Patch given by Hallvard B Furuseth. - -C-API ------ - -Build ------ - -- Issue #12560: Build libpython.so on OpenBSD. Patch by Stefan Sperling. - - Issue #12592: Make Python build on OpenBSD 5 (and future major releases). - Issue #12372: POSIX semaphores are broken on AIX: don't use them. -Tools/Demos ------------ +- Issue #12551: Provide a get_channel_binding() method on SSL sockets so as + to get channel binding data for the current SSL session (only the + "tls-unique" channel binding is implemented). This allows the implementation + of certain authentication mechanisms such as SCRAM-SHA-1-PLUS. Patch by + Jacek Konieczny. -- Issue #10639: reindent.py no longer converts newlines and will raise - an error if attempting to convert a file with mixed newlines. +- Issue #665194: email.utils now has format_datetime and parsedate_to_datetime + functions, allowing for round tripping of RFC2822 format dates. -Tests ------ +- Issue #12571: Add a plat-linux3 directory mirroring the plat-linux2 + directory, so that "import DLFCN" and other similar imports work on + Linux 3.0. -- Issue #12331: The test suite for lib2to3 can now run from an installed - Python. +- Issue #7484: smtplib no longer puts <> around addresses in VRFY and EXPN + commands; they aren't required and in fact postfix doesn't support that form. -- Issue #12626: In regrtest, allow to filter tests using a glob filter - with the ``-m`` (or ``--match``) option. This works with all test cases - using the unittest module. This is useful with long test suites - such as test_io or test_subprocess. +- Issue #12273: Remove ast.__version__. AST changes can be accounted for by + checking sys.version_info or sys._mercurial. -- Issue #12624: It is now possible to fail after the first failure when - running in verbose mode (``-v`` or ``-W``), by using the ``--failfast`` - (or ``-G``) option to regrtest. This is useful with long test suites - such as test_io or test_subprocess. +- Silence spurious "broken pipe" tracebacks when shutting down a + ProcessPoolExecutor. -- Issue #12587: Correct faulty test file and reference in test_tokenize. - (Patch by Robert Xiao) +- Fix potential resource leaks in concurrent.futures.ProcessPoolExecutor + by joining all queues and processes when shutdown() is called. -- Try harder to reap dangling threads in test.support.reap_threads(). +- Issue #11603: Fix a crash when __str__ is rebound as __repr__. Patch by + Andreas Stührk. -- Issue #12573: Add resource checks for dangling Thread and Process objects. +- Issue #11321: Fix a crash with multiple imports of the _pickle module when + embedding Python. Patch by Andreas Stührk. -- Issue #12549: Correct test_platform to not fail when OS X returns 'x86_64' - as the processor type on some Mac systems. +- Issue #6755: Add get_wch() method to curses.window class. Patch by Iñigo + Serna. -- Avoid failing in test_robotparser when mueblesmoraleda.com is flaky and - an overzealous DNS service (e.g. OpenDNS) redirects to a placeholder - Web site. +- Add cgi.closelog() function to close the log file. -- Issue #12440: When testing whether some bits in SSLContext.options can be - reset, check the version of the OpenSSL headers Python was compiled against, - rather than the runtime version of the OpenSSL library. +- Issue #12502: asyncore: fix polling loop with AF_UNIX sockets. -- Issue #12497: Install test/data to prevent failures of the various codecmaps - tests. +- Issue #4376: ctypes now supports nested structures in a endian different than + the parent structure. Patch by Vlad Riscutia. -- Issue #12496: Install test/capath directory to prevent test_connect_capath - testcase failure in test_ssl. +- Raise ValueError when attempting to set the _CHUNK_SIZE attribute of a + TextIOWrapper to a huge value, not TypeError. -- Issue #12469: Run "wakeup" signal tests in subprocess to run the test in a - fresh process with only one thread and to not change signal handling of the - parent process. +- Issue #12504: Close file handles in a timely manner in packaging.database. + This fixes a bug with the remove (uninstall) feature on Windows. -- Issue #8716: Avoid crashes caused by Aqua Tk on OSX when attempting to run - test_tk or test_ttk_guionly under a username that is not currently logged - in to the console windowserver (as may be the case under buildbot or ssh). +- Issues #12169 and #10510: Factor out code used by various packaging commands + to make HTTP POST requests, and make sure it uses CRLF. +- Issue #12016: Multibyte CJK decoders now resynchronize faster. They only + ignore the first byte of an invalid byte sequence. For example, + b'\xff\n'.decode('gb2312', 'replace') gives '\ufffd\n' instead of '\ufffd'. -What's New in Python 3.2.1? -=========================== +- Issue #12459: time.sleep() now raises a ValueError if the sleep length is + negative, instead of an infinite sleep on Windows or raising an IOError on + Linux for example, to have the same behaviour on all platforms. -*Release date: 10-Jul-2011* +- Issue #12451: pydoc: html_getfile() now uses tokenize.open() to support + Python scripts using a encoding different than UTF-8 (read the coding cookie + of the script). -Library -------- +- Issue #12493: subprocess: Popen.communicate() now also handles EINTR errors + if the process has only one pipe. - Issue #12467: warnings: fix a race condition if a warning is emitted at shutdown, if globals()['__file__'] is None. -Tests ------ - -- Skip network tests when getaddrinfo() returns EAI_AGAIN, meaning a temporary - failure in name resolution. - -- Issue #11812: Solve transient socket failure to connect to 'localhost' - in test_telnetlib.py. - -- Solved a potential deadlock in test_telnetlib.py. Related to issue #11812. - -- Avoid failing in test_urllibnet.test_bad_address when some overzealous - DNS service (e.g. OpenDNS) resolves a non-existent domain name. The test - is now skipped instead. - - -What's New in Python 3.2.1 release candidate 2? -=============================================== - -*Release date: 03-Jul-2011* - -Core and Builtins ------------------ - -- Issue #12291: You can now load multiple marshalled objects from a stream, with - other data interleaved between marshalled objects. - -- Issue #12084: os.stat on Windows now works properly with relative symbolic - links when called from any directory. - -- Issue #1195: my_fgets() now always clears errors before calling fgets(). Fix - the following case: sys.stdin.read() stopped with CTRL+d (end of file), - raw_input() interrupted by CTRL+c. +- Issue #12451: pydoc: importfile() now opens the Python script in binary mode, + instead of text mode using the locale encoding, to avoid encoding issues. -- Issue #9670: Increase the default stack size for secondary threads on Mac OS X - and FreeBSD to reduce the chances of a crash instead of a "maximum recursion - depth" RuntimeError exception (patch by Ronald Oussoren). +- Issue #12451: runpy: run_path() now opens the Python script in binary mode, + instead of text mode using the locale encoding, to support other encodings + than UTF-8 (scripts using the coding cookie). -Library -------- +- Issue #12451: xml.dom.pulldom: parse() now opens files in binary mode instead + of the text mode (using the locale encoding) to avoid encoding issues. - Issue #12147: Adjust the new-in-3.2 smtplib.send_message method for better - conformance to the RFCs: correctly handle Sender and Resent headers. + conformance to the RFCs: correctly handle Sender and Resent- headers. - Issue #12352: Fix a deadlock in multiprocessing.Heap when a block is freed by the garbage collector while the Heap lock is held. +- Issue #12462: time.sleep() now calls immediatly the (Python) signal handler + if it is interrupted by a signal, instead of having to wait until the next + instruction. + +- Issue #12442: new shutil.disk_usage function, providing total, used and free + disk space statistics. + - Issue #12451: The XInclude default loader of xml.etree now decodes files from UTF-8 instead of the locale encoding if the encoding is not specified. It now - also opens XML files for the parser in binary mode instead of the text mode to - avoid encoding issues. - -- Issue #12451: doctest.debug_script() doesn't create a temporary file anymore + also opens XML files for the parser in binary mode instead of the text mode to avoid encoding issues. -- Issue #12451: pydoc.synopsis() now reads the encoding cookie if available, to - read the Python module from the right encoding. +- Issue #12451: doctest.debug_script() doesn't create a temporary file + anymore to avoid encoding issues. + +- Issue #12451: pydoc.synopsis() now reads the encoding cookie if available, + to read the Python script from the right encoding. - Issue #12451: distutils now opens the setup script in binary mode to read the encoding cookie, instead of opening it in UTF-8. @@ -1130,14 +1718,32 @@ Library still possible to globally override the default by setting MACOSX_DEPLOYMENT_TARGET before launching the interpreter; its value must be greater or equal to the default value, the value with which the interpreter - was built. + was built. Also, implement the same handling in packaging. + +- Issue #12422: In the copy module, don't store objects that are their own copy + in the memo dict. + +- Issue #12303: Add sigwaitinfo() and sigtimedwait() to the signal module. + +- Issue #12404: Remove C89 incompatible code from mmap module. Patch by Akira + Kitada. + +- Issue #1874: email now detects and reports as a defect the presence of + any CTE other than 7bit, 8bit, or binary on a multipart. - Issue #12383: Fix subprocess module with env={}: don't copy the environment variables, start with an empty environment. -- Issue #11584: email.header.decode_header no longer fails if the header passed - to it is a Header object, and Header/make_header no longer fail if given - binary unknown-8bit input. +- Issue #11637: Fix support for importing packaging setup hooks from the + project directory. + +- Issue #6771: Moved the curses.wrapper function from the single-function + wrapper module into __init__, eliminating the module. Since __init__ was + already importing the function to curses.wrapper, there is no API change. + +- Issue #11584: email.header.decode_header no longer fails if the header + passed to it is a Header object, and Header/make_header no longer fail + if given binary unknown-8bit input. - Issue #11700: mailbox proxy object close methods can now be called multiple times without error. @@ -1148,117 +1754,136 @@ Library connection if its getresponse() method fails with a socket error. Patch written by Ezio Melotti. +- Issue #12240: Allow multiple setup hooks in packaging's setup.cfg files. + Original patch by Erik Bray. + - Issue #9284: Allow inspect.findsource() to find the source of doctest functions. +- Issue #11595: Fix assorted bugs in packaging.util.cfg_to_args, a + compatibility helper for the distutils-packaging transition. Original patch + by Erik Bray. + +- Issue #12287: In ossaudiodev, check that the device isn't closed in several + methods. + - Issue #12009: Fixed regression in netrc file comment handling. +- Issue #12246: Warn and fail when trying to install a third-party project from + an uninstalled Python (built in a source checkout). Original patch by + Tshepang Lekhonkhobe. + - Issue #10694: zipfile now ignores garbage at the end of a zipfile. - Issue #12283: Fixed regression in smtplib quoting of leading dots in DATA. +- Issue #10424: Argparse now includes the names of the missing required + arguments in the missing arguments error message. + - Issue #12168: SysLogHandler now allows NUL termination to be controlled using a new 'append_nul' attribute on the handler. - Issue #11583: Speed up os.path.isdir on Windows by using GetFileAttributes instead of os.stat. -- Named tuples now work correctly with vars(). +- Issue #12021: Make mmap's read() method argument optional. Patch by Petri + Lehtinen. -- Issue #12085: Fix an attribute error in subprocess.Popen destructor if the - constructor has failed, e.g. because of an undeclared keyword argument. Patch - written by Oleg Oshmyan. +- Issue #9205: concurrent.futures.ProcessPoolExecutor now detects killed + children and raises BrokenProcessPool in such a situation. Previously it + would reliably freeze/deadlock. -- Issue #985064: Make plistlib more resilient to faulty input plists. Patch by - Mher Movsisyan. +- Issue #12040: Expose a new attribute ``sentinel`` on instances of + :class:`multiprocessing.Process`. Also, fix Process.join() to not use + polling anymore, when given a timeout. -- Issue #12175: RawIOBase.readall() now returns None if read() returns None. +- Issue #11893: Remove obsolete internal wrapper class ``SSLFakeFile`` in the + smtplib module. Patch by Catalin Iacob. -- Issue #12175: FileIO.readall() now raises a ValueError instead of an IOError - if the file is closed. +- Issue #12080: Fix a Decimal.power() case that took an unreasonably long time + to compute. -- Issue #12070: Fix the Makefile parser of the sysconfig module to handle - correctly references to "bogus variable" (e.g. "prefix=$/opt/python"). +- Issue #12221: Remove __version__ attributes from pyexpat, pickle, tarfile, + pydoc, tkinter, and xml.parsers.expat. This were useless version constants + left over from the Mercurial transition -- Issue #12100: Don't reset incremental encoders of CJK codecs at each call to - their encode() method anymore, but continue to call the reset() method if the - final argument is True. +- Named tuples now work correctly with vars(). -- Issue #5715: In socketserver, close the server socket in the child process. +- Issue #12085: Fix an attribute error in subprocess.Popen destructor if the + constructor has failed, e.g. because of an undeclared keyword argument. Patch + written by Oleg Oshmyan. -- Correct lookup of __dir__ on objects. Among other things, this causes errors - besides AttributeError found on lookup to be propagated. +- Issue #12028: Make threading._get_ident() public, rename it to + threading.get_ident() and document it. This function was already used using + _thread.get_ident(). -- Issue #12124: zipimport doesn't keep a reference to zlib.decompress() anymore - to be able to unload the module. +- Issue #12171: IncrementalEncoder.reset() of CJK codecs (multibytecodec) calls + encreset() instead of decreset(). -- Issue #12065: connect_ex() on an SSL socket now returns the original errno - when the socket's timeout expires (it used to return None). +- Issue #12218: Removed wsgiref.egg-info. -Extension Modules ------------------ +- Issue #12196: Add pipe2() to the os module. -- Issue #12404: Remove C89 incompatible code from mmap module. Patch by Akira - Kitada. +- Issue #985064: Make plistlib more resilient to faulty input plists. + Patch by Mher Movsisyan. -- Issue #12221: Replace pyexpat.__version__ with the Python version. +- Issue #1625: BZ2File and bz2.decompress() now support multi-stream files. + Initial patch by Nir Aides. -Build ------ +- Issue #12175: BufferedReader.read(-1) now calls raw.readall() if available. -- Issue #8746: Correct faulty configure checks so that os.chflags() and - os.lchflags() are once again built on systems that support these functions - (*BSD and OS X). Also add new stat file flags for OS X (UF_HIDDEN and - UF_COMPRESSED). +- Issue #12175: FileIO.readall() now only reads the file position and size + once. -- Issue #11217: For 64-bit/32-bit Mac OS X universal framework builds, ensure - "make install" creates symlinks in --prefix bin for the "-32" files in the - framework bin directory like the installer does. +- Issue #12175: RawIOBase.readall() now returns None if read() returns None. +- Issue #12175: FileIO.readall() now raises a ValueError instead of an IOError + if the file is closed. -Tests ------ +- Issue #11109: New service_action method for BaseServer, used by ForkingMixin + class for cleanup. Initial Patch by Justin Wark. -- Issue #12407: Explicitly skip test_capi.EmbeddingTest under Windows. +- Issue #12045: Avoid duplicate execution of command in + ctypes.util._get_soname(). Patch by Sijin Joseph. -- Issue #12400: regrtest -W doesn't rerun the tests twice anymore, but captures - the output and displays it on failure instead. regrtest -v doesn't print the - error twice anymore if there is only one error. +- Issue #10818: Remove the Tk GUI and the serve() function of the pydoc module, + pydoc -g has been deprecated in Python 3.2 and it has a new enhanced web + server. -- Issue #12141: Install a copy of template C module file so that test_build_ext - of test_distutils is no longer silently skipped when run outside of a build - directory. +- Issue #1441530: In imaplib, read the data in one chunk to speed up large + reads and simplify code. -- Issue #8746: Add additional tests for os.chflags() and os.lchflags(). Patch - by Garrett Cooper. +- Issue #12070: Fix the Makefile parser of the sysconfig module to handle + correctly references to "bogus variable" (e.g. "prefix=$/opt/python"). -- Issue #10736: Fix test_ttk test_widgets failures with Cocoa Tk 8.5.9 on Mac - OS X. (Patch by Ronald Oussoren) +- Issue #12100: Don't reset incremental encoders of CJK codecs at each call to + their encode() method anymore, but continue to call the reset() method if the + final argument is True. -- Issue #12057: Add tests for ISO 2022 codecs (iso2022_jp, iso2022_jp_2, - iso2022_kr). +- Issue #12049: Add RAND_bytes() and RAND_pseudo_bytes() functions to the ssl + module. +- Issue #6501: os.device_encoding() returns None on Windows if the application + has no console. -What's New in Python 3.2.1 release candidate 1? -=============================================== +- Issue #12105: Add O_CLOEXEC to the os module. -*Release date: 15-May-2011* +- Issue #12079: Decimal('Infinity').fma(Decimal('0'), (3.91224318126786e+19+0j)) + now raises TypeError (reflecting the invalid type of the 3rd argument) rather + than Decimal.InvalidOperation. -Core and Builtins ------------------ +- Issue #12124: zipimport doesn't keep a reference to zlib.decompress() anymore + to be able to unload the module. -- Issue #12060: Use sig_atomic_t type and volatile keyword in the signal - module. Patch written by Charles-François Natali. +- Add the packaging module, an improved fork of distutils (also known as + distutils2). -- Issue #12044: Fixed subprocess.Popen when used as a context manager to - wait for the process to end when exiting the context to avoid unintentionally - leaving zombie processes around. - -- Issue #1195: Fix input() if it is interrupted by CTRL+d and then CTRL+c, - clear the end-of-file indicator after CTRL+d. +- Issue #12065: connect_ex() on an SSL socket now returns the original errno + when the socket's timeout expires (it used to return None). -Library -------- +- Issue #8809: The SMTP_SSL constructor and SMTP.starttls() now support + passing a ``context`` argument pointing to an ssl.SSLContext instance. + Patch by Kasun Herath. - Issue #11088: don't crash when using F5 to run a script in IDLE on MacOSX with Tk 8.5. @@ -1266,8 +1891,6 @@ Library - Issue #9516: Issue #9516: avoid errors in sysconfig when MACOSX_DEPLOYMENT_TARGET is set in shell. -- Issue #12012: ssl.PROTOCOL_SSLv2 becomes optional. - - Issue #8650: Make zlib module 64-bit clean. compress(), decompress() and their incremental counterparts now raise OverflowError if given an input larger than 4GB, instead of silently truncating the input and returning @@ -1281,12 +1904,16 @@ Library writing, then seeking before the previous write but still within buffered data, and writing again). +- Issue #9971: Write an optimized implementation of BufferedReader.readinto(). + Patch by John O'Connor. + - Issue #1028: Tk returns invalid Unicode null in %A: UnicodeDecodeError. With Tk < 8.5 _tkinter.c:PythonCmd() raised UnicodeDecodeError, caused IDLE to exit. Converted to valid Unicode null in PythonCmd(). -- Issue #11169: compileall module uses repr() to format filenames and paths to - escape surrogate characters and show spaces. +- Issue #11799: urllib.request Authentication Handlers will raise a ValueError + when presented with an unsupported Authentication Scheme. Patch contributed + by Yuval Greenfield. - Issue #10419, #6011: build_scripts command of distutils handles correctly non-ASCII path (path to the Python executable). Open and write the script in @@ -1296,133 +1923,68 @@ Library - Issue #8498: In socket.accept(), allow to specify 0 as a backlog value in order to accept exactly one connection. Patch by Daniel Evers. -- Issue #11164: Stop trying to use _xmlplus in the xml module. - -Build ------ - -- Issue #11347: Use --no-as-needed when linking libpython3.so. - -Tools/Demos ------------ - -- Issue #11996: libpython (gdb), replace "py-bt" command by "py-bt-full" and - add a smarter "py-bt" command printing a classic Python traceback. - -Tests ------ - -- Issue #12096: Fix a race condition in test_threading.test_waitfor(). Patch - written by Charles-François Natali. - -- Issue #11614: import __hello__ prints "Hello World!". Patch written by - Andreas Stührk. - -- Issue #5723: Improve json tests to be executed with and without accelerations. - -- Issue #11910: Fix test_heapq to skip the C tests when _heapq is missing. - - -What's New in Python 3.2.1 beta 1? -================================== - -*Release date: 08-May-2011* - -Core and Builtins ------------------ - -- Issue #1856: Avoid crashes and lockups when daemon threads run while the - interpreter is shutting down; instead, these threads are now killed when they - try to take the GIL. - -- Issue #9756: When calling a method descriptor or a slot wrapper descriptor, - the check of the object type doesn't read the __class__ attribute anymore. - Fix a crash if a class override its __class__ attribute (e.g. a proxy of the - str type). Patch written by Andreas Stührk. - -- Issue #10914: Initialize correctly the filesystem codec when creating a new - subinterpreter to fix a bootstrap issue with codecs implemented in Python, as - the ISO-8859-15 codec. - -- Issue #10517: After fork(), reinitialize the TLS used by the PyGILState_* - APIs, to avoid a crash with the pthread implementation in RHEL 5. Patch by - Charles-François Natali. - -- Issue #6780: fix starts/endswith error message to mention that tuples are - accepted too. - -- Issue #5057: fix a bug in the peepholer that led to non-portable pyc files - between narrow and wide builds while optimizing BINARY_SUBSCR on non-BMP chars - (e.g. "\U00012345"[0]). - -- Issue #11845: Fix typo in rangeobject.c that caused a crash in - compute_slice_indices. Patch by Daniel Urban. - -- Issue #11650: PyOS_StdioReadline() retries fgets() if it was interrupted - (EINTR), for example if the program is stopped with CTRL+z on Mac OS X. Patch - written by Charles-Francois Natali. - -- Issue #11395: io.FileIO().write() clamps the data length to 32,767 bytes on - Windows if the file is a TTY to workaround a Windows bug. The Windows console - returns an error (12: not enough space error) on writing into stdout if stdout - mode is binary and the length is greater than 66,000 bytes (or less, depending - on heap usage). - -- Issue #11320: fix bogus memory management in Modules/getpath.c, leading to a - possible crash when calling Py_SetPath(). - -- Issue #11510: Fixed optimizer bug which turned "a,b={1,1}" into "a,b=(1,1)". - -- Issue #11432: A bug was introduced in subprocess.Popen on posix systems with - 3.2.0 where the stdout or stderr file descriptor being the same as the stdin - file descriptor would raise an exception. webbrowser.open would fail. fixed. - -- Issue #11450: Don't truncate hg version info in Py_GetBuildInfo() when there - are many tags (e.g. when using mq). Patch by Nadeem Vawda. - -- Issue #11246: Fix PyUnicode_FromFormat("%V") to decode the byte string from - UTF-8 (with replace error handler) instead of ISO-8859-1 (in strict mode). - Patch written by Ray Allen. +- Issue #12011: signal.signal() and signal.siginterrupt() raise an OSError, + instead of a RuntimeError: OSError has an errno attribute. -- Issue #11286: Raise a ValueError from calling PyMemoryView_FromBuffer with a - buffer struct having a NULL data pointer. +- Issue #3709: a flush_headers method to BaseHTTPRequestHandler which manages + the sending of headers to output stream and flushing the internal headers + buffer. Patch contribution by Andrew Schaaf -- Issue #11272: On Windows, input() strips '\r' (and not only '\n'), and - sys.stdin uses universal newline (replace '\r\n' by '\n'). +- Issue #11743: Rewrite multiprocessing connection classes in pure Python. -- issue #11828: startswith and endswith don't accept None as slice index. Patch - by Torsten Becker. +- Issue #11164: Stop trying to use _xmlplus in the xml module. -- Issue #10830: Fix PyUnicode_FromFormatV("%c") for non-BMP characters on - narrow build. +- Issue #11888: Add log2 function to math module. Patch written by Mark + Dickinson. -- Check for NULL result in PyType_FromSpec. +- Issue #12012: ssl.PROTOCOL_SSLv2 becomes optional. -- Issue #11386: bytearray.pop() now throws IndexError when the bytearray is - empty, instead of OverflowError. +- Issue #8407: The signal handler writes the signal number as a single byte + instead of a nul byte into the wakeup file descriptor. So it is possible to + wait more than one signal and know which signals were raised. -Library -------- +- Issue #8407: Add pthread_kill(), sigpending() and sigwait() functions to the + signal module. -- Issue #11927: SMTP_SSL now uses port 465 by default as documented. Patch by - Kasun Herath. +- Issue #11927: SMTP_SSL now uses port 465 by default as documented. Patch + by Kasun Herath. - Issue #12002: ftplib's abort() method raises TypeError. +- Issue #11916: Add a number of MacOSX specific definitions to the errno module. + Patch by Pierre Carrier. + - Issue #11999: fixed sporadic sync failure mailbox.Maildir due to its trying to detect mtime changes by comparing to the system clock instead of to the previous value of the mtime. +- Issue #11072: added MLSD command (RFC-3659) support to ftplib. + +- Issue #8808: The IMAP4_SSL constructor now allows passing an SSLContext + parameter to control parameters of the secure channel. Patch by Sijin + Joseph. + - ntpath.samefile failed to notice that "a.txt" and "A.TXT" refer to the same file on Windows XP. As noticed in issue #10684. -- Issue #12000: When a SSL certificate has a subjectAltName without any dNSName - entry, ssl.match_hostname() should use the subject's commonName. Patch by - Nicolas Bareil. +- Issue #12000: When a SSL certificate has a subjectAltName without any + dNSName entry, ssl.match_hostname() should use the subject's commonName. + Patch by Nicolas Bareil. -- Issue #11647: objects created using contextlib.contextmanager now support more - than one call to the function when used as a decorator. Initial patch by Ysj - Ray. +- Issue #10775: assertRaises, assertRaisesRegex, assertWarns, and + assertWarnsRegex now accept a keyword argument 'msg' when used as context + managers. Initial patch by Winston Ewert. + +- Issue #10684: shutil.move used to delete a folder on case insensitive + filesystems when the source and destination name where the same except + for the case. + +- Issue #11647: objects created using contextlib.contextmanager now support + more than one call to the function when used as a decorator. Initial patch + by Ysj Ray. + +- Issue #11930: Removed deprecated time.accept2dyear variable. + Removed year >= 1000 restriction from datetime.strftime. - logging: don't define QueueListener if Python has no thread support. @@ -1431,16 +1993,39 @@ Library - Issue #11277: mmap.mmap() calls fcntl(fd, F_FULLFSYNC) on Mac OS X to get around a mmap bug with sparse files. Patch written by Steffen Daode Nurpmeso. +- Issue #8407: Add signal.pthread_sigmask() function to fetch and/or change the + signal mask of the calling thread. + - Issue #11858: configparser.ExtendedInterpolation expected lower-case section names. - Issue #11324: ConfigParser(interpolation=None) now works correctly. +- Issue #11811: ssl.get_server_certificate() is now IPv6-compatible. Patch + by Charles-François Natali. + - Issue #11763: don't use difflib in TestCase.assertMultiLineEqual if the strings are too long. - Issue #11236: getpass.getpass responds to ctrl-c or ctrl-z on terminal. +- Issue #11856: Speed up parsing of JSON numbers. + +- Issue #11005: threading.RLock()._release_save() raises a RuntimeError if the + lock was not acquired. + +- Issue #11258: Speed up ctypes.util.find_library() under Linux by a factor + of 5 to 10. Initial patch by Jonas H. + +- Issue #11382: Trivial system calls, such as dup() or pipe(), needn't + release the GIL. Patch by Charles-François Natali. + +- Issue #11223: Add threading._info() function providing informations about + the thread implementation. + +- Issue #11731: simplify/enhance email parser/generator API by introducing + policy objects. + - Issue #11768: The signal handler of the signal module only calls Py_AddPendingCall() for the first signal to fix a deadlock on reentrant or parallel calls. PyErr_SetInterrupt() writes also into the wake up file. @@ -1460,6 +2045,10 @@ Library - Issue #11474: Fix the bug with url2pathname() handling of '/C|/' on Windows. Patch by Santoso Wijaya. +- Issue #11684: complete email.parser bytes API by adding BytesHeaderParser. + +- The bz2 module now handles 4GiB+ input buffers correctly. + - Issue #9233: Fix json.loads('{}') to return a dict (instead of a list), when _json is not available. @@ -1471,17 +2060,33 @@ Library - Issue #10019: Fixed regression in json module where an indent of 0 stopped adding newlines and acted instead like 'None'. +- Issue #11186: pydoc ignores a module if its name contains a surrogate + character in the index of modules. + +- Issue #11815: Use a light-weight SimpleQueue for the result queue in + concurrent.futures.ProcessPoolExecutor. + - Issue #5162: Treat services like frozen executables to allow child spawning from multiprocessing.forking on Windows. +- logging.basicConfig now supports an optional 'handlers' argument taking an + iterable of handlers to be added to the root logger. Additional parameter + checks were also added to basicConfig. + - Issue #11814: Fix likely typo in multiprocessing.Pool._terminate(). - Issue #11747: Fix range formatting in difflib.context_diff() and difflib.unified_diff(). - Issue #8428: Fix a race condition in multiprocessing.Pool when terminating - worker processes: new processes would be spawned while the pool is being shut - down. Patch by Charles-François Natali. + worker processes: new processes would be spawned while the pool is being + shut down. Patch by Charles-François Natali. + +- Issue #2650: re.escape() no longer escapes the '_'. + +- Issue #11757: select.select() now raises ValueError when a negative timeout + is passed (previously, a select.error with EINVAL would be raised). Patch + by Charles-François Natali. - Issue #7311: fix html.parser to accept non-ASCII attribute values. @@ -1489,21 +2094,50 @@ Library multipart subparts with an 8-bit CTE into unicode instead of preserving the bytes. +- Issue #1690608: email.util.formataddr is now RFC 2047 aware: it now has a + charset parameter that defaults to utf-8 and is used as the charset for RFC + 2047 encoding when the realname contains non-ASCII characters. + - Issue #10963: Ensure that subprocess.communicate() never raises EPIPE. +- Issue #10791: Implement missing method GzipFile.read1(), allowing GzipFile + to be wrapped in a TextIOWrapper. Patch by Nadeem Vawda. + +- Issue #11707: Added a fast C version of functools.cmp_to_key(). + Patch by Filip Gruszczyński. + +- Issue #11688: Add sqlite3.Connection.set_trace_callback(). Patch by + Torsten Landschoff. + - Issue #11746: Fix SSLContext.load_cert_chain() to accept elliptic curve private keys. +- Issue #5863: Rewrite BZ2File in pure Python, and allow it to accept + file-like objects using a new ``fileobj`` constructor argument. Patch by + Nadeem Vawda. + +- unittest.TestCase.assertSameElements has been removed. + - sys.getfilesystemencoding() raises a RuntimeError if initfsencoding() was not called yet: detect bootstrap (startup) issues earlier. +- Issue #11393: Add the new faulthandler module. + - Issue #11618: Fix the timeout logic in threading.Lock.acquire() under Windows. +- Removed the 'strict' argument to email.parser.Parser, which has been + deprecated since Python 2.4. + - Issue #11256: Fix inspect.getcallargs on functions that take only keyword arguments. - Issue #11696: Fix ID generation in msilib. +- itertools.accumulate now supports an optional *func* argument for + a user-supplied binary function. + +- Issue #11692: Remove unnecessary demo functions in subprocess module. + - Issue #9696: Fix exception incorrectly raised by xdrlib.Packer.pack_int when trying to pack a negative (in-range) integer. @@ -1519,7 +2153,26 @@ Library - Issue #11635: Don't use polling in worker threads and processes launched by concurrent.futures. -- Issue #11628: cmp_to_key generated class should use __slots__ +- Issue #6811: Allow importlib to change a code object's co_filename attribute + to match the path to where the source code currently is, not where the code + object originally came from. + +- Issue #8754: Have importlib use the repr of a module name in error messages. + +- Issue #11591: Prevent "import site" from modifying sys.path when python + was started with -S. + +- collections.namedtuple() now adds a _source attribute to the generated + class. This make the source more accessible than the outdated + "verbose" option which prints to stdout but doesn't make the source + string available. + +- Issue #11371: Mark getopt error messages as localizable. Patch by Filip + Gruszczyński. + +- Issue #11333: Add __slots__ to collections ABCs. + +- Issue #11628: cmp_to_key generated class should use __slots__. - Issue #11666: let help() display named tuple attributes and methods that start with a leading underscore. @@ -1530,6 +2183,10 @@ Library - Issue #5537: Fix time2isoz() and time2netscape() functions of httplib.cookiejar for expiration year greater than 2038 on 32-bit systems. +- Issue #4391: Use proper gettext plural forms in optparse. + +- Issue #11127: Raise a TypeError when trying to pickle a socket object. + - Issue #11563: Connection:close header is sent by requests using URLOpener class which helps in closing of sockets after connection is over. Patch contributions by Jeff McNeil and Nadeem Vawda. @@ -1540,6 +2197,8 @@ Library - Issue #5421: Fix misleading error message when one of socket.sendto()'s arguments has the wrong type. Patch by Nikita Vetoshkin. +- Issue #10812: Add some extra posix functions to the os module. + - Issue #10979: unittest stdout buffering now works with class and module setup and teardown. @@ -1552,75 +2211,154 @@ Library relative to Python2 and the result is now the same as it was in Python2. - Issue #9298: base64 bodies weren't being folded to line lengths less than 78, - which was a regression relative to Python2. Unlike Python2, the last line of - the folded body now ends with a carriage return. + which was a regression relative to Python2. Unlike Python2, the last line + of the folded body now ends with a carriage return. - Issue #11560: shutil.unpack_archive now correctly handles the format parameter. Patch by Evan Dandrea. +- Issue #5870: Add `subprocess.DEVNULL` constant. + - Issue #11133: fix two cases where inspect.getattr_static can trigger code execution. Patch by Andreas Stührk. - Issue #11569: use absolute path to the sysctl command in multiprocessing to - ensure that it will be found regardless of the shell PATH. This ensures that - multiprocessing.cpu_count works on default installs of MacOSX. + ensure that it will be found regardless of the shell PATH. This ensures + that multiprocessing.cpu_count works on default installs of MacOSX. - Issue #11501: disutils.archive_utils.make_zipfile no longer fails if zlib is not installed. Instead, the zipfile.ZIP_STORED compression is used to create the ZipFile. Patch by Natalia B. Bidart. +- Issue #11289: `smtp.SMTP` class becomes a context manager so it can be used + in a `with` statement. Contributed by Giampaolo Rodola. + - Issue #11554: Fixed support for Japanese codecs; previously the body output encoding was not done if euc-jp or shift-jis was specified as the charset. -- Issue #11500: Fixed a bug in the os x proxy bypass code for fully qualified IP - addresses in the proxy exception list. +- Issue #11509: Significantly increase test coverage of fileinput. + Patch by Denver Coneybeare at PyCon 2011 Sprints. + +- Issue #11407: `TestCase.run` returns the result object used or created. + Contributed by Janathan Hartley. + +- Issue #11500: Fixed a bug in the os x proxy bypass code for fully qualified + IP addresses in the proxy exception list. + +- Issue #11491: dbm.error is no longer raised when dbm.open is called with + the "n" as the flag argument and the file exists. The behavior matches + the documentation and general logic. -- Issue #11491: dbm.error is no longer raised when dbm.open is called with the - "n" as the flag argument and the file exists. The behavior matches the - documentation and general logic. +- Issue #1162477: Postel Principle adjustment to email date parsing: handle the + fact that some non-compliant MUAs use '.' instead of ':' in time specs. -- Issue #11131: Fix sign of zero in decimal.Decimal plus and minus operations - when the rounding mode is ROUND_FLOOR. +- Issue #11131: Fix sign of zero in decimal.Decimal plus and minus + operations when the rounding mode is ROUND_FLOOR. + +- Issue #9935: Speed up pickling of instances of user-defined classes. - Issue #5622: Fix curses.wrapper to raise correct exception if curses initialization fails. +- Issue #11408: In threading.Lock.acquire(), only call gettimeofday() when + really necessary. Patch by Charles-François Natali. + - Issue #11391: Writing to a mmap object created with ``mmap.PROT_READ|mmap.PROT_EXEC`` would segfault instead of raising a TypeError. Patch by Charles-François Natali. -- Issue #11306: mailbox in certain cases adapts to an inability to open certain - files in read-write mode. Previously it detected this by checking for EACCES, - now it also checks for EROFS. +- Issue #9795: add context manager protocol support for nntplib.NNTP class. + +- Issue #11306: mailbox in certain cases adapts to an inability to open + certain files in read-write mode. Previously it detected this by + checking for EACCES, now it also checks for EROFS. + +- Issue #11265: asyncore now correctly handles EPIPE, EBADF and EAGAIN errors + on accept(), send() and recv(). + +- Issue #11377: Deprecate platform.popen() and reimplement it with os.popen(). -- Issue #11265: asyncore now correctly handles EPIPE, EBADF and EAGAIN errors on - accept(), send() and recv(). +- Issue #8513: On UNIX, subprocess supports bytes command string. + +- Issue #10866: Add socket.sethostname(). Initial patch by Ross Lagerwall. + +- Issue #11140: Lock.release() now raises a RuntimeError when attempting + to release an unacquired lock, as claimed in the threading documentation. + The _thread.error exception is now an alias of RuntimeError. Patch by + Filip Gruszczyński. Patch for _dummy_thread by Aymeric Augustin. + +- Issue #8594: ftplib now provides a source_address parameter to specify which + (address, port) to bind to before connecting. - Issue #11326: Add the missing connect_ex() implementation for SSL sockets, and make it work for non-blocking connects. +- Issue #11297: Add collections.ChainMap(). + +- Issue #10755: Add the posix.flistdir() function. Patch by Ross Lagerwall. + +- Issue #4761: Add the *at() family of functions (openat(), etc.) to the posix + module. Patch by Ross Lagerwall. + - Issue #7322: Trying to read from a socket's file-like object after a timeout occurred now raises an error instead of silently losing data. +- Issue #11291: poplib.POP no longer suppresses errors on quit(). + +- Issue #11177: asyncore's create_socket() arguments can now be omitted. + +- Issue #6064: Add a ``daemon`` keyword argument to the threading.Thread + and multiprocessing.Process constructors in order to override the + default behaviour of inheriting the daemonic property from the current + thread/process. + - Issue #10956: Buffered I/O classes retry reading or writing after a signal has arrived and the handler returned successfully. +- Issue #10784: New os.getpriority() and os.setpriority() functions. + +- Issue #11114: Fix catastrophic performance of tell() on text files (up + to 1000x faster in some cases). It is still one to two order of magnitudes + slower than binary tell(). + +- Issue #10882: Add os.sendfile function. + +- Issue #10868: Allow usage of the register method of an ABC as a class + decorator. + - Issue #11224: Fixed a regression in tarfile that affected the file-like objects returned by TarFile.extractfile() regarding performance, memory consumption and failures with the stream interface. +- Issue #10924: Adding salt and Modular Crypt Format to crypt library. + Moved old C wrapper to _crypt, and added a Python wrapper with + enhanced salt generation and simpler API for password generation. + - Issue #11074: Make 'tokenize' so it can be reloaded. +- Issue #11085: Moved collections abstract base classes into a separate + module called collections.abc, following the pattern used by importlib.abc. + For backwards compatibility, the names are imported into the collections + module. + - Issue #4681: Allow mmap() to work on file sizes and offsets larger than 4GB, even on 32-bit builds. Initial patch by Ross Lagerwall, adapted for 32-bit Windows. +- Issue #11169: compileall module uses repr() to format filenames and paths to + escape surrogate characters and show spaces. + - Issue #11089: Fix performance issue limiting the use of ConfigParser() with large config files. - Issue #10276: Fix the results of zlib.crc32() and zlib.adler32() on buffers larger than 4GB. Patch by Nadeem Vawda. +- Issue #11388: Added a clear() method to MutableSequence + +- Issue #11174: Add argparse.MetavarTypeHelpFormatter, which uses type names + for the names of optional and positional arguments in help messages. + - Issue #9348: Raise an early error if argparse nargs and metavar don't match. - Issue #8982: Improve the documentation for the argparse Namespace object. @@ -1632,28 +2370,137 @@ Library - Issue #9347: Fix formatting for tuples in argparse type= error messages. +- Issue #12191: Added shutil.chown() to change user and/or group owner of a + given path also specifying their names. + +- Issue #13988: The _elementtree accelerator is used whenever available. + Now xml.etree.cElementTree becomes a deprecated alias to ElementTree. + Build ----- +- Issue #6807: Run msisupport.mak earlier. + +- Issue #10580: Minor grammar change in Windows installer. + +- Issue #13326: Clean __pycache__ directories correctly on OpenBSD. + +- PEP 393: the configure option --with-wide-unicode is removed. + +- Issue #12852: Set _XOPEN_SOURCE to 700, instead of 600, to get POSIX 2008 + functions on OpenBSD (e.g. fdopendir). + +- Issue #11863: Remove support for legacy systems deprecated in Python 3.2 + (following PEP 11). These systems are systems using Mach C Threads, + SunOS lightweight processes, GNU pth threads and IRIX threads. + +- Issue #8746: Correct faulty configure checks so that os.chflags() and + os.lchflags() are once again built on systems that support these + functions (*BSD and OS X). Also add new stat file flags for OS X + (UF_HIDDEN and UF_COMPRESSED). + +- Issue #10645: Installing Python does no longer create a + Python-X.Y.Z-pyX.Y.egg-info file in the lib-dynload directory. + +- Do not accidentally include the directory containing sqlite.h twice when + building sqlite3. + +- Issue #11217: For 64-bit/32-bit Mac OS X universal framework builds, + ensure "make install" creates symlinks in --prefix bin for the "-32" + files in the framework bin directory like the installer does. + +- Issue #11347: Use --no-as-needed when linking libpython3.so. + - Issue #11411: Fix 'make DESTDIR=' with a relative destination. -- Issue #11268: Prevent Mac OS X Installer failure if Documentation package had - previously been installed. +- Issue #11268: Prevent Mac OS X Installer failure if Documentation + package had previously been installed. + +- Issue #11495: OSF support is eliminated. It was deprecated in Python 3.2. + IDLE ---- -- Issue #11718: IDLE's open module dialog couldn't find the __init__.py file in - a package. +- Issue #11718: IDLE's open module dialog couldn't find the __init__.py + file in a package. Tools/Demos ----------- +- Issue #14053: patchcheck.py ("make patchcheck") now works with MQ patches. + Patch by Francisco Martín Brugué. + +- Issue #13930: 2to3 is now able to write its converted output files to another + directory tree as well as copying unchanged files and altering the file + suffix. See its new -o, -W and --add-suffix options. This makes it more + useful in many automated code translation workflows. + +- Issue #13628: python-gdb.py is now able to retrieve more frames in the Python + traceback if Python is optimized. + +- Issue #11996: libpython (gdb), replace "py-bt" command by "py-bt-full" and + add a smarter "py-bt" command printing a classic Python traceback. + - Issue #11179: Make ccbench work under Python 3.1 and 2.7 again. +- Issue #10639: reindent.py no longer converts newlines and will raise + an error if attempting to convert a file with mixed newlines. + "--newline" option added to specify new line character. + Extension Modules ----------------- +- Issue #13840: The error message produced by ctypes.create_string_buffer + when given a Unicode string has been fixed. + +- Issue #9975: socket: Fix incorrect use of flowinfo and scope_id. Patch by + Vilmos Nebehaj. + +- Issue #7777: socket: Add Reliable Datagram Sockets (PF_RDS) support. + +- Issue #13159: FileIO and BZ2Compressor/BZ2Decompressor now use a linear-time + buffer growth strategy instead of a quadratic-time one. + +- Issue #10141: socket: Add SocketCAN (PF_CAN) support. Initial patch by + Matthias Fuchs, updated by Tiago Gonçalves. + +- Issue #13070: Fix a crash when a TextIOWrapper caught in a reference cycle + would be finalized after the reference to its underlying BufferedRWPair's + writer got cleared by the GC. + +- Issue #12881: ctypes: Fix segfault with large structure field names. + +- Issue #13058: ossaudiodev: fix a file descriptor leak on error. Patch by + Thomas Jarosch. + +- Issue #13013: ctypes: Fix a reference leak in PyCArrayType_from_ctype. + Thanks to Suman Saha for finding the bug and providing a patch. + +- Issue #13022: Fix: _multiprocessing.recvfd() doesn't check that + file descriptor was actually received. + +- Issue #1172711: Add 'long long' support to the array module. + Initial patch by Oren Tirosh and Hirokazu Yamamoto. + +- Issue #12483: ctypes: Fix a crash when the destruction of a callback + object triggers the garbage collector. + +- Issue #12950: Fix passing file descriptors in multiprocessing, under + OpenIndiana/Illumos. + +- Issue #12764: Fix a crash in ctypes when the name of a Structure field is not + a string. + +- Issue #11241: subclasses of ctypes.Array can now be subclassed. + +- Issue #9651: Fix a crash when ctypes.create_string_buffer(0) was passed to + some functions like file.write(). + +- Issue #10309: Define _GNU_SOURCE so that mremap() gets the proper + signature. Without this, architectures where sizeof void* != sizeof int are + broken. Patch given by Hallvard B Furuseth. + - Issue #12051: Fix segfault in json.dumps() while encoding highly-nested objects using the C accelerations. @@ -1666,35 +2513,184 @@ Extension Modules Tests ----- +- Issue #11689: Fix a variable scoping error in an sqlite3 test + +- Issue #13786: Remove unimplemented 'trace' long option from regrtest.py. + +- Issue #13725: Fix regrtest to recognize the documented -d flag. + Patch by Erno Tukia. + +- Issue #13304: Skip test case if user site-packages disabled (-s or + PYTHONNOUSERSITE). (Patch by Carl Meyer) + +- Issue #5661: Add a test for ECONNRESET/EPIPE handling to test_asyncore. Patch + by Xavier de Gaye. + +- Issue #13218: Fix test_ssl failures on Debian/Ubuntu. + +- Re-enable lib2to3's test_parser.py tests, though with an expected failure + (see issue 13125). + +- Issue #12656: Add tests for IPv6 and Unix sockets to test_asyncore. + +- Issue #6484: Add unit tests for mailcap module (patch by Gregory Nofi) + +- Issue #11651: Improve the Makefile test targets to run more of the test suite + more quickly. The --multiprocess option is now enabled by default, reducing + the amount of time needed to run the tests. "make test" and "make quicktest" + now include some resource-intensive tests, but no longer run the test suite + twice to check for bugs in .pyc generation. Tools/scripts/run_test.py provides + an easy platform-independent way to run test suite with sensible defaults. + +- Issue #12331: The test suite for the packaging module can now run from an + installed Python. + +- Issue #12331: The test suite for lib2to3 can now run from an installed + Python. + +- Issue #12626: In regrtest, allow to filter tests using a glob filter + with the ``-m`` (or ``--match``) option. This works with all test cases + using the unittest module. This is useful with long test suites + such as test_io or test_subprocess. + +- Issue #12624: It is now possible to fail after the first failure when + running in verbose mode (``-v`` or ``-W``), by using the ``--failfast`` + (or ``-G``) option to regrtest. This is useful with long test suites + such as test_io or test_subprocess. + +- Issue #12587: Correct faulty test file and reference in test_tokenize. + (Patch by Robert Xiao) + +- Issue #12573: Add resource checks for dangling Thread and Process objects. + +- Issue #12549: Correct test_platform to not fail when OS X returns 'x86_64' + as the processor type on some Mac systems. + +- Skip network tests when getaddrinfo() returns EAI_AGAIN, meaning a temporary + failure in name resolution. + +- Issue #11812: Solve transient socket failure to connect to 'localhost' + in test_telnetlib.py. + +- Solved a potential deadlock in test_telnetlib.py. Related to issue #11812. + +- Avoid failing in test_robotparser when mueblesmoraleda.com is flaky and + an overzealous DNS service (e.g. OpenDNS) redirects to a placeholder + Web site. + +- Avoid failing in test_urllibnet.test_bad_address when some overzealous + DNS service (e.g. OpenDNS) resolves a non-existent domain name. The test + is now skipped instead. + +- Issue #12440: When testing whether some bits in SSLContext.options can be + reset, check the version of the OpenSSL headers Python was compiled against, + rather than the runtime version of the OpenSSL library. + +- Issue #11512: Add a test suite for the cgitb module. Patch by Robbie Clemons. + +- Issue #12497: Install test/data to prevent failures of the various codecmaps + tests. + +- Issue #12496: Install test/capath directory to prevent test_connect_capath + testcase failure in test_ssl. + +- Issue #12469: Run wakeup and pending signal tests in a subprocess to run the + test in a fresh process with only one thread and to not change signal + handling of the parent process. + +- Issue #8716: Avoid crashes caused by Aqua Tk on OSX when attempting to run + test_tk or test_ttk_guionly under a username that is not currently logged + in to the console windowserver (as may be the case under buildbot or ssh). + +- Issue #12407: Explicitly skip test_capi.EmbeddingTest under Windows. + +- Issue #12400: regrtest -W doesn't rerun the tests twice anymore, but captures + the output and displays it on failure instead. regrtest -v doesn't print the + error twice anymore if there is only one error. + +- Issue #12141: Install copies of template C module file so that + test_build_ext of test_distutils and test_command_build_ext of + test_packaging are no longer silently skipped when + run outside of a build directory. + +- Issue #8746: Add additional tests for os.chflags() and os.lchflags(). + Patch by Garrett Cooper. + +- Issue #10736: Fix test_ttk test_widgets failures with Cocoa Tk 8.5.9 + 2.8 + on Mac OS X. (Patch by Ronald Oussoren) + +- Issue #12057: Add tests for ISO 2022 codecs (iso2022_jp, iso2022_jp_2, + iso2022_kr). + +- Issue #12096: Fix a race condition in test_threading.test_waitfor(). Patch + written by Charles-François Natali. + +- Issue #11614: import __hello__ prints "Hello World!". Patch written by + Andreas Stührk. + +- Issue #5723: Improve json tests to be executed with and without accelerations. + +- Issue #12041: Make test_wait3 more robust. + - Issue #11873: Change regex in test_compileall to fix occasional failures when when the randomly generated temporary path happened to match the regex. +- Issue #11958: Fix FTP tests for IPv6, bind to "::1" instead of "localhost". + Patch written by Charles-Francois Natali. + +- Issue #8407, #11859: Fix tests of test_io using threads and an alarm: use + pthread_sigmask() to ensure that the SIGALRM signal is received by the main + thread. + +- Issue #11811: Factor out detection of IPv6 support on the current host + and make it available as ``test.support.IPV6_ENABLED``. Patch by + Charles-François Natali. + - Issue #10914: Add a minimal embedding test to test_capi. -- Issue #11790: Fix sporadic failures in - test_multiprocessing.WithProcessesTestCondition. +- Issue #11223: Skip test_lock_acquire_interruption() and + test_rlock_acquire_interruption() of test_threadsignals if a thread lock is + implemented using a POSIX mutex and a POSIX condition variable. A POSIX + condition variable cannot be interrupted by a signal (e.g. on Linux, the + futex system call is restarted). + +- Issue #11790: Fix sporadic failures in test_multiprocessing.WithProcessesTestCondition. - Fix possible "file already exists" error when running the tests in parallel. - Issue #11719: Fix message about unexpected test_msilib skip on non-Windows platforms. Patch by Nadeem Vawda. +- Issue #11727: Add a --timeout option to regrtest: if a test takes more than + TIMEOUT seconds, dumps the traceback of all threads and exits. + - Issue #11653: fix -W with -j in regrtest. +- The email test suite now lives in the Lib/test/test_email package. The test + harness code has also been modernized to allow use of new unittest features. + +- regrtest now discovers test packages as well as test modules. + - Issue #11577: improve test coverage of binhex.py. Patch by Arkady Koplyarov. +- New test_crashers added to exercise the scripts in the Lib/test/crashers + directory and confirm they fail as expected + - Issue #11578: added test for the timeit module. Patch by Michael Henry. - Issue #11503: improve test coverage of posixpath.py. Patch by Evan Dandrea. -- Issue #11505: improves test coverage of string.py. Patch by Alicia - Arlen. +- Issue #11505: improves test coverage of string.py, increases granularity of + string.Formatter tests. Initial patch by Alicia Arlen. - Issue #11548: Improve test coverage of the shutil module. Patch by Evan Dandrea. - Issue #11554: Reactivated test_email_codecs. +- Issue #11505: improves test coverage of string.py. Patch by Alicia + Arlen + - Issue #11490: test_subprocess:test_leaking_fds_on_error no longer gives a false positive if the last directory in the path is inaccessible. @@ -1707,12 +2703,61 @@ Tests - Issue #9931: Fix hangs in GUI tests under Windows in certain conditions. Patch by Hirokazu Yamamoto. +- Issue #10512: Properly close sockets under test.test_cgi. + +- Issue #10992: Make tests pass under coverage. + - Issue #10826: Prevent sporadic failure in test_subprocess on Solaris due to open door files. +- Issue #10990: Prevent tests from clobbering a set trace function. + +C-API +----- + +- Add PyObject_GenericGetDict and PyObject_GeneriSetDict. They are generic + implementations for the getter and setter of a ``__dict__`` descriptor of C + types. + +- Issue #13727: Add 3 macros to access PyDateTime_Delta members: + PyDateTime_DELTA_GET_DAYS, PyDateTime_DELTA_GET_SECONDS, + PyDateTime_DELTA_GET_MICROSECONDS. + +- Issue #10542: Add 4 macros to work with surrogates: Py_UNICODE_IS_SURROGATE, + Py_UNICODE_IS_HIGH_SURROGATE, Py_UNICODE_IS_LOW_SURROGATE, + Py_UNICODE_JOIN_SURROGATES. + +- Issue #12724: Add Py_RETURN_NOTIMPLEMENTED macro for returning NotImplemented. + +- PY_PATCHLEVEL_REVISION has been removed, since it's meaningless with + Mercurial. + +- Issue #12173: The first argument of PyImport_ImportModuleLevel is now `const + char *` instead of `char *`. + +- Issue #12380: PyArg_ParseTuple now accepts a bytearray for the 'c' format. + Documentation ------------- +- Issues #13491 and #13995: Fix many errors in sqlite3 documentation. + Initial patch for #13491 by Johannes Vogel. + +- Issue #13402: Document absoluteness of sys.executable. + +- Issue #13883: PYTHONCASEOK also works on OS X. + +- Issue #12949: Document the kwonlyargcount argument for the PyCode_New + C API function. + +- Issue #13513: Fix io.IOBase documentation to correctly link to the + io.IOBase.readline method instead of the readline module. + +- Issue #13237: Reorganise subprocess documentation to emphasise convenience + functions and the most commonly needed arguments to Popen. + +- Issue #13141: Demonstrate recommended style for socketserver examples. + - Issue #11818: Fix tempfile examples for Python 3. @@ -1944,10 +2989,6 @@ Library - Issue #10154, #10090: change the normalization of UTF-8 to "UTF-8" instead of "UTF8" in the locale module as the latter is not supported MacOSX and OpenBSD. -- Issue #10684: shutil.move used to delete a folder on case insensitive - filesystems when the source and destination name where the same except - for the case. - - Issue #10907: Warn OS X 10.6 IDLE users to use ActiveState Tcl/Tk 8.5, rather than the currently problematic Apple-supplied one, when running with the 64-/32-bit installer variant. @@ -2104,6 +3145,9 @@ Library C-API ----- +- PyObject_CallMethod now passes along any underlying AttributeError from + PyObject_GetAttr, instead of replacing it with something less informative + - Issue #10913: Deprecate misleading functions PyEval_AcquireLock() and PyEval_ReleaseLock(). The thread-state aware APIs should be used instead. @@ -2155,6 +3199,8 @@ Tools/Demos Tests ----- +- Issue #11910: Fix test_heapq to skip the C tests when _heapq is missing. + - Fix test_startfile to wait for child process to terminate before finishing. - Issue #10822: Fix test_posix:test_getgroups failure under Solaris. Patch @@ -2655,6 +3701,8 @@ Core and Builtins Library ------- +- Issue #12943: python -m tokenize support has been added to tokenize. + - Issue #10465: fix broken delegating of attributes by gzip._PaddedFile. - Issue #10356: Decimal.__hash__(-1) should return -2. |