Core and Builtins
-----------------
-Library
--------
+- Issue #11235: Fix OverflowError when trying to import a source file whose
+ modification time doesn't fit in a 32-bit timestamp.
-- Issue #13885: CVE-2011-3389: the _ssl module would always disable the CBC
- IV attack countermeasure.
+- Issue #11638: Unicode strings in 'name' and 'version' no longer cause
+ UnicodeDecodeErrors.
+- Fix the fix for issue #12149: it was incorrect, although it had the side
+ effect of appearing to resolve the issue. Thanks to Mark Shannon for
+ noticing.
-What's New in Python 2.6.7?
-===========================
+- Issue #13546: Fixed an overflow issue that could crash the intepreter when
+ calling sys.setrecursionlimit((1<<31)-1).
-*Release date: 2011-06-03*
+- Issue #13333: The UTF-7 decoder now accepts lone surrogates (the encoder
+ already accepts them).
-*NOTE: Python 2.6 is in security-fix-only mode. No non-security bug fixes are
- allowed. Python 2.6.7 and beyond will be source only releases.*
+- Issue #10519: Avoid unnecessary recursive function calls in
+ setobject.c.
-* No changes since 2.6.7rc2.
+- Issue #13268: Fix the assert statement when a tuple is passed as the message.
+- Issue #13018: Fix reference leaks in error paths in dictobject.c.
+ Patch by Suman Saha.
-What's New in Python 2.6.7 rc 2?
-================================
+- Issue #12604: VTRACE macro expanded to no-op in _sre.c to avoid compiler
+ warnings. Patch by Josh Triplett and Petri Lehtinen.
-*Release date: 2011-05-20*
+- Issue #7833: Extension modules built using distutils on Windows will no
+ longer include a "manifest" to prevent them failing at import time in some
+ embedded situations.
-*NOTE: Python 2.6 is in security-fix-only mode. No non-security bug fixes are
- allowed. Python 2.6.7 and beyond will be source only releases.*
+- Issue #13186: Fix __delitem__ on old-style instances when invoked through
+ PySequence_DelItem.
+- Issue #13156: Revert the patch for issue #10517 (reset TLS upon fork()),
+ which was only relevant for the native pthread TLS implementation.
-Library
--------
+- Issue #7732: Fix a crash on importing a module if a directory has the same
+ name than a Python module (e.g. "__init__.py"): don't close the file twice.
-- Issue #11662: Make urllib and urllib2 ignore redirections if the
- scheme is not HTTP, HTTPS or FTP (CVE-2011-1521).
+- Issue #12973: Fix overflow checks that invoked undefined behaviour in
+ int.__pow__. These overflow checks were causing int.__pow__ to produce
+ incorrect results with recent versions of Clang, as a result of the
+ compiler optimizing the check away. Also fix similar overflow checks
+ in list_repeat (listobject.c) and islice_next (itertoolsmodule.c). These
+ bugs caused test failures with recent versions of Clang.
-- Issue #11442: Add a charset parameter to the Content-type in SimpleHTTPServer
- to avoid XSS attacks.
+- Issue #12266: Fix str.capitalize() to correctly uppercase/lowercase
+ titlecased and cased non-letter characters.
+- Issues #12610 and #12609: Verify that user generated AST has correct string
+ and identifier types before compiling.
-What's New in Python 2.6.7 rc 1?
-================================
+- Issue #11627: Fix segfault when __new__ on a exception returns a
+ non-exception class.
-*Release date: 2011-05-06*
+- Issue #12149: Update the method cache after a type's dictionnary gets
+ cleared by the garbage collector. This fixes a segfault when an instance
+ and its type get caught in a reference cycle, and the instance's
+ deallocator calls one of the methods on the type (e.g. when subclassing
+ IOBase). Diagnosis and patch by Davide Rizzo.
-Library
--------
+- Issue #12501: Remove Py3k warning for callable. callable() is supported
+ again in Python 3.2.
-- Issue #9129: smtpd.py is vulnerable to DoS attacks deriving from missing
- error handling when accepting a new connection.
+- Issue #9611, #9015: FileIO.read(), FileIO.readinto(), FileIO.write() and
+ os.write() clamp the length to INT_MAX on Windows.
+- Issue #1195: my_fgets() now always clears errors before calling fgets(). Fix
+ the following case: sys.stdin.read() stopped with CTRL+d (end of file),
+ raw_input() interrupted by CTRL+c.
-What's New in Python 2.6.6?
-===========================
+- Issue #10860: httplib now correctly handles an empty port after port
+ delimiter in URLs.
-*Release date: 2010-08-24*
+- dict_proxy objects now display their contents rather than just the class
+ name.
-* No changes since 2.6.6rc2.
+Library
+-------
-What's New in Python 2.6.6 rc 2?
-================================
++- Issue #13885: CVE-2011-3389: the _ssl module would always disable the CBC
++ IV attack countermeasure.
+
+- Issue #6631: Disallow relative file paths in urllib urlopen methods.
-*Release date: 2010-08-16*
+- Issue #13781: Prevent gzip.GzipFile from using the dummy filename provided by
+ file objects opened with os.fdopen().
-Library
--------
+- Issue #13589: Fix some serialization primitives in the aifc module.
+ Patch by Oleg Plakhotnyuk.
-- Issue #9600: Don't use relative import for _multiprocessing on Windows.
+- Issue #13803: Under Solaris, distutils doesn't include bitness
+ in the directory name.
-- Issue #8688: Revert regression introduced in 2.6.6rc1 (making Distutils
- recalculate MANIFEST every time).
+- Issue #13642: Unquote before b64encoding user:password during Basic
+ Authentication. Patch contributed by Joonas Kuorilehto and Michele Orrù.
-- Issue #5798: Handle select.poll flag oddities properly on OS X.
- This fixes test_asynchat and test_smtplib failures on OS X.
+- Issue #13636: Weak ciphers are now disabled by default in the ssl module
+ (except when SSLv2 is explicitly asked for).
-- Issue #9543: Fix regression in socket.py introduced in Python 2.6.6 rc 1
- in r83624.
+- Issue #12798: Updated the mimetypes documentation.
-Extension Modules
------------------
+- Issue #13639: Accept unicode filenames in tarfile.open(mode="w|gz").
-- Issue #7567: Don't call `setupterm' twice.
+- Issue #1785: Fix inspect and pydoc with misbehaving descriptors.
-Tests
------
+- Issue #7502: Fix equality comparison for DocTestCase instances. Patch by
+ Cédric Krier.
-- Issue #9568: Fix test_urllib2_localnet on OS X 10.3.
+- Issue #11870: threading: Properly reinitialize threads internal locks and
+ condition variables to avoid deadlocks in child processes.
-- Issue #9145: Fix test_coercion failure in refleak runs.
+- Issue #8035: urllib: Fix a bug where the client could remain stuck after a
+ redirection or an error.
-- Issue #8433: Fix test_curses failure caused by newer versions of
- ncurses returning ERR from getmouse() when there are no mouse
- events available.
+- Issue #4625: If IDLE cannot write to its recent file or breakpoint
+ files, display a message popup and continue rather than crash.
+ (original patch by Roger Serwy)
+- tarfile.py: Correctly detect bzip2 compressed streams with blocksizes
+ other than 900k.
-What's New in Python 2.6.6 rc 1?
-================================
+- Issue #13573: The csv.writer now uses the repr() for floats rather than str().
+ This allows floats to round-trip without loss of precision.
-*Release date: 2010-08-03*
+- Issue #13439: Fix many errors in turtle docstrings.
-Core and Builtins
------------------
+- Issue #12856: Ensure child processes do not inherit the parent's random
+ seed for filename generation in the tempfile module. Patch by Brian
+ Harring.
-- Issue #6213: Implement getstate() and setstate() methods of utf-8-sig and
- utf-16 incremental encoders.
+- Issue #13458: Fix a memory leak in the ssl module when decoding a
+ certificate with a subjectAltName. Patch by Robert Xiao.
-- 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 #13415: os.unsetenv() doesn't ignore errors anymore.
-- Issue #9058: Remove assertions about INT_MAX in UnicodeDecodeError.
+- Issue #13322: Fix BufferedWriter.write() to ensure that BlockingIOError is
+ raised when the wrapped raw file is non-blocking and the write would block.
+ Previous code assumed that the raw write() would raise BlockingIOError, but
+ RawIOBase.write() is defined to returned None when the call would block.
+ Patch by sbt.
-- Issue #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 #13358: HTMLParser now calls handle_data only once for each CDATA.
-- 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 #4147: minidom's toprettyxml no longer adds whitespace around a text
+ node when it is the only child of an element. Initial patch by Dan
+ Kenigsberg.
-- Issue #4108: In urllib.robotparser, if there are multiple 'User-agent: *'
- entries, consider the first one.
+- Issue #8793: Prevent IDLE crash when given strings with invalid hex escape
+ sequences.
-- Issue #9354: Provide getsockopt() in asyncore's file_wrapper.
+- Issues #1745761, #755670, #13357, #12629, #1200313: HTMLParser now correctly
+ handles non-valid attributes, including adjacent and unquoted attributes.
-- In the unicode/str.format(), raise a ValueError when indexes to arguments are
- too large.
+- Issue #13193: Fix distutils.filelist.FileList under Windows. The
+ "recursive-include" directive now recognizes both legal path separators.
-- 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 #13373: multiprocessing.Queue.get() could sometimes block indefinitely
+ when called with a timeout. Patch by Arnaud Ysmal.
-- Issue #7902: When using explicit relative import syntax, don't try
- implicit relative import semantics.
+- Issue #3067: Enhance the documentation and docstring of
+ locale.setlocale().
-- Issue #7079: Fix a possible crash when closing a file object while using
- it from another thread. Patch by Daniel Stutzbach.
+- Issue #13254: Fix Maildir initialization so that maildir contents
+ are read correctly.
-- 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 #13140: Fix the daemon_threads attribute of ThreadingMixIn.
-- Issue #8417: Raise an OverflowError when an integer larger than sys.maxsize
- is passed to bytearray.
+- Issue #2892: preserve iterparse events in case of SyntaxError.
-- Issue #8329: Don't return the same lists from select.select when no fds are
- changed.
+- Issue #670664: Fix HTMLParser to correctly handle the content of
+ ``<script>...</script>`` and ``<style>...</style>``.
-- Raise a TypeError when trying to delete a T_STRING_INPLACE struct member.
+- Issue #10817: Fix urlretrieve function to raise ContentTooShortError even
+ when reporthook is None. Patch by Jyrki Pulliainen.
-- Issue #1583863: An unicode subclass can now override the __unicode__ method.
+- Issue #13296: Fix IDLE to clear compile __future__ flags on shell restart.
+ (Patch by Roger Serwy)
-- Issue #7507: Quote "!" in pipes.quote(); it is special to some shells.
+- Issue #7334: close source files on ElementTree.parse and iterparse.
-- Issue #7544: Preallocate thread memory before creating the thread to avoid
- a fatal error in low memory condition.
+- Issue #13232: logging: Improved logging of exceptions in the presence of
+ multiple encodings.
-- Issue #7820: The parser tokenizer restores all bytes in the right if
- the BOM check fails.
+- Issue #10332: multiprocessing: fix a race condition when a Pool is closed
+ before all tasks have completed.
-- Issue #7072: isspace(0xa0) is true on Mac OS X
+- Issue #1548891: The cStringIO.StringIO() constructor now encodes unicode
+ arguments with the system default encoding just like the write() method
+ does, instead of converting it to a raw buffer. This also fixes handling of
+ unicode input in the shlex module (#6988, #1170).
-C-API
------
+- Issue #9168: now smtpd is able to bind privileged port.
-- 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 #12529: fix cgi.parse_header issue on strings with double-quotes and
+ semicolons together. Patch by Ben Darnell and Petri Lehtinen.
-Library
--------
+- Issue #6090: zipfile raises a ValueError when a document with a timestamp
+ earlier than 1980 is provided. Patch contributed by Petri Lehtinen.
-- 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 #13194: zlib.compressobj().copy() and zlib.decompressobj().copy() are
+ now available on Windows.
-- Issue #7092: Fix the DeprecationWarnings emitted by the standard library
- when using the -3 flag. Patch by Florent Xicluna.
+- Issue #13114: Fix the distutils commands check and register when the
+ long description is a Unicode string with non-ASCII characters.
-- Issue #7395: Fix tracebacks in pstats interactive browser.
+- Issue #7367: Fix pkgutil.walk_paths to skip directories whose
+ contents cannot be read.
-- Issue #1713: Fix os.path.ismount(), which returned true for symbolic links
- across devices.
+- Issue #7425: Prevent pydoc -k failures due to module import errors.
+ (Backport to 2.7 of existing 3.x fix)
-- Issue #8826: Properly load old-style "expires" attribute in http.cookies.
+- Issue #13099: Fix sqlite3.Cursor.lastrowid under a Turkish locale.
+ Reported and diagnosed by Thomas Kluyver.
-- Issue #1690103: Fix initial namespace for code run with trace.main().
+- Issue #7689: Allow pickling of dynamically created classes when their
+ metaclass is registered with copy_reg. Patch by Nicolas M. Thiéry and
+ Craig Citro.
-- Issue #5294: Fix the behavior of pdb's "continue" command when called
- in the top-level debugged frame.
+- Issue #13058: ossaudiodev: fix a file descriptor leak on error. Patch by
+ Thomas Jarosch.
-- Issue #5727: Restore the ability to use readline when calling into pdb
- in doctests.
+- Issue #12931: xmlrpclib now encodes Unicode URI to ISO-8859-1, instead of
+ failing with a UnicodeDecodeError.
-- 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 #8933: distutils' PKG-INFO files will now correctly report
+ Metadata-Version: 1.1 instead of 1.0 if a Classifier or Download-URL field is
+ present.
-- Issue #8048: Prevent doctests from failing when sys.displayhook has
- been reassigned.
+- Issue #8286: The distutils command sdist will print a warning message instead
+ of crashing when an invalid path is given in the manifest template.
-- Issue #8015: In pdb, do not crash when an empty line is entered as
- a breakpoint command.
+- Issue #12841: tarfile unnecessarily checked the existence of numerical user
+ and group ids on extraction. If one of them did not exist the respective id
+ of the current user (i.e. root) was used for the file and ownership
+ information was lost.
-- Issue #7909: Do not touch paths with the special prefixes ``\\.\``
- or ``\\?\`` in ntpath.normpath().
+- Issue #10946: The distutils commands bdist_dumb, bdist_wininst and bdist_msi
+ now respect a --skip-build option given to bdist.
-- Issue #5146: Handle UID THREAD command correctly in imaplib.
+- Issue #12287: Fix a stack corruption in ossaudiodev module when the FD is
+ greater than FD_SETSIZE.
-- Issue #5147: Fix the header generated for cookie files written by
- http.cookiejar.MozillaCookieJar.
+- Issue #12839: Fix crash in zlib module due to version mismatch.
+ Fix by Richard M. Tew.
-- Issue #8198: In pydoc, output all help text to the correct stream
- when sys.stdout is reassigned.
+- Issue #12786: Set communication pipes used by subprocess.Popen CLOEXEC to
+ avoid them being inherited by other subprocesses.
-- Issue #1019882: Fix IndexError when loading certain hotshot stats.
+- Issue #4106: Fix occasional exceptions printed out by multiprocessing on
+ interpreter shutdown.
-- Issue #8471: In doctest, properly reset the output stream to an empty
- string when Unicode was previously output.
+- Issue #11657: Fix sending file descriptors over 255 over a multiprocessing
+ Pipe.
-- Issue #8397: Raise an error when attempting to mix iteration and regular
- reads on a BZ2File object, rather than returning incorrect results.
+- Issue #12213: Fix a buffering bug with interleaved reads and writes that
+ could appear on io.BufferedRandom streams.
-- 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 #12326: sys.platform is now always 'linux2' on Linux, even if Python
+ is compiled on Linux 3.
-- Issue #7066: archive_util.make_archive now restores the cwd if an error is
- raised. Initial patch by Ezio Melotti.
+- Issue #13007: whichdb should recognize gdbm 1.9 magic numbers.
-- 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 #9173: Let shutil._make_archive work if the logger argument is None.
-- Issue #3704: cookielib was not properly handling URLs with a / in the
- parameters.
+- Issue #12650: Fix a race condition where a subprocess.Popen could leak
+ resources (FD/zombie) when killed at the wrong time.
-- 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 #12752: Fix regression which prevented locale.normalize() from
+ accepting unicode strings.
-- Issue #7895: platform.mac_ver() no longer crashes after calling os.fork()
+- Issue #12683: urlparse updated to include svn as schemes that uses relative
+ paths. (svn from 1.5 onwards support relative path).
-- 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 #11933: Fix incorrect mtime comparison in distutils.
-- Issue #1555570: email no longer inserts extra blank lines when a \r\n
- combo crosses an 8192 byte boundary.
+- Issues #11104, #8688: Fix the behavior of distutils' sdist command with
+ manually-maintained MANIFEST files.
-- Issue #9164: Ensure sysconfig handles dupblice archs while building on OSX
+- Issue #8887: "pydoc somebuiltin.somemethod" (or help('somebuiltin.somemethod')
+ in Python code) now finds the doc of the method.
-- Issue #7646: The fnmatch pattern cache no longer grows without bound.
+- Issue #12603: Fix pydoc.synopsis() on files with non-negative st_mtime.
-- 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 #12514: Use try/finally to assure the timeit module restores garbage
+ collections when it is done.
-- 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 #12607: In subprocess, fix issue where if stdin, stdout or stderr is
+ given as a low fd, it gets overwritten.
-- Issue #9130: Fix validation of relative imports in parser module.
+- Issue #12102: Document that buffered files must be flushed before being used
+ with mmap. Patch by Steffen Daode Nurpmeso.
-- Issue #9128: Fix validation of class decorators in parser module.
+- Issue #12560: Build libpython.so on OpenBSD. Patch by Stefan Sperling.
-- 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 #1813: Fix codec lookup and setting/getting locales under Turkish
+ locales.
-- Issue #6589: cleanup asyncore.socket_map in case smtpd.SMTPServer constructor
- raises an exception.
+- Issue #10883: Fix socket leaks in urllib when using FTP.
-- Issue #9125: Add recognition of 'except ... as ...' syntax to parser module.
+- Issue #12592: Make Python build on OpenBSD 5 (and future major releases).
-- Issue #9085: email package version number bumped to its correct
- value of 4.0.2 (same as it was in 2.5).
+- Issue #12372: POSIX semaphores are broken on AIX: don't use them.
-- Issue #9075: In the ssl module, remove the setting of a ``debug`` flag
- on an OpenSSL structure.
+- Issue #12571: Add a plat-linux3 directory mirroring the plat-linux2
+ directory, so that "import DLFCN" and other similar imports work on
+ Linux 3.0.
-- Issue #5610: feedparser no longer eats extra characters at the end of
- a body part if the body part ends with a \r\n.
+- Issue #7484: smtplib no longer puts <> around addresses in VRFY and EXPN
+ commands; they aren't required and in fact postfix doesn't support that form.
-- Issue #8924: logging: Improved error handling for Unicode in exception text.
+- Issue #11603: Fix a crash when __str__ is rebound as __repr__. Patch by
+ Andreas Stührk.
-- Fix codecs.escape_encode to return the correct consumed size.
+- Issue #12502: asyncore: fix polling loop with AF_UNIX sockets.
-- Issue #6470: Drop UNC prefix in FixTk.
+- Issue #4376: ctypes now supports nested structures in a endian different than
+ the parent structure. Patch by Vlad Riscutia.
-- Issue #8833: tarfile created hard link entries with a size field != 0 by
- mistake.
+- Issue #12493: subprocess: Popen.communicate() now also handles EINTR errors
+ if the process has only one pipe.
-- Issue #1368247: set_charset (and therefore MIMEText) now automatically
- encodes a unicode _payload to the output_charset.
+- Issue #12467: warnings: fix a race condition if a warning is emitted at
+ shutdown, if globals()['__file__'] is None.
-- Issue #7150: Raise OverflowError if the result of adding or subtracting
- timedelta from date or datetime falls outside of the MINYEAR:MAXYEAR range.
+- Issue #12352: Fix a deadlock in multiprocessing.Heap when a block is freed by
+ the garbage collector while the Heap lock is held.
-- Issue #6662: Fix parsing of malformatted charref (&#bad;), patch written by
- Fredrik Håård
+- Issue #9516: On Mac OS X, change Distutils to no longer globally attempt to
+ check or set the MACOSX_DEPLOYMENT_TARGET environment variable for the
+ interpreter process. This could cause failures in non-Distutils subprocesses
+ and was unreliable since tests or user programs could modify the interpreter
+ environment after Distutils set it. Instead, have Distutils set the the
+ deployment target only in the environment of each build subprocess. It is
+ still possible to globally override the default by setting
+ MACOSX_DEPLOYMENT_TARGET before launching the interpreter; its value must be
+ greater or equal to the default value, the value with which the interpreter
+ was built.
-- Issue #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 #11802: The cache in filecmp now has a maximum size of 100 so that
+ it won't grow without bound.
-- Issue #3924: Ignore cookies with invalid "version" field in cookielib.
+- Issue #12404: Remove C89 incompatible code from mmap module. Patch by Akira
+ Kitada.
-- 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 #11700: mailbox proxy object close methods can now be called multiple
+ times without error, and _ProxyFile now closes the wrapped file.
-- Issue #5640: Fix Shift-JIS incremental encoder for error handlers different
- than strict
+- Issue #12133: AbstractHTTPHandler.do_open() of urllib.request closes the HTTP
+ connection if its getresponse() method fails with a socket error. Patch
+ written by Ezio Melotti.
-- Issue #8782: Add a trailing newline in linecache.updatecache to the last line
- of files without one.
+- Issue #9284: Allow inspect.findsource() to find the source of doctest
+ functions.
-- Issue #8729: Return NotImplemented from collections.Mapping.__eq__ when
- comparing to a non-mapping.
+- Issue #10694: zipfile now ignores garbage at the end of a zipfile.
-- Issue #5918: Fix a crash in the parser module.
+- Issue #11583: Speed up os.path.isdir on Windows by using GetFileAttributes
+ instead of os.stat.
-- Issue #8688: Distutils now recalculates MANIFEST everytime.
+- Issue #12080: Fix a performance issue in Decimal._power_exact that caused
+ some corner-case Decimal.__pow__ calls to take an unreasonably long time.
-- 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.
+- Named tuples now work correctly with vars().
-- Issue #5099: subprocess.Popen.__del__ no longer references global objects,
- leading to issues during interpreter shutdown.
+- sys.setcheckinterval() now updates the current ticker count as well as
+ updating the check interval, so if the user decreases the check interval,
+ the ticker doesn't have to wind down to zero from the old starting point
+ before the new interval takes effect. And if the user increases the
+ interval, it makes sure the new limit takes effect right away rather have an
+ early task switch before recognizing the new interval.
-- Issue #8681: Make the zlib module's error messages more informative when
- the zlib itself doesn't give any detailed explanation.
+- Issue #12085: Fix an attribute error in subprocess.Popen destructor if the
+ constructor has failed, e.g. because of an undeclared keyword argument. Patch
+ written by Oleg Oshmyan.
-- Issue #8674: Fixed a number of incorrect or undefined-behaviour-inducing
- overflow checks in the audioop module.
+Extension Modules
+-----------------
-- Issue #8571: Fix an internal error when compressing or decompressing a
- chunk larger than 1GB with the zlib module's compressor and decompressor
- objects.
+- bsddb module: Erratic behaviour of "DBEnv->rep_elect()" because a typo.
+ Possible crash.
-- Issue #8573: asyncore _strerror() function might throw ValueError.
+- Issue #13774: json: Fix a SystemError when a bogus encoding is passed to
+ json.loads().
-- 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 #9975: socket: Fix incorrect use of flowinfo and scope_id. Patch by
+ Vilmos Nebehaj.
-- Issue #4265: shutil.copyfile() was leaking file descriptors when disk fills.
- Patch by Tres Seaver.
+- Issue #13159: FileIO, BZ2File, and the built-in file class now use a
+ linear-time buffer growth strategy instead of a quadratic one.
-- 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 #13070: Fix a crash when a TextIOWrapper caught in a reference cycle
+ would be finalized after the reference to its underlying BufferedRWPair's
+ writer got cleared by the GC.
-- Issue #8313: traceback.format_exception_only() encodes unicode message to
- ASCII with backslashreplace error handler if str(value) failed
+- Issue #12881: ctypes: Fix segfault with large structure field names.
-- 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 #13013: ctypes: Fix a reference leak in PyCArrayType_from_ctype.
+ Thanks to Suman Saha for finding the bug and providing a patch.
-- Issue #7865: The close() method of :mod:`io` objects should not swallow
- exceptions raised by the implicit flush(). Also ensure that calling
- close() several times is supported. Initial patch by Pascal Chambon.
+- Issue #13022: Fix: _multiprocessing.recvfd() doesn't check that
+ file descriptor was actually received.
-- Issue #8581: logging: removed errors raised when closing handlers twice.
+- Issue #12483: ctypes: Fix a crash when the destruction of a callback
+ object triggers the garbage collector.
-- Issue #4687: Fix accuracy of garbage collection runtimes displayed with
- gc.DEBUG_STATS.
+- Issue #12950: Fix passing file descriptors in multiprocessing, under
+ OpenIndiana/Illumos.
-- Issue #8354: The siginterrupt setting is now preserved for all signals,
- not just SIGCHLD.
+- Issue #12764: Fix a crash in ctypes when the name of a Structure field is not
+ a string.
-- 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 #9651: Fix a crash when ctypes.create_string_buffer(0) was passed to
+ some functions like file.write().
-- Issue #8464: tarfile no longer creates files with execute permissions set
- when mode="w|" is used.
+- Issue #10309: Define _GNU_SOURCE so that mremap() gets the proper
+ signature. Without this, architectures where sizeof void* != sizeof int are
+ broken. Patch given by Hallvard B Furuseth.
-- Issue #7834: Fix connect() of Bluetooth L2CAP sockets with recent versions
- of the Linux kernel. Patch by Yaniv Aknin.
+Build
+-----
-- Issue #6312: Fixed http HEAD request when the transfer encoding is chunked.
- It should correctly return an empty response now.
+- Issue #8746: Correct faulty configure checks so that os.chflags() and
+ os.lchflags() are once again built on systems that support these
+ functions (*BSD and OS X). Also add new stat file flags for OS X
+ (UF_HIDDEN and UF_COMPRESSED).
-- Issue #8086: In :func:`ssl.DER_cert_to_PEM_cert()`, fix missing newline
- before the certificate footer. Patch by Kyle VanderBeek.
+Tools/Demos
+-----------
-- Issue #8549: Fix compiling the _ssl extension under AIX. Patch by
- Sridhar Ratnakumar.
+- Issue #10639: reindent.py no longer converts newlines and will raise
+ an error if attempting to convert a file with mixed newlines.
-- 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.
+Tools/Demos
+-----------
-- Issue #5103: SSL handshake would ignore the socket timeout and block
- indefinitely if the other end didn't respond.
+- Issue #13628: python-gdb.py is now able to retrieve more frames in the Python
+ traceback if Python is optimized.
-- The do_handshake() method of SSL objects now adjusts the blocking mode of
- the SSL structure if necessary (as other methods already do).
+Tests
+-----
-- Issue #5238: Calling makefile() on an SSL object would prevent the
- underlying socket from being closed until all objects get truely destroyed.
+- Issue #13304: Skip test case if user site-packages disabled (-s or
+ PYTHONNOUSERSITE). (Patch by Carl Meyer)
-- Issue #7943: Fix circular reference created when instantiating an SSL
- socket. Initial patch by Péter Szabó.
+- Issue #13218: Fix test_ssl failures on Debian/Ubuntu.
-- 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 #12821: Fix test_fcntl failures on OpenBSD 5.
-- 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 #12331: The test suite for lib2to3 can now run from an installed
+ Python.
-- Issue #4814: timeout parameter is now applied also for connections resulting
- from PORT/EPRT commands.
+- Issue #12549: Correct test_platform to not fail when OS X returns 'x86_64'
+ as the processor type on some Mac systems.
-- Issue #3817: ftplib.FTP.abort() method now considers 225 a valid response
- code as stated in RFC-959 at chapter 5.4.
+- Skip network tests when getaddrinfo() returns EAI_AGAIN, meaning a temporary
+ failure in name resolution.
-- Issue #5277: Fix quote counting when parsing RFC 2231 encoded parameters.
+- Issue #11812: Solve transient socket failure to connect to 'localhost'
+ in test_telnetlib.py.
-- Issue #8179: Fix macpath.realpath() on a non-existing path.
+- Solved a potential deadlock in test_telnetlib.py. Related to issue #11812.
-- Issue #8310: Allow dis to examine new style classes.
+- Avoid failing in test_robotparser when mueblesmoraleda.com is flaky and
+ an overzealous DNS service (e.g. OpenDNS) redirects to a placeholder
+ Web site.
-- Issue #7667: Fix doctest failures with non-ASCII paths.
+- Avoid failing in test_urllibnet.test_bad_address when some overzealous
+ DNS service (e.g. OpenDNS) resolves a non-existent domain name. The test
+ is now skipped instead.
-- Issue #7624: Fix isinstance(foo(), collections.Callable) for old-style
- classes.
+- Issue #8716: Avoid crashes caused by Aqua Tk on OSX when attempting to run
+ test_tk or test_ttk_guionly under a username that is not currently logged
+ in to the console windowserver (as may be the case under buildbot or ssh).
-- Issue #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 #12141: Install a copy of template C module file so that
+ test_build_ext of test_distutils is no longer silently skipped when
+ run outside of a build directory.
-- Issue #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 #8746: Add additional tests for os.chflags() and os.lchflags().
+ Patch by Garrett Cooper.
-- Issue #6544: fix a reference leak in the kqueue implementation's error
- handling.
+- Issue #10736: Fix test_ttk test_widgets failures with Cocoa Tk 8.5.9
+ on Mac OS X. (Patch by Ronald Oussoren)
-- 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 #12057: Add tests for ISO 2022 codecs (iso2022_jp, iso2022_jp_2,
+ iso2022_kr).
-- Issue #6906: Tk should not set Unicode environment variables on Windows.
+Documentation
+-------------
-- Issue #1054943: Fix unicodedata.normalize('NFC', text) for the Public Review
- Issue #29
+- Issue #13883: PYTHONCASEOK also works on OS X, OS/2, and RiscOS.
-- Issue #7494: fix a crash in _lsprof (cProfile) after clearing the profiler,
- reset also the pointer to the current pointer context.
+- Issue #2134: The tokenize documentation has been clarified to explain why
+ all operator and delimiter tokens are treated as token.OP tokens.
-- Issue #4961: Inconsistent/wrong result of askyesno function in tkMessageBox
- with Tcl/Tk-8.5.
+- Issue #13513: Fix io.IOBase documentation to correctly link to the
+ io.IOBase.readline method instead of the readline module.
-- Issue #7356: ctypes.util: Make parsing of ldconfig output independent of
- the locale.
+- Issue #13237: Reorganise subprocess documentation to emphasise convenience
+ functions and the most commonly needed arguments to Popen.
-Extension Modules
------------------
+- Issue #13141: Demonstrate recommended style for SocketServer examples.
-- Fix memory leak in ssl._ssl._test_decode_cert.
-- Issue #9422: Fix memory leak when re-initializing a struct.Struct object.
+What's New in Python 2.7.2?
+===========================
-- 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.
+*Release date: 2011-06-11*
- os.getgroups() can now return more than 16 groups on MacOSX.
+Library
+-------
-- 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 #12009: Fixed regression in netrc file comment handling.
-- 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.
+Extension Modules
+-----------------
-- 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 #1221: Make pyexpat.__version__ equal to the Python version.
-Build
------
-- Issue #8854: Fix finding Visual Studio 2008 on Windows x64.
+What's New in Python 2.7.2 release candidate 1?
+===============================================
-- Issue #3928: os.mknod() now available in Solaris, also.
+*Release date: 2011-05-29*
-- Issue #8175: --with-universal-archs=all works correctly on OSX 10.5
+Core and Builtins
+-----------------
-- Issue #6716: Quote -x arguments of compileall in MSI installer.
+- Issue #9670: Increase the default stack size for secondary threads on
+ Mac OS X and FreeBSD to reduce the chances of a crash instead of a
+ "maximum recursion depth" RuntimeError exception.
+ (patch by Ronald Oussoren)
-- Issue #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.
+- Correct lookup of __dir__ on objects. This allows old-style classes to have
+ __dir__. It also causes errors besides AttributeError found on lookup to be
+ propagated.
-Tests
------
+- Issue #1195: Fix input() if it is interrupted by CTRL+d and then CTRL+c,
+ clear the end-of-file indicator after CTRL+d.
-- Issue #7849: Now the utility ``check_warnings`` verifies if the warnings are
- effectively raised. A new private utility ``_check_py3k_warnings`` has been
- backported to help silencing py3k warnings.
+- Issue #8651: PyArg_Parse*() functions raise an OverflowError if the file
+ doesn't have PY_SSIZE_T_CLEAN define and the size doesn't fit in an int
+ (length bigger than 2^31-1 bytes).
-- Issue #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 #8651: Fix "z#" format of PyArg_Parse*() function: the size was not
+ written if PY_SSIZE_T_CLEAN is defined.
-- Issue #8629: Disable some test_ssl tests, since they give different
- results with OpenSSL 1.0.0 and higher.
+- Issue #9756: When calling a method descriptor or a slot wrapper descriptor,
+ the check of the object type doesn't read the __class__ attribute anymore.
+ Fix a crash if a class override its __class__ attribute (e.g. a proxy of the
+ str type). Patch written by Andreas Stührk.
-- Issue #8576: Remove use of find_unused_port() in test_smtplib and
- test_multiprocessing. Patch by Paul Moore.
+- Issue #10517: After fork(), reinitialize the TLS used by the PyGILState_*
+ APIs, to avoid a crash with the pthread implementation in RHEL 5. Patch
+ by Charles-François Natali.
-- Issue #7027: regrtest.py keeps a reference to the encodings.ascii module as a
- workaround to #7140 bug
+- Issue #6780: fix starts/endswith error message to mention that tuples are
+ accepted too.
-- 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 #5057: fix a bug in the peepholer that led to non-portable pyc files
+ between narrow and wide builds while optimizing BINARY_SUBSCR on non-BMP
+ chars (e.g. u"\U00012345"[0]).
-- Issue #8193: Fix test_zlib failure with zlib 1.2.4.
+- Issue #11650: PyOS_StdioReadline() retries fgets() if it was interrupted
+ (EINTR), for example if the program is stopped with CTRL+z on Mac OS X. Patch
+ written by Charles-Francois Natali.
-Documentation
--------------
+- 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 #9255: Document that the 'test' package is for internal Python use
- only.
+- 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 #8909: Added the size of the bitmap used in the installer created by
- distutils' bdist_wininst. Patch by Anatoly Techtonik.
+- Issue #10451: memoryview objects could allow to mutate a readable buffer.
+ Initial patch by Ross Lagerwall.
+- Issue #10892: Don't segfault when trying to delete __abstractmethods__ from a
+ class.
-What's New in Python 2.6.5?
-===========================
+- 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.
-*Release date: 2010-03-18*
+- Issue #11004: Repaired edge case in deque.count().
+- Issue #8278: On Windows and with a NTFS filesystem, os.stat() and os.utime()
+ can now handle dates after 2038.
-What's New in Python 2.6.5 rc 2?
-================================
+- 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__.
-*Release date: 2010-03-09*
+- issue #11828: startswith and endswith don't accept None as slice index.
+ Patch by Torsten Becker.
-Core and Builtins
------------------
+- Issue #10674: Remove unused 'dictmaker' rule from grammar.
-- Issue #8089: a OS X framework build with --with-universal-archs=3-way|intel
- had no way to select a 32-bit executable.
+- 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 #8084: fixes build issues on OSX 10.6 when targetting OSX 10.4.
+- Issue #11386: bytearray.pop() now throws IndexError when the bytearray is
+ empty, instead of OverflowError.
Library
-------
projects / python / commitdiff