Core and Builtins
-----------------
-Library
--------
+- 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 #11662: Make urllib and urllib2 ignore redirections if the
+ scheme is not HTTP, HTTPS or FTP (CVE-2011-1521).
+
+- Issue #10451: memoryview objects could allow to mutate a readable buffer.
+ Initial patch by Ross Lagerwall.
-What's New in Python 2.6.6 rc 2?
-================================
-
-*Release date: 2010-08-16*
+- Issue #10892: Don't segfault when trying to delete __abstractmethods__ from a
+ class.
-Library
--------
+- 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 #9600: Don't use relative import for _multiprocessing on Windows.
+- Issue #11004: Repaired edge case in deque.count().
-- Issue #8688: Revert regression introduced in 2.6.6rc1 (making Distutils
- recalculate MANIFEST every time).
+- Issue #8278: On Windows and with a NTFS filesystem, os.stat() and os.utime()
+ can now handle dates after 2038.
-- Issue #5798: Handle select.poll flag oddities properly on OS X.
- This fixes test_asynchat and test_smtplib failures on OS X.
+- 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 #9543: Fix regression in socket.py introduced in Python 2.6.6 rc 1
- in r83624.
+- Issue #10674: Remove unused 'dictmaker' rule from grammar.
-Extension Modules
------------------
+- 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 #7567: Don't call `setupterm' twice.
+- Issue #11386: bytearray.pop() now throws IndexError when the bytearray is
+ empty, instead of OverflowError.
-Tests
------
+Library
+-------
-- Issue #9568: Fix test_urllib2_localnet on OS X 10.3.
+- Issue #11256: Fix inspect.getcallargs on functions that take only keyword
+ arguments.
-- Issue #9145: Fix test_coercion failure in refleak runs.
+- Issue #11696: Fix ID generation in msilib.
-- Issue #8433: Fix test_curses failure caused by newer versions of
- ncurses returning ERR from getmouse() when there are no mouse
- events available.
+- 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.
-What's New in Python 2.6.6 rc 1?
-================================
+- Issue #7639: Fix short file name generation in bdist_msi.
-*Release date: 2010-08-03*
+- Issue #11666: let help() display named tuple attributes and methods
+ that start with a leading underscore.
-Core and Builtins
------------------
+- Issue #11673: Fix multiprocessing Array and RawArray constructors to accept a
+ size of type 'long', rather than only accepting 'int'.
-- Issue #6213: Implement getstate() and setstate() methods of utf-8-sig and
- utf-16 incremental encoders.
+- Issue #10042: Fixed the total_ordering decorator to handle cross-type
+ comparisons that could lead to infinite recursion.
-- 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 #10979: unittest stdout buffering now works with class and module
+ setup and teardown.
-- Issue #9058: Remove assertions about INT_MAX in UnicodeDecodeError.
+- 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 #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 #11500: Fixed a bug in the os x proxy bypass code for fully qualified
+ IP addresses in the proxy exception list.
-- 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 #11131: Fix sign of zero in plus and minus operations when
+ the context rounding mode is ROUND_FLOOR.
-- Issue #4108: In urllib.robotparser, if there are multiple 'User-agent: *'
- entries, consider the first one.
+- Issue #5622: Fix curses.wrapper to raise correct exception if curses
+ initialization fails.
-- Issue #9354: Provide getsockopt() in asyncore's file_wrapper.
+- 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.
-- In the unicode/str.format(), raise a ValueError when indexes to arguments are
- too large.
+- 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 #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 #11265: asyncore now correctly handles EPIPE, EBADF and EAGAIN errors
+ on accept(), send() and recv().
-- Issue #7902: When using explicit relative import syntax, don't try
- implicit relative import semantics.
+- Issue #11326: Add the missing connect_ex() implementation for SSL sockets,
+ and make it work for non-blocking connects.
-- Issue #7079: Fix a possible crash when closing a file object while using
- it from another thread. Patch by Daniel Stutzbach.
+- Issue #10956: Buffered I/O classes retry reading or writing after a signal
+ has arrived and the handler returned successfully.
-- 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 #10680: Fix mutually exclusive arguments for argument groups in
+ argparse.
-- Issue #8417: Raise an OverflowError when an integer larger than sys.maxsize
- is passed to bytearray.
+- 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 #8329: Don't return the same lists from select.select when no fds are
- changed.
+- Issue #10360: In WeakSet, do not raise TypeErrors when testing for
+ membership of non-weakrefable objects.
-- Raise a TypeError when trying to delete a T_STRING_INPLACE struct member.
+- Issue #10549: Fix pydoc traceback when text-documenting certain classes.
-- Issue #1583863: An unicode subclass can now override the __unicode__ method.
+- Issue #940286: pydoc.Helper.help() ignores input/output init parameters.
-- Issue #7507: Quote "!" in pipes.quote(); it is special to some shells.
+- Issue #11171: Fix detection of config/Makefile when --prefix !=
+ --exec-prefix, which caused Python to not start.
-- Issue #7544: Preallocate thread memory before creating the thread to avoid
- a fatal error in low memory condition.
+- Issue #11116: any error during addition of a message to a mailbox now causes
+ a rollback, instead of leaving the mailbox partially modified.
-- Issue #7820: The parser tokenizer restores all bytes in the right if
- the BOM check fails.
+- Issue #8275: Fix passing of callback arguments with ctypes under Win64.
+ Patch by Stan Mihai.
-- Issue #7072: isspace(0xa0) is true on Mac OS X
+- 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.
-C-API
------
+- 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 #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>`_.
+- Issue #11052: Correct IDLE menu accelerators on Mac OS X for Save
+ commands.
-Library
--------
+- Issue #10949: Improved robustness of rotating file handlers.
-- Issue #8447: Make distutils.sysconfig follow symlinks in the path to
- the interpreter executable. This fixes a failure of test_httpservers
- on OS X.
+- Issue #10955: Fix a potential crash when trying to mmap() a file past its
+ length. Initial patch by Ross Lagerwall.
-- Issue #7092: Fix the DeprecationWarnings emitted by the standard library
- when using the -3 flag. Patch by Florent Xicluna.
+- Issue #10898: Allow compiling the posix module when the C library defines
+ a symbol named FSTAT.
-- Issue #7395: Fix tracebacks in pstats interactive browser.
+- Issue #6075: IDLE on Mac OS X now works with both Carbon AquaTk and
+ Cocoa AquaTk.
-- Issue #1713: Fix os.path.ismount(), which returned true for symbolic links
- across devices.
+- 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 #8826: Properly load old-style "expires" attribute in http.cookies.
+- Issue #10875: Update Regular Expression HOWTO; patch by 'SilentGhost'.
-- Issue #1690103: Fix initial namespace for code run with trace.main().
+- 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 #5294: Fix the behavior of pdb's "continue" command when called
- in the top-level debugged frame.
+- Issue #10869: Fixed bug where ast.increment_lineno modified the root
+ node twice.
-- Issue #5727: Restore the ability to use readline when calling into pdb
- in doctests.
+- Issue #7858: Raise an error properly when os.utime() fails under Windows
+ on an existing file.
-- 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 #3839: wsgiref should not override a Content-Length header set by
+ the application. Initial patch by Clovis Fabricio.
-- Issue #8048: Prevent doctests from failing when sys.displayhook has
- been reassigned.
+- 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 #8015: In pdb, do not crash when an empty line is entered as
- a breakpoint command.
+- Issue #4662: os.tempnam(), os.tmpfile() and os.tmpnam() now raise a py3k
+ DeprecationWarning.
-- Issue #7909: Do not touch paths with the special prefixes ``\\.\``
- or ``\\?\`` in ntpath.normpath().
+- Subclasses of collections.OrderedDict now work correctly with __missing__.
-- Issue #5146: Handle UID THREAD command correctly in imaplib.
+- 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 #5147: Fix the header generated for cookie files written by
- http.cookiejar.MozillaCookieJar.
+- Issue #10738: Fix webbrowser.Opera.raise_opts
-- Issue #8198: In pydoc, output all help text to the correct stream
- when sys.stdout is reassigned.
+- Issue #9824: SimpleCookie now encodes , and ; in values to cater to how
+ browsers actually parse cookies.
-- Issue #1019882: Fix IndexError when loading certain hotshot stats.
+- Issue #1379416: eliminated a source of accidental unicode promotion in
+ email.header.Header.encode.
-- Issue #8471: In doctest, properly reset the output stream to an empty
- string when Unicode was previously output.
+- 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 #8397: Raise an error when attempting to mix iteration and regular
- reads on a BZ2File object, rather than returning incorrect results.
+- Issue #10750: The ``raw`` attribute of buffered IO objects is now read-only.
-- 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 #10242: unittest.TestCase.assertItemsEqual makes too many assumptions
+ about input.
-- Issue #7066: archive_util.make_archive now restores the cwd if an error is
- raised. Initial patch by Ezio Melotti.
+- Issue #10611: SystemExit should not cause a unittest test run to exit.
-- 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 #6791: Limit header line length (to 65535 bytes) in http.client,
+ to avoid denial of services from the other party.
-- Issue #3704: cookielib was not properly handling URLs with a / in the
- parameters.
+- Issue #10404: Use ctl-button-1 on OSX for the context menu in Idle.
-- 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 #9907: Fix tab handling on OSX when using editline by calling
+ rl_initialize first, then setting our custom defaults, then reading .editrc.
-- Issue #7895: platform.mac_ver() no longer crashes after calling os.fork()
+- Issue #4188: Avoid creating dummy thread objects when logging operations
+ from the threading module (with the internal verbose flag activated).
-- 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 #9721: Fix the behavior of urljoin when the relative url starts with a
+ ';' character. Patch by Wes Chow.
-- Issue #1555570: email no longer inserts extra blank lines when a \r\n
- combo crosses an 8192 byte boundary.
+- Issue #10714: Limit length of incoming request in http.server to 65536 bytes
+ for security reasons. Initial patch by Ross Lagerwall.
-- Issue #9164: Ensure sysconfig handles dupblice archs while building on OSX
+- Issue #9558: Fix distutils.command.build_ext with VS 8.0.
-- Issue #7646: The fnmatch pattern cache no longer grows without bound.
+- Issue #10695: passing the port as a string value to telnetlib no longer
+ causes debug mode to fail.
-- 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 #10107: Warn about unsaved files in IDLE on OSX.
-- 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 #10406: Enable Rstrip IDLE extension on OSX (just like on other
+ platforms).
-- Issue #9130: Fix validation of relative imports in parser module.
+- 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 #9128: Fix validation of class decorators in parser module.
+- Issue #10497: Fix incorrect use of gettext in argparse.
-- 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 #10464: netrc now correctly handles lines with embedded '#' characters.
-- Issue #6589: cleanup asyncore.socket_map in case smtpd.SMTPServer constructor
- raises an exception.
+- 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 #9125: Add recognition of 'except ... as ...' syntax to parser module.
+- Issue #9509: argparse now properly handles IOErrors raised by
+ argparse.FileType.
-- Issue #9085: email package version number bumped to its correct
- value of 4.0.2 (same as it was in 2.5).
+- Issue #9348: Raise an early error if argparse nargs and metavar don't match.
-- Issue #9075: In the ssl module, remove the setting of a ``debug`` flag
- on an OpenSSL structure.
+- Issue #8982: Improve the documentation for the argparse Namespace object.
-- 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 #9343: Document that argparse parent parsers must be configured before
+ their children.
-- Issue #8924: logging: Improved error handling for Unicode in exception text.
+- Issue #9026: Fix order of argparse sub-commands in help messages.
-- Fix codecs.escape_encode to return the correct consumed size.
+Extension Modules
+-----------------
-- Issue #6470: Drop UNC prefix in FixTk.
+- Issue #1838: Prevent segfault in ctypes, when _as_parameter_ on a class is set
+ to an instance of the class.
-- Issue #8833: tarfile created hard link entries with a size field != 0 by
- mistake.
+- Issue #678250: Make mmap flush a noop on ACCESS_READ and ACCESS_COPY.
-- Issue #1368247: set_charset (and therefore MIMEText) now automatically
- encodes a unicode _payload to the output_charset.
+Build
+-----
-- Issue #7150: Raise OverflowError if the result of adding or subtracting
- timedelta from date or datetime falls outside of the MINYEAR:MAXYEAR range.
+- Issue #11411: Fix 'make DESTDIR=' with a relative destination.
-- Issue #6662: Fix parsing of malformatted charref (&#bad;), patch written by
- Fredrik Håård
+- Issue #10709: Add updated AIX notes in Misc/README.AIX.
-- 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 #11184: Fix large-file support on AIX.
-- Issue #3924: Ignore cookies with invalid "version" field in cookielib.
+- Issue #941346: Fix broken shared library build on AIX.
-- 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 #11268: Prevent Mac OS X Installer failure if Documentation
+ package had previously been installed.
-- Issue #5640: Fix Shift-JIS incremental encoder for error handlers different
- than strict
+- Issue #11079: The /Applications/Python x.x folder created by the Mac
+ OS X installers now includes a link to the installed documentation.
-- Issue #8782: Add a trailing newline in linecache.updatecache to the last line
- of files without one.
+- Issue #11054: Allow Mac OS X installer builds to again work on 10.5 with
+ the system-provided Python.
-- Issue #8729: Return NotImplemented from collections.Mapping.__eq__ when
- comparing to a non-mapping.
+- 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).
-- Issue #5918: Fix a crash in the parser module.
+- Don't run pgen twice when using make -j.
-- Issue #8688: Distutils now recalculates MANIFEST everytime.
+- 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 #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 #10475: Don't hardcode compilers for LDSHARED/LDCXXSHARED on NetBSD
+ and DragonFly BSD. Patch by Nicolas Joly.
-- Issue #5099: subprocess.Popen.__del__ no longer references global objects,
- leading to issues during interpreter shutdown.
+- 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 #8681: Make the zlib module's error messages more informative when
- the zlib itself doesn't give any detailed explanation.
+- Issue #1099: Fix the build on MacOSX when building a framework with pydebug
+ using GCC 4.0.
-- Issue #8674: Fixed a number of incorrect or undefined-behaviour-inducing
- overflow checks in the audioop module.
+Tests
+-----
-- 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 #11490: test_subprocess:test_leaking_fds_on_error no longer gives a
+ false positive if the last directory in the path is inaccessible.
-- Issue #8573: asyncore _strerror() function might throw ValueError.
+- Issue #10822: Fix test_posix:test_getgroups failure under Solaris. Patch
+ by Ross Lagerwall.
-- 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.
+- 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 #4265: shutil.copyfile() was leaking file descriptors when disk fills.
- Patch by Tres Seaver.
+- Issue #775964: test_grp now skips YP/NIS entries instead of failing when
+ encountering them.
-- 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.
+- Issue #7110: regrtest now sends test failure reports and single-failure
+ tracebacks to stderr rather than stdout.
-- 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.
+What's New in Python 2.7.1?
+===========================
-- 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.
+*Release date: 2010-11-27*
-- Issue #8581: logging: removed errors raised when closing handlers twice.
+Library
+-------
-- Issue #4687: Fix accuracy of garbage collection runtimes displayed with
- gc.DEBUG_STATS.
+- Issue #2236: distutils' mkpath ignored the mode parameter.
-- Issue #8354: The siginterrupt setting is now preserved for all signals,
- not just SIGCHLD.
+- Fix typo in one sdist option (medata-check).
-- 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 #10323: itertools.islice() now consumes the minimum number of
+ inputs before stopping. Formerly, the final state of the underlying
+ iterator was undefined.
-- Issue #8464: tarfile no longer creates files with execute permissions set
- when mode="w|" is used.
+- Issue #10565: The collections.Iterator ABC now checks for both
+ ``__iter__`` and ``next``.
-- Issue #7834: Fix connect() of Bluetooth L2CAP sockets with recent versions
- of the Linux kernel. Patch by Yaniv Aknin.
+- Issue #10092: Properly reset locale in calendar.Locale*Calendar classes.
-- Issue #6312: Fixed http HEAD request when the transfer encoding is chunked.
- It should correctly return an empty response now.
+- Issue #10459: Update CJK character names to Unicode 5.2.
-- Issue #8086: In :func:`ssl.DER_cert_to_PEM_cert()`, fix missing newline
- before the certificate footer. Patch by Kyle VanderBeek.
+- Issue #6098: Don't claim DOM level 3 conformance in minidom.
-- Issue #8549: Fix compiling the _ssl extension under AIX. Patch by
- Sridhar Ratnakumar.
+- Issue #10561: In pdb, clear the breakpoints by the breakpoint number.
-- 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 #5762: Fix AttributeError raised by ``xml.dom.minidom`` when an empty
+ XML namespace attribute is encountered.
-- Issue #5103: SSL handshake would ignore the socket timeout and block
- indefinitely if the other end didn't respond.
+- 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.
-- The do_handshake() method of SSL objects now adjusts the blocking mode of
- the SSL structure if necessary (as other methods already do).
+- Issue #4493: urllib2 adds '/' in front of path components which does not
+ start with '/. Common behavior exhibited by browsers and other clients.
-- Issue #5238: Calling makefile() on an SSL object would prevent the
- underlying socket from being closed until all objects get truely destroyed.
+- Issue #6378: idle.bat now runs with the appropriate Python version rather than
+ the system default. Patch by Sridhar Ratnakumar.
-- Issue #7943: Fix circular reference created when instantiating an SSL
- socket. Initial patch by Péter Szabó.
+- Issue #10407: Fix one NameError in distutils.
-- 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 #10198: fix duplicate header written to wave files when writeframes()
+ is called without data.
-- 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 #10467: Fix BytesIO.readinto() after seeking into a position after the
+ end of the file.
-- Issue #4814: timeout parameter is now applied also for connections resulting
- from PORT/EPRT commands.
+- Issue #5111: IPv6 Host in the Header is wrapped inside [ ]. Patch by Chandru.
-- Issue #3817: ftplib.FTP.abort() method now considers 225 a valid response
- code as stated in RFC-959 at chapter 5.4.
+Build
+-----
-- Issue #5277: Fix quote counting when parsing RFC 2231 encoded parameters.
+- Backport r83399 to allow test_distutils to pass on installed versions.
-- Issue #8179: Fix macpath.realpath() on a non-existing path.
+- Issue #1303434: Generate ZIP file containing all PDBs.
-- Issue #8310: Allow dis to examine new style classes.
+Tests
+-----
-- Issue #7667: Fix doctest failures with non-ASCII paths.
+- Issue #9424: Replace deprecated assert* methods in the Python test suite.
-- Issue #7624: Fix isinstance(foo(), collections.Callable) for old-style
- classes.
+Documentation
+-------------
-- 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 #10299: List the built-in functions in a table in functions.rst.
-- 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 #6544: fix a reference leak in the kqueue implementation's error
- handling.
+What's New in Python 2.7.1 release candidate 1?
+===============================================
-- 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
+*Release date: 2010-11-13*
-- Issue #6906: Tk should not set Unicode environment variables on Windows.
+Core and Builtins
+-----------------
-- Issue #1054943: Fix unicodedata.normalize('NFC', text) for the Public Review
- Issue #29
+- 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 #7494: fix a crash in _lsprof (cProfile) after clearing the profiler,
- reset also the pointer to the current pointer context.
+- Issue #10125: Don't segfault when the iterator passed to
+ ``file.writelines()`` closes the file.
-- Issue #4961: Inconsistent/wrong result of askyesno function in tkMessageBox
- with Tcl/Tk-8.5.
+- Issue #10186: Fix the SyntaxError caret when the offset is equal to the
+ length of the offending line.
-- Issue #7356: ctypes.util: Make parsing of ldconfig output independent of
- the locale.
+- Issue #9997: Don't let the name "top" have special significance in scope
+ resolution.
-Extension Modules
------------------
+- Issue #9862: Compensate for broken PIPE_BUF in AIX by hard coding
+ its value as the default 512 when compiling on AIX.
-- Fix memory leak in ssl._ssl._test_decode_cert.
+- Issue #9675: CObject use is marked as a Py3k warning, not a deprecation
+ warning.
-- Issue #9422: Fix memory leak when re-initializing a struct.Struct object.
+- 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 #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 #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.
- os.getgroups() can now return more than 16 groups on MacOSX.
+- Issue #10006: type.__abstractmethods__ now raises an AttributeError.
-- 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 #9797: pystate.c wrongly assumed that zero couldn't be a valid
+ thread-local storage key.
-- 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 #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 #2810: Fix cases where the Windows registry API returns
- ERROR_MORE_DATA, requiring a re-try in order to get the complete result.
+- Issue #9737: Fix a crash when trying to delete a slice or an item from
+ a memoryview object.
-Build
------
+- Restore GIL in nis_cat in case of error.
-- Issue #8854: Fix finding Visual Studio 2008 on Windows x64.
+- Issue #9688: __basicsize__ and __itemsize__ must be accessed as Py_ssize_t.
-- Issue #3928: os.mknod() now available in Solaris, also.
+- Issue #8530: Prevent stringlib fastsearch from reading beyond the front
+ of an array.
-- Issue #8175: --with-universal-archs=all works correctly on OSX 10.5
+- Issue #83755: Implicit set-to-frozenset conversion was not thread-safe.
-- Issue #6716: Quote -x arguments of compileall in MSI installer.
+- Issue #9416: Fix some issues with complex formatting where the
+ output with no type specifier failed to match the str output:
-- 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.
+ - format(complex(-0.0, 2.0), '-') omitted the real part from the output,
+ - format(complex(0.0, 2.0), '-') included a sign and parentheses.
-Tests
------
+- Issue #7616: Fix copying of overlapping memoryview slices with the Intel
+ compiler.
-- 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.
+Library
+-------
-- 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 #9926: Wrapped TestSuite subclass does not get __call__ executed
-- Issue #8629: Disable some test_ssl tests, since they give different
- results with OpenSSL 1.0.0 and higher.
+- Issue #4471: Properly shutdown socket in IMAP.shutdown(). Patch by
+ Lorenzo M. Catucci.
-- Issue #8576: Remove use of find_unused_port() in test_smtplib and
- test_multiprocessing. Patch by Paul Moore.
+- Issue #10126: Fix distutils' test_build when Python was built with
+ --enable-shared.
-- Issue #7027: regrtest.py keeps a reference to the encodings.ascii module as a
- workaround to #7140 bug
+- Fix typo in one sdist option (medata-check).
-- Issue #3864: Skip three test_signal tests on freebsd6 because they fail
- if any thread was previously started, most likely due to a platform bug.
+- Issue #9199: Fix incorrect use of distutils.cmd.Command.announce.
-- Issue #8193: Fix test_zlib failure with zlib 1.2.4.
+- Issue #1718574: Fix options that were supposed to accept arguments but did
+ not in build_clib.
-Documentation
--------------
+- Issue #9281: Prevent race condition with mkdir in distutils. Patch by
+ Arfrever.
-- Issue #9255: Document that the 'test' package is for internal Python use
- only.
+- Issue #10229: Fix caching error in gettext.
-- Issue #8909: Added the size of the bitmap used in the installer created by
- distutils' bdist_wininst. Patch by Anatoly Techtonik.
+- 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.
-What's New in Python 2.6.5?
-===========================
+- Issue #10038: json.loads() on str should always return unicode (regression
+ from Python 2.6). Patch by Walter Dörwald.
-*Release date: 2010-03-18*
+- 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.
-What's New in Python 2.6.5 rc 2?
-================================
+- Issue #10266: uu.decode didn't close in_file explicitly when it was given
+ as a filename. Patch by Brian Brazil.
-*Release date: 2010-03-09*
+- Issue #10246: uu.encode didn't close file objects explicitly when filenames
+ were given to it. Patch by Brian Brazil.
-Core and Builtins
------------------
+- Issue #10253: FileIO leaks a file descriptor when trying to open a file
+ for append that isn't seekable. Patch by Brian Brazil.
-- Issue #8089: a OS X framework build with --with-universal-archs=3-way|intel
- had no way to select a 32-bit executable.
+- Issue #6105: json.dumps now respects OrderedDict's iteration order.
-- Issue #8084: fixes build issues on OSX 10.6 when targetting OSX 10.4.
+- Issue #9295: Fix a crash under Windows when calling close() on a file
+ object with custom buffering from two threads at once.
-Library
--------
+- 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.
-- Reverting the changes made in r78432. Discussed in the tracker issue #7540.
+- Issue #10163: Skip unreadable registry keys during mimetypes
+ initialization.
-- Issue #8107: Fixed test_distutils so it doesn't crash when the source
- directory cannot be found.
+- Issue #5117: Fixed root directory related issue on posixpath.relpath() and
+ ntpath.relpath().
-Extension Modules
------------------
+- Issue #9409: Fix the regex to match all kind of filenames, for interactive
+ debugging in doctests.
-- Issue #7670: sqlite3: Fixed crashes when operating on closed connections.
+- 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 #8053: logic was inverted on which platforms to run a test on.
- caused test_thread to fail on Windows.
+- 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.
-What's New in Python 2.6.5 rc 1?
-================================
+- Issue #9437: Fix building C extensions with non-default LDFLAGS.
-*Release date: 2010-03-01*
+- Issue #9759: GzipFile now raises ValueError when an operation is attempted
+ after the file is closed. Patch by Jeffrey Finkelstein.
-Core and Builtins
------------------
+- Issue #9042: Fix interaction of custom translation classes and caching in
+ gettext.
-- Issue #7309: Fix unchecked attribute access when converting
- UnicodeEncodeError, UnicodeDecodeError, and UnicodeTranslateError to
- strings.
+- Issue #9065: tarfile no longer uses "root" as the default for the uname and
+ gname field.
-- Issue #7649: "u'%c' % char" now behaves like "u'%s' % char" and raises a
- UnicodeDecodeError if 'char' is a byte string that can't be decoded using
- the default encoding.
+- Issue #1050268: parseaddr now correctly quotes double quote and backslash
+ characters that appear inside quoted strings in email addresses.
-- Issue #5677: Explicitly forbid write operations on read-only file objects,
- and read operations on write-only file objects. On Windows, the system C
- library would return a bogus result; on Solaris, it was possible to crash
- the interpreter. Patch by Stefan Krah.
+- Issue #10004: quoprimime no longer generates a traceback when confronted
+ with invalid characters after '=' in a Q-encoded word.
-- Issue #4978: Passing keyword arguments as unicode strings is now allowed.
+- 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 #7819: Check sys.call_tracing() arguments types.
+- Issue #9947: logging: Fixed locking bug in stopListening.
-- Issue #7788: Fix an interpreter crash produced by deleting a list
- slice with very large step value.
+- Issue #9945: logging: Fixed locking bugs in addHandler/removeHandler.
-- Issue #7561: Operations on empty bytearrays (such as `int(bytearray())`)
- could crash in many places because of the PyByteArray_AS_STRING() macro
- returning NULL. The macro now returns a statically allocated empty
- string instead.
+- Issue #9936: Fixed executable lines' search in the trace module.
-- Issue #7604: Deleting an unset slotted attribute did not raise an
- AttributeError.
+- Issue #9928: Properly initialize the types exported by the bz2 module.
-- Issue #7413: Passing '\0' as the separator to datetime.datetime.isoformat()
- used to drop the time part of the result.
+- Issue #9854: The default read() implementation in io.RawIOBase now
+ handles non-blocking readinto() returning None correctly.
-- Issue #6108: unicode(exception) and str(exception) should return the same
- message when only __str__ (and not __unicode__) is overridden in the
- subclass.
+- 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 #7491: Metaclass's __cmp__ method was ignored.
+- Issue #9826: OrderedDict.__repr__ can now handle self-referential
+ values: d['x'] = d.
-- Add Py3k warnings for parameter names in parenthesis.
+- Issue #767645: Set os.path.supports_unicode_filenames to True on Mac OS X.
-- Issue #7362: Give a proper error message for def f((x)=3): pass.
+- Issue #9837: The read() method of ZipExtFile objects (as returned by
+ ZipFile.open()) could return more bytes than requested.
-- Issue #7085: Fix crash when importing some extensions in a thread
- on MacOSX 10.6.
+- 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 #7070: Fix round bug for large odd integer arguments.
+- 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 #7078: Set struct.__doc__ from _struct.__doc__.
+- 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 #1722344: threading._shutdown() is now called in Py_Finalize(), which
- fixes the problem of some exceptions being thrown at shutdown when the
- interpreter is killed. Patch by Adam Olsen.
+- 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 #7084: Fix a (very unlikely) crash when printing a list from one
- thread, and mutating it from another one. Patch by Scott Dial.
+- Issue #1100562: Fix deep-copying of objects derived from the list and
+ dict types. Patch by Michele Orrù and Björn Lindqvist.
-- Issue #1747858: Fix lchown & fchown to work with large uid's and gid's on
- 64-bit platforms.
+- 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.
-Library
--------
+- 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 #7250: Fix info leak of os.environ across multi-run uses of
- wsgiref.handlers.CGIHandler.
+- Issue #8797: urllib2 does a retry for Basic Authentication failure instead of
+ falling into recursion.
-- Issue #1729305: Fix doctest to handle encode error with "backslashreplace".
+- Issue #1194222: email.utils.parsedate now returns RFC2822 compliant four
+ character years even if the message contains RFC822 two character years.
-- Issue #691291: codecs.open() should not convert end of lines on reading and
- writing.
+- Issue #8750: Fixed MutableSet's methods to correctly handle
+ reflexive operations, namely x -= x and x ^= x.
-- Issue #7975: correct regression in dict methods supported by bsddb.dbshelve.
+- Issue #9129: smtpd.py is vulnerable to DoS attacks deriving from missing
+ error handling when accepting a new connection.
-- Issue #7959: ctypes callback functions are now registered correctly
- with the cycle garbage collector.
+- Issue #658749: asyncore's connect() method now correctly interprets winsock
+ errors.
-- Issue #6243: curses.getkey() can segfault when used with ungetch.
- Fix by Trundle and Jerry Chen.
+- Issue #9501: Fixed logging regressions in cleanup code.
-- Issue #7597: curses.use_env() can now be called before initscr().
- Noted by Kan-Ru Chen.
+- Issue #9214: Set operations on KeysView or ItemsView in the collections
+ module now correctly return a set. (Patch by Eli Bendersky.)
-- Issue #7970: email.Generator.flatten now correctly flattens message/rfc822
- messages parsed by email.Parser.HeaderParser.
+- Issue #9617: Signals received during a low-level write operation aren't
+ ignored by the buffered IO layer anymore.
-- Issue #3426: ``os.path.abspath`` now returns unicode when its arg is unicode.
+- Issue #2521: Use weakrefs on for caching in the abc module, so that classes
+ are not held onto after they are deleted elsewhere.
-- Issue #7835: shelve should no longer produce mysterious warnings during
- interpreter shutdown.
+- 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 #4772: Raise a ValueError when an unknown Bluetooth protocol is
- specified, rather than fall through to AF_PACKET (in the `socket` module).
- Also, raise ValueError rather than TypeError when an unknown TIPC address
- type is specified. Patch by Brian Curtin.
+- 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 #6939: Fix file I/O objects in the `io` module to keep the original
- file position when calling `truncate()`. It would previously change the
- file position to the given argument, which goes against the tradition of
- ftruncate() and other truncation APIs. Patch by Pascal Chambon.
+- 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 #7773: Fix an UnboundLocalError in platform.linux_distribution() when
- the release file is empty.
+- 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 #7748: Since unicode values are supported for some metadata options
- in Distutils, the DistributionMetadata get_* methods will now return an utf-8
- encoded string for them. This ensure that the upload and register commands
- send the right values to PyPI without any error.
+- Issue #9551: Don't raise TypeError when setting the value to None for
+ SafeConfigParser instances constructed with allow_no_value == True.
-- Issue #1670765: Prevent email.generator.Generator from re-wrapping
- headers in multipart/signed MIME parts, which fixes one of the sources of
- invalid modifications to such parts by Generator.
+- Issue #6915: Under Windows, os.listdir() didn't release the Global
+ Interpreter Lock around all system calls. Original patch by Ryan Kelly.
-- Issue #7701: Fix crash in binascii.b2a_uu() in debug mode when given a
- 1-byte argument. Patch by Victor Stinner.
+- 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 #3299: Fix possible crash in the _sre module when given bad
- argument values in debug mode. Patch by Victor Stinner.
+- Issue #6231: Fix xml.etree.ElementInclude to include the tail of the
+ current node.
-- Issue #5827: Make sure that normpath preserves unicode. Initial patch
- by Matt Giuca.
+- Issue #6869: Fix a refcount problem in the _ctypes extension.
-- Issue #5372: Drop the reuse of .o files in Distutils' ccompiler (since
- Extension extra options may change the output without changing the .c
- file). Initial patch by Collin Winter.
+- Issue5504 - ctypes should now work with systems where mmap can't be
+ PROT_WRITE and PROT_EXEC.
-- Issue #7617: Make sure distutils.unixccompiler.UnixCCompiler recognizes
- gcc when it has a fully qualified configuration prefix. Initial patch
- by Arfrever.
+- 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 #7071: byte-compilation in Distutils is now done with respect to
- sys.dont_write_bytecode.
+- Issue #2944: asyncore doesn't handle connection refused correctly.
-- Issue #7092: Remove py3k warning when importing cPickle. 2to3 handles
- renaming of `cPickle` to `pickle`. The warning was annoying since there's
- no alternative to cPickle if you care about performance. Patch by Florent
- Xicluna.
+- Issue #3196: email header decoding is now forgiving if an RFC2047
+ encoded word encoded in base64 is lacking padding.
-- Issue #7455: Fix possible crash in cPickle on invalid input. Patch by
- Victor Stinner.
+- 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 #6511: ZipFile now raises BadZipfile (instead of an IOError) when
- opening an empty or very small file.
+- Issue #9354: Provide getsockopt() in asyncore's file_wrapper.
-- Issue #7552: Removed line feed in the base64 Authorization header in
- the Distutils upload command to avoid an error when PyPI reads it.
- This occurs on long passwords. Initial patch by JP St. Pierre.
+- Issue #9428: Fix running scripts with the profile/cProfile modules from
+ the command line.
-- Issue #7231: urllib2 cannot handle https with proxy requiring auth. Patch by
- Tatsuhiro Tsujikawa.
+- Issue #7781: Fix restricting stats by entry counts in the pstats
+ interactive browser.
-- Issue #7348: StringIO.StringIO.readline(-1) now acts as if it got no argument
- like other file objects.
+- Issue #9209: Do not crash in the pstats interactive browser on invalid
+ regular expressions.
-- Issue #5949: fixed IMAP4_SSL hang when the IMAP server response is
- missing proper end-of-line termination.
+- Issue #7372: Fix pstats regression when stripping paths from profile
+ data generated with the profile module.
-- Fix variations of extending deques: d.extend(d) d.extendleft(d) d+=d
+- 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 everytime.
+
+- 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.
+
+- Issue #7449: Fix many tests to support Python compiled without thread support.
+ Patches written by Jerry Seutter.
+
+- Issue #8108: test_ftplib's non-blocking SSL server now has proper handling of
+ SSL shutdowns.
+
+Build
+-----
+
+- Issue #8625: Turn off optimization in ``--with-pydebug`` builds with gcc.
+ (Optimization was unintentionally turned on in gcc --with-pydebug builds in
+ 2.7 beta1 as a result of the issue #1628484 fix, combined with autoconf's
+ strange choice of default CFLAGS produced by AC_PROG_CC for gcc.)
+
+- Issue #8509: Fix quoting in help strings and code snippets in configure.in.
+
+- Issue #3646: It is now easily possible to install a Python framework into your
+ home directory on Mac OS X, see Mac/README for more information.
+
+- Issue #8510: Update to autoconf 2.65.
+
+Misc
+----
+
+- Update the Vim syntax highlight file.
+
+
+What's New in Python 2.7 beta 1?
+================================
+
+*Release date: 2010-04-10*
+
+Core and Builtins
+-----------------
+
+- Issue #7301: Add environment variable $PYTHONWARNINGS.
+
+- Issue #8329: Don't return the same lists from select.select when no fds are
+ changed.
+
+- Issue #8259: ``1L << (2**31)`` no longer produces an 'outrageous shift error'
+ on 64-bit machines. The shift count for either left or right shift is
+ permitted to be up to sys.maxsize.
+
+- Ensure that tokenization of identifiers is not affected by locale.
+
+- Issue #1222585: Added LDCXXSHARED for C++ support. Patch by Arfrever.
+
+- Raise a TypeError when trying to delete a T_STRING_INPLACE struct member.
+
+- Issue #7994: Issue a PendingDeprecationWarning if object.__format__ is called
+ with a non-empty format string. This is an effort to future-proof user
+ code. If a derived class does not currently implement __format__ but later
+ adds its own __format__, it would most likely break user code that had
+ supplied a format string. This will be changed to a DeprecationWarning in
+ Python 3.3 and it will be an error in Python 3.4.
+
+- Issue #8268: Old-style classes (not just instances) now support weak
+ references.
+
+- Issue #8211: Save/restore CFLAGS around AC_PROG_CC in configure.in, in case it
+ is set.
+
+- Issue #1583863: An unicode subclass can now override the __unicode__ method
+
+- Issue #6474: Make error message from passing an inadequate number of keyword
+ arguments to a function correct.
+
+- Issue #8164: Don't allow lambda functions to have a docstring.
+
+- Issue #3137: Don't ignore errors at startup, especially a keyboard interrupt
+ (SIGINT). If an error occurs while importing the site module, the error is
+ printed and Python exits. Initialize the GIL before importing the site
+ module.
+
+- Code objects now support weak references.
+
+Library
+-------
+
+- Issue #5277: Fix quote counting when parsing RFC 2231 encoded parameters.
+
+- Issue #8321: Give access to OpenSSL version numbers from the `ssl` module,
+ using the new attributes `ssl.OPENSSL_VERSION`, `ssl.OPENSSL_VERSION_INFO` and
+ `ssl.OPENSSL_VERSION_NUMBER`.
+
+- Issue #8310: Allow dis to examine new style classes.
+
+- Issue #8257: The Decimal construct now accepts a float instance directly,
+ converting that float to a Decimal of equal value:
+
+ >>> Decimal(1.1)
+ Decimal('1.100000000000000088817841970012523233890533447265625')
+
+- collections.Counter() now supports a subtract() method.
+
+- The functools module now has a total_ordering() class decorator to simplify
+ the specification of rich comparisons.
+
+- The functools module also adds cmp_to_key() as a tool to transition old-style
+ comparison functions to new-style key-functions.
+
+- Issue #8294: The Fraction constructor now accepts Decimal and float instances
+ directly.
+
+- Issue #7279: Comparisons involving a Decimal signaling NaN now signal
+ InvalidOperation instead of returning False. (Comparisons involving a quiet
+ NaN are unchanged.) Also, Decimal quiet NaNs are now hashable; Decimal
+ signaling NaNs remain unhashable.
+
+- Issue #2531: Comparison operations between floats and Decimal instances now
+ return a result based on the numeric values of the operands; previously they
+ returned an arbitrary result based on the relative ordering of id(float) and
+ id(Decimal).
+
+- Issue #8233: When run as a script, py_compile.py optionally takes a single
+ argument `-` which tells it to read files to compile from stdin. Each line is
+ read on demand and the named file is compiled immediately. (Original patch by
+ Piotr Ożarowski).
+
+- Issue #3135: Add ``inspect.getcallargs()``, which binds arguments to a
+ function like a normal call.
+
+- Backwards incompatible change: Unicode codepoints line tabulation (0x0B) and
+ form feed (0x0C) are now considered linebreaks, as specified in Unicode
+ Standard Annex #14. See issue #7643. http://www.unicode.org/reports/tr14/
+
+- Comparisons using one of <, <=, >, >= between a complex instance and a
+ Fractions instance now raise TypeError instead of returning True/False. This
+ makes Fraction <=> complex comparisons consistent with int <=> complex, float
+ <=> complex, and complex <=> complex comparisons.
+
+- Addition of ``WeakSet`` to the ``weakref`` module.
+
+- logging: Added LOG_FTP to SysLogHandler and updated documentation.
+
+- Issue #8205: Remove the "Modules" directory from sys.path when Python is
+ running from the build directory (POSIX only).
+
+- Issue #7667: Fix doctest failures with non-ASCII paths.
+
+- 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 #7703: ctypes supports both buffer() and memoryview(). The former is
+ deprecated.
+
+- Issue #7860: platform.uname now reports the correct 'machine' type when Python
+ is running in WOW64 mode on 64 bit Windows.
+
+- logging: Added getChild utility method to Logger and added isEnabledFor method
+ to LoggerAdapter.
+
+- Issue #8201: logging: Handle situation of non-ASCII and Unicode logger names
+ existing at the same time, causing a Unicode error when configuration code
+ attempted to sort the existing loggers.
+
+- Issue #8200: logging: Handle errors when multiprocessing is not fully loaded
+ when logging occurs.
+
+- 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 #8179: Fix macpath.realpath() on a non-existing path.
+
+- Issue #8024: Update the Unicode database to 5.2.
+
+- Issue #8104: socket.recv_into() and socket.recvfrom_into() now support writing
+ into objects supporting the new buffer API, for example bytearrays or
+ memoryviews.
+
+- Issue #4961: Inconsistent/wrong result of askyesno function in tkMessageBox
+ with Tcl/Tk-8.5.
+
+- Issue #8140: Extend compileall to compile single files. Add -i option.
+
+- Issue #7356: ctypes.util: Make parsing of ldconfig output independent of the
+ locale.
+
+- 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 #8117: logging: Improved algorithm for computing initial rollover time
+ for ``TimedRotatingFileHandler`` by using the modification time of an existing
+ log file to compute the next rollover time. If the log file does not exist,
+ the current time is used as the basis for the computation.
+
+- Issue #6472: The ``xml.etree`` package is updated to ElementTree 1.3. The
+ cElementTree module is updated too.
+
+- Issue #7880: Fix sysconfig when the python executable is a symbolic link.
+
+- Issue #7624: Fix ``isinstance(foo(), collections.Callable)`` for old-style
+ classes.
+
+- Issue #7143: email: ``get_payload()`` used to strip any trailing newline from
+ a base64 transfer-encoded payload *after* decoding it; it no longer does.
+ This is a behavior change, so email's minor version number is now bumped, to
+ version 4.0.2, for the 2.7 release.
+
+- Issue #8235: _socket: Add the constant ``SO_SETFIB``. SO_SETFIB is
+ a socket option available on FreeBSD 7.1 and newer.
+
+- Issue #8038: unittest.TestCase.assertNotRegexpMatches
+
+- Addition of -b command line option to unittest for buffering stdout / stderr
+ during test runs.
+
+- Issue #1220212: Added os.kill support for Windows, including support for
+ sending CTRL+C and CTRL+BREAK events to console subprocesses.
+
+Extension Modules
+-----------------
+
+- Issue #8314: Fix unsigned long long bug in libffi on Sparc v8.
+
+- Issue #1039, #8154: Fix os.execlp() crash with missing 2nd argument.
+
+- Issue #8156: bsddb module updated to version 4.8.4.
+ http://www.jcea.es/programacion/pybsddb.htm#bsddb3-4.8.4. This update drops
+ support for Berkeley DB 4.0, and adds support for 4.8.
+
+- Issue #3928: os.mknod() now available in Solaris, also.
+
+- Issue #8142: Update libffi to the 3.0.9 release.
+
+- Issue #8300: When passing a non-integer argument to struct.pack with any
+ integer format code, struct.pack first attempts to convert the non-integer
+ using its __index__ method. If that method is non-existent or raises
+ TypeError it goes on to try the __int__ method, as described below.
+
+- Issue #1530559: When passing a non-integer argument to struct.pack with *any*
+ integer format code (one of 'bBhHiIlLqQ'), struct.pack attempts to use the
+ argument's __int__ method to convert to an integer before packing. It also
+ produces a DeprecationWarning in this case. (In Python 2.6, the behaviour was
+ inconsistent: __int__ was used for some integer codes but not for others, and
+ the set of integer codes for which it was used differed between native packing
+ and standard packing.)
+
+- Issue #7347: _winreg: Add CreateKeyEx and DeleteKeyEx, as well as fix a bug in
+ the return value of QueryReflectionKey.
+
+Tools/Demos
+-----------
+
+- Issue #7993: Add a test of IO packet processing bandwidth to ccbench. It
+ measures the number of UDP packets processed per second depending on the
+ number of background CPU-bound Python threads.
+
+- python-config now supports multiple options on the same command line.
+
+Build
+-----
+
+- Issue #8032: For gdb7, a python-gdb.py file is added to the build, allowing to
+ use advanced gdb features when debugging Python.
+
+- 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 #6716: Quote -x arguments of compileall in MSI installer.
+
+- Issue #7705: Fix linking on FreeBSD.
+
+- Make sure that the FreeBSD build of the included libffi uses the proper
+ assembly file.
+
+C-API
+-----
+
+- Issue #8276: PyEval_CallObject() is now only available in macro form. The
+ function declaration, which was kept for backwards compatibility reasons, is
+ now removed (the macro was introduced in 1997!).
+
+- Issue #7992: A replacement PyCObject API, PyCapsule, has been backported from
+ Python 3.1. All existing Python CObjects in the main distribution have been
+ converted to capsules. To address backwards-compatibility concerns,
+ PyCObject_AsVoidPtr() was changed to understand capsules.
+
+Tests
+-----
+
+- Issue #3864: Skip three test_signal tests on freebsd6 because they fail if any
+ thread was previously started, most likely due to a platform bug.
+
+- Issue #8348: Fix test ftp url in test_urllib2net.
+
+- Issue #8204: Fix test_ttk notebook test by forcing focus.
+
+- Issue #8344: Fix test_ttk bug on FreeBSD.
+
+- Issue #8193: Fix test_zlib failure with zlib 1.2.4.
+
+- Issue #8248: Add some tests for the bool type. Patch by Gregory Nofi.
+
+- Issue #8263: Now regrtest.py will report a failure if it receives a
+ KeyboardInterrupt (SIGINT).
+
+- Issue #8180 and #8207: Fix test_pep277 on OS X and add more tests for special
+ Unicode normalization cases.
+
+- Issue #7783: test.test_support.open_urlresource invalidates the outdated files
+ from the local cache.
+
+
+What's New in Python 2.7 alpha 4?
+=================================
+
+*Release date: 2010-03-06*
+
+Core and Builtins
+-----------------
+
+- Issue #7544: Preallocate thread memory before creating the thread to avoid a
+ fatal error in low memory condition.
+
+- Issue #7820: The parser tokenizer restores all bytes in the right if the BOM
+ check fails.
+
+- Issue #7309: Fix unchecked attribute access when converting
+ UnicodeEncodeError, UnicodeDecodeError, and UnicodeTranslateError to strings.
+
+- Issue #7649: "u'%c' % char" now behaves like "u'%s' % char" and raises a
+ UnicodeDecodeError if 'char' is a byte string that can't be decoded using the
+ default encoding.
+
+- Issue #6902: Fix problem with built-in types format incorrectly with 0
+ padding.
+
+- Issue #2560: Remove an unnecessary 'for' loop from ``my_fgets()`` in
+ Parser/myreadline.c.
+
+- Issue #7988: Fix default alignment to be right aligned for
+ ``complex.__format__``. Now it matches other numeric types.
+
+- Issue #5211: The complex type no longer uses implicit coercion in mixed-type
+ binary arithmetic operations.
+
+Library
+-------
+
+- Issue #7904: Changes to urllib.parse.urlsplit to handle schemes as defined by
+ RFC3986. Anything before :// is considered a scheme and is followed by an
+ authority (or netloc) and by '/' led path, which is optional.
+
+- Issue #1555570: email no longer inserts extra blank lines when a \r\n
+ combo crosses an 8192 byte boundary.
+
+- Issue #6906: Tk should not set Unicode environment variables on Windows.
+
+- Issue #1054943: Fix ``unicodedata.normalize('NFC', text)`` for the Public
+ Review Issue #29 (http://unicode.org/review/pr-29.html).
+
+- Issue #7494: Fix a crash in ``_lsprof`` (cProfile) after clearing the profiler,
+ reset also the pointer to the current pointer context.
+
+- Issue #7232: Add support for the context manager protocol to the
+ ``tarfile.TarFile`` class.
+
+- Issue #7250: Fix info leak of os.environ across multi-run uses of
+ ``wsgiref.handlers.CGIHandler``.
+
+- Issue #1729305: Fix doctest to handle encode error with "backslashreplace".
+
+- Issue #691291: ``codecs.open()`` should not convert end of lines on reading
+ and writing.
+
+- Issue #7975: Correct regression in dict methods supported by bsddb.dbshelve.
+
+- Issue #7959: ctypes callback functions are now registered correctly with the
+ cycle garbage collector.
+
+- Issue #7970: ``email.Generator.flatten`` now correctly flattens
+ message/rfc822 messages parsed by ``email.Parser.HeaderParser``.
+
+- Issue #3426: ``os.path.abspath`` now returns unicode when its arg is unicode.
+
+- Issue #7633: In the decimal module, ``Context`` class methods (with the
+ exception of canonical and is_canonical) now accept instances of int and long
+ wherever a Decimal instance is accepted, and implicitly convert that argument
+ to Decimal. Previously only some arguments were converted.
+
+- Issue #6003: Add an argument to ``zipfile.Zipfile.writestr`` to specify the
+ compression type.
+
+- Issue #7893: ``unittest.TextTestResult`` is made public and a ``resultclass``
+ argument added to the TextTestRunner constructor allowing a different result
+ class to be used without having to subclass.
+
+- Issue #7588: ``unittest.TextTestResult.getDescription`` now includes the test
+ name in failure reports even if the test has a docstring.
+
+- Issue #5801: Remove spurious empty lines in wsgiref.
+
+- Issue #1537721: Add a ``writeheader()`` method to ``csv.DictWriter``.
+
+- Issue #7427: Improve the representation of httplib.BadStatusLine exceptions.
+
+- Issue #7481: When a ``threading.Thread`` failed to start it would leave the
+ instance stuck in initial state and present in ``threading.enumerate()``.
+
+- Issue #1068268: The subprocess module now handles EINTR in internal
+ ``os.waitpid()`` and ``os.read()`` system calls where appropriate.
+
+- Issue #6729: Add ``ctypes.c_ssize_t`` to represent ssize_t.
+
+- Issue #6247: The argparse module has been added to the standard library.
+
+Extension Modules
+-----------------
+
+- The sqlite3 module was updated to pysqlite 2.6.0. This fixes several obscure
+ bugs and allows loading SQLite extensions from shared libraries.
+
+- Issue #7808: Fix reference leaks in _bsddb and related tests.
+
+- Issue #6544: Fix a reference leak in the kqueue implementation's error
+ handling.
+
+- Stop providing crtassem.h symbols when compiling with Visual Studio 2010, as
+ msvcr100.dll is not a platform assembly anymore.
+
+- Issue #7242: On Solaris 9 and earlier calling ``os.fork()`` from within a
+ thread could raise an incorrect RuntimeError about not holding the import
+ lock. The import lock is now reinitialized after fork.
+
+- Issue #7999: ``os.setreuid()`` and ``os.setregid()`` would refuse to accept a
+ -1 parameter on some platforms such as OS X.
+
+Tests
+-----
+
+- Issue #7849: The utility ``test.test_support.check_warnings()`` verifies if
+ warnings are effectively raised. A new utility ``check_py3k_warnings()`` is
+ available.
+
+- The four path modules (genericpath, macpath, ntpath, posixpath) share a
+ common TestCase for some tests: test_genericpath.CommonTest.
+
+- Print platform information when running the whole test suite, or using the
+ ``--verbose`` flag.
+
+- Issue #767675: Enable test_pep277 on POSIX platforms with Unicode-friendly
+ filesystem encoding.
+
+- Issue #6292: For the moment at least, the test suite runs cleanly if python
+ is run with the -OO flag. Tests requiring docstrings are skipped.
+
+- Issue #7712: test_support gained a new ``temp_cwd`` context manager which is
+ now also used by regrtest to run all the tests in a temporary directory. The
+ original CWD is saved in ``test.test_support.SAVEDCWD``. Thanks to Florent
+ Xicluna who helped with the patch.
+
+Build
+-----
+
+- Issue #3920, #7903: Define _BSD_SOURCE on OpenBSD 4.4 through 4.9.
+
+
+What's New in Python 2.7 alpha 3?
+=================================
+
+*Release date: 2010-02-06*
+
+Core and Builtins
+-----------------
+
+- Issue #5677: Explicitly forbid write operations on read-only file objects,
+ and read operations on write-only file objects. On Windows, the system C
+ library would return a bogus result; on Solaris, it was possible to crash the
+ interpreter. Patch by Stefan Krah.
+
+- Issue #7853: Normalize exceptions before they are passed to a context
+ manager's ``__exit__()`` method.
+
+- Issue #7385: Fix a crash in ``PyMemoryView_FromObject()`` when
+ ``PyObject_GetBuffer()`` fails. Patch by Florent Xicluna.
+
+- Issue #7819: Check ``sys.call_tracing()`` arguments types.
+
+- Issue #7788: Fix an interpreter crash produced by deleting a list slice with
+ very large step value.
+
+- Issue #7766: Change ``sys.getwindowsversion()`` return value to a named tuple
+ and add the additional members returned in an OSVERSIONINFOEX structure. The
+ new members are service_pack_major, service_pack_minor, suite_mask, and
+ product_type.
+
+- Issue #7561: Operations on empty bytearrays (such as ``int(bytearray())``)
+ could crash in many places because of the ``PyByteArray_AS_STRING()`` macro
+ returning NULL. The macro now returns a statically allocated empty string
+ instead.
+
+- Issue #7622: Improve the split(), rsplit(), splitlines() and replace()
+ methods of bytes, bytearray and unicode objects by using a common
+ implementation based on stringlib's fast search. Patch by Florent Xicluna.
+
+- Issue #7632: Fix various str -> float conversion bugs present in 2.7 alpha 2,
+ including:
+
+ (1) a serious 'wrong output' bug that could occur for long (> 40 digit) input
+ strings,
+ (2) a crash in dtoa.c that occurred in debug builds when parsing certain long
+ numeric strings corresponding to subnormal values,
+ (3) a memory leak for some values large enough to cause overflow, and
+ (4) a number of flaws that could lead to incorrectly rounded results.
+
+- Issue #7319, #7770: Silence ``DeprecationWarning`` by default when the -3
+ option is not used.
+
+- Issue #2335: Backport set literals syntax from Python 3.x.
+
+- Issue #2333: Backport set and dict comprehensions syntax from Python 3.x.
+
+- Issue #1967: Backport dictionary views from Python 3.x.
+
+Library
+-------
+
+- Issue #9137: Fix issue in MutableMapping.update, which incorrectly
+ treated keyword arguments called 'self' or 'other' specially.
+
+- Issue #7835: shelve should no longer produce mysterious warnings during
+ interpreter shutdown.
+
+- Issue #2746: Don't escape ampersands and angle brackets ("&", "<", ">") in
+ XML processing instructions and comments. These raw characters are allowed
+ by the XML specification, and are necessary when outputting e.g. PHP code in
+ a processing instruction. Patch by Neil Muller.
+
+- Issue #7869: logging: Improved diagnostic for format-time errors.
+
+- Issue #7868: logging: Added loggerClass attribute to Manager.
+
+- Issue #7851: logging: Clarification on logging configuration files.
+
+- Issue #4772: Raise a ValueError when an unknown Bluetooth protocol is
+ specified, rather than fall through to AF_PACKET (in the ``socket`` module).
+ Also, raise ValueError rather than TypeError when an unknown TIPC address
+ type is specified. Patch by Brian Curtin.
+
+- logging: Implemented PEP 391.
+
+- Issue #6939: Fix file I/O objects in the `io` module to keep the original
+ file position when calling `truncate()`. It would previously change the file
+ position to the given argument, which goes against the tradition of
+ ftruncate() and other truncation APIs. Patch by Pascal Chambon.
+
+- Issue #7610: Reworked implementation of the internal ``zipfile.ZipExtFile``
+ class used to represent files stored inside an archive. The new
+ implementation is significantly faster and can be wrapped in a
+ ``io.BufferedReader`` object for more speedups. It also solves an issue
+ where interleaved calls to ``read()`` and ``readline()`` give wrong results.
+ Patch by Nir Aides.
+
+- Issue #7792: Registering non-classes to ABCs raised an obscure error.
+
+- Removed the deprecated functions ``verify()`` and ``vereq()`` from
+ Lib/test/test_support.py.
+
+- Issue #7773: Fix an UnboundLocalError in ``platform.linux_distribution()``
+ when the release file is empty.
+
+- Issue #7748: Since unicode values are supported for some metadata options in
+ Distutils, the DistributionMetadata get_* methods will now return an utf-8
+ encoded string for them. This ensures that the upload and register commands
+ send the correct values to PyPI without any error.
+
+- Issue #1670765: Prevent ``email.generator.Generator`` from re-wrapping
+ headers in multipart/signed MIME parts, which fixes one of the sources of
+ invalid modifications to such parts by Generator.
+
+- Issue #7701: Fix crash in ``binascii.b2a_uu()`` in debug mode when given a
+ 1-byte argument. Patch by Victor Stinner.
+
+- Issue #3299: Fix possible crash in the _sre module when given bad argument
+ values in debug mode. Patch by Victor Stinner.
+
+- Issue #7703: Add support for the new buffer API to functions of the binascii
+ module. Backported from py3k by Florent Xicluna, with some additional tests.
+
+- Issue #2846: Add support for gzip.GzipFile reading zero-padded files. Patch
+ by Brian Curtin.
+
+- Issue #5827: Make sure that normpath preserves unicode. Initial patch by
+ Matt Giuca.
+
+- Issue #5372: Drop the reuse of .o files in Distutils' ccompiler (since
+ Extension extra options may change the output without changing the .c file).
+ Initial patch by Collin Winter.
+
+Extension Modules
+-----------------
+
+- Expat: Fix DoS via XML document with malformed UTF-8 sequences
+ (CVE_2009_3560).
-- Issue #1923: Fixed the removal of meaningful spaces when PKG-INFO is
- generated in Distutils. Patch by Stephen Emslie.
+Build
+-----
-- Issue #4120: Drop reference to CRT from manifest when building extensions
- with msvc9compiler.
+- Issue #7632: When Py_USING_MEMORY_DEBUGGER is defined, disable the private
+ memory allocation scheme in dtoa.c and use PyMem_Malloc and PyMem_Free
+ instead. Also disable caching of powers of 5.
-- Issue #7410: deepcopy of itertools.count() erroneously reset the count.
+- Issue #7658: Ensure that the new pythonw executable works on OSX 10.4
-- Issue #7403: logging: Fixed possible race condition in lock creation.
+- Issue #7714: Use ``gcc -dumpversion`` to detect the version of GCC on
+ MacOSX.
-- Issue #7341: Close the internal file object in the TarFile constructor in
- case of an error.
+- Issue #7661: Allow ctypes to be built from a non-ASCII directory path.
+ Patch by Florent Xicluna.
-- Issue #7328: pydoc no longer corrupts sys.path when run with the '-m' switch
+Tools/Demos
+-----------
-- Issue #7318: multiprocessing now uses a timeout when it fails to establish
- a connection with another process, rather than looping endlessly. The
- default timeout is 20 seconds, which should be amply sufficient for
- local connections.
+- iobench (a file I/O benchmark) and ccbench (a concurrency benchmark) were
+ added to the ``Tools`` directory. They were previously living in the
+ sandbox.
-- Issue #7282: Fix a memory leak when an RLock was used in a thread other
- than those started through `threading.Thread` (for example, using
- `thread.start_new_thread()`.
+Tests
+-----
-- Issue #7264: Fix a possible deadlock when deallocating thread-local objects
- which are part of a reference cycle.
+- issue #7728: test_timeout was changed to use ``test_support.bind_port()``
+ instead of a hard coded port.
-- Issue #7249: Methods of io.BytesIO now allow `long` as well as `int`
- arguments.
+Documentation
+-------------
-- Issue #6665: Fix fnmatch to properly match filenames with newlines in them.
+- Updated "Using Python" documentation to include description of CPython's -J,
+ -U and -X options.
+
+- Updated Python manual page (options -B, -O0, -s, environment variables
+ PYTHONDONTWRITEBYTECODE, PYTHONNOUSERSITE).
+
+
+What's New in Python 2.7 alpha 2?
+=================================
+
+*Release date: 2010-01-09*
+
+Core and Builtins
+-----------------
+
+- The ``__complex__()`` method is now looked up on the class of instances to
+ make it consistent with other special methods.
+
+- Issue #7462: Implement the stringlib fast search algorithm for the `rfind`,
+ `rindex`, `rsplit` and `rpartition` methods. Patch by Florent Xicluna.
+
+- Issue #5080: A number of functions and methods previously produced a
+ DeprecationWarning when passed a float argument where an integer was expected.
+ These functions and methods now raise TypeError instead. The majority of the
+ effects of this change are in the extension modules, but some core functions
+ and methods are affected: notably the 'chr', 'range' and 'xrange' builtins,
+ and many unicode/str methods.
+
+- Issue #7604: Deleting an unset slotted attribute did not raise an
+ AttributeError.
+
+- Issue #7534: Fix handling of IEEE specials (infinities, nans, negative zero)
+ in ** operator. The behaviour now conforms to that described in C99 Annex F.
+
+- Issue #7579: The msvcrt module now has docstrings for all its functions.
+
+- Issue #7413: Passing '\0' as the separator to datetime.datetime.isoformat()
+ used to drop the time part of the result.
+
+- Issue #1811: Improve accuracy and cross-platform consistency for true division
+ of integers: the result of a/b is now correctly rounded for ints a and b (at
+ least on IEEE 754 platforms), and in particular does not depend on the
+ internal representation of a long.
+
+- Issue #6108: ``unicode(exception)`` and ``str(exception)`` should return the
+ same message when only ``__str__()`` (and not ``__unicode__()``) is overridden
+ in the subclass.
+
+- Issue #6834: Replace the implementation for the 'python' and 'pythonw'
+ executables on OSX.
+
+ These executables now work properly with the arch(1) command: ``arch -ppc
+ python`` will start a universal binary version of python in PPC mode (unlike
+ previous releases).
+
+- Issue #1680159: Unicode coercion during an 'in' operation no longer masks the
+ underlying error when the coercion fails for the left hand operand.
+
+- Issue #7491: Metaclass's __cmp__ method was ignored.
+
+- Issue #7466: Segmentation fault when the garbage collector is called in the
+ middle of populating a tuple. Patch by Florent Xicluna.
+
+
+Library
+-------
+
+- Issue #6963: Added "maxtasksperchild" argument to ``multiprocessing.Pool``,
+ allowing for a maximum number of tasks within the pool to be completed by the
+ worker before that worker is terminated, and a new one created to replace it.
+
+- Issue #7617: Make sure distutils.unixccompiler.UnixCCompiler recognizes gcc
+ when it has a fully qualified configuration prefix. Initial patch by
+ Arfrever.
+
+- Issue #7092: Remove py3k warning when importing cPickle. 2to3 handles
+ renaming of `cPickle` to `pickle`. The warning was annoying since there's no
+ alternative to cPickle if you care about performance. Patch by Florent
+ Xicluna.
+
+- Issue #7455: Fix possible crash in cPickle on invalid input. Patch by Victor
+ Stinner.
+
+- Issue #7092: Fix the DeprecationWarnings emitted by the standard library when
+ using the -3 flag. Patch by Florent Xicluna.
+
+- Issue #7471: Improve the performance of GzipFile's buffering mechanism, and
+ make it implement the ``io.BufferedIOBase`` ABC to allow for further speedups
+ by wrapping it in an ``io.BufferedReader``. Patch by Nir Aides.
+
+- Issue #3972: ``httplib.HTTPConnection`` now accepts an optional source_address
+ parameter to allow specifying where your connections come from.
+
+- ``socket.create_connection()`` now accepts an optional source_address
+ parameter.
+
+- Issue #5511: ``zipfile.ZipFile`` can now be used as a context manager.
+ Initial patch by Brian Curtin.
+
+- Distutils now correctly identifies the build architecture as "x86_64" when
+ building on OSX 10.6 without "-arch" flags.
+
+- Issue #7556: Distutils' msvc9compiler now opens the MSVC Manifest file in text
+ mode.
+
+- Issue #7552: Removed line feed in the base64 Authorization header in the
+ Distutils upload command to avoid an error when PyPI reads it. This occurs on
+ long passwords. Initial patch by JP St. Pierre.
+
+- Issue #7231: urllib2 cannot handle https with proxy requiring auth. Patch by
+ Tatsuhiro Tsujikawa.
+
+- Issue #7349: Make methods of file objects in the io module accept None as an
+ argument where file-like objects (ie StringIO and BytesIO) accept them to mean
+ the same as passing no argument.
+
+- Issue #7348: ``StringIO.StringIO.readline(-1)`` now acts as if it got no
+ argument like other file objects.
+
+- Issue #7357: tarfile no longer suppresses fatal extraction errors by default.
+
+- Issue #7470: logging: Fix bug in Unicode encoding fallback.
+
+- Issue #5949: Fixed IMAP4_SSL hang when the IMAP server response is missing
+ proper end-of-line termination.
+
+- Issue #7457: Added a read_pkg_file method to
+ ``distutils.dist.DistributionMetadata``.
+
+- Issue #3745: Undo the 2.7a1 change to have hashlib to reject unicode and non
+ buffer API supporting objects as input. That behavior is for 3.x only.
+
+C-API
+-----
+
+- Issue #7767: New function ``PyLong_AsLongLongAndOverflow()`` added, analogous
+ to ``PyLong_AsLongAndOverflow()``.
+
+- Issue #5080: The argument parsing functions ``PyArg_ParseTuple()``,
+ ``PyArg_ParseTupleAndKeywords()``, ``PyArg_VaParse()``,
+ ``PyArg_VaParseTupleAndKeywords()`` and ``PyArg_Parse()`` no longer accept
+ float arguments for integer format codes (other than 'L'): previously an
+ attempt to pass a float resulted in a DeprecationWarning; now it gives a
+ TypeError. For the 'L' format code (which previously had no warning) there is
+ now a DeprecationWarning.
+
+- Issue #7033: Function ``PyErr_NewExceptionWithDoc()`` added.
+
+Build
+-----
+
+- Issue #6491: Allow --with-dbmliborder to specify that no dbms will be built.
+
+- Issue #6943: Use pkg-config to find the libffi headers when the
+ ``--with-system-ffi`` flag is used.
+
+- Issue #7609: Add a ``--with-system-expat`` option that causes the system's
+ expat library to be used for the pyexpat module instead of the one included
+ with Python.
+
+- Issue #7589: Only build the nis module when the correct header files are
+ found.
+
+- Switch to OpenSSL 0.9.8l and sqlite 3.6.21 on Windows.
+
+- Issue #7541: when using ``python-config`` with a framework install the
+ compiler might use the wrong library.
+
+Tests
+-----
+
+- Issue #7376: Instead of running a self-test (which was failing) when called
+ with no arguments, doctest.py now gives a usage message.
+
+- Issue #7396: Fix regrtest -s, which was broken by the -j enhancement.
+
+- Issue #7498: test_multiprocessing now uses test_support.find_unused_port
+ instead of a hardcoded port number in test_rapid_restart.
+
+
+What's New in Python 2.7 alpha 1
+================================
+
+*Release date: 2009-12-05*
+
+Core and Builtins
+-----------------
+
+- Issue #7419: ``locale.setlocale()`` could crash the interpreter on Windows
+ when called with invalid values.
+
+- Issue #3382: 'F' formatting for float and complex now convert the result to
+ upper case. This only affects 'inf' and 'nan', since 'f' no longer converts
+ to 'g' for large values.
+
+- Remove switch from "%f" formatting to "%g" formatting for floats larger than
+ 1e50 in absolute value.
+
+- Remove restrictions on precision when formatting floats. E.g., "%.120g" %
+ 1e-100 used to raise OverflowError, but now gives the requested 120
+ significant digits instead.
+
+- Add Py3k warnings for parameter names in parentheses.
+
+- Issue #7362: Give a proper error message for ``def f((x)=3): pass``.
+
+- Issue #7085: Fix crash when importing some extensions in a thread on MacOSX
+ 10.6.
+
+- Issue #7117: ``repr(x)`` for a float x returns a result based on the shortest
+ decimal string that's guaranteed to round back to x under correct rounding
+ (with round-half-to-even rounding mode). Previously it gave a string based on
+ rounding x to 17 decimal digits. repr(x) for a complex number behaves
+ similarly. On platforms where the correctly-rounded strtod and dtoa code is
+ not supported (see below), repr is unchanged.
+
+- Issue #7117: On almost all platforms: float-to-string and string-to-float
+ conversions within Python are now correctly rounded. Places these conversions
+ occur include: str for floats and complex numbers; the float and complex
+ constructors; old-style and new-style numeric formatting; serialization and
+ deserialization of floats and complex numbers using marshal, pickle and json;
+ parsing of float and imaginary literals in Python code; Decimal-to-float
+ conversion.
+
+ The conversions use a Python-adapted version of David Gay's well-known dtoa.c,
+ providing correctly-rounded strtod and dtoa C functions. This code is
+ supported on Windows, and on Unix-like platforms using gcc, icc or suncc as
+ the C compiler. There may be a small number of platforms on which correct
+ operation of this code cannot be guaranteed, so the code is not used: notably,
+ this applies to platforms where the C double format is not IEEE 754 binary64,
+ and to platforms on x86 hardware where the x87 FPU is set to 64-bit precision
+ and Python's configure script is unable to determine how to change the FPU
+ precision. On these platforms conversions use the platform strtod and dtoa,
+ as before.
+
+- Issue #7117: Backport round implementation from Python 3.x. ``round()`` now
+ uses the correctly-rounded string <-> float conversions described above (when
+ available), and so produces correctly rounded results that will display nicely
+ under the float repr. There are two related small changes: (1) round now
+ accepts any class with an ``__index__()`` method for its second argument (but
+ no longer accepts floats for the second argument), and (2) an excessively
+ large second integer argument (e.g., ``round(1.234, 10**100)``) no longer
+ raises an exception.
+
+- Issue #1757126: Fix the cyrillic-asian alias for the ptcp154 encoding.
+
+- Fix several issues with ``compile()``. The input can now contain Windows and
+ Mac newlines and is no longer required to end in a newline.
+
+- Remove length limitation when constructing a complex number from a unicode
+ string.
+
+- Issue #7244: ``itertools.izip_longest()`` no longer ignores exceptions raised
+ during the formation of an output tuple.
+
+- Issue #1087418: Boost performance of bitwise operations for longs.
+
+- Issue #1722344: ``threading._shutdown()`` is now called in ``Py_Finalize()``,
+ which fixes the problem of some exceptions being thrown at shutdown when the
+ interpreter is killed. Patch by Adam Olsen.
+
+- Issue #7168: Document ``PyFloat_AsString()`` and ``PyFloat_AsReprString()``,
+ and note that they are unsafe and deprecated.
+
+- Issue #7120: logging: Remove import of multiprocessing which is causing crash
+ in GAE.
+
+- Issue #7140: The ``__dict__`` of a module should not be cleared unless the
+ module is the only object holding a reference to it.
+
+- Issue #1754094: Improve the stack depth calculation in the compiler. There
+ should be no other effect than a small decrease in memory use. Patch by
+ Christopher Tur Lesniewski-Laas.
+
+- Issue #7084: Fix a (very unlikely) crash when printing a list from one thread,
+ and mutating it from another one. Patch by Scott Dial.
+
+- Issue #1571184: The Unicode database contains properties for more characters.
+ The tables for code points representing numeric values, white spaces or line
+ breaks are now generated from the official Unicode Character Database files,
+ and include information from the Unihan.txt file.
+
+- Issue #7050: Fix a SystemError when trying to use unpacking and augmented
+ assignment.
+
+- Issue #5329: Fix ``os.popen*`` regression from 2.5 with commands as a sequence
+ running through the shell. Patch by Jean-Paul Calderone and Jani Hakala.
+
+- Issue #7019: Raise ValueError when unmarshalling bad long data, instead of
+ producing internally inconsistent Python longs.
+
+- Issue #6990: Fix ``threading.local`` subclasses leaving old state around after
+ a reference cycle GC which could be recycled by new locals.
+
+- Issue #6300: unicode.encode, unicode.decode, str.decode, and str.encode now
+ take keyword arguments.
+
+- Issue #6922: Fix an infinite loop when trying to decode an invalid UTF-32
+ stream with a non-raising error handler like "replace" or "ignore".
+
+- Issue #6713: Improve performance of base 10 int -> string and long -> string
+ conversions.
+
+- Issue #1590864: Fix potential deadlock when mixing threads and fork().
+
+- Issue #6844: Do not emit DeprecationWarnings when accessing a "message"
+ attribute on exceptions that was set explicitly.
+
+- Issue #6846: Fix bug where bytearray.pop() returns negative integers.
+
+- ``classmethod()`` no longer checks if its argument is callable.
+
+- Issue #6750: A text file opened with ``io.open()`` could duplicate its output
+ when writing from multiple threads at the same time.
+
+- Issue #6704: Improve the col_offset in AST for "for" statements with a target
+ of tuple unpacking.
+
+- Issue #6707: ``dir()`` on an uninitialized module caused a crash.
+
+- Issue #6540: Fixed crash for ``bytearray.translate()`` with invalid parameters.
+
+- Issue #6573: ``set.union()`` stopped processing inputs if an instance of self
+ occurred in the argument chain.
+
+- Issue #1616979: Added the cp720 (Arabic DOS) encoding.
+
+- Issue #6070: On posix platforms import no longer copies the execute bit from
+ the .py file to the .pyc file if it is set. Patch by Marco N.
+
+- Issue #4618: When unicode arguments are passed to ``print()``, the default
+ separator and end should be unicode also.
+
+- Issue #6119: Fixed an incorrect Py3k warning about order comparisons of
+ built-in functions and methods.
+
+- Issue #6347: Include inttypes.h as well as stdint.h in pyport.h. This fixes a
+ build failure on HP-UX: int32_t and uint32_t are defined in inttypes.h instead
+ of stdint.h on that platform.
+
+- Issue #4856: Remove checks for win NT.
+
+- Issue #2016: Fixed a crash in a corner case where the dictionary of keyword
+ arguments could be modified during the function call setup.
+
+- Removed the ipaddr module.
+
+- Issue #6329: Fixed iteration for memoryview objects (it was being blocked
+ because it wasn't recognized as a sequence).
+
+- Issue #6289: Encoding errors from ``compile()`` were being masked.
+
+- When no module is given in a relative import, the module field of the
+ ImportFrom AST node is now None instead of an empty string.
+
+- Assignment to None using import statements now raises a SyntaxError.
+
+- Issue #4547: When debugging a very large function, it was not always possible
+ to update the lineno attribute of the current frame.
+
+- Issue #5330: C functions called with keyword arguments were not reported by
+ the various profiling modules (profile, cProfile). Patch by Hagen Fürstenau.
+
+- Issue #5982: staticmethod and classmethod now expose the wrapped function with
+ ``__func__``.
+
+- Added support for multiple context managers in the same with-statement.
+ Deprecated ``contextlib.nested()`` which is no longer needed.
+
+- Issue #6101: A new opcode, SETUP_WITH, has been added to speed up the with
+ statement and correctly lookup the __enter__ and __exit__ special methods.
+
+- Issue #5829: complex("1e500") no longer raises OverflowError. This makes it
+ consistent with float("1e500") and interpretation of real and imaginary
+ literals.
+
+- Issue #3527: Removed Py_WIN_WIDE_FILENAMES which is not used any more.
+
+- ``__instancecheck__()`` and ``__subclasscheck__()`` are now completely ignored
+ on classic classes and instances.
+
+- Issue #5994: The marshal module now has docstrings.
+
+- Issue #5981: Fix three minor inf/nan issues in float.fromhex:
+
+ (1) inf and nan strings with trailing whitespace were incorrectly rejected;
+ (2) parsing of strings representing infinities and nans was locale aware; and
+ (3) the interpretation of fromhex('-nan') didn't match that of float('-nan').
+
+- Issue #5920: For ``float.__format__()``, change the behavior with the empty
+ presentation type (that is, not one of 'e', 'f', 'g', or 'n') to be like 'g'
+ but with at least one decimal point and with a default precision
+ of 12. Previously, the behavior the same but with a default precision of 6.
+ This more closely matches ``str()``, and reduces surprises when adding
+ alignment flags to the empty presentation type. This also affects the new
+ complex.__format__ in the same way.
+
+- Issue #5890: In subclasses of 'property' the __doc__ attribute was shadowed by
+ classtype's, even if it was None. property now inserts the __doc__ into the
+ subclass instance __dict__.
+
+- Issue #4426: The UTF-7 decoder was too strict and didn't accept some legal
+ sequences. Patch by Nick Barnes and Victor Stinner.
+
+- Issue #1588: Add complex.__format__. For example, ``format(complex(1, 2./3),
+ '.5')`` now produces a sensible result.
+
+- Issue #5864: Fix empty format code formatting for floats so that it never
+ gives more than the requested number of significant digits.
+
+- Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes new
+ Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h.
+
+- Issue #4971: Fix titlecase for characters that are their own titlecase, but
+ not their own uppercase.
+
+- Issue #5835: Deprecate PyOS_ascii_formatd and replace it with
+ _PyOS_double_to_string or PyOS_double_to_string.
+
+- Issue #5283: Setting __class__ in __del__ caused a segfault.
+
+- Issue #5816: ``complex(repr(z))`` now recovers z exactly, even when z involves
+ nans, infs or negative zeros.
+
+- Implement PEP 378, Format Specifier for Thousands Separator, for floats, ints,
+ and longs.
+
+- Issue #5515: 'n' formatting for ints, longs, and floats handles leading zero
+ formatting poorly.
+
+- Issue #5772: For float.__format__, don't add a trailing ".0" if we're using no
+ type code and we have an exponent.
+
+- Issue #3166: Make long -> float (and int -> float) conversions correctly
+ rounded.
+
+- Issue #5787: ``object.__getattribute__(some_type, "__bases__")`` segfaulted on
+ some built-in types.
+
+- Issue #1869: Fix a couple of minor round() issues. ``round(5e15+1)`` was
+ giving 5e15+2; ``round(-0.0)`` was losing the sign of the zero.
+
+- Issue #5759: float() didn't call __float__ on str subclasses.
+
+- Issue #5704: The "-3" command-line option now implies "-t".
+
+- Issue #2170: Refactored ``xml.dom.minidom.normalize``, increasing both its
+ clarity and its speed.
+
+- Issue #2396: The memoryview object was backported from Python 3.1.
+
+- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
+ when hitting the recursion limit under certain circumstances.
+
+- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
+
+- Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to the end
+ sys.path, for compatibility with the system install of Python.
+
+- Issue #4688: Add a heuristic so that tuples and dicts containing only
+ untrackable objects are not tracked by the garbage collector. This can reduce
+ the size of collections and therefore the garbage collection overhead on
+ long-running programs, depending on their particular use of datatypes.
+
+- Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to improve its
+ performance. Long divisions and remainder operations are now between 50% and
+ 150% faster.
+
+- Issue #4258: Make it possible to use base 2**30 instead of base 2**15 for the
+ internal representation of integers, for performance reasons. Base 2**30 is
+ enabled by default on 64-bit machines. Add --enable-big-digits option to
+ configure, which overrides the default. Add sys.long_info structseq to
+ provide information about the internal format.
+
+- Issue #4034: Fix weird attribute error messages of the traceback object. (As a
+ result traceback.__members__ no longer exists.)
+
+- Issue #4474: PyUnicode_FromWideChar now converts characters outside the BMP to
+ surrogate pairs, on systems with sizeof(wchar_t) == 4 and sizeof(Py_UNICODE)
+ == 2.
+
+- Issue #5237: Allow auto-numbered fields in str.format(). For example: ``'{}
+ {}'.format(1, 2) == '1 2'``.
+
+- Issue #3652: Make the 'line' argument for ``warnings.showwarning()`` a
+ requirement. Means the DeprecationWarning from Python 2.6 can go away.
+
+- Issue #5247: Improve error message when unknown format codes are used when
+ using ``str.format()`` with str, unicode, long, int, and float arguments.
+
+- Running Python with the -3 option now also warns about classic division for
+ ints and longs.
+
+- Issue #5260: Long integers now consume less memory: average saving is 2 bytes
+ per long on a 32-bit system and 6 bytes per long on a 64-bit system.
+
+- Issue #5186: Reduce hash collisions for objects with no __hash__ method by
+ rotating the object pointer by 4 bits to the right.
+
+- Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs: it now
+ forces its argument to double before testing for infinity.
+
+- Issue #4978: Passing keyword arguments as unicode strings is now allowed.
+
+- Issue #1242657: the __len__() and __length_hint__() calls in several tools
+ were suppressing all exceptions. These include list(), filter(), map(),
+ zip(), and bytearray().
+
+- os.ftruncate raises OSErrors instead of IOErrors for consistency with other os
+ functions.
+
+- Issue #4991: Passing invalid file descriptors to io.FileIO now raises an
+ OSError.
+
+- Issue #4807: Port the _winreg module to Windows CE.
+
+- Issue #4935: The overflow checking code in the expandtabs() method common to
+ str, bytes and bytearray could be optimized away by the compiler, letting the
+ interpreter segfault instead of raising an error.
+
+- Issue #3720: Fix a crash when an iterator modifies its class and removes its
+ __next__ method.
+
+- Issue #4893: Use NT threading on CE.
+
+- Issue #4915: Port sysmodule to Windows CE.
+
+- Issue #4074: Change the criteria for doing a full garbage collection (i.e.
+ collecting the oldest generation) so that allocating lots of objects without
+ destroying them does not show quadratic performance. Based on a proposal by
+ Martin von Löwis at
+ http://mail.python.org/pipermail/python-dev/2008-June/080579.html.
-- Issue #1008086: Fixed socket.inet_aton() to always return 4 bytes even on
- LP64 platforms (most 64-bit Linux, bsd, unix systems).
+- Issue #4850: Change COUNT_ALLOCS variables to Py_ssize_t.
-- Issue #7246 & Issue #7208: getpass now properly flushes input before
- reading from stdin so that existing input does not confuse it and
- lead to incorrect entry or an IOError. It also properly flushes it
- afterwards to avoid the terminal echoing the input afterwards on
- OSes such as Solaris.
+- Issue #1180193: When importing a module from a .pyc (or .pyo) file with an
+ existing .py counterpart, override the co_filename attributes of all code
+ objects if the original filename is obsolete (which can happen if the file has
+ been renamed, moved, or if it is accessed through different paths). Patch by
+ Ziga Seilnacht and Jean-Paul Calderone.
-- Issue #7244: itertools.izip_longest() no longer ignores exceptions
- raised during the formation of an output tuple.
+- Issue #4075: Use ``OutputDebugStringW()`` in Py_FatalError.
+
+- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
+ file with `str' filename on Windows.
+
+- Issue #3680: Reference cycles created through a dict, set or deque iterator
+ did not get collected.
+
+- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types where
+ the tp_hash and tp_dict slots are both NULL.
+
+- Issue #4764: With io.open, IOError.filename is set when trying to open a
+ directory on POSIX systems.
+
+- Issue #4764: IOError.filename is set when trying to open a directory on POSIX
+ systems.
+
+- Issue #4759: None is now allowed as the first argument of
+ ``bytearray.translate()``. It was always allowed for ``bytes.translate()``.
+
+- Added test case to ensure attempts to read from a file opened for writing
+ fail.
+
+- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always print
+ elapsed times, not only when some objects are uncollectable/unreachable.
+ Original patch by Neil Schemenauer.
+
+- Issue #3439: Add a bit_length method to int and long.
+
+- Issue #2183: Simplify and optimize bytecode for list comprehensions. Original
+ patch by Neal Norwitz.
+
+- Issue #4597: Fixed exception handling when the __exit__ function of a context
+ manager returns a value that cannot be converted to a bool.
+
+- Issue #4597: Fixed several opcodes that weren't always propagating exceptions.
+
+- Issue #4445: Replace ``sizeof(PyStringObject)`` with
+ ``offsetof(PyStringObject, ob_sval) + 1`` when allocating memory for str
+ instances. On a typical machine this saves 3 bytes of memory (on average) per
+ string allocation.
+
+- Issue #3996: On Windows, the PyOS_CheckStack function would cause the
+ interpreter to abort ("Fatal Python error: Could not reset the stack!")
+ instead of throwing a MemoryError.
+
+- Issue #3689: The list reversed iterator now supports __length_hint__ instead
+ of __len__. Behavior now matches other reversed iterators.
+
+- Issue #4367: Python would segfault during compiling when the unicodedata
+ module couldn't be imported and \N escapes were present.
-- Issue #7233: Fix a number of two-argument Decimal methods to make
- sure that they accept an int or long as the second argument. Also
- fix buggy handling of large arguments (those with coefficient longer
- than the current precision) in shift and rotate.
+- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()`` method on
+ file objects with closefd=False. The file descriptor is still kept open but
+ the file object behaves like a closed file. The ``FileIO`` object also got a
+ new readonly attribute ``closefd``.
-- Issue #7082: When falling back to the MIME 'name' parameter, the
- correct place to look for it is the Content-Type header.
+- Issue #4348: Some bytearray methods returned that didn't cause any change to
+ the bytearray, returned the same bytearray instead of a copy.
-- Issue #7099: Decimal.is_normal now returns True for numbers with exponent
- larger than emax.
+- Issue #4317: Fixed a crash in the ``imageop.rgb2rgb8()`` function.
-- Issue #7205: Fix a possible deadlock when using a BZ2File object from
- several threads at once.
+- Issue #4230: If ``__getattr__`` is a descriptor, it now functions correctly.
-- Issue #7048: Force Decimal.logb to round its result when that result
- is too large to fit in the current precision.
+- Issue #4048: The parser module now correctly validates relative imports.
-- Issue #1488943: difflib.Differ() doesn't always add hints for tab characters
+- Issue #4225: ``from __future__ import unicode_literals`` didn't work in an
+ exec statement.
-- Issue #5037: Proxy the __unicode__ special method to __unicode__ instead of
- __str__.
+- Issue #4176: Fixed a crash when pickling an object which ``__reduce__`` method
+ does not return iterators for the 4th and 5th items.
-- Issue #7481: When a threading.Thread failed to start it would leave the
- instance stuck in initial state and present in threading.enumerate().
+- Issue #4209: Enabling unicode_literals and the print_function in the same
+ __future__ import didn't work.
-- Issue #1068268: The subprocess module now handles EINTR in internal
- os.waitpid and os.read system calls where appropriate.
+- Using ``nonlocal`` as a variable name will now raise a Py3k SyntaxWarning
+ because it is a reserved word in 3.x.
-Extension Modules
------------------
+- On windows, ``os.chdir()`` given unicode was not working if
+ GetCurrentDirectoryW returned a path longer than MAX_PATH. (But It's doubtful
+ this code path is really executed because I cannot move to such directory on
+ win2k)
-- Issue #7808: Fix reference leaks in _bsddb and related tests.
+- Issue #4069: When ``set.remove(element)`` is used with a set element, the
+ element is temporarily replaced with an equivalent frozenset. But the
+ eventual KeyError would always report the empty ``frozenset()`` as the missing
+ key. Now it correctly refers to the initial element.
-- Stop providing crtassem.h symbols when compiling with Visual Studio 2010, as
- msvcr100.dll is not a platform assembly anymore.
+- Issue #4509: Various issues surrounding resize of bytearray objects to which
+ there are buffer exports.
-- Issue #6877: Make it possible to link the readline extension to libedit
- on OSX.
+- Issue #4748: Lambda generators no longer return a value.
-- Expat: Fix DoS via XML document with malformed UTF-8 sequences
- (CVE_2009_3560).
+- Issue #3582: Use native TLS functions on Windows
-- Issue #7242: On Solaris 9 and earlier calling os.fork() from within a
- thread could raise an incorrect RuntimeError about not holding the import
- lock. The import lock is now reinitialized after fork.
+- The re.sub(), re.subn() and re.split() functions now accept a flags parameter.
-- Issue #7999: os.setreuid() and os.setregid() would refuse to accept a -1
- parameter on some platforms such as OS X.
+- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with short
+ file names.
-Build
------
+- Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add `do { ... } while (0)'
+ to avoid compiler warnings.
-- Issue #3920, #7903: Define _BSD_SOURCE on OpenBSD 4.4 through 4.9.
+- Issue #5705: os.setuid() would not accept values > 2**31-1 but pwd.getpwnam()
+ returned them on 64bit platforms.
-- Issue #7661: Allow ctypes to be built from a non-ASCII directory path.
- Patch by Florent Xicluna.
+- Issue #5108: Handle %s like %S and %R in PyUnicode_FromFormatV(): Call
+ PyUnicode_DecodeUTF8() once, remember the result and output it in a second
+ step. This avoids problems with counting UTF-8 bytes that ignores the effect
+ of using the replace error handler in PyUnicode_DecodeUTF8().
-- Issue #7589: Only build the nis module when the correct header files are
- found.
+- Issue #3739: The unicode-internal encoder now reports the number of characters
+ consumed like any other encoder (instead of the number of bytes).
-- Switch to OpenSSL 0.9.8l on Windows.
+- Issue #2422: When compiled with the ``--with-valgrind`` option, the pymalloc
+ allocator will be automatically disabled when running under Valgrind. This
+ gives improved memory leak detection when running under Valgrind, while taking
+ advantage of pymalloc at other times.
-- Issue #6603: Change READ_TIMESTAMP macro in ceval.c so that it
- compiles correctly under gcc on x86-64. This fixes a reported
- problem with the --with-tsc build on x86-64.
+Library
+-------
-- Ensure that it possible to build extensions for the default
- binary distribution on OSX 10.6 even when the user does not
- have the 10.4u SDK installed.
+- Add count() and reverse() methods to collections.deque().
-- Issue #7541: when using ``python-config`` with a framework install the
- compiler might use the wrong library.
+- Fix variations of extending deques: d.extend(d) d.extendleft(d) d+=d
-Documentation
--------------
+- Issue #6986: Fix crash in the JSON C accelerator when called with the wrong
+ parameter types. Patch by Victor Stinner.
-- Updating `Using Python` documentation to include description of CPython's
- -J, -U and -X options.
+- logging: Added optional "secure" parameter to SMTPHandler, to enable use of
+ TLS with authentication credentials.
-- Update python manual page (options -B, -O0, -s, environment variables
- PYTHONDONTWRITEBYTECODE, PYTHONNOUSERSITE).
+- Issue #1923: Fixed the removal of meaningful spaces when PKG-INFO is generated
+ in Distutils. Patch by Stephen Emslie.
-Tests
------
+- Issue #4120: Drop reference to CRT from manifest when building extensions with
+ msvc9compiler.
-- issue #7728: test_timeout was changed to use test_support.bind_port
- instead of a hard coded port.
+- Issue #7333: The ``posix`` module gains an ``initgroups()`` function providing
+ access to the initgroups(3) C library call on Unix systems which implement it.
+ Patch by Jean-Paul Calderone.
-- Issue #7498: test_multiprocessing now uses test_support.find_unused_port
- instead of a hardcoded port number in test_rapid_restart.
+- Issue #7408: Fixed distutils.tests.sdist so it doesn't check for group
+ ownership when the group is not forced, because the group may be different
+ from the user's group and inherit from its container when the test is run.
-- Issue #7431: use TESTFN in test_linecache instead of trying to create a
- file in the Lib/test directory, which might be read-only for the
- user running the tests.
+- Issue #1515: Enable use of deepcopy() with instance methods. Patch by Robert
+ Collins.
-- Issue #7324: add a sanity check to regrtest argument parsing to
- catch the case of an option with no handler.
+- Issue #7403: logging: Fixed possible race condition in lock creation.
-- Issue #7295: Do not use a hardcoded file name in test_tarfile.
+- Issue #6845: Add restart support for binary upload in ftplib. The
+ ``storbinary()`` method of FTP and FTP_TLS objects gains an optional "rest"
+ argument. Patch by Pablo Mouzo.
-- Issue #7270: Add some dedicated unit tests for multi-thread synchronization
- primitives such as Lock, RLock, Condition, Event and Semaphore.
+- Issue #5788: ``datetime.timedelta`` objects get a new ``total_seconds()``
+ method returning the total number of seconds in the duration. Patch by Brian
+ Quinlan.
-- Issue #7055: test___all__ now greedily detects all modules which have an
- __all__ attribute, rather than using a hardcoded and incomplete list.
+- Issue #6615: logging: Used weakrefs in internal handler list.
+- Issue #1488943: ``difflib.Differ`` doesn't always add hints for tab
+ characters.
-What's New in Python 2.6.4 final?
-=================================
+- Issue #6123: tarfile now opens empty archives correctly and consistently
+ raises ReadError on empty files.
-*Release date: 25-Oct-2009*
+- Issue #7354: distutils.tests.test_msvc9compiler - dragfullwindows can be 2.
-Core and Builtins
------------------
+- Issue #5037: Proxy the __unicode__ special method to __unicode__ instead of
+ __str__.
-Library
--------
+- Issue #7341: Close the internal file object in the TarFile constructor in case
+ of an error.
+- Issue #7293: ``distutils.test_msvc9compiler`` is fixed to work on any fresh
+ Windows box. Help provided by David Bolen.
-What's New in Python 2.6.4rc2?
-==============================
+- Issue #7328: pydoc no longer corrupts sys.path when run with the '-m' switch.
-*Release date: 18-Oct-2009*
+- Issue #2054: ftplib now provides an FTP_TLS class to do secure FTP using TLS
+ or SSL. Patch by Giampaolo Rodola'.
-Core and Builtins
------------------
+- Issue #4969: The mimetypes module now reads the MIME database from the
+ registry under Windows. Patch by Gabriel Genellina.
-Library
--------
+- Issue #6816: runpy now provides a run_path function that allows Python code to
+ execute file paths that refer to source or compiled Python files as well as
+ zipfiles, directories and other valid sys.path entries that contain a
+ __main__.py file. This allows applications that run other Python scripts to
+ support the same flexibility as the CPython command line itself.
-- Issue #7115: Fixed the extension module builds that is failing when using
- paths in the extension name instead of dotted names.
+- Issue #7318: multiprocessing now uses a timeout when it fails to establish a
+ connection with another process, rather than looping endlessly. The default
+ timeout is 20 seconds, which should be amply sufficient for local connections.
-- Issue #7120: logging: Removed import of multiprocessing which is causing
- crash in GAE.
+- Issue #7197: Allow unittest.TextTestRunner objects to be pickled and
+ unpickled. This fixes crashes under Windows when trying to run
+ test_multiprocessing in verbose mode.
-- Issue #7149: fix exception in urllib when detecting proxy settings on OSX.
+- Issue #7282: Fix a memory leak when an RLock was used in a thread other than
+ those started through ``threading.Thread`` (for example, using
+ ``thread.start_new_thread()``.
+- Issue #7264: Fix a possible deadlock when deallocating thread-local objects
+ which are part of a reference cycle.
-What's New in Python 2.6.4rc1?
-==============================
+- Issue #7211: Allow 64-bit values for the ``ident`` and ``data`` fields of
+ kevent objects on 64-bit systems. Patch by Michael Broghton.
-*Release date: 07-Oct-2009*
+- Issue #6896: ``mailbox.Maildir`` now invalidates its internal cache each time
+ a modification is done through it. This fixes inconsistencies and test
+ failures on systems with slightly bogus mtime behaviour.
-Core and Builtins
------------------
+- Issue #7246 & Issue #7208: getpass now properly flushes input before reading
+ from stdin so that existing input does not confuse it and lead to incorrect
+ entry or an IOError. It also properly flushes it afterwards to avoid the
+ terminal echoing the input afterwards on OSes such as Solaris.
-- Issue #7019: Raise ValueError when unmarshalling bad long data, instead
- of producing internally inconsistent Python longs.
+- Issue #7233: Fix a number of two-argument Decimal methods to make sure that
+ they accept an int or long as the second argument. Also fix buggy handling of
+ large arguments (those with coefficient longer than the current precision) in
+ shift and rotate.
-Library
--------
+- Issue #4750: Store the basename of the original filename in the gzip FNAME
+ header as required by RFC 1952.
-- Issue #7068: Fixed the partial renaming that occured in r72594.
+- Issue #1180: Added a new global option to ignore ~/.pydistutils.cfg in
+ Distutils.
-- Issue #7064: Fixed the incompatibility with Setuptools in distutils
- when running the build_ext command.
+- Issue #7218: Fix test_site for win32, the directory comparison was done with
+ an uppercase.
-- Issue #7052: Removed nonexisting NullHandler from logging.__all__.
+- Issue #7205: Fix a possible deadlock when using a BZ2File object from several
+ threads at once.
-- Issue #7039: Fixed distutils.tests.test_sysconfig when running on
- installation with no build.
+- Issue #7071: byte-compilation in Distutils is now done with respect to
+ sys.dont_write_bytecode.
-Tests
------
+- Issue #7066: archive_util.make_archive now restores the cwd if an error is
+ raised. Initial patch by Ezio Melotti.
-- Issue #7042: Fix test_signal (test_itimer_virtual) failure on OS X 10.6.
+- Issue #6218: io.StringIO and io.BytesIO instances are now picklable with
+ protocol 2.
+- Issue #7077: logging: SysLogHandler now treats Unicode as per RFC 5424.
-What's New in Python 2.6.3
-==========================
+- Issue #7099: Decimal.is_normal now returns True for numbers with exponent
+ larger than emax.
-*Release date: 02-Oct-2009*
+- Issue #5833: Fix extra space character in readline completion with the GNU
+ readline library version 6.0.
-What's New in Python 2.6.3rc1
-=============================
+- Issue #7133: SSL objects now support the new buffer API.
-*Release date: 29-Sep-2009*
+- Issue #7149: urllib fails on OSX in the proxy detection code.
-Core and Builtins
------------------
+- Issue #7069: Make inspect.isabstract() return a boolean.
-- Issue #5329: Fix os.popen* regression from 2.5 with commands as a
- sequence running through the shell. Patch by Jean-Paul Calderone
- and Jani Hakala.
+- Add support to the ``ihooks`` module for relative imports.
-- Issue #6990: Fix threading.local subclasses leaving old state around
- after a reference cycle GC which could be recycled by new locals.
+- Issue #6894: Fixed the issue urllib2 doesn't respect "no_proxy" environment.
-- Issue #6922: Fix an infinite loop when trying to decode an invalid
- UTF-32 stream with a non-raising error handler like "replace" or "ignore".
+- Issue #7086: Added TCP support to SysLogHandler, and tidied up some
+ anachronisms in the code which were a relic of 1.5.2 compatibility.
-- Issue #1590864: Fix potential deadlock when mixing threads and fork().
+- Issue #7082: When falling back to the MIME 'name' parameter, the correct place
+ to look for it is the Content-Type header.
-- Issue #6844: Do not emit DeprecationWarnings when accessing a "message"
- attribute on exceptions that was set explicitly.
+- Issue #7048: Force Decimal.logb to round its result when that result is too
+ large to fit in the current precision.
-- Issue #6846: Fix bug where bytearray.pop() returns negative integers.
+- Issue #6516: Added owner/group support when creating tar archives in
+ Distutils.
-- Issue #6707: dir() on an uninitialized module caused a crash.
+- Issue #7031: Add ``TestCase.assert(Not)IsInstance()`` methods.
-- Issue #6540: Fixed crash for bytearray.translate() with invalid parameters.
+- Issue #6790: Make it possible again to pass an ``array.array`` to
+ ``httplib.HTTPConnection.send``. Patch by Kirk McDonald.
-- Issue #6573: set.union() stopped processing inputs if an instance of self
- occurred in the argument chain.
+- Issue #6236, #6348: Fix various failures in the `io` module under AIX and
+ other platforms, when using a non-gcc compiler. Patch by egreen.
-- Issue #6070: On posix platforms import no longer copies the execute bit
- from the .py file to the .pyc file if it is set.
+- Issue #6954: Fixed crash when using DISTUTILS_DEBUG flag in Distutils.
-- Issue #4547: When debugging a very large function, it was not always
- possible to update the lineno attribute of the current frame.
+- Issue #6851: Fix urllib.urlopen crash on secondairy threads on OSX 10.6
-- Issue #4618: When unicode arguments are passed to print(), the default
- separator and end should be unicode also.
+- Issue #4606: Passing 'None' if ctypes argtype is set to POINTER(...) does now
+ always result in NULL.
-- Issue #6119: Fixed an incorrect Py3k warning about order comparisons of
- built-in functions and methods.
+- Issue #5042: ctypes Structure sub-subclass does now initialize correctly with
+ base class positional arguments.
-- Issue #5330: C functions called with keyword arguments were not reported by
- the various profiling modules (profile, cProfile). Patch by Hagen Fürstenau.
+- Issue #6938: Fix a TypeError in string formatting of a multiprocessing debug
+ message.
-- Issue #6089: str.format can raise SystemError with certain invalid
- field specifiers.
+- Issue #6635: Fix profiler printing usage message.
-- Issue #5994: the marshal module now has docstrings.
+- Issue #6856: Add a filter keyword argument to TarFile.add().
-- Issue #5981: Fix two minor inf/nan issues in float.fromhex: (1) inf
- and nan strings with trailing whitespace were incorrectly rejected
- and (2) the interpretation of fromhex('-nan') didn't match that of
- float('-nan').
+- Issue #6163: Fixed HP-UX runtime library dir options in
+ distutils.unixcompiler. Initial patch by Sridhar Ratnakumar and Michael
+ Haubenwallner.
-- Issue #5890: in subclasses of 'property' the __doc__ attribute was
- shadowed by classtype's, even if it was None. property now
- inserts the __doc__ into the subclass instance __dict__.
+- Issue #6857: Default format() alignment should be '>' for Decimal instances.
-- Issue #5724: (See also issue #4575.) Fix Py_IS_INFINITY macro to
- work correctly on x87 FPUs: it now forces its argument to double
- before testing for infinity.
+- Issue #6795: int(Decimal('nan')) now raises ValueError instead of returning
+ NaN or raising InvalidContext. Also, fix infinite recursion in
+ long(Decimal('nan')).
-- Issue #4971: Fix titlecase for characters that are their own
- titlecase, but not their own uppercase.
+- Issue #6850: Fix bug in Decimal._parse_format_specifier for formats with no
+ type specifier.
-- Issue #5829: complex('1e-500') no longer raises an exception
+- Issue #4937: plat-mac/bundlebuilder refers to non-existing version.plist.
-- Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on
- some built-in types.
+- Issue #6838: Use a list to accumulate the value instead of repeatedly
+ concatenating strings in httplib's HTTPResponse._read_chunked providing a
+ significant speed increase when downloading large files servend with a
+ Transfer-Encoding of 'chunked'.
-- Issue #5283: Setting __class__ in __del__ caused a segfault.
+- Issue #5275: In Cookie's Cookie.load(), properly handle non-string arguments
+ as documented.
-- Issue #5759: float() didn't call __float__ on str subclasses.
+- Issue #2666: Handle BROWSER environment variable properly for unknown browser
+ names in the webbrowser module.
-- Issue #5108: Handle %s like %S and %R in PyUnicode_FromFormatV(): Call
- PyUnicode_DecodeUTF8() once, remember the result and output it in a second
- step. This avoids problems with counting UTF-8 bytes that ignores the effect
- of using the replace error handler in PyUnicode_DecodeUTF8().
+- Issue #6054: Do not normalize stored pathnames in tarfile.
-Library
--------
+- Issue #6794: Fix Decimal.compare_total and Decimal.compare_total_mag: NaN
+ payloads are now ordered by integer value rather than lexicographically.
-- Issue #6894: Fixed the issue urllib2 doesn't respect "no_proxy" environment
+- Issue #6693: New functions in site.py to get user/global site packages paths.
-- Issue #6790: Make it possible again to pass an `array.array` to
- `httplib.HTTPConnection.send`. Patch by Kirk McDonald.
+- The thread.lock type now supports weak references.
-- Issue #6236, #6348: Fix various failures in the `io` module under AIX
- and other platforms, when using a non-gcc compiler. Patch by egreen.
+- Issue #1356969: Add missing info methods in Tix.HList.
-- Issue #6851: Fix urllib.urlopen crash on secondairy threads on OSX 10.6
+- Issue #1522587: New constants and methods for the Tix.Grid widget.
-- Issue #6947: Fix distutils test on windows. Patch by Hirokazu Yamamoto.
+- Issue #1250469: Fix the return value of Tix.PanedWindow.panes.
-- Issue #4606: Passing 'None' if ctypes argtype is set to POINTER(...)
- does now always result in NULL.
+- Issue #1119673: Do not override Tkinter.Text methods when creating a
+ ScrolledText.
-- Issue #5042: ctypes Structure sub-subclass does now initialize
- correctly with base class positional arguments.
+- Issue #6665: Fix fnmatch to properly match filenames with newlines in them.
-- Issue #6938: Fix a TypeError in string formatting of a multiprocessing
- debug message.
+- Issue #1135: Add the XView and YView mix-ins to avoid duplicating the xview*
+ and yview* methods.
-- Issue #6635: Fix profiler printing usage message.
+- Issue #6629: Fix a data corruption issue in the new `io` package, which could
+ occur when writing to a BufferedRandom object (e.g. a file opened in "rb+" or
+ "wb+" mode) after having buffered a certain amount of data for reading. This
+ bug was not present in the pure Python implementation.
-- Issue #6795: int(Decimal('nan')) now raises ValueError instead of
- returning NaN or raising InvalidContext. Also, fix infinite recursion
- in long(Decimal('nan')).
+- Issue #4660: If a multiprocessing.JoinableQueue.put() was preempted, it was
+ possible to get a spurious 'task_done() called too many times' error.
-- Issue #6850: Fix bug in Decimal._parse_format_specifier for formats
- with no type specifier.
+- 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 #4937: plat-mac/bundlebuilder revers to non-existing version.plist
+- Issue #6595: The Decimal constructor now allows arbitrary Unicode decimal
+ digits in input, as recommended by the standard. Previously it was restricted
+ to accepting [0-9].
-- Issue #6838: Use a list to accumulate the value instead of
- repeatedly concatenating strings in httplib's
- HTTPResponse._read_chunked providing a significant speed increase
- when downloading large files servend with a Transfer-Encoding of 'chunked'.
+- Issue #6511: ZipFile now raises BadZipfile (instead of an IOError) when
+ opening an empty or very small file.
-- Issue #6794: Fix Decimal.compare_total and Decimal.compare_total_mag: NaN
- payloads are now ordered by integer value rather than lexicographically.
+- Issue #6553: Fixed a crash in cPickle.load(), when given a file-like object
+ containing incomplete data.
-- Issue #6117: Fix O(n**2) performance degradation when outputting lots of
- small data on a buffered socket.socket.makefile() object.
+- Issue #6545: Removed assert statements in distutils.Extension, so the behavior
+ is similar when used with -O.
-- Issue #6637: defaultdict.copy() did not work when the default factory
- was left unspecified. Also, the eval/repr round-trip would fail when
- the default_factory was None.
+- unittest has been split up into a package. All old names should still work.
-- Issue #1424152: Fix for httplib, urllib2 to support SSL while working through
- proxy. Original patch by Christopher Li, changes made by Senthil Kumaran.
+- Issue #6431: Make Fraction type return NotImplemented when it doesn't know how
+ to handle a comparison without loss of precision. Also add correct handling
+ of infinities and nans for comparisons with float.
-- Issues #5155, 5313, 5331: multiprocessing.Process._bootstrap was
- unconditionally calling "os.close(sys.stdin.fileno())" resulting in file
- descriptor errors
+- Issue #6415: Fixed warnings.warn segfault on bad formatted string.
-- Issue #6415: Fixed warnings.warn sagfault on bad formatted string.
+- Issue #6466: Now distutils.cygwinccompiler and distutils.emxccompiler uses the
+ same refactored function to get gcc/ld/dllwrap versions numbers. It's
+ ``distutils.util.get_compiler_versions()``. Added deprecation warnings for
+ the obsolete get_versions() functions.
-- Issue #6344: Fixed a crash of mmap.read() when passed a negative argument.
+- Issue #6433: Fixed issues with multiprocessing.pool.map hanging on empty list.
-- Issue #5230: pydoc would report no documentation found if a module generated
- a 'not found' import error when loaded; it now reports the import errors.
- Thanks to Lucas Prado Melo for initial fix and collaboration on the tests.
+- Issue #6314: logging: Extra checks on the "level" argument in more places.
-- Issue #6274: Fixed possible file descriptors leak in subprocess.py
+- Issue #2622: Fixed an ImportError when importing email.messsage from a
+ standalone application built with py2exe or py2app.
-- Issue #6271: mmap tried to close invalid file handle (-1) when annonymous.
- (On Unix)
+- Issue #6455: Fixed test_build_ext under win32.
-- Issue #6258: Support AMD64 in bdist_msi.
+- Issue #6377: Enabled the compiler option, and deprecate its usage as an
+ attribute.
-- Issue #6252: Fixed bug in next rollover time computation in
- TimedRotatingFileHandler.
+- Issue #6413: Fixed the log level in distutils.dist for announce.
-- Issue #6121: pydoc now ignores leading and trailing spaces in the
- argument to the 'help' function.
+- Issue #3392: The subprocess communicate() method no longer fails in select()
+ when file descriptors are large; communicate() now uses poll() when possible.
-- Issue #6050: Don't fail extracting a directory from a zipfile if
- the directory already exists.
+- Issue #6403: Fixed package path usage in build_ext.
-- collections.namedtuple() was not working with the following field
- names: cls, self, tuple, itemgetter, and property.
+- Issues #5155, #5313, #5331: multiprocessing.Process._bootstrap was
+ unconditionally calling "os.close(sys.stdin.fileno())" resulting in file
+ descriptor errors.
-- Issue #1309352: fcntl now converts its third arguments to a C `long` rather
- than an int, which makes some operations possible under 64-bit Linux (e.g.
- DN_MULTISHOT with F_NOTIFY).
+- Issue #6365: Distutils build_ext inplace mode was copying the compiled
+ extension in a subdirectory if the extension name had dots.
-- Issue #1983: Fix functions taking or returning a process identifier to use
- the dedicated C type ``pid_t`` instead of a C ``int``. Some platforms have
- a process identifier type wider than the standard C integer type.
+- Issue #6344: Fixed a crash of mmap.read() when passed a negative argument.
-- Issue #4066: smtplib.SMTP_SSL._get_socket now correctly returns the socket.
- Patch by Farhan Ahmad, test by Marcin Bachry.
+- Issue #5230: pydoc would report no documentation found if a module generated a
+ 'not found' import error when loaded; it now reports the import errors.
+ Thanks to Lucas Prado Melo for initial fix and collaboration on the tests.
-- Issue #1655: Make imaplib IPv6-capable. Patch by Derek Morr.
+- Issue #6314: ``logging.basicConfig()`` performs extra checks on the "level"
+ argument.
-- Issue #1664: Make nntplib IPv6-capable. Patch by Derek Morr.
+- Issue #6164: Added an AIX specific linker argument in Distutils unixcompiler.
+ Original patch by Sridhar Ratnakumar.
-- Issue #5971: StreamHandler.handleError now swallows IOErrors which occur when
- trying to print a traceback.
+- Issue #6274: Fixed possible file descriptors leak in subprocess.py.
-- Issue #5955: aifc's close method did not close the file it wrapped,
- now it does. This also means getfp method now returns the real fp.
+- Issue #6189: Restored compatibility of subprocess.py with Python 2.2.
-- Issue #4875: On win32, ctypes.util.find_library does no longer
- return directories.
+- Issue #6287: Added the license field in Distutils documentation.
-- Issue #5692: In :class:`zipfile.Zipfile`, fix wrong path calculation when
- extracting a file to the root directory.
+- Issue #6286: Now Distutils upload command is based on urllib2 instead of
+ httplib, allowing the usage of http_proxy.
-- Issue #2245: aifc now skips chunk types it doesn't recognize, per spec.
+- Issue #6271: mmap tried to close invalid file handle (-1) for anonymous maps
+ on Unix.
-- Issue #4305: ctypes should now build again on mipsel-linux-gnu
+- Issue #6215: All bug fixes and enhancements from the Python 3.1 io library
+ (including the fast C implementation) have been backported to the standard
+ ``io`` module.
-- Issue #5853: calling a function of the mimetypes module from several threads
- at once could hit the recursion limit if the mimetypes database hadn't been
- initialized before.
+- Issue #6258: Support AMD64 in bdist_msi.
-- Issue #5041: ctypes does now allow pickling wide character.
+- Issue #6252: Fixed bug in next rollover time computation in
+ TimedRotatingFileHandler.
-- Issue #5768: Fixed bug in Unicode output logic and test case for same.
+- Issue #6263: Fixed syntax error in distutils.cygwincompiler.
-- Issue #1161031: fix readwrite select flag handling: POLLPRI now
- results in a handle_expt_event call, not handle_read_event, and POLLERR
- and POLLNVAL now call handle_close, not handle_expt_event. Also,
- dispatcher now has an 'ignore_log_types' attribute for suppressing
- log messages, which is set to 'warning' by default.
+- Issue #5201: distutils.sysconfig.parse_makefile() now understands ``$$`` in
+ Makefiles. This prevents compile errors when using syntax like:
+ ``LDFLAGS='-rpath=\$$LIB:/some/other/path'``. Patch by Floris Bruynooghe.
-- Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in
- makeunicodedata.py and regenerated the Unicode database (This fixes
- u'\u1d79'.lower() == '\x00').
+- Issue #5767: Removed sgmlop support from xmlrpclib.
-- Issue #1202: zipfile module would cause a DeprecationWarning when storing
- files with a CRC32 > 2**31-1.
+- Issue #6131: test_modulefinder leaked when run after test_distutils. Patch by
+ Hirokazu Yamamoto.
-- Issue #6163: Fixed HP-UX runtime library dir options in
- distutils.unixcompiler. Initial patch by Sridhar Ratnakumar and
- Michael Haubenwallner.
+- Issue #6048: Now Distutils uses the tarfile module in archive_util.
-- Issue #4660: If a multiprocessing.JoinableQueue.put() was preempted, it was
- possible to get a spurious 'task_done() called too many times' error.
+- Issue #5150: IDLE's format menu now has an option to strip trailing
+ whitespace.
-- Issue #6595: The Decimal constructor now allows arbitrary Unicode
- decimal digits in input, as recommended by the standard. Previously
- it was restricted to accepting [0-9].
+- Issue #6121: pydoc now ignores leading and trailing spaces in the argument to
+ the 'help' function.
-- Issue #6553: Fixed a crash in cPickle.load(), when given a file-like object
- containing incomplete data.
+- In unittest, using a skipping decorator on a class is now equivalent to
+ skipping every test on the class. The ClassTestSuite class has been removed.
-- Issue #2622: Fixed an ImportError when importing email.message from a
- standalone application built with py2exe or py2app.
+- Issue #6050: Don't fail extracting a directory from a zipfile if the directory
+ already exists.
-- Issue #6455: Fixed test_build_ext under win32.
+- Issue #5311: bdist_msi can now build packages that do not depend on a specific
+ Python version.
-- Issue #6403: Fixed package path usage in build_ext.
+- Issue #1309352: fcntl now converts its third arguments to a C `long` rather
+ than an int, which makes some operations possible under 64-bit Linux (e.g.
+ DN_MULTISHOT with F_NOTIFY).
-- Issue #6287: Added the license field in Distutils documentation.
+- Issue #1424152: Fix for httplib, urllib2 to support SSL while working through
+ proxy. Original patch by Christopher Li, changes made by Senthil Kumaran.
-- Issue #6263: Fixed syntax error in distutils.cygwincompiler.
+- Issue #1983: Fix functions taking or returning a process identifier to use the
+ dedicated C type ``pid_t`` instead of a C ``int``. Some platforms have a
+ process identifier type wider than the standard C integer type.
-- Issue #5201: distutils.sysconfig.parse_makefile() now understands `$$`
- in Makefiles. This prevents compile errors when using syntax like:
- `LDFLAGS='-rpath=\$$LIB:/some/other/path'`. Patch by Floris Bruynooghe.
+- Issue #4066: smtplib.SMTP_SSL._get_socket now correctly returns the socket.
+ Patch by Farhan Ahmad, test by Marcin Bachry.
-- Issue #6062: In distutils, fixed the package option of build_ext. Feedback
+- Issue #6062: In distutils, fixed the package option of build_ext. Feedback
and tests on pywin32 by Tim Golden.
-- Issue #1309567: Fix linecache behavior of stripping subdirectories when
- looking for files given by a relative filename.
-
-- Issue #6046: Fixed the library extension when distutils build_ext is used
- inplace. Initial patch by Roumen Petrov.
-
-- Issue #6022: a test file was created in the current working directory by
- test_get_outputs in Distutils.
-
-- Issue #5977: distutils build_ext.get_outputs was not taking into account the
- inplace option. Initial patch by kxroberto.
+- Issue #6053: Fixed distutils tests on win32. Patch by Hirokazu Yamamoto.
-- Issue #5984: distutils.command.build_ext.check_extensions_list checks were
- broken for old-style extensions.
+- Issue #6046: Fixed the library extension when distutils build_ext is used in
+ place. Initial patch by Roumen Petrov.
-- Issue #5854: Updated __all__ to include some missing names and remove some
- names which should not be exported.
+- Issue #6041: Now distutils `sdist` and `register` commands use `check` as a
+ subcommand.
-- Issue #5810: Fixed Distutils test_build_scripts so it uses
- sysconfig.get_config_vars.
+- Issue #2116: Weak references and weak dictionaries now support copy()ing and
+ deepcopy()ing.
-- Issue #6865: Fix reference counting issue in the initialization of the pwd
- module.
+- Issue #1655: Make imaplib IPv6-capable. Patch by Derek Morr.
-Extension Modules
------------------
+- Issue #5918: Fix a crash in the parser module.
-- Issue #6944: Fix a SystemError when socket.getnameinfo() was called
- with something other than a tuple as first argument.
+- Issue #1664: Make nntplib IPv6-capable. Patch by Derek Morr.
-- Issue #6848: Fix curses module build failure on OS X 10.6.
+- Issue #6022: A test file was created in the current working directory by
+ test_get_outputs in Distutils.
-- Fix expat to not segfault with specially crafted input.
+- Issue #4050: inspect.findsource/getsource now raise an IOError if the 'source'
+ file is a binary. Patch by Brodie Rao, tests by Daniel Diniz.
-- Issue #4873: Fix resource leaks in error cases of pwd and grp.
+- Issue #5977: distutils build_ext.get_outputs was not taking into account the
+ inplace option. Initial patch by kxroberto.
-Build
------
+- Issue #5984: distutils.command.build_ext.check_extensions_list checks were
+ broken for old-style extensions.
-- Issue #6980: Fix ctypes build failure on armel-linux-gnueabi with
- -mfloat-abi=softfp.
+- Issue #5971: StreamHandler.handleError now swallows IOErrors which occur when
+ trying to print a traceback.
-- Issue #6802: Fix build issues on MacOSX 10.6
+- Issue #5976: Fixed Distutils test_check_environ.
-- Issue #5390: Add uninstall icon independent of whether file
- extensions are installed.
+- Issue #5900: Ensure RUNPATH is added to extension modules with RPATH if GNU ld
+ is used. Original patch by Floris Bruynooghe.
-- Issue #6094: Build correctly with Subversion 1.7.
+- Issue #5941: Distutils build_clib command was not working anymore because of
+ an incomplete costumization of the archiver command. Added ARFLAGS in the
+ Makefile besides AR and make Distutils use it. Original patch by David
+ Cournapeau.
-- Issue #5726: Make Modules/ld_so_aix return the actual exit code of the
- linker, rather than always exit successfully. Patch by Floris Bruynooghe.
+- Issue #5955: aifc's close method did not close the file it wrapped, now it
+ does. This also means getfp method now returns the real fp.
-- Issue #5809: Specifying both --enable-framework and --enable-shared is
- an error. Configure now explicity tells you about this.
+- Issue #4875: On win32, ctypes.util.find_library does no longer return
+ directories.
-Documentation
--------------
+- Issue #5142: Add the ability to skip modules while stepping to pdb.
-- Issue #6556: Fixed the Distutils configuration files location explanation
- for Windows.
+- Issue #1309567: Fix linecache behavior of stripping subdirectories when
+ looking for files given by a relative filename.
-- Issue #6801 : symmetric_difference_update also accepts |.
- Thanks to Carl Chenet.
+- Issue #5692: In ``zipfile.Zipfile``, fix wrong path calculation when
+ extracting a file to the root directory.
-Tests
------
+- Issue #5913: ``os.listdir()`` should fail for empty path on windows.
-- Issue #5837: Certain sequences of calls to set() and unset() for
- support.EnvironmentVarGuard objects restored the environment variables
- incorrectly on __exit__.
+- Issue #5084: Unpickling now interns the attribute names of pickled objects,
+ saving memory and avoiding growth in size of subsequent pickles. Proposal and
+ original patch by Jake McGuire.
+- Issue #3002: ``shutil.copyfile()`` and ``shutil.copytree()`` now raise an
+ error when a named pipe is encountered, rather than blocking infinitely.
-What's New in Python 2.6.2
-==========================
+- Issue #3959: The ipaddr module has been added to the standard library.
+ Contributed by Google.
-*Release date: 14-Apr-2009*
+- Issue #2245: aifc now skips chunk types it doesn't recognize, per spec.
+- Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive anymore.
-What's New in Python 2.6.2 rc 1
-===============================
+- Issue #4305: ctypes should now build again on mipsel-linux-gnu
-*Release date: 06-Apr-2009*
+- Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the string
+ is already in normalized form, by performing a quick check beforehand.
+ Original patch by Rauli Ruohonen.
-Core and Builtins
------------------
+- Issue #5853: Calling a function of the mimetypes module from several threads
+ at once could hit the recursion limit if the mimetypes database hadn't been
+ initialized before.
-- xrange() is now registered as a Sequence.
+- Issue #5854: Updated __all__ to include some missing names and remove some
+ names which should not be exported.
-- Fix a problem in PyErr_NormalizeException that leads to "undetected errors"
- when hitting the recursion limit under certain circumstances.
+- Issue #5810: Fixed Distutils test_build_scripts so it uses
+ ``sysconfig.get_config_vars()``.
-- Issue #1665206: Remove the last eager import in _warnings.c and make it lazy.
+- Issue #4951: Fixed failure in test_httpservers.
-- Issue #4034: Fix weird attribute error messages of the traceback object. (As
- a result traceback.__members__ no longer exists.)
+- Issue #3102: All global symbols that the _ctypes extension defines are now
+ prefixed with 'Py' or '_ctypes'.
-- Issue #5247: Improve error message when unknown format codes are
- used when using str.format() with str, unicode, long, int, and
- float arguments.
+- Issue #5041: ctypes does now allow pickling wide character.
-- Running Python with the -3 option now also warns about classic division
- for ints and longs.
+- Issue #5812: For the two-argument form of the Fraction constructor,
+ ``Fraction(m, n)``, m and n are permitted to be arbitrary Rational instances.
-- Issue #5013: Fixed a bug in FileHandler which occurred when the delay
- parameter was set.
+- Issue #5812: Fraction('1e6') is valid: more generally, any string that's valid
+ for float() is now valid for Fraction(), with the exception of strings
+ representing NaNs and infinities.
-- Issue #1242657: the __len__() and __length_hint__() calls in several tools
- were suppressing all exceptions. These include list(), filter(), map(),
- zip(), and bytearray().
+- Issue #5795: Fixed test_distutils failure on Debian ppc.
-- Issue #4935: The overflow checking code in the expandtabs() method common
- to str, bytes and bytearray could be optimized away by the compiler, letting
- the interpreter segfault instead of raising an error.
+- Issue #5768: Fixed bug in Unicode output logic and test case for same.
-- Issue #4915: Port sysmodule to Windows CE.
+- Issue #1161031: Fix readwrite select flag handling: POLLPRI now results in a
+ handle_expt_event call, not handle_read_event, and POLLERR and POLLNVAL now
+ call handle_close, not handle_expt_event. Also, dispatcher now has an
+ 'ignore_log_types' attribute for suppressing log messages, which is set to
+ 'warning' by default.
-- Issue #1180193: When importing a module from a .pyc (or .pyo) file with
- an existing .py counterpart, override the co_filename attributes of all
- code objects if the original filename is obsolete (which can happen if the
- file has been renamed, moved, or if it is accessed through different paths).
- Patch by Ziga Seilnacht and Jean-Paul Calderone.
+- Issue #5607: Fixed Distutils test_get_platform for Mac OS X fat binaries.
-- Issue #4075: Use OutputDebugStringW in Py_FatalError.
+- Issue #5741: Don't disallow "%%" (which is an escape for "%") when setting a
+ value in SafeConfigParser.
-- Issue #4797: IOError.filename was not set when _fileio.FileIO failed to open
- file with `str' filename on Windows.
+- Issue #5732: Added a new command in Distutils: check.
-- Issue #3680: Reference cycles created through a dict, set or deque iterator
- did not get collected.
+- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
+ platforms. Initial patch by Paul Moore.
-- Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types
- where the tp_hash and tp_dict slots are both NULL.
+- Issue #2254: Fix CGIHTTPServer information disclosure. Relative paths are now
+ collapsed within the url properly before looking in cgi_directories.
-- Issue #4764: With io.open, IOError.filename is set when trying to open a
- directory on POSIX systems.
+- Issue #5095: Added bdist_msi to the list of bdist supported formats. Initial
+ fix by Steven Bethard.
-- Issue #4764: IOError.filename is set when trying to open a directory on POSIX
- systems.
+- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases. Initial
+ fix by Wayne Davison.
-- Issue #4759: None is now allowed as the first argument of
- bytearray.translate(). It was always allowed for bytes.translate().
+- Issue #5693: TestSuite.__iter__ can now be consistently overridden in
+ subclasses.
-- Issue #4759: fix a segfault for bytearray.translate(x, None).
+- Issue #5694: Removed spurious test output in Distutils (test_clean).
-- Added test case to ensure attempts to read from a file opened for writing
- fail.
+- Issue #5471: Fix os.path.expanduser() for $HOME set to '/'.
-- Issue #4597: Fixed several opcodes that weren't always propagating
- exceptions.
+- Issue #1326077: Fix the formatting of SyntaxErrors by the traceback module.
-- Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always
- print elapsed times, not only when some objects are uncollectable /
- unreachable. Original patch by Neil Schemenauer.
+- Issue #1726172: Fix IndexError in the case of and empty response in ftplib.
-- Issue #4589: Fixed exception handling when the __exit__ function of a
- context manager returns a value that cannot be converted to a bool.
+- Issue #2625: Added missing iteritems() call to the for loop in
+ mailbox.MH.get_message().
-- Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()``
- method on file objects with closefd=False. The file descriptor is still
- kept open but the file object behaves like a closed file. The ``FileIO``
- object also got a new readonly attribute ``closefd``.
+- Issue #5585: Add the ability to call an initializer to
+ mulitiprocessing.manager so that users can install custom handlers/etc.
-- Issue #3689: The list reversed iterator now supports __length_hint__
- instead of __len__. Behavior now matches other reversed iterators.
+- Issue #3551: Patch multiprocessing to raise a proper exception if the size of
+ the object when writefile is called causes a ERROR_NO_SYSTEM_RESOURCES. Added
+ docs to note the limitation.
-- Issue #4509: Various issues surrounding resize of bytearray objects to
- which there are buffer exports.
+- unittest.assertNotEqual() now uses the inequality operator (!=) instead of the
+ equality operator.
-- Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with
- short file names.
+- Issue #6001: Test discovery for unittest. Implemented in
+ unittest.TestLoader.discover and from the command line.
-- Issue #5705: os.setuid() would not accept values > 2**31-1 but pwd.getpwnam()
- returned them on 64bit platforms.
+- Issue #5679: The methods unittest.TestCase.addCleanup and doCleanups were
+ added. addCleanup allows you to add cleanup functions that will be called
+ unconditionally (after setUp if setUp fails, otherwise after tearDown). This
+ allows for much simpler resource allocation and deallocation during tests.
-Library
--------
+- Issue #3379: unittest.main now takes an optional exit argument. If False main
+ doesn't call sys.exit allowing it to be used from the interactive interpreter.
-- Issue #5741: don't disallow "%%" (which is an escape for "%") when setting
- a value in SafeConfigParser.
+- Issue #5995: unittest.main now takes an optional verbosity argument allowing
+ test modules to be run with a higher than default verbosity.
-- Issue #5731: Distutils bdist_wininst no longer worked on non-Windows
- platforms. Initial patch by Paul Moore.
+- Issue #5995: A fix to allow you to run "python -m unittest test_module" or
+ "python -m unittest test_module.TestClass" from the command line.
-- Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases.
- Initial fix by Wayne Davison.
+- Issue #5728: unittest.TestResult has new startTestRun and stopTestRun methods;
+ called immediately before and after a test run.
-- Issue #5471: Fix os.path.expanduser() for $HOME set to '/'.
+- Issue #5663: Better failure messages for unittest asserts. Default assertTrue
+ and assertFalse messages are now useful. TestCase has a longMessage attribute.
+ This defaults to False, but if set to True useful error messages are shown in
+ addition to explicit messages passed to assert methods.
-- Issue #1726172: fix IndexError in the case of and empty response in ftplib.
+- Issue #3110: Add additional protect around SEM_VALUE_MAX for multiprocessing.
- In Pdb, prevent the reassignment of __builtin__._ by sys.displayhook on
printing out values.
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