Library
-------
-- Issue #16248: Disable code execution from the user's home directory by
- tkinter when the -E flag is passed to Python. Patch by Zachary Ware.
+ - Issue #14984: On POSIX systems, when netrc is called without a filename
+ argument (and therefore is reading the user's $HOME/.netrc file), it now
+ enforces the same security rules as typical ftp clients: the .netrc file must
+ be owned by the user that owns the process and must not be readable by any
+ other user.
+
+- Issue #17324: Fix http.server's request handling case on trailing '/'. Patch
+ contributed by Vajrasky Kok.
-- Issue #16042: CVE-2013-1752: smtplib: Limit amount of data read by
- limiting the call to readline(). Original patch by Christian Heimes.
+- Issue #19018: The heapq.merge() function no longer suppresses IndexError
+ in the underlying iterables.
-Extension Modules
------------------
+- Issue #18784: The uuid module no more attempts to load libc via ctypes.CDLL,
+ if all necessary functions are already found in libuuid.
+ Patch by Evgeny Sologubov.
-- Issue #18709: Fix CVE-2013-4238. The SSL module now handles NULL bytes
- inside subjectAltName correctly. Formerly the module has used OpenSSL's
- GENERAL_NAME_print() function to get the string represention of ASN.1
- strings for `rfc822Name` (email), `dNSName` (DNS) and
- `uniformResourceIdentifier` (URI).
+- Issue #14971: unittest test discovery no longer gets confused when a function
+ has a different __name__ than its name in the TestCase class dictionary.
+- Issue #18672: Fixed format specifiers for Py_ssize_t in debugging output in
+ the _sre module.
-What's New in Python 2.6.8?
-===========================
+- Issue #18830: inspect.getclasstree() no more produces duplicated entries even
+ when input list contains duplicates.
-*Release date: 2012-04-10*
+- Issue #18909: Fix _tkinter.tkapp.interpaddr() on Windows 64-bit, don't cast
+ 64-bit pointer to long (32 bits).
-No changes since 2.6.8rc2.
+- Issue #18876: The FileIO.mode attribute now better reflects the actual mode
+ under which the file was opened. Patch by Erik Bray.
+- Issue #18851: Avoid a double close of subprocess pipes when the child
+ process fails starting.
-What's New in Python 2.6.8 rc 2?
-================================
+- Issue #18418: After fork(), reinit all threads states, not only active ones.
+ Patch by A. Jesse Jiryu Davis.
-*Release date: 2012-03-17*
+- Issue #11973: Fix a problem in kevent. The flags and fflags fields are now
+ properly handled as unsigned.
-Library
--------
+- Issue #16809: Fixed some tkinter incompabilities with Tcl/Tk 8.6.
-- 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 #16809: Tkinter's splitlist() and split() methods now accept Tcl_Obj
+ argument.
+- Issue #17119: Fixed integer overflows when processing large Unicode strings
+ and tuples in the tkinter module.
-What's New in Python 2.6.8 rc 1?
-================================
+- Issue #15233: Python now guarantees that callables registered with the atexit
+ module will be called in a deterministic order.
-*Release date: 2012-02-23*
+- Issue #18747: Re-seed OpenSSL's pseudo-random number generator after fork.
+ A pthread_atfork() parent handler is used to seed the PRNG with pid, time
+ and some stack data.
-Core and Builtins
------------------
+- Issue #8865: Concurrent invocation of select.poll.poll() now raises a
+ RuntimeError exception. Patch by Christian Schubert.
-- Issue #13703: oCERT-2011-003 CVE-2012-1150: 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 #13461: Fix a crash in the TextIOWrapper.tell method on 64-bit
+ platforms. Patch by Yogesh Chaudhari.
-Library
--------
+- Issue #18777: The ssl module now uses the new CRYPTO_THREADID API of
+ OpenSSL 1.0.0+ instead of the deprecated CRYPTO id callback function.
-- Issue #14001: CVE-2012-0845: xmlrpc: Fix an endless loop in
- SimpleXMLRPCServer upon malformed POST request.
+- Issue #18768: Correct doc string of RAND_edg(). Patch by Vajrasky Kok.
-- Issue #13885: CVE-2011-3389: the _ssl module would always disable the CBC
- IV attack countermeasure.
+- Issue #18178: Fix ctypes on BSD. dlmalloc.c was compiled twice which broke
+ malloc weak symbols.
+- Issue #18709: Fix CVE-2013-4238. The SSL module now handles NULL bytes
+ inside subjectAltName correctly. Formerly the module has used OpenSSL's
+ GENERAL_NAME_print() function to get the string represention of ASN.1
+ strings for ``rfc822Name`` (email), ``dNSName`` (DNS) and
+ ``uniformResourceIdentifier`` (URI).
-What's New in Python 2.6.7?
-===========================
+- Issue #18756: Improve error reporting in os.urandom() when the failure
+ is due to something else than /dev/urandom not existing (for example,
+ exhausting the file descriptor limit).
-*Release date: 2011-06-03*
+- Fix tkinter regression introduced by the security fix in issue #16248.
-*NOTE: Python 2.6 is in security-fix-only mode. No non-security bug fixes are
- allowed. Python 2.6.7 and beyond will be source only releases.*
+- Issue #18676: Change 'positive' to 'non-negative' in queue.py put and get
+ docstrings and ValueError messages. Patch by Zhongyue Luo
-* No changes since 2.6.7rc2.
+- Issue #17998: Fix an internal error in regular expression engine.
+- Issue #17557: Fix os.getgroups() to work with the modified behavior of
+ getgroups(2) on OS X 10.8. Original patch by Mateusz Lenik.
-What's New in Python 2.6.7 rc 2?
-================================
+- Issue #18455: multiprocessing should not retry connect() with same socket.
-*Release date: 2011-05-20*
+- Issue #18513: Fix behaviour of cmath.rect w.r.t. signed zeros on OS X 10.8 +
+ gcc.
-*NOTE: Python 2.6 is in security-fix-only mode. No non-security bug fixes are
- allowed. Python 2.6.7 and beyond will be source only releases.*
+- Issue #18101: Tcl.split() now process Unicode strings nested in a tuple as it
+ do with byte strings.
+- Issue #18347: ElementTree's html serializer now preserves the case of
+ closing tags.
-Library
--------
+- Issue #17261: Ensure multiprocessing's proxies use proper address.
-- Issue #11662: Make urllib and urllib2 ignore redirections if the
- scheme is not HTTP, HTTPS or FTP (CVE-2011-1521).
+- Issue #17097: Make multiprocessing ignore EINTR.
-- Issue #11442: Add a charset parameter to the Content-type in SimpleHTTPServer
- to avoid XSS attacks.
+- Issue #18155: The csv module now correctly handles csv files that use
+ a delimiter character that has a special meaning in regexes, instead of
+ throwing an exception.
+- Issue #18135: ssl.SSLSocket.write() now raises an OverflowError if the input
+ string in longer than 2 gigabytes. The ssl module does not support partial
+ write.
-What's New in Python 2.6.7 rc 1?
-================================
+- Issue #18167: cgi.FieldStorage no longer fails to handle multipart/form-data
+ when \r\n appears at end of 65535 bytes without other newlines.
-*Release date: 2011-05-06*
+- Issue #17403: urllib.parse.robotparser normalizes the urls before adding to
+ ruleline. This helps in handling certain types invalid urls in a conservative
+ manner. Patch contributed by Mher Movsisyan.
-Library
--------
+- Implement inequality on weakref.WeakSet.
-- Issue #9129: smtpd.py is vulnerable to DoS attacks deriving from missing
- error handling when accepting a new connection.
+- Issue #17981: Closed socket on error in SysLogHandler.
+- Issue #18015: Fix unpickling of 2.7.3 and 2.7.4 namedtuples.
-What's New in Python 2.6.6?
-===========================
+- Issue #17754: Make ctypes.util.find_library() independent of the locale.
-*Release date: 2010-08-24*
+- Fix typos in the multiprocessing module.
-* No changes since 2.6.6rc2.
+- Issue #17269: Workaround for socket.getaddrinfo crash on MacOS X
+ with port None or "0" and flags AI_NUMERICSERV.
+- Issue #18080: When building a C extension module on OS X, if the compiler
+ is overriden with the CC environment variable, use the new compiler as
+ the default for linking if LDSHARED is not also overriden. This restores
+ Distutils behavior introduced in 2.7.3 and inadvertently dropped in 2.7.4.
-What's New in Python 2.6.6 rc 2?
-================================
+- Issue #18071: C extension module builds on OS X could fail with TypeError
+ if the Xcode command line tools were not installed.
-*Release date: 2010-08-16*
+- Issue #18113: Fixed a refcount leak in the curses.panel module's
+ set_userptr() method. Reported by Atsuo Ishimoto.
-Library
--------
+- Issue #18849: Fixed a Windows-specific tempfile bug where collision with an
+ existing directory caused mkstemp and related APIs to fail instead of
+ retrying. Report and fix by Vlad Shcherbina.
-- Issue #9600: Don't use relative import for _multiprocessing on Windows.
-- Issue #8688: Revert regression introduced in 2.6.6rc1 (making Distutils
- recalculate MANIFEST every time).
+Tools/Demos
+-----------
-- Issue #5798: Handle select.poll flag oddities properly on OS X.
- This fixes test_asynchat and test_smtplib failures on OS X.
+- Issue #18817: Fix a resource warning in Lib/aifc.py demo.
-- Issue #9543: Fix regression in socket.py introduced in Python 2.6.6 rc 1
- in r83624.
+- Issue #18439: Make patchcheck work on Windows for ACKS, NEWS.
-Extension Modules
------------------
+- Issue #18448: Fix a typo in Demo/newmetaclasses/Eiffel.py.
-- Issue #7567: Don't call `setupterm' twice.
+- Issue #12990: The "Python Launcher" on OSX could not launch python scripts
+ that have paths that include wide characters.
-Tests
+Build
-----
-- Issue #9568: Fix test_urllib2_localnet on OS X 10.3.
+- Issue #16067: Add description into MSI file to replace installer's temporary name.
-- Issue #9145: Fix test_coercion failure in refleak runs.
+- Issue #18256: Compilation fix for recent AIX releases. Patch by
+ David Edelsohn.
-- Issue #8433: Fix test_curses failure caused by newer versions of
- ncurses returning ERR from getmouse() when there are no mouse
- events available.
+- Issue #18098: The deprecated OS X Build Applet.app fails to build on
+ OS X 10.8 systems because the Apple-deprecated QuickDraw headers have
+ been removed from Xcode 4. Skip building it in this case.
+IDLE
+----
-What's New in Python 2.6.6 rc 1?
-================================
+- Issue #18988: The "Tab" key now works when a word is already autocompleted.
-*Release date: 2010-08-03*
+- Issue #18489: Add tests for SearchEngine. Original patch by Phil Webster.
-Core and Builtins
------------------
+- Issue #18429: Format / Format Paragraph, now works when comment blocks
+ are selected. As with text blocks, this works best when the selection
+ only includes complete lines.
-- Issue #6213: Implement getstate() and setstate() methods of utf-8-sig and
- utf-16 incremental encoders.
+- Issue #18226: Add docstrings and unittests for FormatParagraph.py.
+ Original patches by Todd Rovito and Phil Webster.
-- Issue #8271: during the decoding of an invalid UTF-8 byte sequence, only the
- start byte and the continuation byte(s) are now considered invalid, instead
- of the number of bytes specified by the start byte.
- E.g.: '\xf1\x80AB'.decode('utf-8', 'replace') now returns u'\ufffdAB' and
- replaces with U+FFFD only the start byte ('\xf1') and the continuation byte
- ('\x80') even if '\xf1' is the start byte of a 4-bytes sequence.
- Previous versions returned a single u'\ufffd'.
+- Issue #18279: Format - Strip trailing whitespace no longer marks a file as
+ changed when it has not been changed. This fix followed the addition of a
+ test file originally written by Phil Webster (the issue's main goal).
-- Issue #9058: Remove assertions about INT_MAX in UnicodeDecodeError.
+- Issue #18539: Calltips now work for float default arguments.
-- Issue #8941: decoding big endian UTF-32 data in UCS-2 builds could crash
- the interpreter with characters outside the Basic Multilingual Plane
- (higher than 0x10000).
+- Issue #7136: In the Idle File menu, "New Window" is renamed "New File".
+ Patch by Tal Einat, Roget Serwy, and Todd Rovito.
-- Issue #8627: Remove bogus "Overriding __cmp__ blocks inheritance of
- __hash__ in 3.x" warning. Also fix "XXX undetected error" that
- arises from the "Overriding __eq__ blocks inheritance ..." warning
- when turned into an exception: in this case the exception simply
- gets ignored.
+- Issue #8515: Set __file__ when run file in IDLE.
+ Initial patch by Bruce Frederiksen.
-- Issue #4108: In urllib.robotparser, if there are multiple 'User-agent: *'
- entries, consider the first one.
+- Issue #5492: Avoid traceback when exiting IDLE caused by a race condition.
-- Issue #9354: Provide getsockopt() in asyncore's file_wrapper.
+- Issue #17511: Keep IDLE find dialog open after clicking "Find Next".
+ Original patch by Sarah K.
-- In the unicode/str.format(), raise a ValueError when indexes to arguments are
- too large.
+- Issue #15392: Create a unittest framework for IDLE.
+ Preliminary patch by Rajagopalasarma Jayakrishnan
+ See Lib/idlelib/idle_test/README.txt for how to run Idle tests.
-- Issue #3798: Write sys.exit() message to sys.stderr to use stderr encoding
- and error handler, instead of writing to the C stderr file in utf-8
+- Issue #14146: Highlight source line while debugging on Windows.
-- Issue #7902: When using explicit relative import syntax, don't try
- implicit relative import semantics.
+- Issue #17532: Always include Options menu for IDLE on OS X.
+ Patch by Guilherme Simões.
-- Issue #7079: Fix a possible crash when closing a file object while using
- it from another thread. Patch by Daniel Stutzbach.
+Tests
+-----
-- Issue #1533: fix inconsistency in range function argument
- processing: any non-float non-integer argument is now converted to
- an integer (if possible) using its __int__ method. Previously, only
- small arguments were treated this way; larger arguments (those whose
- __int__ was outside the range of a C long) would produce a TypeError.
+- Issue #18792: Use "127.0.0.1" or "::1" instead of "localhost" as much as
+ possible, since "localhost" goes through a DNS lookup under recent Windows
+ versions.
-- Issue #8417: Raise an OverflowError when an integer larger than sys.maxsize
- is passed to bytearray.
+- Issue #18357: add tests for dictview set difference.
+ Patch by Fraser Tweedale.
-- Issue #8329: Don't return the same lists from select.select when no fds are
- changed.
+- Issue #11185: Fix test_wait4 under AIX. Patch by Sébastien Sablé.
-- Raise a TypeError when trying to delete a T_STRING_INPLACE struct member.
+- Issue #18094: test_uuid no more reports skipped tests as passed.
-- Issue #1583863: An unicode subclass can now override the __unicode__ method.
+- Issue #11995: test_pydoc doesn't import all sys.path modules anymore.
-- Issue #7507: Quote "!" in pipes.quote(); it is special to some shells.
+Documentation
+-------------
-- Issue #7544: Preallocate thread memory before creating the thread to avoid
- a fatal error in low memory condition.
+- Issue #18718: datetime documentation contradictory on leap second support.
-- Issue #7820: The parser tokenizer restores all bytes in the right if
- the BOM check fails.
+- Issue #17701: Improving strftime documentation.
-- Issue #7072: isspace(0xa0) is true on Mac OS X
+- Issue #17844: Refactor a documentation of Python specific encodings.
+ Add links to encoders and decoders for binary-to-binary codecs.
-C-API
------
-- Issue #5753: A new C API function, :cfunc:`PySys_SetArgvEx`, allows
- embedders of the interpreter to set sys.argv without also modifying
- sys.path. This helps fix `CVE-2008-5983
- <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5983>`_.
+What's New in Python 2.7.5?
+===========================
-Library
--------
+*Release date: 2013-05-12*
-- Issue #8447: Make distutils.sysconfig follow symlinks in the path to
- the interpreter executable. This fixes a failure of test_httpservers
- on OS X.
+Core and Builtins
+-----------------
-- Issue #7092: Fix the DeprecationWarnings emitted by the standard library
- when using the -3 flag. Patch by Florent Xicluna.
+- Issue #15535: Fixed regression in the pickling of named tuples by
+ removing the __dict__ property introduced in 2.7.4.
-- Issue #7395: Fix tracebacks in pstats interactive browser.
+- Issue #17857: Prevent build failures with pre-3.5.0 versions of sqlite3,
+ such as was shipped with Centos 5 and Mac OS X 10.4.
-- Issue #1713: Fix os.path.ismount(), which returned true for symbolic links
- across devices.
+- Issue #17703: Fix a regression where an illegal use of Py_DECREF() after
+ interpreter finalization can cause a crash.
-- Issue #8826: Properly load old-style "expires" attribute in http.cookies.
+- Issue #16447: Fixed potential segmentation fault when setting __name__ on a
+ class.
-- Issue #1690103: Fix initial namespace for code run with trace.main().
+- Issue #17610: Don't rely on non-standard behavior of the C qsort() function.
-- Issue #5294: Fix the behavior of pdb's "continue" command when called
- in the top-level debugged frame.
+Library
+-------
-- Issue #5727: Restore the ability to use readline when calling into pdb
- in doctests.
+- Issue #17979: Fixed the re module in build with --disable-unicode.
-- Issue #6719: In pdb, do not stop somewhere in the encodings machinery
- if the source file to be debugged is in a non-builtin encoding.
+- Issue #17606: Fixed support of encoded byte strings in the XMLGenerator
+ .characters() and ignorableWhitespace() methods. Original patch by Sebastian
+ Ortiz Vasquez.
-- Issue #8048: Prevent doctests from failing when sys.displayhook has
- been reassigned.
+- Issue #16601: Restarting iteration over tarfile no more continues from where
+ it left off. Patch by Michael Birtwell.
-- Issue #8015: In pdb, do not crash when an empty line is entered as
- a breakpoint command.
+- Issue 16584: in filecomp._cmp, catch IOError as well as os.error.
+ Patch by Till Maas.
-- Issue #7909: Do not touch paths with the special prefixes ``\\.\``
- or ``\\?\`` in ntpath.normpath().
+- Issue #17926: Fix dbm.__contains__ on 64-bit big-endian machines.
-- Issue #5146: Handle UID THREAD command correctly in imaplib.
+- Issue #17918: When using SSLSocket.accept(), if the SSL handshake failed
+ on the new socket, the socket would linger indefinitely. Thanks to
+ Peter Saveliev for reporting.
-- Issue #5147: Fix the header generated for cookie files written by
- http.cookiejar.MozillaCookieJar.
+- Issue #17289: The readline module now plays nicer with external modules
+ or applications changing the rl_completer_word_break_characters global
+ variable. Initial patch by Bradley Froehle.
-- Issue #8198: In pydoc, output all help text to the correct stream
- when sys.stdout is reassigned.
+- Issue #12181: select module: Fix struct kevent definition on OpenBSD 64-bit
+ platforms. Patch by Federico Schwindt.
-- Issue #1019882: Fix IndexError when loading certain hotshot stats.
+- Issue #14173: Avoid crashing when reading a signal handler during
+ interpreter shutdown.
-- Issue #8471: In doctest, properly reset the output stream to an empty
- string when Unicode was previously output.
+- Issue #16316: mimetypes now recognizes the .xz and .txz (.tar.xz) extensions.
-- Issue #8397: Raise an error when attempting to mix iteration and regular
- reads on a BZ2File object, rather than returning incorrect results.
+- Issue #17192: Restore the patch for Issue #10309 which was ommitted
+ in 2.7.4 when updating the bundled version of libffi used by ctypes.
-- Issue #8620: when a Cmd is fed input that reaches EOF without a final
- newline, it no longer truncates the last character of the last command line.
+- Issue #17843: Removed test data file that was triggering false-positive virus
+ warnings with certain antivirus software.
-- Issue #7066: archive_util.make_archive now restores the cwd if an error is
- raised. Initial patch by Ezio Melotti.
+- Issue #17353: Plistlib emitted empty data tags with deeply nested datastructures
-- Issue #5006: Better handling of unicode byte-order marks (BOM) in the io
- library. This means, for example, that opening an UTF-16 text file in append
- mode doesn't add a BOM at the end of the file if the file isn't empty.
+- Issue #11714: Use 'with' statements to assure a Semaphore releases a
+ condition variable. Original patch by Thomas Rachel.
-- Issue #3704: cookielib was not properly handling URLs with a / in the
- parameters.
+- Issue #17795: Reverted backwards-incompatible change in SysLogHandler with
+ Unix domain sockets.
-- Issue #4629: getopt raises an error if an argument ends with = whereas getopt
- doesn't except a value (eg. --help= is rejected if getopt uses ['help='] long
- options).
+- Issue #17555: Fix ForkAwareThreadLock so that size of after fork
+ registry does not grow exponentially with generation of process.
-- Issue #7895: platform.mac_ver() no longer crashes after calling os.fork()
+- Issue #17710: Fix cPickle raising a SystemError on bogus input.
-- Issue #5395: array.fromfile() would raise a spurious EOFError when an
- I/O error occurred. Now an IOError is raised instead. Patch by chuck
- (Jan Hosang).
+- Issue #17341: Include the invalid name in the error messages from re about
+ invalid group names.
-- Issue #1555570: email no longer inserts extra blank lines when a \r\n
- combo crosses an 8192 byte boundary.
+- Issue #17016: Get rid of possible pointer wraparounds and integer overflows
+ in the re module. Patch by Nickolai Zeldovich.
-- Issue #9164: Ensure sysconfig handles dupblice archs while building on OSX
+- Issue #17536: Add to webbrowser's browser list: xdg-open, gvfs-open,
+ www-browser, x-www-browser, chromium browsers, iceweasel, iceape.
-- Issue #7646: The fnmatch pattern cache no longer grows without bound.
+- Issue #17656: Fix extraction of zip files with unicode member paths.
-- Issue #9136: Fix 'dictionary changed size during iteration'
- RuntimeError produced when profiling the decimal module. This was
- due to a dangerous iteration over 'locals()' in Context.__init__.
+- Issue #17666: Fix reading gzip files with an extra field.
-- Fix extreme speed issue in Decimal.pow when the base is an exact
- power of 10 and the exponent is tiny (for example,
- Decimal(10) ** Decimal('1e-999999999')).
+- Issue #13150, #17512: 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 #9130: Fix validation of relative imports in parser module.
+- Issue #13163: Rename operands in smtplib.SMTP._get_socket to correct names;
+ fixes otherwise misleading output in tracebacks and when when debug is on.
-- Issue #9128: Fix validation of class decorators in parser module.
+- Issue #17526: fix an IndexError raised while passing code without filename to
+ inspect.findsource(). Initial patch by Tyler Doyle.
-- Issue #7673: Fix security vulnerability (CVE-2010-2089) in the audioop
- module, ensure that the input string length is a multiple of the frame size
+Build
+-----
-- Issue #6589: cleanup asyncore.socket_map in case smtpd.SMTPServer constructor
- raises an exception.
+- Issue #17547: In configure, explicitly pass -Wformat for the benefit for GCC
+ 4.8.
-- Issue #9125: Add recognition of 'except ... as ...' syntax to parser module.
+- Issue #17682: Add the _io module to Modules/Setup.dist (commented out).
-- Issue #9085: email package version number bumped to its correct
- value of 4.0.2 (same as it was in 2.5).
+- Issue #17086: Search the include and library directories provided by the
+ compiler.
-- Issue #9075: In the ssl module, remove the setting of a ``debug`` flag
- on an OpenSSL structure.
+Tests
+-----
-- Issue #5610: feedparser no longer eats extra characters at the end of
- a body part if the body part ends with a \r\n.
+- Issue #17928: Fix test_structmembers on 64-bit big-endian machines.
-- Issue #8924: logging: Improved error handling for Unicode in exception text.
+- Issue #17883: Fix buildbot testing of Tkinter on Windows.
+ Patch by Zachary Ware.
-- Fix codecs.escape_encode to return the correct consumed size.
+- Issue #7855: Add tests for ctypes/winreg for issues found in IronPython.
+ Initial patch by Dino Viehland.
-- Issue #6470: Drop UNC prefix in FixTk.
+- Issue #17712: Fix test_gdb failures on Ubuntu 13.04.
-- Issue #8833: tarfile created hard link entries with a size field != 0 by
- mistake.
+- Issue #17065: Use process-unique key for winreg tests to avoid failures if
+ test is run multiple times in parallel (eg: on a buildbot host).
-- Issue #1368247: set_charset (and therefore MIMEText) now automatically
- encodes a unicode _payload to the output_charset.
+IDLE
+----
-- Issue #7150: Raise OverflowError if the result of adding or subtracting
- timedelta from date or datetime falls outside of the MINYEAR:MAXYEAR range.
+- Issue #17838: Allow sys.stdin to be reassigned.
-- Issue #6662: Fix parsing of malformatted charref (&#bad;), patch written by
- Fredrik Håård
+- Issue #14735: Update IDLE docs to omit "Control-z on Windows".
-- Issue #1628205: Socket file objects returned by socket.socket.makefile() now
- properly handles EINTR within the read, readline, write & flush methods.
- The socket.sendall() method now properly handles interrupted system calls.
+- Issue #17585: Fixed IDLE regression. Now closes when using exit() or quit().
-- Issue #3924: Ignore cookies with invalid "version" field in cookielib.
+- Issue #17657: Show full Tk version in IDLE's about dialog.
+ Patch by Todd Rovito.
-- Issue #6268: Fix seek() method of codecs.open(), don't read or write the BOM
- twice after seek(0). Fix also reset() method of codecs, UTF-16, UTF-32 and
- StreamWriter classes.
+- Issue #17613: Prevent traceback when removing syntax colorizer in IDLE.
-- Issue #5640: Fix Shift-JIS incremental encoder for error handlers different
- than strict
+- Issue #1207589: Backwards-compatibility patch for right-click menu in IDLE.
-- Issue #8782: Add a trailing newline in linecache.updatecache to the last line
- of files without one.
+- Issue #16887: IDLE now accepts Cancel in tabify/untabify dialog box.
-- Issue #8729: Return NotImplemented from collections.Mapping.__eq__ when
- comparing to a non-mapping.
+- Issue #14254: IDLE now handles readline correctly across shell restarts.
-- Issue #5918: Fix a crash in the parser module.
+- Issue #17614: IDLE no longer raises exception when quickly closing a file.
-- Issue #8688: Distutils now recalculates MANIFEST everytime.
+- Issue #6698: IDLE now opens just an editor window when configured to do so.
-- Issue #7640: In the new `io` module, fix relative seek() for buffered
- readable streams when the internal buffer isn't empty. Patch by Pascal
- Chambon.
+- Issue #8900: Using keyboard shortcuts in IDLE to open a file no longer
+ raises an exception.
-- Issue #5099: subprocess.Popen.__del__ no longer references global objects,
- leading to issues during interpreter shutdown.
+- Issue #6649: Fixed missing exit status in IDLE. Patch by Guilherme Polo.
-- Issue #8681: Make the zlib module's error messages more informative when
- the zlib itself doesn't give any detailed explanation.
+Documentation
+-------------
-- Issue #8674: Fixed a number of incorrect or undefined-behaviour-inducing
- overflow checks in the audioop module.
+- Issue #15940: Specify effect of locale on time functions.
-- Issue #8571: Fix an internal error when compressing or decompressing a
- chunk larger than 1GB with the zlib module's compressor and decompressor
- objects.
+- Issue #6696: add documentation for the Profile objects, and improve
+ profile/cProfile docs. Patch by Tom Pinckney.
-- Issue #8573: asyncore _strerror() function might throw ValueError.
-- Issue #8483: asyncore.dispatcher's __getattr__ method produced confusing
- error messages when accessing undefined class attributes because of the cheap
- inheritance with the underlying socket object.
+What's New in Python 2.7.4?
+===========================
-- Issue #4265: shutil.copyfile() was leaking file descriptors when disk fills.
- Patch by Tres Seaver.
+*Release date: 2013-04-06*
-- Issue #8621: uuid.uuid4() returned the same sequence of values in the
- parent and any children created using ``os.fork`` on MacOS X 10.6.
+Build
+-----
-- Issue #8313: traceback.format_exception_only() encodes unicode message to
- ASCII with backslashreplace error handler if str(value) failed
+- Issue #17550: Fix the --enable-profiling configure switch.
-- Issue #8567: Fix precedence of signals in Decimal module: when a
- Decimal operation raises multiple signals and more than one of those
- signals is trapped, the specification determines the order in which
- the signals should be handled. In many cases this order wasn't
- being followed, leading to the wrong Python exception being raised.
+Core and Builtins
+-----------------
-- Issue #7865: The close() method of :mod:`io` objects should not swallow
- exceptions raised by the implicit flush(). Also ensure that calling
- close() several times is supported. Initial patch by Pascal Chambon.
+- Issue #15801 (again): With string % formatting, relax the type check for a
+ mapping such that any type with a __getitem__ can be used on the right hand
+ side.
-- Issue #8581: logging: removed errors raised when closing handlers twice.
+IDLE
+----
-- Issue #4687: Fix accuracy of garbage collection runtimes displayed with
- gc.DEBUG_STATS.
+- Issue #17625: In IDLE, close the replace dialog after it is used.
-- Issue #8354: The siginterrupt setting is now preserved for all signals,
- not just SIGCHLD.
+Tests
+-----
-- Issue #8577: distutils.sysconfig.get_python_inc() now makes a difference
- between the build dir and the source dir when looking for "python.h" or
- "Include".
+- Issue #17835: Fix test_io when the default OS pipe buffer size is larger
+ than one million bytes.
-- Issue #8464: tarfile no longer creates files with execute permissions set
- when mode="w|" is used.
+- Issue #17531: Fix tests that thought group and user ids were always the int
+ type. Also, always allow -1 as a valid group and user id.
-- Issue #7834: Fix connect() of Bluetooth L2CAP sockets with recent versions
- of the Linux kernel. Patch by Yaniv Aknin.
+- Issue #17533: Fix test_xpickle with older versions of Python 2.5.
-- Issue #6312: Fixed http HEAD request when the transfer encoding is chunked.
- It should correctly return an empty response now.
+Documentation
+-------------
-- Issue #8086: In :func:`ssl.DER_cert_to_PEM_cert()`, fix missing newline
- before the certificate footer. Patch by Kyle VanderBeek.
+- Issue 17538: Document XML vulnerabilties
-- Issue #8549: Fix compiling the _ssl extension under AIX. Patch by
- Sridhar Ratnakumar.
-- Issue #2302: Fix a race condition in SocketServer.BaseServer.shutdown,
- where the method could block indefinitely if called just before the
- event loop started running. This also fixes the occasional freezes
- witnessed in test_httpservers.
+What's New in Python 2.7.4 release candidate 1
+==============================================
-- Issue #5103: SSL handshake would ignore the socket timeout and block
- indefinitely if the other end didn't respond.
+*Release date: 2013-03-23*
-- The do_handshake() method of SSL objects now adjusts the blocking mode of
- the SSL structure if necessary (as other methods already do).
+Core and Builtins
+-----------------
-- Issue #5238: Calling makefile() on an SSL object would prevent the
- underlying socket from being closed until all objects get truely destroyed.
+- Issue #10211: Buffer objects expose the new buffer interface internally
-- Issue #7943: Fix circular reference created when instantiating an SSL
- socket. Initial patch by Péter Szabó.
+- Issue #16445: Fixed potential segmentation fault when deleting an exception
+ message.
-- Issue #8108: Fix the unwrap() method of SSL objects when the socket has
- a non-infinite timeout. Also make that method friendlier with applications
- wanting to continue using the socket in clear-text mode, by disabling
- OpenSSL's internal readahead. Thanks to Darryl Miles for guidance.
+- Issue #17275: Corrected class name in init error messages of the C version of
+ BufferedWriter and BufferedRandom.
-- Issue #8484: Load all ciphers and digest algorithms when initializing
- the _ssl extension, such that verification of some SSL certificates
- doesn't fail because of an "unknown algorithm".
+- Issue #7963: Fixed misleading error message that issued when object is
+ called without arguments.
-- Issue #4814: timeout parameter is now applied also for connections resulting
- from PORT/EPRT commands.
+- Issue #5308: Raise ValueError when marshalling too large object (a sequence
+ with size >= 2**31), instead of producing illegal marshal data.
-- Issue #3817: ftplib.FTP.abort() method now considers 225 a valid response
- code as stated in RFC-959 at chapter 5.4.
+- Issue #17043: The unicode-internal decoder no longer read past the end of
+ input buffer.
-- Issue #5277: Fix quote counting when parsing RFC 2231 encoded parameters.
+- Issue #16979: Fix error handling bugs in the unicode-escape-decode decoder.
-- Issue #8179: Fix macpath.realpath() on a non-existing path.
+- Issue #10156: In the interpreter's initialization phase, unicode globals
+ are now initialized dynamically as needed.
-- Issue #8310: Allow dis to examine new style classes.
+- Issue #16975: Fix error handling bug in the escape-decode decoder.
-- Issue #7667: Fix doctest failures with non-ASCII paths.
+- Issue #14850: Now a charmap decoder treats U+FFFE as "undefined mapping"
+ in any mapping, not only in a Unicode string.
-- Issue #7624: Fix isinstance(foo(), collections.Callable) for old-style
- classes.
+- Issue #11461: Fix the incremental UTF-16 decoder. Original patch by
+ Amaury Forgeot d'Arc.
-- Issue #7512: shutil.copystat() could raise an OSError when the filesystem
- didn't support chflags() (for example ZFS under FreeBSD). The error is
- now silenced.
+- Issue #16367: Fix FileIO.readall() on Windows for files larger than 2 GB.
-- Issue #3890, #8222: Fix recv() and recv_into() on non-blocking SSL sockets.
- Also, enable the SSL_MODE_AUTO_RETRY flag on SSL sockets, so that blocking
- reads and writes are always retried by OpenSSL itself.
+- Issue #15516: Fix a bug in PyString_FromFormat where it failed to properly
+ ignore errors from a __int__() method.
-- Issue #6544: fix a reference leak in the kqueue implementation's error
- handling.
+- Issue #16839: Fix a segfault when calling unicode() on a classic class early
+ in interpreter initialization.
-- Issue #7774: Set sys.executable to an empty string if argv[0] has been
- set to an non existent program name and Python is unable to retrieve the real
- program name
+- Issue #16761: Calling ``int()`` and ``long()`` with *base* argument only
+ now raises TypeError.
-- Issue #6906: Tk should not set Unicode environment variables on Windows.
+- Issue #16759: Support the full DWORD (unsigned long) range in Reg2Py
+ when retrieving a REG_DWORD value. This corrects functions like
+ winreg.QueryValueEx that may have been returning truncated values.
-- Issue #1054943: Fix unicodedata.normalize('NFC', text) for the Public Review
- Issue #29
+- Issue #14420: Support the full DWORD (unsigned long) range in Py2Reg
+ when passed a REG_DWORD value. Fixes ValueError in winreg.SetValueEx when
+ given a long.
-- Issue #7494: fix a crash in _lsprof (cProfile) after clearing the profiler,
- reset also the pointer to the current pointer context.
+- Issue #13863: Work around buggy 'fstat' implementation on Windows / NTFS that
+ lead to incorrect timestamps (off by one hour) being stored in .pyc files on
+ some systems.
-- Issue #4961: Inconsistent/wrong result of askyesno function in tkMessageBox
- with Tcl/Tk-8.5.
+- Issue #16602: When a weakref's target was part of a long deallocation
+ chain, the object could remain reachable through its weakref even though
+ its refcount had dropped to zero.
-- Issue #7356: ctypes.util: Make parsing of ldconfig output independent of
- the locale.
+- Issue #9011: Fix hacky AST code that modified the CST when compiling
+ a negated numeric literal.
-Extension Modules
------------------
+- Issue #16306: Fix multiple error messages when unknown command line
+ parameters where passed to the interpreter. Patch by Hieu Nguyen.
-- Fix memory leak in ssl._ssl._test_decode_cert.
+- Issue #15379: Fix passing of non-BMP characters as integers for the charmap
+ decoder (already working as unicode strings). Patch by Serhiy Storchaka.
-- Issue #9422: Fix memory leak when re-initializing a struct.Struct object.
+- Issue #16453: Fix equality testing of dead weakref objects.
-- Issue #7900: The getgroups(2) system call on MacOSX behaves rather oddly
- compared to other unix systems. In particular, os.getgroups() does
- not reflect any changes made using os.setgroups() but basicly always
- returns the same information as the id command.
+- Issue #9535: Fix pending signals that have been received but not yet
+ handled by Python to not persist after os.fork() in the child process.
- os.getgroups() can now return more than 16 groups on MacOSX.
+- Issue #15001: fix segfault on "del sys.modules['__main__']". Patch by Victor
+ Stinner.
-- Issue #9277: Fix bug in struct.pack for bools in standard mode
- (e.g., struct.pack('>?')): if conversion to bool raised an exception
- then that exception wasn't properly propagated on machines where
- char is unsigned.
+- Issue #5057: the peepholer no longer optimizes subscription on unicode
+ literals (e.g. u'foo'[0]) in order to produce compatible pyc files between
+ narrow and wide builds.
-- Issue #7384: If the system readline library is linked against
- ncurses, do not link the readline module against ncursesw. The
- additional restriction of linking the readline and curses modules
- against the same curses library is currently not enabled.
+- Issue #8401: assigning an int to a bytearray slice (e.g. b[3:4] = 5) now
+ raises an error.
-- Issue #2810: Fix cases where the Windows registry API returns
- ERROR_MORE_DATA, requiring a re-try in order to get the complete result.
+- Issue #14700: Fix buggy overflow checks for large width and precision
+ in string formatting operations.
-Build
------
+- Issue #16345: Fix an infinite loop when ``fromkeys`` on a dict subclass
+ received a nonempty dict from the constructor.
-- Issue #8854: Fix finding Visual Studio 2008 on Windows x64.
+- Issue #6074: Ensure cached bytecode files can always be updated by the
+ user that created them, even when the source file is read-only.
-- Issue #3928: os.mknod() now available in Solaris, also.
+- Issue #14783: Improve int() and long() docstrings and switch docstrings for
+ unicode(), slice(), range(), and xrange() to use multi-line signatures.
-- Issue #8175: --with-universal-archs=all works correctly on OSX 10.5
+- Issue #16030: Fix overflow bug in computing the `repr` of an xrange object
+ with large start, step or length.
-- Issue #6716: Quote -x arguments of compileall in MSI installer.
+- Issue #16029: Fix overflow bug occurring when pickling xranges with large
+ start, step or length.
-- Issue #1628484: The Makefile doesn't ignore the CFLAGS environment
- variable anymore. It also forwards the LDFLAGS settings to the linker
- when building a shared library.
+- Issue #16037: Limit httplib's _read_status() function to work around broken
+ HTTP servers and reduce memory usage. It's actually a backport of a Python
+ 3.2 fix. Thanks to Adrien Kunysz.
-Tests
------
+- Issue #16588: Silence unused-but-set warnings in Python/thread_pthread
-- Issue #7849: Now the utility ``check_warnings`` verifies if the warnings are
- effectively raised. A new private utility ``_check_py3k_warnings`` has been
- backported to help silencing py3k warnings.
+- Issue #13992: The trashcan mechanism is now thread-safe. This eliminates
+ sporadic crashes in multi-thread programs when several long deallocator
+ chains ran concurrently and involved subclasses of built-in container
+ types.
-- Issue #8672: Add a zlib test ensuring that an incomplete stream can be
- handled by a decompressor object without errors (it returns incomplete
- uncompressed data).
+- Issue #15801: Make sure mappings passed to '%' formatting are actually
+ subscriptable.
-- Issue #8629: Disable some test_ssl tests, since they give different
- results with OpenSSL 1.0.0 and higher.
+- Issue #15604: Update uses of PyObject_IsTrue() to check for and handle
+ errors correctly. Patch by Serhiy Storchaka.
+
+- Issue #14579: Fix error handling bug in the utf-16 decoder. Patch by
+ Serhiy Storchaka.
+
+- Issue #15368: An issue that caused bytecode generation to be
+ non-deterministic when using randomized hashing (-R) has been fixed.
+
+- Issue #15897: zipimport.c doesn't check return value of fseek().
+ Patch by Felipe Cruz.
+
+- Issue #16369: Global PyTypeObjects not initialized with PyType_Ready(...).
+
+- Issue #15033: Fix the exit status bug when modules invoked using -m switch,
+ return the proper failure return value (1). Patch contributed by Jeff Knupp.
+
+- Issue #12268: File readline, readlines and read() methods no longer lose
+ data when an underlying read system call is interrupted. IOError is no
+ longer raised due to a read system call returning EINTR from within these
+ methods.
+
+- Issue #13512: Create ~/.pypirc securely (CVE-2011-4944). Initial patch by
+ Philip Jenvey, tested by Mageia and Debian.
+
+- Issue #7719: Make distutils ignore ``.nfs*`` files instead of choking later
+ on. Initial patch by SilentGhost and Jeff Ramnani.
+
+- Issue #10053: Don't close FDs when FileIO.__init__ fails. Loosely based on
+ the work by Hirokazu Yamamoto.
+
+- Issue #14775: Fix a potential quadratic dict build-up due to the garbage
+ collector repeatedly trying to untrack dicts.
+
+- Issue #14494: Fix __future__.py and its documentation to note that
+ absolute imports are the default behavior in 3.0 instead of 2.7.
+ Patch by Sven Marnach.
+
+- Issue #14761: Fix potential leak on an error case in the import machinery.
+
+- Issue #14699: Fix calling the classmethod descriptor directly.
+
+- Issue #11603 (again): Setting __repr__ to __str__ now raises a RuntimeError
+ when repr() or str() is called on such an object.
+
+- Issue #14658: Fix binding a special method to a builtin implementation of a
+ special method with a different name.
+
+- Issue #14612: Fix jumping around with blocks by setting f_lineno.
+
+- 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.
+
+- Issue #14505: Fix file descriptor leak when deallocating file objects
+ created with PyFile_FromString().
+
+- 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. Also fix segfaults in the __getattribute__ and __setattr__
+ methods of old-style classes.
+
+- Issue #14161: fix the __repr__ of file objects to escape the file name.
+
+- Issue #1469629: Allow cycles through an object's __dict__ slot to be
+ collected. (For example if ``x.__dict__ is x``).
+
+- Issue #13521: dict.setdefault() now does only one lookup for the given key,
+ making it "atomic" for many purposes. Patch by Filip Gruszczyński.
+
+- Issue #1602133: on Mac OS X a shared library build (``--enable-shared``)
+ now fills the ``os.environ`` variable correctly.
+
+- Issue #10538: When using the "s*" code with PyArg_ParseTuple() to fill a
+ Py_buffer structure with data from an object supporting only the old
+ PyBuffer interface, a reference to the source objects is now properly added
+ to the Py_buffer.obj member.
+
+Library
+-------
+
+- Issue #12718: Fix interaction with winpdb overriding __import__ by setting
+ importer attribute on BaseConfigurator instance.
+
+- Issue #17521: Corrected non-enabling of logger following two calls to
+ fileConfig().
+
+- Issue #17508: Corrected MemoryHandler configuration in dictConfig() where
+ the target handler wasn't configured first.
+
+- Issue #10212: cStringIO and struct.unpack support new buffer objects.
+
+- Issue #12098: multiprocessing on Windows now starts child processes
+ using the same sys.flags as the current process. Initial patch by
+ Sergey Mezentsev.
+
+- Issue #8862: Fixed curses cleanup when getkey is interrputed by a signal.
+
+- Issue #9090: When a socket with a timeout fails with EWOULDBLOCK or EAGAIN,
+ retry the select() loop instead of bailing out. This is because select()
+ can incorrectly report a socket as ready for reading (for example, if it
+ received some data with an invalid checksum).
+
+- Issue #1285086: Get rid of the refcounting hack and speed up urllib.unquote().
+
+- Issue #17368: Fix an off-by-one error in the Python JSON decoder that caused
+ a failure while decoding empty object literals when object_pairs_hook was
+ specified.
+
+- Issue #17278: Fix a crash in heapq.heappush() and heapq.heappop() when
+ the list is being resized concurrently.
+
+- Issue #17018: Make Process.join() retry if os.waitpid() fails with EINTR.
+
+- Issue #14720: sqlite3: Convert datetime microseconds correctly.
+ Patch by Lowe Thiderman.
+
+- Issue #17225: JSON decoder now counts columns in the first line starting
+ with 1, as in other lines.
+
+- Issue #7842: backported fix for py_compile.compile() syntax error handling.
+
+- Issue #13153: Tkinter functions now raise TclError instead of ValueError when
+ a unicode argument contains non-BMP character.
+
+- Issue #9669: Protect re against infinite loops on zero-width matching in
+ non-greedy repeat. Patch by Matthew Barnett.
+
+- Issue #13169: The maximal repetition number in a regular expression has been
+ increased from 65534 to 2147483647 (on 32-bit platform) or 4294967294 (on
+ 64-bit).
+
+- Issue #16743: Fix mmap overflow check on 32 bit Windows.
+
+- Issue #11311: StringIO.readline(0) now returns an empty string as all other
+ file-like objects.
+
+- Issue #16800: tempfile.gettempdir() no longer left temporary files when
+ the disk is full. Original patch by Amir Szekely.
+
+- Issue #13555: cPickle now supports files larger than 2 GiB.
+
+- Issue #17052: unittest discovery should use self.testLoader.
+
+- Issue #4591: Uid and gid values larger than 2**31 are supported now.
+
+- Issue #17141: random.vonmisesvariate() no more hangs for large kappas.
+
+- Issue #17149: Fix random.vonmisesvariate to always return results in
+ the range [0, 2*math.pi].
+
+- Issue #1470548: XMLGenerator now works with UTF-16 and UTF-32 encodings.
+
+- Issue #6975: os.path.realpath() now correctly resolves multiple nested
+ symlinks on POSIX platforms.
+
+- Issue #7358: cStringIO.StringIO now supports writing to and reading from
+ a stream larger than 2 GiB on 64-bit systems.
+
+- Issue #10355: In SpooledTemporaryFile class mode and name properties and
+ xreadlines method now work for unrolled files. encoding and newlines
+ properties now removed as they have no sense and always produced
+ AttributeError.
+
+- Issue #16686: Fixed a lot of bugs in audioop module. Fixed crashes in
+ avgpp(), maxpp() and ratecv(). Fixed an integer overflow in add(), bias(),
+ and ratecv(). reverse(), lin2lin() and ratecv() no more lose precision for
+ 32-bit samples. max() and rms() no more returns a negative result and
+ various other functions now work correctly with 32-bit sample -0x80000000.
+
+- Issue #17073: Fix some integer overflows in sqlite3 module.
+
+- Issue #6083: Fix multiple segmentation faults occured when PyArg_ParseTuple
+ parses nested mutating sequence.
+
+- Issue #5289: Fix ctypes.util.find_library on Solaris.
+
+- Issue #17106: Fix a segmentation fault in io.TextIOWrapper when an underlying
+ stream or a decoder produces data of an unexpected type (i.e. when
+ io.TextIOWrapper initialized with text stream or use bytes-to-bytes codec).
+
+- Issue #13994: Add compatibility alias in distutils.ccompiler for
+ distutils.sysconfig.customize_compiler.
+
+- Issue #15633: httplib.HTTPResponse is now mark closed when the server
+ sends less than the advertised Content-Length.
+
+- Issue #15881: Fixed atexit hook in multiprocessing.
+
+- Issue #14340: Upgrade the embedded expat library to version 2.1.0.
+
+- Issue #11159: SAX parser now supports unicode file names.
+
+- Issue #6972: The zipfile module no longer overwrites files outside of
+ its destination path when extracting malicious zip files.
+
+- Issue #17049: Localized calendar methods now return unicode if a locale
+ includes an encoding and the result string contains month or weekday (was
+ regression from Python 2.6).
+
+- Issue #4844: ZipFile now raises BadZipfile when opens a ZIP file with an
+ incomplete "End of Central Directory" record. Original patch by Guilherme
+ Polo and Alan McIntyre.
+
+- Issue #15505: `unittest.installHandler` no longer assumes SIGINT handler is
+ set to a callable object.
+
+- Issue #17051: Fix a memory leak in os.path.isdir() on Windows. Patch by
+ Robert Xiao.
+
+- Issue #13454: Fix a crash when deleting an iterator created by itertools.tee()
+ if all other iterators were very advanced before.
+
+- Issue #16992: On Windows in signal.set_wakeup_fd, validate the file
+ descriptor argument.
+
+- Issue #15861: tkinter now correctly works with lists and tuples containing
+ strings with whitespaces, backslashes or unbalanced braces.
+
+- Issue #10527: Use poll() instead of select() for multiprocessing pipes.
+
+- Issue #9720: zipfile now writes correct local headers for files larger than
+ 4 GiB.
+
+- Issue #13899: \A, \Z, and \B now correctly match the A, Z, and B literals
+ when used inside character classes (e.g. '[\A]'). Patch by Matthew Barnett.
+
+- Issue #16398: Optimize deque.rotate() so that it only moves pointers
+ and doesn't touch the underlying data with increfs and decrefs.
+
+- Issue #15109: Fix regression in sqlite3's iterdump method where it would
+ die with an encoding error if the database contained string values
+ containing non-ASCII. (Regression was introduced by fix for 9750).
+
+- Issue #15545: Fix regression in sqlite3's iterdump method where it was
+ failing if the connection used a row factory (such as sqlite3.Row) that
+ produced unsortable objects. (Regression was introduced by fix for 9750).
+
+- Issue #16828: Fix error incorrectly raised by bz2.compress(''). Patch by
+ Martin Packman.
+
+- Issue #9586: Redefine SEM_FAILED on MacOSX to keep compiler happy.
+
+- Issue #10527: make multiprocessing use poll() instead of select() if available.
+
+- Issue #16485: Now file descriptors are closed if file header patching failed
+ on closing an aifc file.
+
+- 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 #16713: Fix the parsing of tel url with params using urlparse module.
+
+- Issue #16443: Add docstrings to regular expression match objects.
+ Patch by Anton Kasyanov.
+
+- Issue #8853: Allow port to be of type long for socket.getaddrinfo().
+
+- Issue #16597: In buffered and text IO, call close() on the underlying stream
+ if invoking flush() fails.
+
+- Issue #15701: Fix HTTPError info method call to return the headers information.
+
+- Issue #16646: ftplib.FTP.makeport() might lose socket error details.
+ (patch by Serhiy Storchaka)
+
+- Issue #16626: Fix infinite recursion in glob.glob() on Windows when the
+ pattern contains a wildcard in the drive or UNC path. Patch by Serhiy
+ Storchaka.
+
+- Issue #16298: In HTTPResponse.read(), close the socket when there is no
+ Content-Length and the incoming stream is finished. Patch by Eran
+ Rundstein.
+
+- Issue #16248: Disable code execution from the user's home directory by
+ tkinter when the -E flag is passed to Python. Patch by Zachary Ware.
+
+- Issue #16628: Fix a memory leak in ctypes.resize().
+
+- Issue #13614: Fix setup.py register failure with invalid rst in description.
+ Patch by Julien Courteau and Pierre Paul Lefebvre.
+
+- Issue #10182: The re module doesn't truncate indices to 32 bits anymore.
+ Patch by Serhiy Storchaka.
+
+- Issue #16573: In 2to3, treat enumerate() like a consuming call, so superfluous
+ list() calls aren't added to filter(), map(), and zip() which are directly
+ passed enumerate().
+
+- Issue #1160: Fix compiling large regular expressions on UCS2 builds.
+ Patch by Serhiy Storchaka.
+
+- Issue #14313: zipfile now raises NotImplementedError when the compression
+ type is unknown.
+
+- Issue #16408: Fix file descriptors not being closed in error conditions
+ in the zipfile module. Patch by Serhiy Storchaka.
+
+- Issue #16327: The subprocess module no longer leaks file descriptors
+ used for stdin/stdout/stderr pipes to the child when fork() fails.
+
+- Issue #14396: Handle the odd rare case of waitpid returning 0 when not
+ expected in subprocess.Popen.wait().
+
+- Issue #16411: Fix a bug where zlib.decompressobj().flush() might try to access
+ previously-freed memory. Patch by Serhiy Storchaka.
+
+- Issue #16350: zlib.decompressobj().decompress() now accumulates data from
+ successive calls after EOF in unused_data, instead of only saving the argument
+ to the last call. decompressobj().flush() now correctly sets unused_data and
+ unconsumed_tail. A bug in the handling of MemoryError when setting the
+ unconsumed_tail attribute has also been fixed. Patch by Serhiy Storchaka.
+
+- Issue #12759: sre_parse now raises a proper error when the name of the group
+ is missing. Initial patch by Serhiy Storchaka.
+
+- Issue #16152: fix tokenize to ignore whitespace at the end of the code when
+ no newline is found. Patch by Ned Batchelder.
+
+- Issue #16230: Fix a crash in select.select() when one the lists changes
+ size while iterated on. Patch by Serhiy Storchaka.
+
+- Issue #16228: Fix a crash in the json module where a list changes size
+ while it is being encoded. Patch by Serhiy Storchaka.
+
+- Issue #14897: Enhance error messages of struct.pack and
+ struct.pack_into. Patch by Matti Mäki.
+
+- Issue #12890: cgitb no longer prints spurious <p> tags in text
+ mode when the logdir option is specified.
+
+- Issue #14398: Fix size truncation and overflow bugs in the bz2 module.
+
+- Issue #5148: Ignore 'U' in mode given to gzip.open() and gzip.GzipFile().
+
+- Issue #16220: wsgiref now always calls close() on an iterable response.
+ Patch by Brent Tubbs.
+
+- Issue #16461: Wave library should be able to deal with 4GB wav files,
+ and sample rate of 44100 Hz.
+
+- Issue #16176: Properly identify Windows 8 via platform.platform()
+
+- Issue #15756: subprocess.poll() now properly handles errno.ECHILD to
+ return a returncode of 0 when the child has already exited or cannot
+ be waited on.
+
+- Issue #12376: Pass on parameters in TextTestResult.__init__ super call
+
+- Issue #15222: Insert blank line after each message in mbox mailboxes
+
+- Issue #16013: Fix CSV Reader parsing issue with ending quote characters.
+ Patch by Serhiy Storchaka.
+
+- Issue #15421: fix an OverflowError in Calendar.itermonthdates() after
+ datetime.MAXYEAR. Patch by Cédric Krier.
+
+- Issue #15970: xml.etree.ElementTree now serializes correctly the empty HTML
+ elements 'meta' and 'param'.
+
+- Issue #15676: Now "mmap" check for empty files before doing the
+ offset check. Patch by Steven Willis.
+
+- Issue #15340: Fix importing the random module when /dev/urandom cannot
+ be opened. This was a regression caused by the hash randomization patch.
+
+- Issue #15841: The readable(), writable() and seekable() methods of
+ io.BytesIO and io.StringIO objects now raise ValueError when the object has
+ been closed. Patch by Alessandro Moura.
+
+- Issue #16112: platform.architecture does not correctly escape argument to
+ /usr/bin/file. Patch by David Benjamin.
+
+- Issue #12776,#11839: call argparse type function (specified by add_argument)
+ only once. Before, the type function was called twice in the case where the
+ default was specified and the argument was given as well. This was
+ especially problematic for the FileType type, as a default file would always
+ be opened, even if a file argument was specified on the command line.
+
+- Issue #15906: Fix a regression in argparse caused by the preceding change,
+ when action='append', type='str' and default=[].
+
+- Issue #13370: Ensure that ctypes works on Mac OS X when Python is
+ compiled using the clang compiler
+
+- Issue #15544: Fix Decimal.__float__ to work with payload-carrying NaNs.
+
+- Issue #15199: Fix JavaScript's default MIME type to application/javascript.
+ Patch by Bohuslav Kabrda.
+
+- Issue #15477: In cmath and math modules, add workaround for platforms whose
+ system-supplied log1p function doesn't respect signs of zeros.
+
+- Issue #11062: Fix adding a message from file to Babyl mailbox.
+
+- Issue #15646: Prevent equivalent of a fork bomb when using
+ multiprocessing on Windows without the "if __name__ == '__main__'"
+ idiom.
+
+- Issue #15567: Fix NameError when running threading._test
+
+- Issue #15424: Add a __sizeof__ implementation for array objects.
+ Patch by Ludwig Hähne.
+
+- Issue #15538: Fix compilation of the getnameinfo() / getaddrinfo()
+ emulation code. Patch by Philipp Hagemeister.
+
+- Issue #12288: Consider '0' and '0.0' as valid initialvalue
+ for tkinter SimpleDialog.
+
+- Issue #15489: Add a __sizeof__ implementation for BytesIO objects.
+ Patch by Serhiy Storchaka.
+
+- Issue #15469: Add a __sizeof__ implementation for deque objects.
+ Patch by Serhiy Storchaka.
+
+- Issue #15487: Add a __sizeof__ implementation for buffered I/O objects.
+ Patch by Serhiy Storchaka.
+
+- Issue #15512: Add a __sizeof__ implementation for parser.
+ Patch by Serhiy Storchaka.
+
+- Issue #15402: An issue in the struct module that caused sys.getsizeof to
+ return incorrect results for struct.Struct instances has been fixed.
+ Initial patch by Serhiy Storchaka.
+
+- Issue #15232: when mangle_from is True, email.Generator now correctly mangles
+ lines that start with 'From ' that occur in a MIME preamble or epilog.
+
+- Issue #13922: argparse no longer incorrectly strips '--'s that appear
+ after the first one.
+
+- Issue #12353: argparse now correctly handles null argument values.
+
+- Issue #6493: An issue in ctypes on Windows that caused structure bitfields
+ of type ctypes.c_uint32 and width 32 to incorrectly be set has been fixed.
+
+- Issue #14635: telnetlib will use poll() rather than select() when possible
+ to avoid failing due to the select() file descriptor limit.
+
+- Issue #15247: FileIO now raises an error when given a file descriptor
+ pointing to a directory.
+
+- Issue #14591: Fix bug in Random.jumpahead that could produce an invalid
+ Mersenne Twister state on 64-bit machines.
+
+- Issue #5346: Preserve permissions of mbox, MMDF and Babyl mailbox
+ files on flush().
+
+- Issue #15219: Fix a reference leak when hashlib.new() is called with
+ invalid parameters.
+
+- Issue #9559: If messages were only added, a new file is no longer
+ created and renamed over the old file when flush() is called on an
+ mbox, MMDF or Babyl mailbox.
+
+- Issue #14653: email.utils.mktime_tz() no longer relies on system
+ mktime() when timezone offest is supplied.
+
+- Issue #6056: Make multiprocessing use setblocking(True) on the
+ sockets it uses. Original patch by J Derek Wilson.
+
+- Issue #15101: Make pool finalizer avoid joining current thread.
+
+- Issue #15054: A bug in tokenize.tokenize that caused string literals
+ with 'b' and 'br' prefixes to be incorrectly tokenized has been fixed.
+ Patch by Serhiy Storchaka.
+
+- Issue #15036: Mailbox no longer throws an error if a flush is done
+ between operations when removing or changing multiple items in mbox,
+ MMDF, or Babyl mailboxes.
+
+- Issue #10133: Make multiprocessing deallocate buffer if socket read
+ fails. Patch by Hallvard B Furuseth.
+
+- Issue #13854: Make multiprocessing properly handle non-integer
+ non-string argument to SystemExit.
+
+- Issue #12157: Make pool.map() empty iterables correctly. Initial
+ patch by mouad.
+
+- Issue #14036: Add an additional check to validate that port in urlparse does
+ not go in illegal range and returns None.
+
+- Issue #14888: Fix misbehaviour of the _md5 module when called on data
+ larger than 2**32 bytes.
+
+- Issue #15908: Fix misbehaviour of the sha1 module when called on data
+ larger than 2**32 bytes.
+
+- Issue #15910: Fix misbehaviour of _md5 and sha1 modules when "updating"
+ on data larger than 2**32 bytes.
+
+- Issue #14875: Use float('inf') instead of float('1e66666') in the json module.
+
+- Issue #14572: Prevent build failures with pre-3.5.0 versions of
+ sqlite3, such as was shipped with Centos 5 and Mac OS X 10.4.
+
+- Issue #14426: Correct the Date format in Expires attribute of Set-Cookie
+ Header in Cookie.py.
+
+- Issue #14721: Send proper header, Content-length: 0 when the body is an empty
+ string ''. Initial Patch contributed by Arve Knudsen.
+
+- Issue #14072: Fix parsing of 'tel' URIs in urlparse by making the check for
+ ports stricter.
+
+- Issue #9374: Generic parsing of query and fragment portions of url for any
+ scheme. Supported both by RFC3986 and RFC2396.
+
+- Issue #14798: Fix the functions in pyclbr to raise an ImportError
+ when the first part of a dotted name is not a package. Patch by
+ Xavier de Gaye.
+
+- Issue #14832: fixed the order of the argument references in the error
+ message produced by unittest's assertItemsEqual.
+
+- Issue #14829: Fix bisect issues under 64-bit Windows.
+
+- Issue #14777: tkinter may return undecoded UTF-8 bytes as a string when
+ accessing the Tk clipboard. Modify clipboad_get() to first request type
+ UTF8_STRING when no specific type is requested in an X11 windowing
+ environment, falling back to the current default type STRING if that fails.
+ Original patch by Thomas Kluyver.
+
+- Issue #12541: Be lenient with quotes around Realm field with HTTP Basic
+ Authentation in urllib2.
+
+- Issue #14662: Prevent shutil failures on OS X when destination does not
+ support chflag operations. Patch by Hynek Schlawack.
+
+- Issue #14157: Fix time.strptime failing without a year on February 29th.
+ Patch by Hynek Schlawack.
+
+- Issue #14768: os.path.expanduser('~/a') doesn't works correctly when HOME is '/'.
+
+- Issue #13183: Fix pdb skipping frames after hitting a breakpoint and running
+ step. Patch by Xavier de Gaye.
+
+- Issue #14664: It is now possible to use @unittest.skip{If,Unless} on a
+ test class that doesn't inherit from TestCase (i.e. a mixin).
+
+- Issue #14160: TarFile.extractfile() failed to resolve symbolic links when
+ the links were not located in an archive subdirectory.
+
+- Issue #14638: pydoc now treats non-string __name__ values as if they
+ were missing, instead of raising an error.
+
+- Issue #13684: Fix httplib tunnel issue of infinite loops for certain sites
+ which send EOF without trailing \r\n.
+
+- Issue #14308: Fix an exception when a "dummy" thread is in the threading
+ module's active list after a fork().
+
+- 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 #13496: Fix potential overflow in bisect.bisect algorithm when applied
+ to a collection of size > sys.maxsize / 2.
+
+- Issue #14399: zipfile now recognizes that the archive has been modified even
+ if only the comment is changed. As a consequence of this fix, ZipFile is now
+ a new style class.
+
+- 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 #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 #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 #13694: asynchronous connect in asyncore.dispatcher does not set addr
+ attribute.
+
+- Issue #10484: Fix the CGIHTTPServer's PATH_INFO handling problem.
+
+- Issue #11199: Fix the with urllib which hangs on particular ftp urls.
+
+- Issue #14252: Fix subprocess.Popen.terminate() to not raise an error under
+ Windows when the child process has already exited.
+
+- 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 #14159: Fix the len() of weak sets to return a better approximation
+ when some objects are dead or dying. Moreover, the implementation is now
+ O(1) rather than O(n).
+
+- Issue #2945: Make the distutils upload command aware of bdist_rpm products.
+
+- Issue #6884: Fix long-standing bugs with MANIFEST.in parsing in distutils
+ on Windows.
+
+- Issue #16441: Avoid excessive memory usage working with large gzip
+ files using the gzip module.
+
+- Issue #15782: Prevent compile errors of OS X Carbon modules _Fm, _Qd, and
+ _Qdoffs when compiling with an SDK of 10.7 or later. The OS X APIs they
+ wrap have long been deprecated and have now been removed with 10.7.
+ These modules were already empty for 64-bit builds and have been removed
+ in Python 3.
+
+Extension Modules
+-----------------
+
+- Issue #17477: Update the bsddb module to pybsddb 5.3.0, supporting
+ db-5.x, and dropping support for db-4.1 and db-4.2.
+
+- Issue #17192: Update the ctypes module's libffi to v3.0.13. This
+ specifically addresses a stack misalignment issue on x86 and issues on
+ some more recent platforms.
+
+- Issue #12268: The io module file object write methods no longer abort early
+ when a write system calls is interrupted (EINTR).
+
+- Fix the leak of a dict in the time module when used in an embedded
+ interpreter that is repeatedly initialized and shutdown and reinitialized.
+
+- Issue #12268: File readline, readlines and read or readall methods
+ no longer lose data when an underlying read system call is interrupted
+ within an io module object. IOError is no longer raised due to a read
+ system call returning EINTR from within these methods.
+
+- Issue #16012: Fix a regression in pyexpat. The parser's UseForeignDTD()
+ method doesn't require an argument again.
+
+- Issue #13590: OS X Xcode 4 - improve support for universal extension modules
+ In particular, fix extension module build failures when trying to use
+ 32-bit-only installer Pythons on systems with Xcode 4 (currently
+ OS X 10.8, 10.7, and optionally 10.6).
+ * Backport 3.3.0 fixes to 2.7 branch (for release in 2.7.4)
+ * Since Xcode 4 removes ppc support, extension module builds now
+ check for ppc compiler support and by default remove ppc and
+ ppc64 archs when they are not available.
+ * Extension module builds now revert to using system installed
+ headers and libs (/usr and /System/Library) if the SDK used
+ to build the interpreter is not installed or has moved.
+ * Try to avoid building extension modules with deprecated
+ and problematic Apple llvm-gcc compiler. If original compiler
+ is not available, use clang instead by default.
+
+IDLE
+----
+
+- IDLE was displaying spurious SystemExit tracebacks when running scripts
+ that terminated by raising SystemExit (i.e. unittest and turtledemo).
+
+- Issue #9290: In IDLE the sys.std* streams now implement io.TextIOBase
+ interface and support all mandatory methods and properties.
+
+- Issue #16829: IDLE printing no longer fails if there are spaces or other
+ special characters in the file path.
+
+- Issue #16819: IDLE method completion now correctly works for unicode literals.
+
+- Issue #16504: IDLE now catches SyntaxErrors raised by tokenizer. Patch by
+ Roger Serwy.
+
+- Issue #1207589: Add Cut/Copy/Paste items to IDLE right click Context Menu
+ Patch by Todd Rovito.
+
+- Issue #13052: Fix IDLE crashing when replace string in Search/Replace dialog
+ ended with '\'. Patch by Roger Serwy.
+
+- Issue #9803: Don't close IDLE on saving if breakpoint is open.
+ Patch by Roger Serwy.
+
+- Issue #14958: Change IDLE systax highlighting to recognize all string and byte
+ literals currently supported in Python 2.7.
+
+- Issue #14962: Update text coloring in IDLE shell window after changing
+ options. Patch by Roger Serwy.
+
+- Issue #10997: Prevent a duplicate entry in IDLE's "Recent Files" menu.
+
+- Issue #12510: Attempting to get invalid tooltip no longer closes IDLE.
+ Original patch by Roger Serwy.
+
+- Issue #10365: File open dialog now works instead of crashing
+ even when parent window is closed. Patch by Roger Serwy.
+
+- Issue #14876: Use user-selected font for highlight configuration.
+ Patch by Roger Serwy.
+
+- 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 #3573: IDLE hangs when passing invalid command line args
+ (directory(ies) instead of file(s)) (Patch by Guilherme Polo)
+
+- Issue #5219: Prevent event handler cascade in IDLE.
+
+Tests
+-----
+
+- Issue #16702: test_urllib2_localnet tests now correctly ignores proxies for
+ localhost tests.
+
+- Issue #13447: Add a test file to host regression tests for bugs in the
+ scripts found in the Tools directory.
+
+- Issue #11420: make test suite pass with -B/DONTWRITEBYTECODE set.
+ Initial patch by Thomas Wouters.
+
+- Issue #17299: Add test coverage for cPickle with file objects and general IO
+ objects. Original patch by Aman Shah.
+
+- Issue #11963: remove human verification from test_parser and test_subprocess.
+
+- Issue #17249: convert a test in test_capi to use unittest and reap threads.
+
+- We now run both test_email.py and test_email_renamed.py when running the
+ test_email regression test. test_email_renamed contains some tests that
+ test_email does not.
+
+- Issue #17041: Fix testing when Python is configured with the
+ --without-doc-strings option.
+
+- Issue #15539: Added regression tests for Tools/scripts/pindent.py.
+
+- Issue #15324: Fix regrtest parsing of --fromfile and --randomize options.
+
+- Issue #16618: Add more regression tests for glob.
+ Patch by Serhiy Storchaka.
+
+- Issue #16664: Add regression tests for glob's behaviour concerning entries
+ starting with a ".". Patch by Sebastian Kreft.
+
+- Issue #15747: ZFS always returns EOPNOTSUPP when attempting to set the
+ UF_IMMUTABLE flag (via either chflags or lchflags); refactor affected
+ tests in test_posix.py to account for this.
+
+- Issue #16549: Add tests for json.tools. Initial patch by Berker Peksag
+ and Serhiy Storchaka.
+
+- Issue #16559: Add more tests for the json module, including some from the
+ official test suite at json.org. Patch by Serhiy Storchaka.
+
+- Issue #16274: Fix test_asyncore on Solaris. Patch by Giampaolo Rodola'.
+
+- Issue #15040: Close files in mailbox tests for PyPy compatibility.
+ Original patch by Matti Picus.
+
+- Issue #15802: Fix test logic in TestMaildir.test_create_tmp. Patch
+ by Serhiy Storchaka.
+
+- Issue #15765: Extend a previous fix to Solaris and OpenBSD for quirky
+ getcwd() behaviour (issue #9185) to NetBSD as well.
+
+- Issue #15615: Add some tests for the json module's handling of invalid
+ input data. Patch by Kushal Das.
+
+- Issue #15496: Add directory removal helpers for tests on Windows.
+ Patch by Jeremy Kloth.
+
+- Issue #15043: test_gdb is now skipped entirely if gdb security settings
+ block loading of the gdb hooks
+
+- Issue #14589: Update certificate chain for sha256.tbs-internet.com, fixing
+ a test failure in test_ssl.
+
+- Issue #16698: Skip posix test_getgroups when built with OS X
+ deployment target prior to 10.6.
+
+- Issue #17111: Prevent test_surrogates (test_fileio) failure on OS X 10.4.
+
+Build
+-----
+
+- Issue #17425: Build against openssl 0.9.8y on Windows.
+
+- Issue #16004: Add `make touch`.
+
+- Issue #5033: Fix building of the sqlite3 extension module when the
+ SQLite library version has "beta" in it. Patch by Andreas Pelme.
+
+- Issue #17228: Fix building without pymalloc.
+
+- Issue #17086: Backport the patches from the 3.3 branch to cross-build
+ the package.
+
+- Issue #3754: fix typo in pthread AC_CACHE_VAL.
+
+- Issue #17029: Let h2py search the multiarch system include directory.
+
+- Issue #16953: Fix socket module compilation on platforms with
+ HAVE_BROKEN_POLL. Patch by Jeffrey Armstrong.
+
+- Issue #16836: Enable IPv6 support even if IPv6 is disabled on the build host.
+
+- Issue #15923: fix a mistake in asdl_c.py that resulted in a TypeError after
+ 2801bf875a24 (see #15801).
+
+- Issue #11715: Fix multiarch detection without having Debian development
+ tools (dpkg-dev) installed.
+
+- Issue #15819: Make sure we can build Python out-of-tree from a readonly
+ source directory. (Somewhat related to Issue #9860.)
+
+- Issue #15822: Ensure 2to3 grammar pickles are properly installed.
+
+- Issue #15560: Fix building _sqlite3 extension on OS X with an SDK.
+
+- Issue #8847: Disable COMDAT folding in Windows PGO builds.
+
+- Issue #14018: Fix OS X Tcl/Tk framework checking when using OS X SDKs.
+
+- Issue #16256: OS X installer now sets correct permissions for doc directory.
+
+- Issue #8767: Restore building with --disable-unicode.
+ Patch by Stefano Taschini.
+
+- Build against bzip2 1.0.6 and openssl 0.9.8x on Windows.
+
+- Issue #14557: Fix extensions build on HP-UX. Patch by Adi Roiban.
+
+- Issue #14437: Fix building the _io module under Cygwin.
+
+- Issue #15587: Enable Tk high-resolution text rendering on Macs with
+ Retina displays. Applies to Tkinter apps, such as IDLE, on OS X
+ framework builds linked with Cocoa Tk 8.5.
+
+- Issue #17161: make install now also installs a python2 and python man page.
+
+- Issue #16848: python-config now returns proper --ldflags values for OS X
+ framework builds.
+
+Tools/Demos
+-----------
+
+- Issue #17156: pygettext.py now correctly escapes non-ascii characters.
+
+- Issue #15539: Fix a number of bugs in Tools/scripts/pindent.py. Now
+ pindent.py works with a "with" statement. pindent.py no longer produces
+ improper indentation. pindent.py now works with continued lines broken after
+ "class" or "def" keywords and with continuations at the start of line.
+
+- Issue #16476: Fix json.tool to avoid including trailing whitespace.
+
+- Issue #13301: use ast.literal_eval() instead of eval() in Tools/i18n/msgfmt.py
+ Patch by Serhiy Storchaka.
+
+Documentation
+-------------
+
+- Issue #15041: Update "see also" list in tkinter documentation.
+
+- Issue #17412: update 2.7 Doc/make.bat to also use sphinx-1.0.7.
+
+- Issue #17047: remove doubled words in docs and docstrings
+ reported by Serhiy Storchaka and Matthew Barnett.
+
+- Issue #16406: combine the pages for uploading and registering to PyPI.
+
+- Issue #16403: Document how distutils uses the maintainer field in
+ PKG-INFO. Patch by Jyrki Pulliainen.
+
+- Issue #16695: Document how glob handles filenames starting with a
+ dot. Initial patch by Jyrki Pulliainen.
+
+- Issue #8890: Stop advertising an insecure practice by replacing uses
+ of the /tmp directory with better alternatives in the documentation.
+ Patch by Geoff Wilson.
+
+- Issue #17203: add long option names to unittest discovery docs.
+
+- Issue #13094: add "Why do lambdas defined in a loop with different values
+ all return the same result?" programming FAQ.
+
+- Issue #14901: Update portions of the Windows FAQ.
+ Patch by Ashish Nitin Patil.
+
+- Issue #15990: Improve argument/parameter documentation.
+
+- Issue #16400: Update the description of which versions of a given package
+ PyPI displays.
+
+- Issue #15677: Document that zlib and gzip accept a compression level of 0 to
+ mean 'no compression'. Patch by Brian Brazil.
+
+- Issue #8040: added a version switcher to the documentation. Patch by
+ Yury Selivanov.
+
+- Issue #16115: Improve subprocess.Popen() documentation around args, shell,
+ and executable arguments.
+
+- Issue #15979: Improve timeit documentation.
+
+- Issue #16036: Improve documentation of built-in int()'s signature and
+ arguments.
+
+- Issue #15935: Clarification of argparse docs, re: add_argument() type and
+ default arguments. Patch contributed by Chris Jerdonek.
+
+- Issue #13769: Document the effect of ensure_ascii to the return type
+ of JSON decoding functions.
+
+- Issue #14880: Fix kwargs notation in csv.reader, .writer & .register_dialect.
+ Patch by Chris Rebert.
+
+- Issue #14674: Add a discussion of the json module's standard compliance.
+ Patch by Chris Rebert.
+
+- Issue #15630: Add an example for "continue" stmt in the tutorial. Patch by
+ Daniel Ellis.
+
+- Issue #13557: Clarify effect of giving two different namespaces to exec or
+ execfile().
+
+- Issue #14034: added the argparse tutorial.
+
+- Issue #15250: Document that filecmp.dircmp compares files shallowly. Patch
+ contributed by Chris Jerdonek.
+
+- Issue #15116: Remove references to appscript as it is no longer being
+ supported.
+
+
+What's New in Python 2.7.3 release candidate 2?
+===============================================
+
+*Release date: 2012-03-17*
+
+Library
+-------
+
+- 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 2.7.3 release candidate 1?
+===============================================
+
+*Release date: 2012-02-23*
+
+Core and Builtins
+-----------------
+
+- Issue #13020: Fix a reference leak when allocating a structsequence object
+ fails. Patch by Suman Saha.
+
+- 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 #11235: Fix OverflowError when trying to import a source file whose
+ modification time doesn't fit in a 32-bit timestamp.
+
+- Issue #11638: Unicode strings in 'name' and 'version' no longer cause
+ UnicodeDecodeErrors.
+
+- 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.
+
+- Issue #13546: Fixed an overflow issue that could crash the intepreter when
+ calling sys.setrecursionlimit((1<<31)-1).
+
+- Issue #13333: The UTF-7 decoder now accepts lone surrogates (the encoder
+ already accepts them).
+
+- Issue #10519: Avoid unnecessary recursive function calls in
+ setobject.c.
+
+- Issue #13268: Fix the assert statement when a tuple is passed as the message.
+
+- Issue #13018: Fix reference leaks in error paths in dictobject.c.
+ Patch by Suman Saha.
+
+- Issue #12604: VTRACE macro expanded to no-op in _sre.c to avoid compiler
+ warnings. Patch by Josh Triplett and Petri Lehtinen.
+
+- 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.
+
+- Issue #13186: Fix __delitem__ on old-style instances when invoked through
+ PySequence_DelItem.
+
+- Issue #13156: Revert the patch for issue #10517 (reset TLS upon fork()),
+ which was only relevant for the native pthread TLS implementation.
+
+- Issue #7732: Fix a crash on importing a module if a directory has the same
+ name than a Python module (e.g. "__init__.py"): don't close the file twice.
+
+- Issue #12973: Fix overflow checks that invoked undefined behaviour in
+ int.__pow__. These overflow checks were causing int.__pow__ to produce
+ incorrect results with recent versions of Clang, as a result of the
+ compiler optimizing the check away. Also fix similar overflow checks
+ in list_repeat (listobject.c) and islice_next (itertoolsmodule.c). These
+ bugs caused test failures with recent versions of Clang.
+
+- Issue #12266: Fix str.capitalize() to correctly uppercase/lowercase
+ titlecased and cased non-letter characters.
+
+- Issues #12610 and #12609: Verify that user generated AST has correct string
+ and identifier types before compiling.
+
+- Issue #11627: Fix segfault when __new__ on a exception returns a
+ non-exception class.
+
+- Issue #12149: Update the method cache after a type's dictionnary 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 #12501: Remove Py3k warning for callable. callable() is supported
+ again in Python 3.2.
+
+- Issue #9611, #9015: FileIO.read(), FileIO.readinto(), FileIO.write() and
+ os.write() clamp the length to INT_MAX on Windows.
+
+- 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 #10860: httplib now correctly handles an empty port after port
+ delimiter in URLs.
+
+- dict_proxy objects now display their contents rather than just the class
+ name.
+
+Library
+-------
+
+- 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 #14001: CVE-2012-0845: xmlrpc: Fix an endless loop in
+ SimpleXMLRPCServer upon malformed POST request.
+
+- Issue #2489: pty.spawn could consume 100% cpu when it encountered an EOF.
+
+- Issue #13014: Fix a possible reference leak in SSLSocket.getpeercert().
+
+- Issue #13987: HTMLParser is now able to handle EOFs in the middle of a
+ construct and malformed start tags.
+
+- Issue #13015: Fix a possible reference leak in defaultdict.__repr__.
+ Patch by Suman Saha.
+
+- Issue #13979: A bug in ctypes.util.find_library that caused
+ the wrong library name to be returned has been fixed.
+
+- Issue #1326113: distutils' build_ext command --libraries option now
+ correctly parses multiple values separated by whitespace or commas.
+
+- Issue #13993: HTMLParser is now able to handle broken end tags.
+
+- Issue #13960: HTMLParser is now able to handle broken comments.
+
+- Issue #9750: Fix sqlite3.Connection.iterdump on tables and fields
+ with a name that is a keyword or contains quotes. Patch by Marko
+ Kohtala.
+
+- Issue #13994: Earlier partial revert of Distutils enhancements in 2.7
+ has left two versions of customize_compiler, the original in
+ distutils.sysconfig and another copy in distutils.ccompiler, with some
+ parts of distutils calling one and others using the other.
+ Complete the revert back to only having one in distutils.sysconfig as
+ is the case in 3.x.
+
+- Issue #13590: On OS X 10.7 and 10.6 with Xcode 4.2, building
+ Distutils-based packages with C extension modules may fail because
+ Apple has removed gcc-4.2, the version used to build python.org
+ 64-bit/32-bit Pythons. If the user does not explicitly override
+ the default C compiler by setting the CC environment variable,
+ Distutils will now attempt to compile extension modules with clang
+ if gcc-4.2 is required but not found. Also as a convenience, if
+ the user does explicitly set CC, substitute its value as the default
+ compiler in the Distutils LDSHARED configuration variable for OS X.
+ (Note, the python.org 32-bit-only Pythons use gcc-4.0 and the 10.4u
+ SDK, neither of which are available in Xcode 4. This change does not
+ attempt to override settings to support their use with Xcode 4.)
+
+- Issue #9021: Add an introduction to the copy module documentation.
+
+- Issue #6005: Examples in the socket library documentation use sendall, where
+ relevant, instead send method.
+
+- Issue #10811: Fix recursive usage of cursors. Instead of crashing,
+ raise a ProgrammingError now.
+
+- Issue #13676: Handle strings with embedded zeros correctly in sqlite3.
+
+- Issue #13806: The size check in audioop decompression functions was too
+ strict and could reject valid compressed data. Patch by Oleg Plakhotnyuk.
+
+- Issue #13885: CVE-2011-3389: the _ssl module would always disable the CBC
+ IV attack countermeasure.
+
+- Issue #6631: Disallow relative file paths in urllib urlopen methods.
+
+- Issue #13781: Prevent gzip.GzipFile from using the dummy filename provided by
+ file objects opened with os.fdopen().
+
+- Issue #13589: Fix some serialization primitives in the aifc module.
+ Patch by Oleg Plakhotnyuk.
+
+- Issue #13803: Under Solaris, distutils doesn't include bitness
+ in the directory name.
+
+- Issue #13642: Unquote before b64encoding user:password during Basic
+ Authentication. Patch contributed by Joonas Kuorilehto and Michele Orrù.
+
+- Issue #13636: Weak ciphers are now disabled by default in the ssl module
+ (except when SSLv2 is explicitly asked for).
+
+- Issue #12798: Updated the mimetypes documentation.
+
+- Issue #13639: Accept unicode filenames in tarfile.open(mode="w|gz").
+
+- Issue #1785: Fix inspect and pydoc with misbehaving descriptors.
+
+- Issue #7502: Fix equality comparison for DocTestCase instances. Patch by
+ Cédric Krier.
+
+- Issue #11870: threading: Properly reinitialize threads internal locks and
+ condition variables to avoid deadlocks in child processes.
+
+- Issue #8035: urllib: Fix a bug where the client could remain stuck after a
+ redirection or an error.
+
+- tarfile.py: Correctly detect bzip2 compressed streams with blocksizes
+ other than 900k.
+
+- Issue #13573: The csv.writer now uses the repr() for floats rather than str().
+ This allows floats to round-trip without loss of precision.
+
+- Issue #13439: Fix many errors in turtle docstrings.
+
+- 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 #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 #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
+ RawIOBase.write() is defined to returned None when the call would block.
+ Patch by sbt.
+
+- Issue #13358: HTMLParser now calls handle_data only once for each CDATA.
+
+- Issue #4147: minidom's toprettyxml no longer adds whitespace around a text
+ node when it is the only child of an element. Initial patch by Dan
+ Kenigsberg.
+
+- Issues #1745761, #755670, #13357, #12629, #1200313: HTMLParser now correctly
+ handles non-valid attributes, including adjacent and unquoted attributes.
+
+- Issue #13373: multiprocessing.Queue.get() could sometimes block indefinitely
+ when called with a timeout. Patch by Arnaud Ysmal.
+
+- Issue #3067: Enhance the documentation and docstring of
+ locale.setlocale().
+
+- Issue #13254: Fix Maildir initialization so that maildir contents
+ are read correctly.
+
+- Issue #13140: Fix the daemon_threads attribute of ThreadingMixIn.
+
+- Issue #2892: preserve iterparse events in case of SyntaxError.
+
+- Issue #670664: Fix HTMLParser to correctly handle the content of
+ ``<script>...</script>`` and ``<style>...</style>``.
+
+- Issue #10817: Fix urlretrieve function to raise ContentTooShortError even
+ when reporthook is None. Patch by Jyrki Pulliainen.
+
+- Issue #7334: close source files on ElementTree.parse and iterparse.
+
+- Issue #13232: logging: Improved logging of exceptions in the presence of
+ multiple encodings.
+
+- Issue #10332: multiprocessing: fix a race condition when a Pool is closed
+ before all tasks have completed.
+
+- Issue #1548891: The cStringIO.StringIO() constructor now encodes unicode
+ arguments with the system default encoding just like the write() method
+ does, instead of converting it to a raw buffer. This also fixes handling of
+ unicode input in the shlex module (#6988, #1170).
+
+- 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 #6090: zipfile raises a ValueError when a document with a timestamp
+ earlier than 1980 is provided. Patch contributed by Petri Lehtinen.
+
+- Issue #13194: zlib.compressobj().copy() and zlib.decompressobj().copy() are
+ now available on Windows.
+
+- Issue #13114: Fix the distutils commands check and register when the
+ long description is a Unicode string with non-ASCII characters.
+
+- Issue #7367: Fix pkgutil.walk_paths to skip directories whose
+ contents cannot be read.
+
+- Issue #7425: Prevent pydoc -k failures due to module import errors.
+ (Backport to 2.7 of existing 3.x fix)
+
+- Issue #13099: Fix sqlite3.Cursor.lastrowid under a Turkish locale.
+ Reported and diagnosed by Thomas Kluyver.
+
+- Issue #7689: Allow pickling of dynamically created classes when their
+ metaclass is registered with copy_reg. Patch by Nicolas M. Thiéry and
+ Craig Citro.
+
+- Issue #13058: ossaudiodev: fix a file descriptor leak on error. Patch by
+ Thomas Jarosch.
+
+- Issue #12931: xmlrpclib now encodes Unicode URI to ISO-8859-1, instead of
+ failing with a UnicodeDecodeError.
+
+- 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 #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 #12287: Fix a stack corruption in ossaudiodev module when the FD is
+ greater than FD_SETSIZE.
+
+- Issue #12839: Fix crash in zlib module due to version mismatch.
+ Fix by Richard M. Tew.
+
+- Issue #12786: Set communication pipes used by subprocess.Popen CLOEXEC to
+ avoid them being inherited by other subprocesses.
+
+- Issue #4106: Fix occasional exceptions printed out by multiprocessing on
+ interpreter shutdown.
+
+- Issue #11657: Fix sending file descriptors over 255 over a multiprocessing
+ Pipe.
+
+- Issue #12213: Fix a buffering bug with interleaved reads and writes that
+ could appear on io.BufferedRandom streams.
+
+- Issue #12326: sys.platform is now always 'linux2' on Linux, even if Python
+ is compiled on Linux 3.
+
+- Issue #13007: whichdb should recognize gdbm 1.9 magic numbers.
+
+- Issue #9173: Let shutil._make_archive work if the logger argument is None.
+
+- Issue #12650: Fix a race condition where a subprocess.Popen could leak
+ resources (FD/zombie) when killed at the wrong time.
+
+- Issue #12752: Fix regression which prevented locale.normalize() from
+ accepting unicode strings.
+
+- Issue #12683: urlparse updated to include svn as schemes that uses relative
+ paths. (svn from 1.5 onwards support relative path).
+
+- Issue #11933: Fix incorrect mtime comparison in distutils.
+
+- Issues #11104, #8688: Fix the behavior of distutils' sdist command with
+ manually-maintained MANIFEST files.
+
+- Issue #8887: "pydoc somebuiltin.somemethod" (or help('somebuiltin.somemethod')
+ in Python code) now finds the doc of the method.
+
+- Issue #12603: Fix pydoc.synopsis() on files with non-negative st_mtime.
+
+- Issue #12514: Use try/finally to assure the timeit module restores garbage
+ collections when it is done.
+
+- Issue #12607: In subprocess, fix issue where if stdin, stdout or stderr is
+ given as a low fd, it gets overwritten.
+
+- 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 and setting/getting locales under Turkish
+ locales.
+
+- Issue #10883: Fix socket leaks in urllib when using FTP.
+
+- Issue #12592: Make Python build on OpenBSD 5 (and future major releases).
+
+- Issue #12372: POSIX semaphores are broken on AIX: don't use them.
+
+- 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.
+
+- Issue #11603: Fix a crash when __str__ is rebound as __repr__. Patch by
+ Andreas Stührk.
+
+- Issue #12502: asyncore: fix polling loop with AF_UNIX sockets.
+
+- Issue #4376: ctypes now supports nested structures in a endian different than
+ the parent structure. Patch by Vlad Riscutia.
+
+- 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.
+
+- Issue #12352: Fix a deadlock in multiprocessing.Heap when a block is freed by
+ the garbage collector while the Heap lock is held.
+
+- Issue #9516: On Mac OS X, change Distutils to no longer globally attempt to
+ check or set the MACOSX_DEPLOYMENT_TARGET environment variable for the
+ interpreter process. This could cause failures in non-Distutils subprocesses
+ and was unreliable since tests or user programs could modify the interpreter
+ environment after Distutils set it. Instead, have Distutils set the
+ deployment target only in the environment of each build subprocess. It is
+ 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.
+
+- Issue #11802: The cache in filecmp now has a maximum size of 100 so that
+ it won't grow without bound.
+
+- Issue #12404: Remove C89 incompatible code from mmap module. Patch by Akira
+ Kitada.
+
+- Issue #11700: mailbox proxy object close methods can now be called multiple
+ times without error, and _ProxyFile now closes the wrapped file.
+
+- Issue #12133: AbstractHTTPHandler.do_open() of urllib.request closes the HTTP
+ connection if its getresponse() method fails with a socket error. Patch
+ written by Ezio Melotti.
+
+- Issue #9284: Allow inspect.findsource() to find the source of doctest
+ functions.
+
+- Issue #10694: zipfile now ignores garbage at the end of a zipfile.
+
+- Issue #11583: Speed up os.path.isdir on Windows by using GetFileAttributes
+ instead of os.stat.
+
+- Issue #12080: Fix a performance issue in Decimal._power_exact that caused
+ some corner-case Decimal.__pow__ calls to take an unreasonably long time.
+
+- Named tuples now work correctly with vars().
+
+- sys.setcheckinterval() now updates the current ticker count as well as
+ updating the check interval, so if the user decreases the check interval,
+ the ticker doesn't have to wind down to zero from the old starting point
+ before the new interval takes effect. And if the user increases the
+ interval, it makes sure the new limit takes effect right away rather have an
+ early task switch before recognizing the new interval.
+
+- 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.
+
+Extension Modules
+-----------------
+
+- Issue #9041: An issue in ctypes.c_longdouble, ctypes.c_double, and
+ ctypes.c_float that caused an incorrect exception to be returned in the
+ case of overflow has been fixed.
+
+- bsddb module: Erratic behaviour of "DBEnv->rep_elect()" because a typo.
+ Possible crash.
+
+- Issue #13774: json: Fix a SystemError when a bogus encoding is passed to
+ json.loads().
+
+- Issue #9975: socket: Fix incorrect use of flowinfo and scope_id. Patch by
+ Vilmos Nebehaj.
+
+- Issue #13159: FileIO, BZ2File, and the built-in file class now use a
+ linear-time buffer growth strategy instead of a quadratic 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 #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.
+
+- Issue #12764: Fix a crash in ctypes when the name of a Structure field is not
+ a string.
+
+- 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.
+
+IDLE
+----
+
+- Issue #964437 Make IDLE help window non-modal.
+ Patch by Guilherme Polo and Roger Serwy.
+
+- Issue #13933: IDLE auto-complete did not work with some imported
+ module, like hashlib. (Patch by Roger Serwy)
+
+- Issue #13506: Add '' to path for IDLE Shell when started and restarted with Restart Shell.
+ Original patches by Marco Scataglini and Roger Serwy.
+
+- 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)
+
+- Issue #8793: Prevent IDLE crash when given strings with invalid hex escape
+ sequences.
+
+- Issue #13296: Fix IDLE to clear compile __future__ flags on shell restart.
+ (Patch by Roger Serwy)
+
+Build
+-----
+
+- Issue #6807: Run msisupport.mak earlier.
+
+- Issue #10580: Minor grammar change in Windows installer.
+
+- Issue #12627: Implement PEP 394 for Python 2.7 ("python2").
+
+- 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).
+
+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 #10639: reindent.py no longer converts newlines and will raise
+ an error if attempting to convert a file with mixed newlines.
+
+- Issue #13628: python-gdb.py is now able to retrieve more frames in the Python
+ traceback if Python is optimized.
+
+Tests
+-----
+
+- Issue #15467: Move helpers for __sizeof__ tests into test_support.
+ Patch by Serhiy Storchaka.
+
+- Issue #11689: Fix a variable scoping error in an sqlite3 test.
+ Initial patch by Torsten Landschoff.
+
+- Issue #10881: Fix test_site failures with OS X framework builds.
+
+- Issue #13901: Prevent test_distutils failures on OS X with --enable-shared.
+
+- 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.
+
+- Issue #12331: The test suite for lib2to3 can now run from an installed
+ Python.
+
+- 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 #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 #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 #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
+ on Mac OS X. (Patch by Ronald Oussoren)
+
+- Issue #12057: Add tests for ISO 2022 codecs (iso2022_jp, iso2022_jp_2,
+ iso2022_kr).
+
+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, OS/2, and RiscOS.
+
+- 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 2.7.2?
+===========================
+
+*Release date: 2011-06-11*
+
+Library
+-------
+
+- Issue #12009: Fixed regression in netrc file comment handling.
+
+Extension Modules
+-----------------
+
+- Issue #1221: Make pyexpat.__version__ equal to the Python version.
+
+
+What's New in Python 2.7.2 release candidate 1?
+===============================================
+
+*Release date: 2011-05-29*
+
+Core and Builtins
+-----------------
+
+- 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)
+
+- Correct lookup of __dir__ on objects. This allows old-style classes to have
+ __dir__. It also causes errors besides AttributeError found on lookup to be
+ propagated.
+
+- 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 #8651: PyArg_Parse*() functions raise an OverflowError if the file
+ doesn't have PY_SSIZE_T_CLEAN define and the size doesn't fit in an int
+ (length bigger than 2^31-1 bytes).
+
+- Issue #8651: Fix "z#" format of PyArg_Parse*() function: the size was not
+ written if PY_SSIZE_T_CLEAN is defined.
+
+- 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 #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. u"\U00012345"[0]).
+
+- 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 #11144: Ensure that int(a_float) returns an int whenever possible.
+ Previously, there were some corner cases where a long was returned even
+ though the result was within the range of an int.
+
+- 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 #10451: memoryview objects could allow to mutate a readable buffer.
+ Initial patch by Ross Lagerwall.
+
+- Issue #10892: Don't segfault when trying to delete __abstractmethods__ from a
+ class.
+
+- Issue #8020: Avoid a crash where the small objects allocator would read
+ non-Python managed memory while it is being modified by another thread.
+ Patch by Matt Bandy.
+
+- Issue #11004: Repaired edge case in deque.count().
+
+- Issue #8278: On Windows and with a NTFS filesystem, os.stat() and os.utime()
+ can now handle dates after 2038.
+
+- Issue #4236: Py_InitModule4 now checks the import machinery directly
+ rather than the Py_IsInitialized flag, avoiding a Fatal Python
+ error in certain circumstances when an import is done in __del__.
+
+- Issue #11828: startswith and endswith don't accept None as slice index.
+ Patch by Torsten Becker.
+
+- Issue #10674: Remove unused 'dictmaker' rule from grammar.
+
+- Issue #10596: Fix float.__mod__ to have the same behaviour as
+ float.__divmod__ with respect to signed zeros. -4.0 % 4.0 should be
+ 0.0, not -0.0.
+
+- Issue #11386: bytearray.pop() now throws IndexError when the bytearray is
+ empty, instead of OverflowError.
+
+Library
+-------
+
+- Issue #12161: Cause StringIO.getvalue() to raise a ValueError when used on a
+ closed StringIO instance.
+
+- Issue #12182: Fix pydoc.HTMLDoc.multicolumn() if Python uses the new (true)
+ division (python -Qnew). Patch written by Ralf W. Grosse-Kunstleve.
+
+- 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.
+
+- Issue #1441530: In imaplib, use makefile() to wrap the SSL socket to avoid
+ heap fragmentation and MemoryError with some malloc implementations.
+
+- 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 #12124: zipimport doesn't keep a reference to zlib.decompress() anymore
+ to be able to unload the module.
+
+- 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 #9516: avoid errors in sysconfig when MACOSX_DEPLOYMENT_TARGET is
+ set in shell.
+
+- Issue #12050: zlib.decompressobj().decompress() now clears the unconsumed_tail
+ attribute when called without a max_length argument.
+
+- Issue #12062: In the `io` module, fix a flushing bug when doing a certain
+ type of I/O sequence on a file opened in read+write mode (namely: reading,
+ seeking a bit forward, writing, then seeking before the previous write but
+ still within buffered data, and writing again).
+
+- 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 #12012: ssl.PROTOCOL_SSLv2 becomes optional.
+
+- Issue #11927: SMTP_SSL now uses port 465 by default as documented. Patch
+ by Kasun Herath.
+
+- 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 #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 #11982: fix json.loads('""') to return u'' rather than ''.
+
+- 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 #10761: Fix tarfile.extractall failure when symlinked files are
+ present. Initial patch by Scott Leerssen.
+
+- 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 #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.
+
+- Issue #11875: collections.OrderedDict's __reduce__ was temporarily
+ mutating the object instead of just working on a copy.
+
+- Issue #11442: Add a charset parameter to the Content-type in SimpleHTTPServer
+ to avoid XSS attacks.
+
+- Issue #11467: Fix urlparse behavior when handling urls which contains scheme
+ specific part only digits. Patch by Santoso Wijaya.
+
+- collections.Counter().copy() now works correctly for subclasses.
+
+- Issue #11474: Fix the bug with url2pathname() handling of '/C|/' on Windows.
+ Patch by Santoso Wijaya.
+
+- Issue #9233: Fix json.loads('{}') to return a dict (instead of a list), when
+ _json is not available.
+
+- Issue #11703: urllib2.geturl() does not return correct url when the original
+ url contains #fragment.
+
+- Issue #10019: Fixed regression in json module where an indent of 0 stopped
+ adding newlines and acted instead like 'None'.
+
+- Issue #5162: Treat services like frozen executables to allow child spawning
+ from multiprocessing.forking on Windows.
+
+- Issue #4877: Fix a segfault in xml.parsers.expat while attempting to parse
+ a closed file.
+
+- Issue #11830: Remove unnecessary introspection code in the decimal module.
+ It was causing a failed import in the Turkish locale where the locale
+ sensitive str.upper() method caused a name mismatch.
+
+- 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.
+
+- Issue #7311: Fix HTMLParser to accept non-ASCII attribute values.
+
+- Issue #10963: Ensure that subprocess.communicate() never raises EPIPE.
+
+- Issue #11662: Make urllib and urllib2 ignore redirections if the
+ scheme is not HTTP, HTTPS or FTP (CVE-2011-1521).
+
+- Issue #11256: Fix inspect.getcallargs on functions that take only keyword
+ arguments.
+
+- Issue #11696: Fix ID generation in msilib.
+
+- Issue #9696: Fix exception incorrectly raised by xdrlib.Packer.pack_int when
+ trying to pack a negative (in-range) integer.
+
+- Issue #11675: multiprocessing.[Raw]Array objects created from an integer size
+ are now zeroed on creation. This matches the behaviour specified by the
+ documentation.
+
+- Issue #7639: Fix short file name generation in bdist_msi.
+
+- Issue #11666: let help() display named tuple attributes and methods
+ that start with a leading underscore.
+
+- Issue #11673: Fix multiprocessing Array and RawArray constructors to accept a
+ size of type 'long', rather than only accepting 'int'.
+
+- Issue #10042: Fixed the total_ordering decorator to handle cross-type
+ comparisons that could lead to infinite recursion.
+
+- Issue #10979: unittest stdout buffering now works with class and module
+ setup and teardown.
+
+- 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.
+
+- Issue #11500: Fixed a bug in the os x proxy bypass code for fully qualified
+ IP addresses in the proxy exception list.
+
+- Issue #11131: Fix sign of zero in plus and minus operations when
+ the context rounding mode is ROUND_FLOOR.
+
+- Issue #5622: Fix curses.wrapper to raise correct exception if curses
+ initialization fails.
+
+- 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 #11265: asyncore now correctly handles EPIPE, EBADF and EAGAIN errors
+ on accept(), send() and recv().
+
+- Issue #11326: Add the missing connect_ex() implementation for SSL sockets,
+ and make it work for non-blocking connects.
+
+- Issue #10956: Buffered I/O classes retry reading or writing after a signal
+ has arrived and the handler returned successfully.
+
+- Issue #10680: Fix mutually exclusive arguments for argument groups in
+ argparse.
+
+- 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 #10360: In WeakSet, do not raise TypeErrors when testing for
+ membership of non-weakrefable objects.
+
+- Issue #10549: Fix pydoc traceback when text-documenting certain classes.
+
+- Issue #940286: pydoc.Helper.help() ignores input/output init parameters.
+
+- Issue #11171: Fix detection of config/Makefile when --prefix !=
+ --exec-prefix, which caused Python to not start.
+
+- Issue #11116: any error during addition of a message to a mailbox now causes
+ a rollback, instead of leaving the mailbox partially modified.
+
+- Issue #8275: Fix passing of callback arguments with ctypes under Win64.
+ Patch by Stan Mihai.
+
+- Issue #10949: Improved robustness of rotating file handlers.
+
+- Issue #10955: Fix a potential crash when trying to mmap() a file past its
+ length. Initial patch by Ross Lagerwall.
+
+- Issue #10898: Allow compiling the posix module when the C library defines
+ a symbol named FSTAT.
+
+- Issue #10916: mmap should not segfault when a file is mapped using 0 as
+ length and a non-zero offset, and an attempt to read past the end of file
+ is made (IndexError is raised instead). Patch by Ross Lagerwall.
+
+- Issue #10875: Update Regular Expression HOWTO; patch by 'SilentGhost'.
+
+- Issue #10827: Changed the rules for 2-digit years. The time.asctime
+ function will now format any year when ``time.accept2dyear`` is
+ false and will accept years >= 1000 otherwise. The year range
+ accepted by ``time.mktime`` and ``time.strftime`` is still system
+ dependent, but ``time.mktime`` will now accept full range supported
+ by the OS. Conversion of 2-digit years to 4-digit is deprecated.
+
+- Issue #10869: Fixed bug where ast.increment_lineno modified the root
+ node twice.
+
+- Issue #7858: Raise an error properly when os.utime() fails under Windows
+ on an existing file.
+
+- Issue #3839: wsgiref should not override a Content-Length header set by
+ the application. Initial patch by Clovis Fabricio.
+
+- Issue #10806, issue #9905: Fix subprocess pipes when some of the standard
+ file descriptors (0, 1, 2) are closed in the parent process. Initial
+ patch by Ross Lagerwall.
+
+- Issue #4662: os.tempnam(), os.tmpfile() and os.tmpnam() now raise a py3k
+ DeprecationWarning.
+
+- Subclasses of collections.OrderedDict now work correctly with __missing__.
+
+- Issue #10753 - Characters ';', '=' and ',' in the PATH_INFO environment
+ variable won't be quoted when the URI is constructed by the wsgiref.util 's
+ request_uri method. According to RFC 3986, these characters can be a part of
+ params in PATH component of URI and need not be quoted.
+
+- Issue #10738: Fix webbrowser.Opera.raise_opts
+
+- Issue #9824: SimpleCookie now encodes , and ; in values to cater to how
+ browsers actually parse cookies.
+
+- Issue #1379416: eliminated a source of accidental unicode promotion in
+ email.header.Header.encode.
+
+- Issue #5258/#10642: if site.py encounters a .pth file that generates an error,
+ it now prints the filename, line number, and traceback to stderr and skips
+ the rest of that individual file, instead of stopping processing entirely.
+
+- Issue #10750: The ``raw`` attribute of buffered IO objects is now read-only.
+
+- Issue #10242: unittest.TestCase.assertItemsEqual makes too many assumptions
+ about input.
+
+- Issue #10611: SystemExit should not cause a unittest test run to exit.
+
+- Issue #6791: Limit header line length (to 65535 bytes) in http.client,
+ to avoid denial of services from the other party.
+
+- Issue #9907: Fix tab handling on OSX when using editline by calling
+ rl_initialize first, then setting our custom defaults, then reading .editrc.
+
+- Issue #4188: Avoid creating dummy thread objects when logging operations
+ from the threading module (with the internal verbose flag activated).
+
+- Issue #9721: Fix the behavior of urljoin when the relative url starts with a
+ ';' character. Patch by Wes Chow.
+
+- Issue #10714: Limit length of incoming request in http.server to 65536 bytes
+ for security reasons. Initial patch by Ross Lagerwall.
+
+- Issue #9558: Fix distutils.command.build_ext with VS 8.0.
+
+- Issue #10695: passing the port as a string value to telnetlib no longer
+ causes debug mode to fail.
+
+- Issue #10478: Reentrant calls inside buffered IO objects (for example by
+ way of a signal handler) now raise a RuntimeError instead of freezing the
+ current process.
+
+- Issue #10497: Fix incorrect use of gettext in argparse.
+
+- Issue #10464: netrc now correctly handles lines with embedded '#' characters.
+
+- Issue #1731717: Fixed the problem where subprocess.wait() could cause an
+ OSError exception when The OS had been told to ignore SIGCLD in our process
+ or otherwise not wait for exiting child processes.
+
+- Issue #9509: argparse now properly handles IOErrors raised by
+ argparse.FileType.
+
+- Issue #9348: Raise an early error if argparse nargs and metavar don't match.
+
+- Issue #8982: Improve the documentation for the argparse Namespace object.
+
+- Issue #9343: Document that argparse parent parsers must be configured before
+ their children.
+
+- Issue #9026: Fix order of argparse sub-commands in help messages.
+
+- Issue #9347: Fix formatting for tuples in argparse type= error messages.
+
+Extension Modules
+-----------------
+
+- Stop using the old interface for providing methods and attributes in the _sre
+ module. Among other things, this gives these classes ``__class__``
+ attributes. (See #12099)
+
+- Issue #10169: Fix argument parsing in socket.sendto() to avoid error masking.
+
+- Issue #12051: Fix segfault in json.dumps() while encoding highly-nested
+ objects using the C accelerations.
+
+- Issue #12017: Fix segfault in json.loads() while decoding highly-nested
+ objects using the C accelerations.
+
+- Issue #1838: Prevent segfault in ctypes, when _as_parameter_ on a class is set
+ to an instance of the class.
+
+- Issue #678250: Make mmap flush a noop on ACCESS_READ and ACCESS_COPY.
+
+IDLE
+----
+
+- Issue #11718: IDLE's open module dialog couldn't find the __init__.py
+ file in a package.
+
+- Issue #12590: IDLE editor window now always displays the first line
+ when opening a long file. With Tk 8.5, the first line was hidden.
+
+- Issue #11088: don't crash when using F5 to run a script in IDLE on MacOSX
+ with Tk 8.5.
+
+- Issue #10940: Workaround an IDLE hang on Mac OS X 10.6 when using the
+ menu accelerators for Open Module, Go to Line, and New Indent Width.
+ The accelerators still work but no longer appear in the menu items.
+
+- 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.
+
+- Issue #11052: Correct IDLE menu accelerators on Mac OS X for Save
+ commands.
+
+- Issue #6075: IDLE on Mac OS X now works with both Carbon AquaTk and
+ Cocoa AquaTk.
+
+- Issue #10404: Use ctl-button-1 on OSX for the context menu in Idle.
+
+- Issue #10107: Warn about unsaved files in IDLE on OSX.
+
+- Issue #10406: Enable Rstrip IDLE extension on OSX (just like on other
+ platforms).
+
+Build
+-----
+
+- 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 #11411: Fix 'make DESTDIR=' with a relative destination.
+
+- Issue #10709: Add updated AIX notes in Misc/README.AIX.
+
+- Issue #11184: Fix large-file support on AIX.
+
+- Issue #941346: Fix broken shared library build on AIX.
+
+- Issue #11268: Prevent Mac OS X Installer failure if Documentation
+ package had previously been installed.
+
+- Issue #11079: The /Applications/Python x.x folder created by the Mac
+ OS X installers now includes a link to the installed documentation.
+
+- Issue #11054: Allow Mac OS X installer builds to again work on 10.5 with
+ the system-provided Python.
+
+- Issue #10843: Update third-party library versions used in OS X
+ 32-bit installer builds: bzip2 1.0.6, readline 6.1.2, SQLite 3.7.4
+ (with FTS3/FTS4 and RTREE enabled), and ncursesw 5.5 (wide-char
+ support enabled).
+
+- Don't run pgen twice when using make -j.
+
+- Issue #7716: Under Solaris, don't assume existence of /usr/xpg4/bin/grep in
+ the configure script but use $GREP instead. Patch by Fabian Groffen.
+
+- Issue #10475: Don't hardcode compilers for LDSHARED/LDCXXSHARED on NetBSD
+ and DragonFly BSD. Patch by Nicolas Joly.
+
+- Issue #10655: Fix the build on PowerPC on Linux with GCC when building with
+ timestamp profiling (--with-tsc): the preprocessor test for the PowerPC
+ support now looks for "__powerpc__" as well as "__ppc__": the latter seems to
+ only be present on OS X; the former is the correct one for Linux with GCC.
+
+- Issue #1099: Fix the build on MacOSX when building a framework with pydebug
+ using GCC 4.0.
+
+Tests
+-----
+
+- Issue #11164: Remove obsolete allnodes test from minidom test.
+
+- Issue #12205: Fix test_subprocess failure due to uninstalled test data.
+
+- 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.
+
+- Fix test_startfile to wait for child process to terminate before finishing.
+
+- Issue #11719: Fix message about unexpected test_msilib skip on non-Windows
+ platforms. Patch by Nadeem Vawda.
+
+- Issue #7108: Fix test_commands to not fail when special attributes ('@'
+ or '.') appear in 'ls -l' output.
+
+- Issue #11490: test_subprocess:test_leaking_fds_on_error no longer gives a
+ false positive if the last directory in the path is inaccessible.
+
+- Issue #10822: Fix test_posix:test_getgroups failure under Solaris. Patch
+ by Ross Lagerwall.
+
+- Issue #6293: Have regrtest.py echo back sys.flags. This is done by default
+ in whole runs and enabled selectively using ``--header`` when running an
+ explicit list of tests. Original patch by Collin Winter.
+
+- Issue #775964: test_grp now skips YP/NIS entries instead of failing when
+ encountering them.
+
+- Issue #7110: regrtest now sends test failure reports and single-failure
+ tracebacks to stderr rather than stdout.
+
+
+What's New in Python 2.7.1?
+===========================
+
+*Release date: 2010-11-27*
+
+Library
+-------
+
+- Issue #2236: distutils' mkpath ignored the mode parameter.
+
+- Fix typo in one sdist option (medata-check).
+
+- Issue #10323: itertools.islice() now consumes the minimum number of
+ inputs before stopping. Formerly, the final state of the underlying
+ iterator was undefined.
+
+- Issue #10565: The collections.Iterator ABC now checks for both
+ ``__iter__`` and ``next``.
+
+- Issue #10092: Properly reset locale in calendar.Locale*Calendar classes.
+
+- Issue #10459: Update CJK character names to Unicode 5.2.
+
+- Issue #6098: Don't claim DOM level 3 conformance in minidom.
+
+- Issue #10561: In pdb, clear the breakpoints by the breakpoint number.
+
+- Issue #5762: Fix AttributeError raised by ``xml.dom.minidom`` when an empty
+ XML namespace attribute is encountered.
+
+- Issue #1710703: Write structures for an empty ZIP archive when a ZipFile is
+ created in modes 'a' or 'w' and then closed without adding any files. Raise
+ BadZipfile (rather than IOError) when opening small non-ZIP files.
+
+- Issue #4493: urllib2 adds '/' in front of path components which does not
+ start with '/. Common behavior exhibited by browsers and other clients.
+
+- Issue #10407: Fix one NameError in distutils.
+
+- Issue #10198: fix duplicate header written to wave files when writeframes()
+ is called without data.
+
+- Issue #10467: Fix BytesIO.readinto() after seeking into a position after the
+ end of the file.
+
+- Issue #5111: IPv6 Host in the Header is wrapped inside [ ]. Patch by Chandru.
+
+IDLE
+----
+
+- Issue #6378: idle.bat now runs with the appropriate Python version rather than
+ the system default. Patch by Sridhar Ratnakumar.
+
+Build
+-----
+
+- Backport r83399 to allow test_distutils to pass on installed versions.
+
+- Issue #1303434: Generate ZIP file containing all PDBs.
+
+Tests
+-----
+
+- Issue #9424: Replace deprecated assert* methods in the Python test suite.
+
+Documentation
+-------------
+
+- Issue #10299: List the built-in functions in a table in functions.rst.
+
+
+What's New in Python 2.7.1 release candidate 1?
+===============================================
+
+*Release date: 2010-11-13*
+
+Core and Builtins
+-----------------
+
+- Issue #10221: dict.pop(k) now has a key error message that includes the
+ missing key (same message d[k] returns for missing keys).
+
+- Issue #10125: Don't segfault when the iterator passed to
+ ``file.writelines()`` closes the file.
+
+- Issue #10186: Fix the SyntaxError caret when the offset is equal to the
+ length of the offending line.
+
+- Issue #9997: Don't let the name "top" have special significance in scope
+ resolution.
+
+- Issue #9862: Compensate for broken PIPE_BUF in AIX by hard coding
+ its value as the default 512 when compiling on AIX.
+
+- Issue #9675: CObject use is marked as a Py3k warning, not a deprecation
+ warning.
+
+- Issue #10068: Global objects which have reference cycles with their module's
+ dict are now cleared again. This causes issue #7140 to appear again.
+
+- Issue #9869: Make long() and PyNumber_Long return something of type
+ long for a class whose __long__ method returns a plain int. This
+ fixes an interpreter crash when initializing an instance of a long
+ subclass from an object whose __long__ method returns a plain int.
+
+- Issue #10006: type.__abstractmethods__ now raises an AttributeError.
+
+- Issue #9797: pystate.c wrongly assumed that zero couldn't be a valid
+ thread-local storage key.
+
+- Issue #4947: The write() method of sys.stdout and sys.stderr uses their
+ encoding and errors attributes instead of using utf-8 in strict mode, to get
+ the same behaviour than the print statement.
+
+- Issue #9737: Fix a crash when trying to delete a slice or an item from
+ a memoryview object.
+
+- Restore GIL in nis_cat in case of error.
+
+- Issue #9688: __basicsize__ and __itemsize__ must be accessed as Py_ssize_t.
+
+- Issue #8530: Prevent stringlib fastsearch from reading beyond the front
+ of an array.
+
+- Issue #83755: Implicit set-to-frozenset conversion was not thread-safe.
+
+- Issue #9416: Fix some issues with complex formatting where the
+ output with no type specifier failed to match the str output:
+
+ - format(complex(-0.0, 2.0), '-') omitted the real part from the output,
+ - format(complex(0.0, 2.0), '-') included a sign and parentheses.
+
+- Issue #7616: Fix copying of overlapping memoryview slices with the Intel
+ compiler.
+
+Library
+-------
+
+- Issue #9926: Wrapped TestSuite subclass does not get __call__ executed
+
+- Issue #4471: Properly shutdown socket in IMAP.shutdown(). Patch by
+ Lorenzo M. Catucci.
+
+- Issue #10126: Fix distutils' test_build when Python was built with
+ --enable-shared.
+
+- Fix typo in one sdist option (medata-check).
+
+- Issue #9199: Fix incorrect use of distutils.cmd.Command.announce.
+
+- Issue #1718574: Fix options that were supposed to accept arguments but did
+ not in build_clib.
+
+- Issue #9281: Prevent race condition with mkdir in distutils. Patch by
+ Arfrever.
+
+- Issue #10229: Fix caching error in gettext.
+
+- Issue #10252: Close file objects in a timely manner in distutils code and
+ tests. Patch by Brian Brazil, completed by Éric Araujo.
+
+- Issue #10311: The signal module now restores errno before returning from
+ its low-level signal handler. Patch by Hallvard B Furuseth.
+
+- Issue #10038: json.loads() on str should always return unicode (regression
+ from Python 2.6). Patch by Walter Dörwald.
+
+- Issue #120176: Wrapped TestSuite subclass does not get __call__ executed.
+
+- Issue #6706: asyncore accept() method no longer raises
+ EWOULDBLOCK/ECONNABORTED on incomplete connection attempt but returns None
+ instead.
+
+- Issue #10266: uu.decode didn't close in_file explicitly when it was given
+ as a filename. Patch by Brian Brazil.
+
+- Issue #10246: uu.encode didn't close file objects explicitly when filenames
+ were given to it. Patch by Brian Brazil.
+
+- Issue #10253: FileIO leaks a file descriptor when trying to open a file
+ for append that isn't seekable. Patch by Brian Brazil.
+
+- Issue #6105: json.dumps now respects OrderedDict's iteration order.
+
+- Issue #9295: Fix a crash under Windows when calling close() on a file
+ object with custom buffering from two threads at once.
+
+- Issue #5027: The standard ``xml`` namespace is now understood by
+ xml.sax.saxutils.XMLGenerator as being bound to
+ http://www.w3.org/XML/1998/namespace. Patch by Troy J. Farrell.
+
+- Issue #10163: Skip unreadable registry keys during mimetypes
+ initialization.
+
+- Issue #5117: Fixed root directory related issue on posixpath.relpath() and
+ ntpath.relpath().
+
+- Issue #9409: Fix the regex to match all kind of filenames, for interactive
+ debugging in doctests.
+
+- Issue #6612: Fix site and sysconfig to catch os.getcwd() error, eg. if the
+ current directory was deleted. Patch written by W. Trevor King.
+
+- Issue #10045: Improved performance when writing after seeking past the
+ end of the "file" in cStringIO.
+
+- Issue #9948: Fixed problem of losing filename case information.
+
+- Issue #9437: Fix building C extensions with non-default LDFLAGS.
+
+- Issue #9759: GzipFile now raises ValueError when an operation is attempted
+ after the file is closed. Patch by Jeffrey Finkelstein.
+
+- Issue #9042: Fix interaction of custom translation classes and caching in
+ gettext.
+
+- Issue #9065: tarfile no longer uses "root" as the default for the uname and
+ gname field.
+
+- Issue #1050268: parseaddr now correctly quotes double quote and backslash
+ characters that appear inside quoted strings in email addresses.
+
+- Issue #10004: quoprimime no longer generates a traceback when confronted
+ with invalid characters after '=' in a Q-encoded word.
+
+- Issue #9950: Fix socket.sendall() crash or misbehaviour when a signal is
+ received. Now sendall() properly calls signal handlers if necessary,
+ and retries sending if these returned successfully, including on sockets
+ with a timeout.
+
+- Issue #9947: logging: Fixed locking bug in stopListening.
+
+- Issue #9945: logging: Fixed locking bugs in addHandler/removeHandler.
+
+- Issue #9936: Fixed executable lines' search in the trace module.
+
+- Issue #9928: Properly initialize the types exported by the bz2 module.
+
+- Issue #9854: The default read() implementation in io.RawIOBase now
+ handles non-blocking readinto() returning None correctly.
+
+- Issue #9729: Fix the signature of SSLSocket.recvfrom() and
+ SSLSocket.sendto() to match the corresponding socket methods. Also,
+ fix various SSLSocket methods to raise socket.error rather than an
+ unhelpful TypeError when called on an unconnected socket. Original patch
+ by Andrew Bennetts.
+
+- Issue #9826: OrderedDict.__repr__ can now handle self-referential
+ values: d['x'] = d.
+
+- Issue #767645: Set os.path.supports_unicode_filenames to True on Mac OS X.
+
+- Issue #9837: The read() method of ZipExtFile objects (as returned by
+ ZipFile.open()) could return more bytes than requested.
+
+- Issue #9825: removed __del__ from the definition of collections.OrderedDict.
+ This prevents user-created self-referencing ordered dictionaries from
+ becoming permanently uncollectable GC garbage. The downside is that
+ removing __del__ means that the internal doubly-linked list has to wait for
+ GC collection rather than freeing memory immediately when the refcnt drops
+ to zero.
+
+- Issue #9816: random.Random.jumpahead(n) did not produce a sufficiently
+ different internal state for small values of n. Fixed by salting the
+ value.
+
+- Issue #9792: In case of connection failure, socket.create_connection()
+ would swallow the exception and raise a new one, making it impossible
+ to fetch the original errno, or to filter timeout errors. Now the
+ original error is re-raised.
+
+- Issue #9758: When fcntl.ioctl() was called with mutable_flag set to True,
+ and the passed buffer was exactly 1024 bytes long, the buffer wouldn't
+ be updated back after the system call. Original patch by Brian Brazil.
+
+- Issue #1100562: Fix deep-copying of objects derived from the list and
+ dict types. Patch by Michele Orrù and Björn Lindqvist.
+
+- Issue #7005: Fixed output of None values for RawConfigParser.write and
+ ConfigParser.write.
+
+- Issue #808164: Fixed socket.close to avoid references to globals, to
+ avoid issues when socket.close is called from a __del__ method.
+
+- Issue #2986: difflib.SequenceMatcher gets a new parameter, autojunk, which
+ can be set to False to turn off the previously undocumented 'popularity'
+ heuristic. Patch by Terry Reedy and Eli Bendersky
+
+- Issue #8797: urllib2 does a retry for Basic Authentication failure instead of
+ falling into recursion.
+
+- Issue #1194222: email.utils.parsedate now returns RFC2822 compliant four
+ character years even if the message contains RFC822 two character years.
+
+- Issue #8750: Fixed MutableSet's methods to correctly handle
+ reflexive operations, namely x -= x and x ^= x.
+
+- Issue #9129: smtpd.py is vulnerable to DoS attacks deriving from missing
+ error handling when accepting a new connection.
+
+- Issue #658749: asyncore's connect() method now correctly interprets winsock
+ errors.
+
+- Issue #9501: Fixed logging regressions in cleanup code.
+
+- Issue #9214: Set operations on KeysView or ItemsView in the collections
+ module now correctly return a set. (Patch by Eli Bendersky.)
+
+- Issue #9617: Signals received during a low-level write operation aren't
+ ignored by the buffered IO layer anymore.
+
+- Issue #2521: Use weakrefs on for caching in the abc module, so that classes
+ are not held onto after they are deleted elsewhere.
+
+- Issue #9626: the view methods for collections.OrderedDict() were returning
+ the unordered versions inherited from dict. Those methods are now
+ overridden to provide ordered views.
+
+- Issue #8688: MANIFEST files created by distutils now include a magic
+ comment indicating they are generated. Manually maintained MANIFESTs
+ without this marker will not be overwritten or removed.
+
+- Issue #7467: when reading a file from a ZIP archive, its CRC is checked
+ and a BadZipfile error is raised if it doesn't match (as used to be the
+ case in Python 2.5 and earlier).
+
+- Issue #9550: a BufferedReader could issue an additional read when the
+ original read request had been satisfied, which could block indefinitely
+ when the underlying raw IO channel was e.g. a socket. Report and original
+ patch by Jason V. Miller.
+
+- Issue #9551: Don't raise TypeError when setting the value to None for
+ SafeConfigParser instances constructed with allow_no_value == True.
+
+- Issue #6915: Under Windows, os.listdir() didn't release the Global
+ Interpreter Lock around all system calls. Original patch by Ryan Kelly.
+
+- Issue #3757: thread-local objects now support cyclic garbage collection.
+ Thread-local objects involved in reference cycles will be deallocated
+ timely by the cyclic GC, even if the underlying thread is still running.
+
+- Issue #6231: Fix xml.etree.ElementInclude to include the tail of the
+ current node.
+
+- Issue #6869: Fix a refcount problem in the _ctypes extension.
+
+- Issue5504 - ctypes should now work with systems where mmap can't be
+ PROT_WRITE and PROT_EXEC.
+
+- Fix Issue8280 - urllib2's Request method will remove fragements in the url.
+ This is how it is supposed to work, wget and curl do the same. Previous
+ behavior was wrong.
+
+- Issue #2944: asyncore doesn't handle connection refused correctly.
+
+- Issue #3196: email header decoding is now forgiving if an RFC2047
+ encoded word encoded in base64 is lacking padding.
+
+- Issue #9444: Argparse now uses the first element of prefix_chars as
+ the option character for the added 'h/help' option if prefix_chars
+ does not contain a '-', instead of raising an error.
+
+- Issue #9354: Provide getsockopt() in asyncore's file_wrapper.
+
+- Issue #9428: Fix running scripts with the profile/cProfile modules from
+ the command line.
+
+- Issue #7781: Fix restricting stats by entry counts in the pstats
+ interactive browser.
+
+- Issue #9209: Do not crash in the pstats interactive browser on invalid
+ regular expressions.
+
+- Issue #7372: Fix pstats regression when stripping paths from profile
+ data generated with the profile module.
+
+- Issue #4108: In urllib.robotparser, if there are multiple 'User-agent: *'
+ entries, consider the first one.
+
+- Issue #8397: Raise an error when attempting to mix iteration and regular
+ reads on a BZ2File object, rather than returning incorrect results.
+
+- Issue #5294: Fix the behavior of pdb's "continue" command when called
+ in the top-level debugged frame.
+
+- Issue #5727: Restore the ability to use readline when calling into pdb
+ in doctests.
+
+- Issue #6719: In pdb, do not stop somewhere in the encodings machinery
+ if the source file to be debugged is in a non-builtin encoding.
+
+- Issue #8048: Prevent doctests from failing when sys.displayhook has
+ been reassigned.
+
+- Issue #8015: In pdb, do not crash when an empty line is entered as
+ a breakpoint command.
+
+- Issue #9448: Fix a leak of OS resources (mutexes or semaphores) when
+ re-initializing a buffered IO object by calling its ``__init__`` method.
+
+- Issue #7909: Do not touch paths with the special prefixes ``\\.\``
+ or ``\\?\`` in ntpath.normpath().
+
+- Issue #5146: Handle UID THREAD command correctly in imaplib.
+
+- Issue #5147: Fix the header generated for cookie files written by
+ http.cookiejar.MozillaCookieJar.
+
+- Issue #8198: In pydoc, output all help text to the correct stream
+ when sys.stdout is reassigned.
+
+- Issue #7395: Fix tracebacks in pstats interactive browser.
+
+- Issue #8230: Fix Lib/test/sortperf.py.
+
+- Issue #1713: Fix os.path.ismount(), which returned true for symbolic links
+ across devices.
+
+- Issue #8826: Properly load old-style "expires" attribute in http.cookies.
+
+- Issue #1690103: Fix initial namespace for code run with trace.main().
+
+- Issue #8471: In doctest, properly reset the output stream to an empty
+ string when Unicode was previously output.
+
+- Issue #8620: when a Cmd is fed input that reaches EOF without a final
+ newline, it no longer truncates the last character of the last command line.
+
+- Issue #6213: Implement getstate() and setstate() methods of utf-8-sig and
+ utf-16 incremental encoders.
+
+- Issue #7113: Speed up loading in ConfigParser. Patch by Łukasz Langa.
+
+- Issue #3704: cookielib was not properly handling URLs with a / in the
+ parameters.
+
+- Issue #9032: XML-RPC client retries the request on EPIPE error. The EPIPE
+ error occurs when the server closes the socket and the client sends a big
+ XML-RPC request.
+
+- Issue #5542: Remove special logic that closes HTTPConnection socket on EPIPE.
+
+- Issue #4629: getopt raises an error if an argument ends with = whereas getopt
+ doesn't except a value (eg. --help= is rejected if getopt uses ['help='] long
+ options).
+
+- Issue #7895: platform.mac_ver() no longer crashes after calling os.fork()
+
+- Issue #5395: array.fromfile() would raise a spurious EOFError when an
+ I/O error occurred. Now an IOError is raised instead. Patch by chuck
+ (Jan Hosang).
+
+- Issue #7646: The fnmatch pattern cache no longer grows without bound.
+
+- Issue #9136: Fix 'dictionary changed size during iteration'
+ RuntimeError produced when profiling the decimal module. This was
+ due to a dangerous iteration over 'locals()' in Context.__init__.
+
+- Fix extreme speed issue in Decimal.pow when the base is an exact
+ power of 10 and the exponent is tiny (for example,
+ Decimal(10) ** Decimal('1e-999999999')).
+
+- Issue #9161: Fix regression in optparse's acceptance of unicode
+ strings in add_option calls.
+
+- Issue #9130: Fix validation of relative imports in parser module.
+
+- Issue #9128: Fix validation of class decorators in parser module.
+
+- Issue #9164: Ensure sysconfig handles dupblice archs while building on OSX
+
+- Issue #9315: Fix for the trace module to record correct class name
+ for tracing methods.
+
+Extension Modules
+-----------------
+
+- Issue #9054: Fix a crash occurring when using the pyexpat module
+ with expat version 2.0.1.
+
+- Issue #10003: Allow handling of SIGBREAK on Windows. Fixes a regression
+ introduced by issue #9324.
+
+- Issue #8734: Avoid crash in msvcrt.get_osfhandle() when an invalid file
+ descriptor is provided. Patch by Pascal Chambon.
+
+- Issue #7736: Release the GIL around calls to opendir() and closedir()
+ in the posix module. Patch by Marcin Bachry.
+
+- As a result of issue #2521, the _weakref module is now compiled into the
+ interpreter by default.
+
+- Issue #9324: Add parameter validation to signal.signal on Windows in order
+ to prevent crashes.
+
+- Issue #9526: Remove some outdated (int) casts that were preventing
+ the array module from working correctly with arrays of more than
+ 2**31 elements.
+
+- Fix memory leak in ssl._ssl._test_decode_cert.
+
+- Issue #8065: Fix memory leak in readline module (from failure to
+ free the result of history_get_history_state()).
+
+- Issue #9450: Fix memory leak in readline.replace_history_item and
+ readline.remove_history_item for readline version >= 5.0.
+
+- Issue #8105: Validate file descriptor passed to mmap.mmap on Windows.
+
+- Issue #1019882: Fix IndexError when loading certain hotshot stats.
+
+- Issue #9422: Fix memory leak when re-initializing a struct.Struct object.
+
+- Issue #7900: The getgroups(2) system call on MacOSX behaves rather oddly
+ compared to other unix systems. In particular, os.getgroups() does
+ not reflect any changes made using os.setgroups() but basicly always
+ returns the same information as the id command.
+
+ os.getgroups() can now return more than 16 groups on MacOSX.
+
+- Issue #9277: Fix bug in struct.pack for bools in standard mode
+ (e.g., struct.pack('>?')): if conversion to bool raised an exception
+ then that exception wasn't properly propagated on machines where
+ char is unsigned.
+
+- Issue #7567: Don't call `setupterm' twice.
+
+
+Tools/Demos
+-----------
+
+- Issue #7287: Demo/imputil/knee.py was removed.
+
+- Issue #9188: The gdb extension now handles correctly narrow (UCS2) as well
+ as wide (UCS4) unicode builds for both the host interpreter (embedded
+ inside gdb) and the interpreter under test.
+
+Build
+-----
+
+- Issue #8852: Allow the socket module to build on OpenSolaris.
+
+- Issue #10054: Some platforms provide uintptr_t in inttypes.h. Patch by
+ Akira Kitada.
+
+- Issue #10055: Make json C89-compliant in UCS4 mode.
+
+- Issue #1633863: Don't ignore $CC under AIX.
+
+- Issue #9810: Compile bzip2 source files in python's project file
+ directly. It used to be built with bzip2's makefile.
+
+- Issue #941346: Improve the build process under AIX and allow Python to
+ be built as a shared library. Patch by Sébastien Sablé.
+
+- Issue #4026: Make the fcntl extension build under AIX. Patch by Sébastien
+ Sablé.
+
+- Issue #3101: Helper functions _add_one_to_index_C() and
+ _add_one_to_index_F() become _Py_add_one_to_index_C() and
+ _Py_add_one_to_index_F(), respectively.
+
+- Issue #9700: define HAVE_BROKEN_POSIX_SEMAPHORES under AIX 6.x. Patch by
+ Sébastien Sablé.
+
+- Issue #9280: Make sharedinstall depend on sharedmods.
+
+- Issue #9275: The OSX installer once again installs links to binaries in
+ ``/usr/local/bin``.
+
+- Issue #9392: A framework build on OSX will once again use a versioned name
+ of the ``2to3`` tool, that is you can use ``2to3-2.7`` to select the Python
+ 2.7 edition of 2to3.
+
+- Issue #9701: The MacOSX installer can patch the shell profile to ensure that
+ the "bin" directory inside the framework is on the shell's search path. This
+ feature now also supports the ZSH shell.
+
+- Issue #7473: avoid link errors when building a framework with a different
+ set of architectures than the one that is currently installed.
+
+Tests
+-----
+
+- Issue #9978: Wait until subprocess completes initialization. (Win32KillTests
+ in test_os)
+
+- Issue #9894: Do not hardcode ENOENT in test_subprocess.
+
+- Issue #9323: Make test.regrtest.__file__ absolute, this was not always the
+ case when running profile or trace, for example.
+
+- Issue #9315: Added tests for the trace module. Patch by Eli Bendersky.
+
+- Strengthen test_unicode with explicit type checking for assertEqual tests.
+
+- Issue #8857: Provide a test case for socket.getaddrinfo.
+
+- Issue #7564: Skip test_ioctl if another process is attached to /dev/tty.
+
+- Issue #8433: Fix test_curses failure with newer versions of ncurses.
+
+- Issue #9496: Provide a test suite for the rlcompleter module. Patch by
+ Michele Orrù.
+
+- Issue #8605: Skip test_gdb if Python is compiled with optimizations.
+
+- Issue #9568: Fix test_urllib2_localnet on OS X 10.3.
+
+Documentation
+-------------
+
+- Issue #9817: Add expat COPYING file; add expat, libffi and expat licenses
+ to Doc/license.rst.
+
+- Issue #9524: Document that two CTRL* signals are meant for use only
+ with os.kill.
+
+- Issue #9255: Document that the 'test' package is for internal Python use
+ only.
+
+- Issue #7829: Document in dis that bytecode is an implementation detail.
+
+
+What's New in Python 2.7?
+=========================
+
+*Release date: 2010-07-03*
+
+Core and Builtins
+-----------------
+
+- Prevent assignment to set literals.
+
+Library
+-------
+
+- Issue #1868: Eliminate subtle timing issues in thread-local objects by
+ getting rid of the cached copy of thread-local attribute dictionary.
+
+- Issue #9125: Add recognition of 'except ... as ...' syntax to parser module.
+
+Extension Modules
+-----------------
+
+- Issue #7673: Fix security vulnerability (CVE-2010-2089) in the audioop module,
+ ensure that the input string length is a multiple of the frame size.
+
+- Issue #9075: In the ssl module, remove the setting of a ``debug`` flag
+ on an OpenSSL structure.
+
+
+What's New in Python 2.7 release candidate 2?
+=============================================
+
+*Release date: 2010-06-20*
+
+Core and Builtins
+-----------------
+
+- Issue #9058: Remove assertions about INT_MAX in UnicodeDecodeError.
+
+- Issue #8202: Previous change to ``sys.argv[0]`` handling for -m command line
+ option reverted due to unintended side effects on handling of ``sys.path``.
+ See tracker issue for details.
+
+- Issue #8941: decoding big endian UTF-32 data in UCS-2 builds could crash
+ the interpreter with characters outside the Basic Multilingual Plane
+ (higher than 0x10000).
+
+- In the unicode/str.format(), raise a ValueError when indexes to arguments are
+ too large.
+
+Build
+-----
+
+- Issue #8854: Fix finding Visual Studio 2008 on Windows x64.
+
+Library
+-------
+
+- Issue #6589: cleanup asyncore.socket_map in case smtpd.SMTPServer constructor
+ raises an exception.
+
+- Issue #8959: fix regression caused by using unmodified libffi
+ library on Windows. ctypes does now again check the stack before
+ and after calling foreign functions.
+
+- Issue #8720: fix regression caused by fix for #4050 by making getsourcefile
+ smart enough to find source files in the linecache.
+
+- Issue #8986: math.erfc was incorrectly raising OverflowError for
+ values between -27.3 and -30.0 on some platforms.
+
+- Issue #8924: logging: Improved error handling for Unicode in exception text.
+
+- Issue #8948: cleanup functions and class / module setups and teardowns are
+ now honored in unittest debug methods.
+
+Documentation
+-------------
+
+- Issues #8909: Added the size of the bitmap used in the installer created by
+ distutils' bdist_wininst. Patch by Anatoly Techtonik.
+
+Misc
+----
+
+- Issue #8362: Add maintainers.rst: list of module maintainers
+
+
+What's New in Python 2.7 Release Candidate 1?
+=============================================
+
+*Release date: 2010-06-05*
+
+Core and Builtins
+-----------------
+
+- Issue #8271: during the decoding of an invalid UTF-8 byte sequence, only the
+ start byte and the continuation byte(s) are now considered invalid, instead
+ of the number of bytes specified by the start byte.
+ E.g.: '\xf1\x80AB'.decode('utf-8', 'replace') now returns u'\ufffdAB' and
+ replaces with U+FFFD only the start byte ('\xf1') and the continuation byte
+ ('\x80') even if '\xf1' is the start byte of a 4-bytes sequence.
+ Previous versions returned a single u'\ufffd'.
+
+- Issue #8627: Remove bogus "Overriding __cmp__ blocks inheritance of
+ __hash__ in 3.x" warning. Also fix "XXX undetected error" that
+ arises from the "Overriding __eq__ blocks inheritance ..." warning
+ when turned into an exception: in this case the exception simply
+ gets ignored.
+
+- Issue #8748: Fix two issues with comparisons between complex and integer
+ objects. (1) The comparison could incorrectly return True in some cases
+ (2**53+1 == complex(2**53) == 2**53), breaking transivity of equality.
+ (2) The comparison raised an OverflowError for large integers, leading
+ to unpredictable exceptions when combining integers and complex objects
+ in sets or dicts.
+
+- Issue #5211: Implicit coercion for the complex type is now completely
+ removed. (Coercion for arithmetic operations was already removed in 2.7
+ alpha 4, but coercion for rich comparisons was accidentally left in.)
+
+- Issue #3798: Write sys.exit() message to sys.stderr to use stderr encoding
+ and error handler, instead of writing to the C stderr file in utf-8
+
+- Issue #7902: When using explicit relative import syntax, don't try implicit
+ relative import semantics.
+
+- Issue #7079: Fix a possible crash when closing a file object while using it
+ from another thread. Patch by Daniel Stutzbach.
+
+- Issue #8868: Fix that ensures that python scripts have access to the
+ Window Server again in a framework build on MacOSX 10.5 or earlier.
+
+C-API
+-----
+
+- Issue #5753: A new C API function, :cfunc:`PySys_SetArgvEx`, allows embedders
+ of the interpreter to set sys.argv without also modifying sys.path. This
+ helps fix `CVE-2008-5983
+ <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5983>`_.
+
+Library
+-------
+
+- Issue #8302: SkipTest in unittest.TestCase.setUpClass or setUpModule is now
+ reported as a skip rather than an error.
+
+- Issue #8351: Excessively large diffs due to
+ unittest.TestCase.assertSequenceEqual are no longer included in failure
+ reports.
+
+- Issue #8899: time.struct_time now has class and atribute docstrings.
+
+- Issue #4487: email now accepts as charset aliases all codec aliases
+ accepted by the codecs module.
+
+- Issue #6470: Drop UNC prefix in FixTk.
+
+- Issue #5610: feedparser no longer eats extra characters at the end of
+ a body part if the body part ends with a \r\n.
+
+- Issue #8833: tarfile created hard link entries with a size field != 0 by
+ mistake.
+
+- Issue #1368247: set_charset (and therefore MIMEText) now automatically
+ encodes a unicode _payload to the output_charset.
+
+- Issue #7150: Raise OverflowError if the result of adding or subtracting
+ timedelta from date or datetime falls outside of the MINYEAR:MAXYEAR range.
+
+- Issue #6662: Fix parsing of malformatted charref (&#bad;), patch written by
+ Fredrik Håård
+
+- Issue #8016: Add the CP858 codec.
+
+- Issue #3924: Ignore cookies with invalid "version" field in cookielib.
+
+- Issue #6268: Fix seek() method of codecs.open(), don't read or write the BOM
+ twice after seek(0). Fix also reset() method of codecs, UTF-16, UTF-32 and
+ StreamWriter classes.
+
+- Issue #5640: Fix Shift-JIS incremental encoder for error handlers different
+ than 'strict'.
+
+- Issue #8782: Add a trailing newline in linecache.updatecache to the last line
+ of files without one.
+
+- Issue #8729: Return NotImplemented from ``collections.Mapping.__eq__()`` when
+ comparing to a non-mapping.
+
+- Issue #8759: Fix user paths in sysconfig for posix and os2 schemes.
+
+- Issue #1285086: Speed up ``urllib.quote()`` and urllib.unquote for simple
+ cases.
+
+- Issue #8688: Distutils now recalculates MANIFEST every time.
+
+- Issue #5099: The ``__del__()`` method of ``subprocess.Popen`` (and the methods
+ it calls) referenced global objects, causing errors to pop up during
+ interpreter shutdown.
+
+Extension Modules
+-----------------
+
+- Issue #7384: If the system readline library is linked against ncurses,
+ the curses module must be linked against ncurses as well. Otherwise it
+ is not safe to load both the readline and curses modules in an application.
+
+- Issue #2810: Fix cases where the Windows registry API returns
+ ERROR_MORE_DATA, requiring a re-try in order to get the complete result.
+
+- Issue #8674: Fixed a number of incorrect or undefined-behaviour-inducing
+ overflow checks in the ``audioop`` module.
+
+Tests
+-----
+
+- Issue #8889: test_support.transient_internet rewritten so that the new
+ checks also work on FreeBSD, which lacks EAI_NODATA.
+
+- Issue #8835: test_support.transient_internet() catches gaierror(EAI_NONAME)
+ and gaierror(EAI_NODATA)
+
+- Issue #7449: Skip test_socketserver if threading support is disabled
+
+- On darwin, ``test_site`` assumed that a framework build was being used,
+ leading to a failure where four directories were expected for site-packages
+ instead of two in a non-framework build.
+
+Build
+-----
+
+- Display installer warning that Windows 2000 won't be supported in future
+ releases.
+
+- Issues #1759169, #8864: Drop _XOPEN_SOURCE on Solaris, define it for
+ multiprocessing only.
+
+Tools/Demos
+-----------
+
+- Issue #5464: Implement plural forms in msgfmt.py.
+
+
+What's New in Python 2.7 beta 2?
+================================
+
+*Release date: 2010-05-08*
+
+Core and Builtins
+-----------------
+
+- Run Clang 2.7's static analyzer for ``Objects/`` and ``Python/``.
+
+- Issue #1533: Fix inconsistency in range function argument processing: any
+ non-float non-integer argument is now converted to an integer (if possible)
+ using its __int__ method. Previously, only small arguments were treated this
+ way; larger arguments (those whose __int__ was outside the range of a C long)
+ would produce a TypeError.
+
+- Issue #8202: ``sys.argv[0]`` is now set to '-m' instead of '-c' when searching
+ for the module file to be executed with the -m command line option.
+
+- Issue #7319: When -Q is used, do not silence DeprecationWarning.
+
+- Issue #7332: Remove the 16KB stack-based buffer in
+ ``PyMarshal_ReadLastObjectFromFile``, which doesn't bring any noticeable
+ benefit compared to the dynamic memory allocation fallback. Patch by
+ Charles-François Natali.
+
+- Issue #8417: Raise an OverflowError when an integer larger than sys.maxsize is
+ passed to bytearray.
+
+- Issue #7072: ``isspace(0xa0)`` is true on Mac OS X.
+
+- Issue #8404: Fix set operations on dictionary views.
+
+- Issue #8084: PEP 370 now conforms to system conventions for framework builds
+ on MacOS X. That is, ``python setup.py install --user`` will install into
+ ``~/Library/Python/2.7`` instead of ``~/.local``.
+
+Library
+-------
+
+- Issue #8681: Make the zlib module's error messages more informative when the
+ zlib itself doesn't give any detailed explanation.
+
+- Issue #8571: Fix an internal error when compressing or decompressing a chunk
+ larger than 1GB with the zlib module's compressor and decompressor objects.
+
+- Issue #8573: asyncore ``_strerror()`` function might throw ValueError.
+
+- Issue #8483: asyncore.dispatcher's __getattr__ method produced confusing error
+ messages when accessing undefined class attributes because of the cheap
+ inheritance with the underlying socket object. The cheap inheritance has been
+ deprecated.
+
+- Issue #4265: ``shutil.copyfile()`` was leaking file descriptors when disk
+ fills. Patch by Tres Seaver.
+
+- Issue #7755: Use an unencumbered audio file for tests.
+
+- Issue #8621: ``uuid.uuid4()`` returned the same sequence of values in the
+ parent and any children created using ``os.fork`` on Mac OS X 10.6.
+
+- Issue #8313: ``traceback.format_exception_only()`` encodes unicode message to
+ ASCII with backslashreplace error handler if ``str(value)`` failed.
+
+- Issue #8567: Fix precedence of signals in Decimal module: when a Decimal
+ operation raises multiple signals and more than one of those signals is
+ trapped, the specification determines the order in which the signals should be
+ handled. In many cases this order wasn't being followed, leading to the wrong
+ Python exception being raised.
+
+- Issue #7865: The close() method of :mod:`io` objects should not swallow
+ exceptions raised by the implicit flush(). Also ensure that calling close()
+ several times is supported. Patch by Pascal Chambon.
+
+- Issue #8576: logging updated to remove usage of find_unused_port().
+
+- Issue #4687: Fix accuracy of garbage collection runtimes displayed with
+ gc.DEBUG_STATS.
+
+- Issue #8354: The siginterrupt setting is now preserved for all signals, not
+ just SIGCHLD.
+
+- Issue #7192: ``webbrowser.get("firefox")`` now works on Mac OS X, as does
+ ``webbrowser.get("safari")``.
+
+- Issue #8577: ``distutils.sysconfig.get_python_inc()`` now makes a difference
+ between the build dir and the source dir when looking for "python.h" or
+ "Include".
+
+- Issue #8464: tarfile no longer creates files with execute permissions set when
+ mode="w|" is used.
+
+- Issue #7834: Fix connect() of Bluetooth L2CAP sockets with recent versions of
+ the Linux kernel. Patch by Yaniv Aknin.
+
+- Issue #6312: Fix http HEAD request when the transfer encoding is chunked. It
+ should correctly return an empty response now.
+
+- Issue #7490: To facilitate sharing of doctests between 2.x and 3.x test
+ suites, the ``IGNORE_EXCEPTION_DETAIL`` directive now also ignores the module
+ location of the raised exception. Based on initial patch by Lennart Regebro.
+
+- Issue #8086: In :func:`ssl.DER_cert_to_PEM_cert()`, fix missing newline before
+ the certificate footer. Patch by Kyle VanderBeek.
+
+- Issue #8546: Reject None given as the buffering argument to ``_pyio.open()``.
+
+- Issue #8549: Fix compiling the _ssl extension under AIX. Patch by Sridhar
+ Ratnakumar.
+
+- Issue #6656: Fix locale.format_string to handle escaped percents and mappings.
+
+- Issue #2302: Fix a race condition in SocketServer.BaseServer.shutdown, where
+ the method could block indefinitely if called just before the event loop
+ started running. This also fixes the occasional freezes witnessed in
+ test_httpservers.
+
+- Issue #5103: SSL handshake would ignore the socket timeout and block
+ indefinitely if the other end didn't respond.
+
+- The do_handshake() method of SSL objects now adjusts the blocking mode of the
+ SSL structure if necessary (as other methods already do).
+
+- Issue #7507: Quote "!" in pipes.quote(); it is special to some shells.
+
+- Issue #5238: Calling makefile() on an SSL object would prevent the underlying
+ socket from being closed until all objects get truely destroyed.
+
+- Issue #7943: Fix circular reference created when instantiating an SSL socket.
+ Initial patch by Péter Szabó.
+
+- Issue #8451: Syslog module now uses basename(sys.argv[0]) instead of the
+ string "python" as the *ident*. openlog() arguments are all optional and
+ keywords.
+
+- Issue #8108: Fix the unwrap() method of SSL objects when the socket has a
+ non-infinite timeout. Also make that method friendlier with applications
+ wanting to continue using the socket in clear-text mode, by disabling
+ OpenSSL's internal readahead. Thanks to Darryl Miles for guidance.
+
+- Issue #8484: Load all ciphers and digest algorithms when initializing the _ssl
+ extension, such that verification of some SSL certificates doesn't fail
+ because of an "unknown algorithm".
+
+- Issue #8437: Fix test_gdb failures, patch written by Dave Malcolm
+
+- Issue #4814: The timeout parameter is now applied also for connections
+ resulting from PORT/EPRT commands.
+
+- Issue #8463: Add missing reference to bztar in shutil's documentation.
+
+- Issue #8438: Remove reference to the missing "surrogateescape" encoding error
+ handler from the new IO library.
+
+- Issue #3817: ftplib.FTP.abort() method now considers 225 a valid response code
+ as stated in RFC-959 at chapter 5.4.
+
+- Issue #8279: Fix test_gdb failures.
+
+- Issue #8322: Add a *ciphers* argument to SSL sockets, so as to change the
+ available cipher list. Helps fix test_ssl with OpenSSL 1.0.0.
+
+- Issue #2987: RFC 2732 support for urlparse (IPv6 addresses). Patch by Tony
+ Locke and Hans Ulrich Niedermann.
+
+- Issue #7585: difflib context and unified diffs now place a tab between
+ filename and date, conforming to the 'standards' they were originally designed
+ to follow. This improves compatibility with patch tools.
+
+- Issue #7472: Fixed typo in email.encoders module; messages using ISO-2022
+ character sets will now consistently use a Content-Transfer-Encoding of 7bit
+ rather than sometimes being marked as 8bit.
+
+- Issue #8330: Fix expected output in test_gdb.
+
+- Issue #8374: Update the internal alias table in the :mod:`locale` module to
+ cover recent locale changes and additions.
+
+Extension Modules
+-----------------
+
+- Issue #8644: Improved accuracy of ``timedelta.total_seconds()``.
+
+- Use Clang 2.7's static analyzer to find places to clean up some code.
+
+- Build the ossaudio extension on GNU/kFreeBSD.
+
+- On Windows, ctypes does no longer check the stack before and after calling a
+ foreign function. This allows to use the unmodified libffi library.
+
+Tests
+-----
+
+- Issue #8672: Add a zlib test ensuring that an incomplete stream can be handled
+ by a decompressor object without errors (it returns incomplete uncompressed
+ data).
+
+- Issue #8490: asyncore now has a more solid test suite which actually tests its
+ API.
- Issue #8576: Remove use of find_unused_port() in test_smtplib and
test_multiprocessing. Patch by Paul Moore.
projects / python / commitdiff