Library
-------
-- Issue #21766: Prevent a security hole in CGIHTTPServer by URL unquoting paths
- before checking for a CGI script at that path.
+ - Lax cookie parsing in http.cookies could be a security issue when combined
+ with non-standard cookie handling in some Web browsers. Reported by
+ Sergey Bobrov.
+
+- Issue #22384: An exception in Tkinter callback no longer crashes the program
+ when it is run with pythonw.exe.
-- Fix arbitrary memory access in JSONDecoder.raw_decode with a negative second
- parameter. Bug reported by Guido Vranken.
+- Issue #22168: Prevent turtle AttributeError with non-default Canvas on OS X.
-- Issue #20633: Replace relative import by absolute import.
+- Issue #21147: sqlite3 now raises an exception if the request contains a null
+ character instead of truncate it. Based on patch by Victor Stinner.
-- Issue #21082: In os.makedirs, do not set the process-wide umask. Note this
- changes behavior of makedirs when exist_ok=True.
+- Issue #21951: Fixed a crash in Tkinter on AIX when called Tcl command with
+ empty string or tuple argument.
-- Issue #20875: Prevent possible gzip "'read' is not defined" NameError.
- Patch by Claudiu Popa.
+- Issue #21951: Tkinter now most likely raises MemoryError instead of crash
+ if the memory allocation fails.
-- Issue #11599: When an external command (e.g. compiler) fails, distutils now
- prints out the whole command line (instead of just the command name) if the
- environment variable DISTUTILS_DEBUG is set.
+- Issue #22338: Fix a crash in the json module on memory allocation failure.
-- Issue #4931: distutils should not produce unhelpful "error: None" messages
- anymore. distutils.util.grok_environment_error is kept but doc-deprecated.
+- Issue #22226: First letter no longer is stripped from the "status" key in
+ the result of Treeview.heading().
-- Issue #20283: RE pattern methods now accept the string keyword parameters
- as documented. The pattern and source keyword parameters are left as
- deprecated aliases.
+- Issue #19524: Fixed resource leak in the HTTP connection when an invalid
+ response is received. Patch by Martin Panter.
-- Issue #21323: Fix http.server to again handle scripts in CGI subdirectories,
- broken by the fix for security issue #19435. Patch by Zach Byrne.
+- Issue #22051: turtledemo no longer reloads examples to re-run them.
+ Initialization of variables and gui setup should be done in main(),
+ which is called each time a demo is run, but not on import.
-Tests
------
+- Issue #21933: Turtledemo users can change the code font size with a menu
+ selection or control(command) '-' or '+' or control-mousewheel.
+ Original patch by Lita Cho.
-- Issue #17752: Fix distutils tests when run from the installed location.
+_ Issue #21597: The separator between the turtledemo text pane and the drawing
+ canvas can now be grabbed and dragged with a mouse. The code text pane can
+ be widened to easily view or copy the full width of the text. The canvas
+ can be widened on small screens. Original patches by Jan Kanis and Lita Cho.
-- Issue #20946: Correct alignment assumptions of some ctypes tests.
+- Issue #18132: Turtledemo buttons no longer disappear when the window is
+ shrunk. Original patches by Jan Kanis and Lita Cho.
-- Issue #20939: Fix test_geturl failure in test_urllibnet due to
- new redirect of http://www.python.org/ to https://www.python.org.
+- Issue #22216: smtplib now resets its state more completely after a quit. The
+ most obvious consequence of the previous behavior was a STARTTLS failure
+ during a connect/starttls/quit/connect/starttls sequence.
+- Issue #22185: Fix an occasional RuntimeError in threading.Condition.wait()
+ caused by mutation of the waiters queue without holding the lock. Patch
+ by Doug Zongker.
-What's New in Python 3.3.5?
-===========================
+- Issue #22182: Use e.args to unpack exceptions correctly in
+ distutils.file_util.move_file. Patch by Claudiu Popa.
-*Release date: 09-Mar-2014*
+- The webbrowser module now uses subprocess's start_new_session=True rather
+ than a potentially risky preexec_fn=os.setsid call.
-No changes from release candidate 2.
+- Issue #22236: Fixed Tkinter images copying operations in NoDefaultRoot mode.
+- Issue #22191: Fix warnings.__all__.
-What's New in Python 3.3.5 release candidate 2?
-===============================================
+- Issue #15696: Add a __sizeof__ implementation for mmap objects on Windows.
-*Release date: 02-Mar-2014*
+- Issue #22068: Avoided reference loops with Variables and Fonts in Tkinter.
-Core and Builtins
------------------
+- Issue #22165: SimpleHTTPRequestHandler now supports undecodable file names.
-- Issue #20731: Properly position in source code files even if they
- are opened in text mode. Patch by Serhiy Storchaka.
+- Issue #8797: Raise HTTPError on failed Basic Authentication immediately.
+ Initial patch by Sam Bull.
-- Issue #19619: str.encode, bytes.decode and bytearray.decode now use an
- internal API to throw LookupError for known non-text encodings, rather
- than attempting the encoding or decoding operation and then throwing a
- TypeError for an unexpected output type. (The latter mechanism remains
- in place for third party non-text encodings)
+- Issue #20729: Restored the use of lazy iterkeys()/itervalues()/iteritems()
+ in the mailbox module.
-Library
--------
+- Issue #21448: Changed FeedParser feed() to avoid O(N**2) behavior when
+ parsing long line. Original patch by Raymond Hettinger.
-- Issue #20778: Fix modulefinder to work with bytecode-only modules.
+- Issue #22184: The functools LRU Cache decorator factory now gives an earlier
+ and clearer error message when the user forgets the required parameters.
-- Issue #20791: copy.copy() now doesn't make a copy when the input is
- a bytes object. Initial patch by Peter Otten.
+- Issue #17923: glob() patterns ending with a slash no longer match non-dirs on
+ AIX. Based on patch by Delhallt.
-- Issue #20621: Fixes a zipimport bug introduced in 3.3.4 that could cause
- spurious crashes or SystemErrors when importing modules or packages from a
- zip file. The change causing the problem was reverted.
+- Issue #21121: Don't force 3rd party C extensions to be built with
+ -Werror=declaration-after-statement.
-- Issue #20404: io.TextIOWrapper (and hence the open() builtin) now uses the
- internal codec marking system added for issue #19619 to throw LookupError
- for known non-text encodings at stream construction time. The existing
- output type checks remain in place to deal with unmarked third party
- codecs.
+- Issue #21975: Fixed crash when using uninitialized sqlite3.Row (in particular
+ when unpickling pickled sqlite3.Row). sqlite3.Row is now initialized in the
+ __new__() method.
-Tests
------
+- Issue #21580: Now Tkinter correctly handles bytes arguments passed to Tk.
+ In particular this allows to initialize images from binary data.
-- Issue #20743: Fix a reference leak in test_tcl.
+- Issue #17172: Make turtledemo start as active on OS X even when run with
+ subprocess. Patch by Lita Cho.
-Tools/Demos
------------
+- Issue #21704: Fix build error for _multiprocessing when semaphores
+ are not available. Patch by Arfrever Frehtes Taifersar Arahesis.
-- Issue #20535: PYTHONWARNING no longer affects the run_tests.py script.
- Patch by Arfrever Frehtes Taifersar Arahesis.
+- Fix repr(_socket.socket) on Windows 64-bit: don't fail with OverflowError
+ on closed socket. repr(socket.socket) already works fine.
+- Issue #16133: The asynchat.async_chat.handle_read() method now ignores
+ BlockingIOError exceptions.
-What's New in Python 3.3.5 release candidate 1?
-===============================================
+- Issue #22044: Fixed premature DECREF in call_tzinfo_method.
+ Patch by Tom Flanagan.
-*Release date: 23-Feb-2014*
+- Issue #19884: readline: Disable the meta modifier key if stdout is not
+ a terminal to not write the ANSI sequence "\033[1034h" into stdout. This
+ sequence is used on some terminal (ex: TERM=xterm-256color") to enable
+ support of 8 bit characters.
-Core and Builtins
------------------
+- Issue #21888: plistlib's load() and loads() now work if the fmt parameter is
+ specified.
-- Issue #20588: Make Python-ast.c C89 compliant.
+- Issue #21044: tarfile.open() now handles fileobj with an integer 'name'
+ attribute. Based on patch by Antoine Pietri.
-- Issue #20437: Fixed 21 potential bugs when deleting objects references.
+- Issue #21867: Prevent turtle crash due to invalid undo buffer size.
-- Issue #20538: UTF-7 incremental decoder produced inconsistant string when
- input was truncated in BASE64 section.
+- Issue #19076: Don't pass the redundant 'file' argument to self.error().
-Library
--------
+- Issue #21942: Fixed source file viewing in pydoc's server mode on Windows.
-- Issue #20635: Fixed grid_columnconfigure() and grid_rowconfigure() methods of
- Tkinter widgets to work in wantobjects=True mode.
+- Issue #11259: asynchat.async_chat().set_terminator() now raises a ValueError
+ if the number of received bytes is negative.
-- Issue #19612: On Windows, subprocess.Popen.communicate() now ignores
- OSError(22, 'Invalid argument') when writing input data into stdin, whereas
- the process already exited.
+- Issue #12523: asynchat.async_chat.push() now raises a TypeError if it doesn't
+ get a bytes string
-- Issue #6815: os.path.expandvars() now supports non-ASCII environment
- variables names and values.
+- Issue #21707: Add missing kwonlyargcount argument to
+ ModuleFinder.replace_paths_in_code().
-- Issue #17671: Fixed a crash when use non-initialized io.BufferedRWPair.
- Based on patch by Stephen Tu.
+- Issue #20639: calling Path.with_suffix('') allows removing the suffix
+ again. Patch by July Tikhonov.
-- Issue #8478: Untokenizer.compat processes first token from iterator input.
- Patch based on lines from Georg Brandl, Eric Snow, and Gareth Rees.
+- Issue #21714: Disallow the construction of invalid paths using
+ Path.with_name(). Original patch by Antony Lee.
-- Issue #20594: Avoid name clash with the libc function posix_close.
+- Issue #21897: Fix a crash with the f_locals attribute with closure
+ variables when frame.clear() has been called.
-- Issue #19856: shutil.move() failed to move a directory to other directory
- on Windows if source name ends with os.altsep.
+- Issue #21151: Fixed a segfault in the winreg module when ``None`` is passed
+ as a ``REG_BINARY`` value to SetValueEx. Patch by John Ehresman.
-- Issue #14983: email.generator now always adds a line end after each MIME
- boundary marker, instead of doing so only when there is an epilogue. This
- fixes an RFC compliance bug and solves an issue with signed MIME parts.
+- Issue #21090: io.FileIO.readall() does not ignore I/O errors anymore. Before,
+ it ignored I/O errors if at least the first C call read() succeed.
-- Issue #20540: Fix a performance regression (vs. Python 3.2) when layering
- a multiprocessing Connection over a TCP socket. For small payloads, Nagle's
- algorithm would introduce idle delays before the entire transmission of a
- message.
+- Issue #21781: ssl.RAND_add() now supports strings longer than 2 GB.
-- Issue #16983: the new email header parsing code will now decode encoded words
- that are (incorrectly) surrounded by quotes, and register a defect.
+- Issue #11453: asyncore: emit a ResourceWarning when an unclosed file_wrapper
+ object is destroyed. The destructor now closes the file if needed. The
+ close() method can now be called twice: the second call does nothing.
-- Issue #19772: email.generator no longer mutates the message object when
- doing a down-transform from 8bit to 7bit CTEs.
+- Issue #21858: Better handling of Python exceptions in the sqlite3 module.
-- Issue #18805: the netmask/hostmask parsing in ipaddress now more reliably
- filters out illegal values and correctly allows any valid prefix length.
+- Issue #21476: Make sure the email.parser.BytesParser TextIOWrapper is
+ discarded after parsing, so the input file isn't unexpectedly closed.
-- Issue #17369: get_filename was raising an exception if the filename
- parameter's RFC2231 encoding was broken in certain ways. This was
- a regression relative to python2.
+- Issue #21729: Used the "with" statement in the dbm.dumb module to ensure
+ files closing. Patch by Claudiu Popa.
-- Issue #20013: Some imap servers disconnect if the current mailbox is
- deleted, and imaplib did not handle that case gracefully. Now it
- handles the 'bye' correctly.
+- Issue #21491: socketserver: Fix a race condition in child processes reaping.
-- Issue #19920: TarFile.list() no longer fails when outputs a listing
- containing non-encodable characters. Based on patch by Vajrasky Kok.
+- Issue #21832: Require named tuple inputs to be exact strings.
-- Issue #20515: Fix NULL pointer dereference introduced by issue #20368.
+- Issue #19145: The times argument for itertools.repeat now handles
+ negative values the same way for keyword arguments as it does for
+ positional arguments.
-- Issue #19186: Restore namespacing of expat symbols inside the pyexpat module.
+- Issue #21812: turtle.shapetransform did not tranform the turtle on the
+ first call. (Issue identified and fixed by Lita Cho.)
-- Issue #20426: When passing the re.DEBUG flag, re.compile() displays the
- debug output every time it is called, regardless of the compilation cache.
+- Issue #21635: The difflib SequenceMatcher.get_matching_blocks() method
+ cache didn't match the actual result. The former was a list of tuples
+ and the latter was a list of named tuples.
-- Issue #20368: The null character now correctly passed from Tcl to Python.
- Improved error handling in variables-related commands.
+- Issue #21722: The distutils "upload" command now exits with a non-zero
+ return code when uploading fails. Patch by Martin Dengler.
-- Issue #20435: Fix _pyio.StringIO.getvalue() to take into account newline
- translation settings.
+- Issue #21723: asyncio.Queue: support any type of number (ex: float) for the
+ maximum size. Patch written by Vajrasky Kok.
-- Issue #20288: fix handling of invalid numeric charrefs in HTMLParser.
+- Issue #21326: Add a new is_closed() method to asyncio.BaseEventLoop.
+ run_forever() and run_until_complete() methods of asyncio.BaseEventLoop now
+ raise an exception if the event loop was closed.
-- Issue #20424: Python implementation of io.StringIO now supports lone surrogates.
+- Issue #21774: Fixed NameError for an incorrect variable reference in the
+ XML Minidom code for creating processing instructions.
+ (Found and fixed by Claudiu Popa.)
-- Issue #19456: ntpath.join() now joins relative paths correctly when a drive
- is present.
+- Issue #21766: Prevent a security hole in CGIHTTPServer by URL unquoting paths
+ before checking for a CGI script at that path.
-- Issue #19077: tempfile.TemporaryDirectory cleanup is now most likely
- successful when called during nulling out of modules during shutdown.
- Misleading exception no longer raised when resource warning is emitted
- during shutdown.
+- Issue #21310: Fixed possible resource leak in failed open().
-- Issue #20367: Fix behavior of concurrent.futures.as_completed() for
- duplicate arguments. Patch by Glenn Langford.
+- Issue #21677: Fixed chaining nonnormalized exceptions in io close() methods.
-- Issue #8260: The read(), readline() and readlines() methods of
- codecs.StreamReader returned incomplete data when were called after
- readline() or read(size). Based on patch by Amaury Forgeot d'Arc.
+- Issue #11709: Fix the pydoc.help function to not fail when sys.stdin is not a
+ valid file.
-IDLE
-----
+- Issue #13223: Fix pydoc.writedoc so that the HTML documentation for methods
+ that use 'self' in the example code is generated correctly.
-- Issue #20406: Use Python application icons for Idle window title bars.
- Patch mostly by Serhiy Storchaka.
+- Issue #21463: In urllib.request, fix pruning of the FTP cache.
-- Update the python.gif icon for the Idle classbrowser and pathbowser
- from the old green snake to the new new blue and yellow snakes.
+- Issue #21618: The subprocess module could fail to close open fds that were
+ inherited by the calling process and already higher than POSIX resource
+ limits would otherwise allow. On systems with a functioning /proc/self/fd
+ or /dev/fd interface the max is now ignored and all fds are closed.
-- Issue #17721: Remove non-functional configuration dialog help button until we
- make it actually gives some help when clicked. Patch by Guilherme Simões.
+- Issue #21552: Fixed possible integer overflow of too long string lengths in
+ the tkinter module on 64-bit platforms.
-Tests
------
+- Issue #14315: The zipfile module now ignores extra fields in the central
+ directory that are too short to be parsed instead of letting a struct.unpack
+ error bubble up as this "bad data" appears in many real world zip files in
+ the wild and is ignored by other zip tools.
-- Issue #20510: Rewrote test_exit in test_sys to match existing comments,
- use modern unittest features, and use helpers from test.script_helper
- instead of using subprocess directly. Patch by Gareth Rees.
+- Issue #21402: tkinter.ttk now works when default root window is not set.
-- Issue #20532: Tests which use _testcapi are now marked as CPython only.
+- Issue #10203: sqlite3.Row now truly supports sequence protocol. In particulr
+ it supports reverse() and negative indices. Original patch by Claudiu Popa.
-- Issue #19920: Added tests for TarFile.list(). Based on patch by Vajrasky Kok.
+- Issue #18807: If copying (no symlinks) specified for a venv, then the python
+ interpreter aliases (python, python3) are now created by copying rather than
+ symlinking.
-- Issue #19990: Added tests for the imghdr module. Based on patch by
- Claudiu Popa.
+- Issue #14710: pkgutil.get_loader() no longer raises an exception when None is
+ found in sys.modules.
-- Issue #20474: Fix test_socket "unexpected success" failures on OS X 10.7+.
+- Issue #14710: pkgutil.find_loader() no longer raises an exception when a
+ module doesn't exist.
-- Issue #20605: Make test_socket getaddrinfo OS X segfault test more robust.
+- Issue #21481: Argparse equality and inequality tests now return
+ NotImplemented when comparing to an unknown type.
-Documentation
--------------
+- Issue #8743: Fix interoperability between set objects and the
+ collections.Set() abstract base class.
-- Issue #20488: Importlib is no longer *an* implementation of import, it's *the*
- implementation.
+- Issue #13355: random.triangular() no longer fails with a ZeroDivisionError
+ when low equals high.
-Build
------
+- Issue #21538: The plistlib module now supports loading of binary plist files
+ when reference or offset size is not a power of two.
-- Issue #20221: Removed conflicting (or circular) hypot definition when
- compiled with VS 2010 or above. Initial patch by Tabrez Mohammed.
+- Issue #21801: Validate that __signature__ is None or an instance of Signature.
-- Issue #20609: Restored the ability to build 64-bit Windows binaries on
- 32-bit Windows, which was broken by the change in issue #19788.
+- Issue #21923: Prevent AttributeError in distutils.sysconfig.customize_compiler
+ due to possible uninitialized _config_vars.
+- Issue #21323: Fix http.server to again handle scripts in CGI subdirectories,
+ broken by the fix for security issue #19435. Patch by Zach Byrne.
-What's New in Python 3.3.4?
-===========================
+Extension Modules
+-----------------
-*Release date: 09-Feb-2014*
+- Issue #22176: Update the ctypes module's libffi to v3.1. This release
+ adds support for the Linux AArch64 and POWERPC ELF ABIv2 little endian
+ architectures.
-Library
--------
+Build
+-----
-- Issue #20374: Fix build warnings of the readline module with libedit on Mac.
+- Issue #21958: Define HAVE_ROUND when building with Visual Studio 2013 and
+ above. Patch by Zachary Turner.
+- Issue #15759: "make suspicious", "make linkcheck" and "make doctest" in Doc/
+ now display special message when and only when there are failures.
-What's New in Python 3.3.4 release candidate 1?
-===============================================
+- Issue #17095: Fix Modules/Setup *shared* support.
-*Release date: 26-Jan-2014*
+- Issue #21811: Anticipated fixes to support OS X versions > 10.9.
-Core and Builtins
------------------
+- Issue #21166: Prevent possible segfaults and other random failures of
+ python --generate-posix-vars in pybuilddir.txt build target.
-- Issue #17825: Cursor "^" is correctly positioned for SyntaxError and
- IndentationError.
+IDLE
+----
-- Issue #2382: SyntaxError cursor "^" is now written at correct position in most
- cases when multibyte characters are in line (before "^"). This still not
- works correctly with wide East Asian characters.
+- Issue #17390: Adjust Editor window title; remove 'Python',
+ move version to end.
-- Issue #18960: The first line of Python script could be executed twice when
- the source encoding was specified on the second line. Now the source encoding
- declaration on the second line isn't effective if the first line contains
- anything except a comment. 'python -x' works now again with files with the
- source encoding declarations, and can be used to make Python batch files
- on Windows.
+- Issue #14105: Idle debugger breakpoints no longer disappear
+ when inseting or deleting lines.
-- Issue #17432: Drop UCS2 from names of Unicode functions in python3.def.
+- Issue #17172: Turtledemo can now be run from Idle.
+ Currently, the entry is on the Help menu, but it may move to Run.
+ Patch by Ramchandra Apt and Lita Cho.
-- Issue #19969: PyBytes_FromFormatV() now raises an OverflowError if "%c"
- argument is not in range [0; 255].
+- Issue #21765: Add support for non-ascii identifiers to HyperParser.
-- Issue #14432: Generator now clears the borrowed reference to the thread
- state. Fix a crash when a generator is created in a C thread that is
- destroyed while the generator is still used. The issue was that a generator
- contains a frame, and the frame kept a reference to the Python state of the
- destroyed C thread. The crash occurs when a trace function is setup.
+- Issue #21940: Add unittest for WidgetRedirector. Initial patch by Saimadhav
+ Heblikar.
-- Issue #19932: Fix typo in import.h, missing whitespaces in function prototypes.
+- Issue #18592: Add unittest for SearchDialogBase. Patch by Phil Webster.
-- Issue #19729: In str.format(), fix recursive expansion in format spec.
+- Issue #21694: Add unittest for ParenMatch. Patch by Saimadhav Heblikar.
-- Issue #19638: Fix possible crash / undefined behaviour from huge (more than 2
- billion characters) input strings in _Py_dg_strtod.
+- Issue #21686: add unittest for HyperParser. Original patch by Saimadhav
+ Heblikar.
-Library
--------
+- Issue #12387: Add missing upper(lower)case versions of default Windows key
+ bindings for Idle so Caps Lock does not disable them. Patch by Roger Serwy.
-- Issue #16042: CVE-2013-1752: smtplib: Limit amount of data read by
- limiting the call to readline(). Original patch by Christian Heimes.
+- Issue #21695: Closing a Find-in-files output window while the search is
+ still in progress no longer closes Idle.
-- Issue #20317: ExitStack.__exit__ could create a self-referential loop if an
- exception raised by a cleanup operation already had its context set
- correctly (for example, by the @contextmanager decorator). The infinite
- loop this caused is now avoided by checking if the expected context is
- already set before trying to fix it.
+- Issue #18910: Add unittest for textView. Patch by Phil Webster.
-- Issue #20374: Fix build with GNU readline >= 6.3.
+- Issue #18292: Add unittest for AutoExpand. Patch by Saihadhav Heblikar.
-- Issue #20262: Warnings are raised now when duplicate names are added in the
- ZIP file or too long ZIP file comment is truncated.
+- Issue #18409: Add unittest for AutoComplete. Patch by Phil Webster.
-- Issue #18574: Added missing newline in 100-Continue reply from
- http.server.BaseHTTPRequestHandler. Patch by Nikolaus Rath.
+Tests
+-----
-- Issue #20270: urllib.urlparse now supports empty ports.
+- Issue #22166: with the assistance of a new internal _codecs._forget_codec
+ helping function, test_codecs now clears the encoding caches to avoid the
+ appearance of a reference leak
-- Issue #20243: TarFile no longer raise ReadError when opened in write mode.
+- Issue #22236: Tkinter tests now don't reuse default root window. New root
+ window is created for every test class.
-- Issue #20238: TarFile opened with external fileobj and "w:gz" mode didn't
- write complete output on close.
+- Issue #20746: Fix test_pdb to run in refleak mode (-R). Patch by Xavier
+ de Gaye.
-- Issue #20245: The open functions in the tarfile module now correctly handle
- empty mode.
+- Issue #22060: test_ctypes has been somewhat cleaned up and simplified; it
+ now uses unittest test discovery to find its tests.
-- Issue #20242: Fixed basicConfig() format strings for the alternative
- formatting styles. Thanks to kespindler for the bug report and patch.
+- Issue #22104: regrtest.py no longer holds a reference to the suite of tests
+ loaded from test modules that don't define test_main().
-- Issue #20246: Fix buffer overflow in socket.recvfrom_into.
+- Issue #22002: Added ``load_package_tests`` function to test.support and used
+ it to implement/augment test discovery in test_asyncio, test_email,
+ test_importlib, test_json, and test_tools.
-- Issues #20206 and #5803: Fix edge case in email.quoprimime.encode where it
- truncated lines ending in a character needing encoding but no newline by
- using a more efficient algorithm that doesn't have the bug.
+- Issue #21976: Fix test_ssl to accept LibreSSL version strings. Thanks
+ to William Orr.
-- Issue #19082: Working xmlrpc.server and xmlrpc.client examples. Both in
- modules and in documentation. Initial patch contributed by Vajrasky Kok.
+- Issue #21918: Converted test_tools from a module to a package containing
+ separate test files for each tested script.
-- Issue #20138: The wsgiref.application_uri() and wsgiref.request_uri()
- functions now conform to PEP 3333 when handle non-ASCII URLs.
+- Issue #20155: Changed HTTP method names in failing tests in test_httpservers
+ so that packet filtering software (specifically Windows Base Filtering Engine)
+ does not interfere with the transaction semantics expected by the tests.
-- Issue #19097: Raise the correct Exception when cgi.FieldStorage is given an
- invalid fileobj.
+- Issue #19493: Refactored the ctypes test package to skip tests explicitly
+ rather than silently.
-- Issue #20217: Fix build in SCHED_SPORADIC is defined.
+- Issue #18492: All resources are now allowed when tests are not run by
+ regrtest.py.
-- Issue #13107: argparse and optparse no longer raises an exception when output
- a help on environment with too small COLUMNS. Based on patch by
- Elazar Gershuni.
+- Issue #21634: Fix pystone micro-benchmark: use floor division instead of true
+ division to benchmark integers instead of floating point numbers. Set pystone
+ version to 1.2. Patch written by Lennart Regebro.
-- Issue #20207: Always disable SSLv2 except when PROTOCOL_SSLv2 is explicitly
- asked for.
+- Issue #21605: Added tests for Tkinter images.
-- Issue #18960: The tokenize module now ignore the source encoding declaration
- on the second line if the first line contains anything except a comment.
+- Issue #21493: Added test for ntpath.expanduser(). Original patch by
+ Claudiu Popa.
-- Issue #20078: Reading malformed zipfiles no longer hangs with 100% CPU
- consumption.
+- Issue #19925: Added tests for the spwd module. Original patch by Vajrasky Kok.
-- Issue #20113: os.readv() and os.writev() now raise an OSError exception on
- error instead of returning -1.
+- Issue #21522: Added Tkinter tests for Listbox.itemconfigure(),
+ PanedWindow.paneconfigure(), and Menu.entryconfigure().
-- Issue #20072: Fixed multiple errors in tkinter with wantobjects is False.
+Documentation
+-------------
-- Issue #20108: Avoid parameter name clash in inspect.getcallargs().
+- Issue #21777: The binary sequence methods on bytes and bytearray are now
+ documented explicitly, rather than assuming users will be able to derive
+ the expected behaviour from the behaviour of the corresponding str methods.
-- Issue #12692: Backport the fix for ResourceWarning in test_urllib2net. This
- also helps in closing the socket when Connection Close header is not sent.
+Windows
+-------
-- Issue #19422: Explicitly disallow non-SOCK_STREAM sockets in the ssl
- module, rather than silently let them emit clear text data.
+- Issue #21671, #22160, CVE-2014-0224: The bundled version of OpenSSL has been
+ updated to 1.0.1i.
-- Issue #18116: getpass was always getting an error when testing /dev/tty,
- and thus was always falling back to stdin, and would then raise an exception
- if stdin could not be used (such as /dev/null). It also leaked an open file.
- All of these issues are now fixed.
+- Issue #10747: Use versioned labels in the Windows start menu.
+ Patch by Olive Kilburn.
-- Issue #20027: Fixed locale aliases for devanagari locales.
+Tools/Demos
+-----------
-- Issue #20067: Tkinter variables now work when wantobjects is false.
+- Issue #22201: Command-line interface of the zipfile module now correctly
+ extracts ZIP files with directory entries. Patch by Ryan Wilson.
-- Issue #19020: Tkinter now uses splitlist() instead of split() in configure
- methods.
+- Issue #21906: Make Tools/scripts/md5sum.py work in Python 3.
+ Patch by Zachary Ware.
-- Fix TypeError on "setup.py upload --show-response".
+- Issue #21629: Fix Argument Clinic's "--converters" feature.
-- Issue #12226: HTTPS is now used by default when connecting to PyPI.
-- Issue #20045: Fix "setup.py register --list-classifiers".
+What's New in Python 3.4.1?
+===========================
-- Issue #18879: When a method is looked up on a temporary file, avoid closing
- the file before the method is possibly called.
+Release date: 2014-05-18
-- Issue #20034: Updated alias mapping to most recent locale.alias file
- from X.org distribution using makelocalealias.py.
+Core and Builtins
+-----------------
-- Issue #5815: Fixed support for locales with modifiers. Fixed support for
- locale encodings with hyphens.
+- Issue #21418: Fix a crash in the builtin function super() when called without
+ argument and without current frame (ex: embedded Python).
-- Issue #20026: Fix the sqlite module to handle correctly invalid isolation
- level (wrong type).
+- Issue #21425: Fix flushing of standard streams in the interactive
+ interpreter.
-- Issue #18829: csv.Dialect() now checks type for delimiter, escapechar and
- quotechar fields. Original patch by Vajrasky Kok.
+- Issue #21435: In rare cases, when running finalizers on objects in cyclic
+ trash a bad pointer dereference could occur due to a subtle flaw in
+ internal iteration logic.
-- Issue #19855: uuid.getnode() on Unix now looks on the PATH for the
- executables used to find the mac address, with /sbin and /usr/sbin as
- fallbacks.
+Library
+-------
-- Issue #20007: HTTPResponse.read(0) no more prematurely closes connection.
- Original patch by Simon Sapin.
+- Issue #10744: Fix PEP 3118 format strings on ctypes objects with a nontrivial
+ shape.
-- Issue #19912: Fixed numerous bugs in ntpath.splitunc().
+- Issue #20998: Fixed re.fullmatch() of repeated single character pattern
+ with ignore case. Original patch by Matthew Barnett.
-- Issue #19911: ntpath.splitdrive() now correctly processes the 'İ' character
- (U+0130, LATIN CAPITAL LETTER I WITH DOT ABOVE).
+- Issue #21075: fileinput.FileInput now reads bytes from standard stream if
+ binary mode is specified. Patch by Sam Kimbrel.
-- Issue #19532: python -m compileall with no filename/directory arguments now
- respects the -f and -q flags instead of ignoring them.
+- Issue #21396: Fix TextIOWrapper(..., write_through=True) to not force a
+ flush() on the underlying binary stream. Patch by akira.
-- Issue #19623: Fixed writing to unseekable files in the aifc module.
+- Issue #21470: Do a better job seeding the random number generator by
+ using enough bytes to span the full state space of the Mersenne Twister.
-- Issue #17919: select.poll.register() again works with poll.POLLNVAL on AIX.
- Fixed integer overflow in the eventmask parameter.
+- Issue #21398: Fix an unicode error in the pydoc pager when the documentation
+ contains characters not encodable to the stdout encoding.
-- Issue #19063: if a Charset's body_encoding was set to None, the email
- package would generate a message claiming the Content-Transfer-Encoding
- was 7bit, and produce garbage output for the content. This now works.
- A couple of other set_payload mishandlings of non-ASCII are also fixed.
-
-- Issue #17200: telnetlib's read_until and expect timeout was broken by the
- fix to Issue #14635 in Python 3.3.0 to be interpreted as milliseconds
- instead of seconds when the platform supports select.poll (ie: everywhere).
- It is now treated as seconds once again.
-
-- Issue #17429: platform.linux_distribution() now decodes files from the UTF-8
- encoding with the surrogateescape error handler, instead of decoding from the
- locale encoding in strict mode. It fixes the function on Fedora 19 which is
- probably the first major distribution release with a non-ASCII name. Patch
- written by Toshio Kuratomi.
-
-- Issue #19929: Call os.read with 32768 within subprocess.Popen.communicate
- rather than 4096 for efficiency. A microbenchmark shows Linux and OS X
- both using ~50% less cpu time this way.
-
-- Issue #19506: Use a memoryview to avoid a data copy when piping data
- to stdin within subprocess.Popen.communicate. 5-10% less cpu usage.
+Tests
+-----
-- Issue #19839: Fix regression in bz2 module's handling of non-bzip2 data at
- EOF, and analogous bug in lzma module.
+- Issue #17756: Fix test_code test when run from the installed location.
-- Issue #19138: doctest's IGNORE_EXCEPTION_DETAIL now allows a match when
- no exception detail exists (no colon following the exception's name, or
- a colon does follow but no text follows the colon).
+- Issue #17752: Fix distutils tests when run from the installed location.
-- Issue #19834: Support unpickling of exceptions pickled by Python 2.
+IDLE
+----
-- Issue #15798: Fixed subprocess.Popen() to no longer fail if file
- descriptor 0, 1 or 2 is closed.
+- Issue #18104: Add idlelib/idle_test/htest.py with a few sample tests to begin
+ consolidating and improving human-validated tests of Idle. Change other files
+ as needed to work with htest. Running the module as __main__ runs all tests.
-- Issue #19088: Fixed incorrect caching of the copyreg module in
- object.__reduce__() and object.__reduce_ex__().
-- Fixed _pickle.Unpickler to not fail when loading empty strings as
- persistent IDs.
+What's New in Python 3.4.1rc1?
+==============================
-- Issue #11480: Fixed copy.copy to work with classes with custom metaclasses.
- Patch by Daniel Urban.
+Release date: 2014-05-05
-- Issue #6477: Added support for pickling the types of built-in singletons
- (i.e., Ellipsis, NotImplemented, None).
+Core and Builtins
+-----------------
-- Issue #11508: Fixed uuid.getnode() and uuid.uuid1() on environment with
- virtual interface. Original patch by Kent Frazier.
+- Issue #21274: Define PATH_MAX for GNU/Hurd in Python/pythonrun.c.
-- Issue #11489: JSON decoder now accepts lone surrogates.
+- Issue #21209: Fix sending tuples to custom generator objects with the yield
+ from syntax.
-- Issue #19545: Avoid chained exceptions while passing stray % to
- time.strptime(). Initial patch by Claudiu Popa.
+- Issue #21134: Fix segfault when str is called on an uninitialized
+ UnicodeEncodeError, UnicodeDecodeError, or UnicodeTranslateError object.
-- Issue #19633: Fixed writing not compressed 16- and 32-bit wave files on
- big-endian platforms.
+- Issue #19537: Fix PyUnicode_DATA() alignment under m68k. Patch by
+ Andreas Schwab.
-- Issue #19449: in csv's writerow, handle non-string keys when generating the
- error message that certain keys are not in the 'fieldnames' list.
+- Issue #20929: Add a type cast to avoid shifting a negative number.
-- Fix test.support.bind_port() to not cause an error when Python was compiled
- on a system with SO_REUSEPORT defined in the headers but run on a system
- with an OS kernel that does not support that reasonably new socket option.
+- Issue #20731: Properly position in source code files even if they
+ are opened in text mode. Patch by Serhiy Storchaka.
-- Fix compilation error under gcc of the ctypes module bundled libffi for arm.
+- Issue #20637: Key-sharing now also works for instance dictionaries of
+ subclasses. Patch by Peter Ingebretson.
-- Issue #19523: Closed FileHandler leak which occurred when delay was set.
+- Issue #12546: Allow \x00 to be used as a fill character when using str, int,
+ float, and complex __format__ methods.
-- Issue #13674: Prevented time.strftime from crashing on Windows when given
- a year before 1900 and a format of %y.
+- Issue #13598: Modify string.Formatter to support auto-numbering of
+ replacement fields. It now matches the behavior of str.format() in
+ this regard. Patches by Phil Elson and Ramchandra Apte.
-- Issue #19544 and Issue #6286: Restore use of urllib over http allowing use
- of http_proxy for Distutils upload command, a feature accidentally lost
- in the rollback of distutils2.
+Library
+-------
-- Issue #19544 and Issue #7457: Restore the read_pkg_file method to
- distutils.dist.DistributionMetadata accidentally removed in the undo of
- distutils2.
+- Issue #21088: Bugfix for curses.window.addch() regression in 3.4.0.
+ In porting to Argument Clinic, the first two arguments were reversed.
-- Issue #1575020: Fixed support of 24-bit wave files on big-endian platforms.
+- Issue #21469: Reduced the risk of false positives in robotparser by
+ checking to make sure that robots.txt has been read or does not exist
+ prior to returning True in can_fetch().
-- Issue #19480: HTMLParser now accepts all valid start-tag names as defined
- by the HTML5 standard.
+- Issue #21321: itertools.islice() now releases the reference to the source
+ iterator when the slice is exhausted. Patch by Anton Afanasyev.
-- Issue #6157: Fixed tkinter.Text.debug(). Original patch by Guilherme Polo.
+- Issue #9815: assertRaises now tries to clear references to local variables
+ in the exception's traceback.
-- Issue #6160: The bbox() method of tkinter.Spinbox now returns a tuple of
- integers instead of a string. Based on patch by Guilherme Polo.
+- Issue #13204: Calling sys.flags.__new__ would crash the interpreter,
+ now it raises a TypeError.
-- Issue #10197: Rework subprocess.get[status]output to use subprocess
- functionality and thus to work on Windows. Patch by Nick Coghlan.
+- Issue #19385: Make operations on a closed dbm.dumb database always raise the
+ same exception.
-- Issue #19286: Directories in ``package_data`` are no longer added to
- the filelist, preventing failure outlined in the ticket.
+- Issue #21207: Detect when the os.urandom cached fd has been closed or
+ replaced, and open it anew.
-IDLE
-----
+- Issue #21291: subprocess's Popen.wait() is now thread safe so that
+ multiple threads may be calling wait() or poll() on a Popen instance
+ at the same time without losing the Popen.returncode value.
-- Issue #17390: Add Python version to Idle editor window title bar.
- Original patches by Edmond Burnett and Kent Johnson.
+- Issue #21127: Path objects can now be instantiated from str subclass
+ instances (such as ``numpy.str_``).
-- Issue #18960: IDLE now ignores the source encoding declaration on the second
- line if the first line contains anything except a comment.
+- Issue #15002: urllib.response object to use _TemporaryFileWrapper (and
+ _TemporaryFileCloser) facility. Provides a better way to handle file
+ descriptor close. Patch contributed by Christian Theune.
-- Issue #20058: sys.stdin.readline() in IDLE now always returns only one line.
+- Issue #12220: mindom now raises a custom ValueError indicating it doesn't
+ support spaces in URIs instead of letting a 'split' ValueError bubble up.
-- Issue #19481: print() of string subclass instance in IDLE no longer hangs.
+- Issue #21239: patch.stopall() didn't work deterministically when the same
+ name was patched more than once.
-- Issue #18270: Prevent possible IDLE AttributeError on OS X when no initial
- shell window is present.
+- Issue #21222: Passing name keyword argument to mock.create_autospec now
+ works.
-Tests
------
+- Issue #21197: Add lib64 -> lib symlink in venvs on 64-bit non-OS X POSIX.
-- Issue #19804: The test_find_mac test in test_uuid is now skipped if the
- ifconfig executable is not available.
+- Issue #17498: Some SMTP servers disconnect after certain errors, violating
+ strict RFC conformance. Instead of losing the error code when we issue the
+ subsequent RSET, smtplib now returns the error code and defers raising the
+ SMTPServerDisconnected error until the next command is issued.
-- Issue #19886: Use better estimated memory requirements for bigmem tests.
+- Issue #17826: setting an iterable side_effect on a mock function created by
+ create_autospec now works. Patch by Kushal Das.
-- Issue #20055: Fix test_shutil under Windows with symlink privileges held.
- Patch by Vajrasky Kok.
+- Issue #7776: Fix ``Host:`` header and reconnection when using
+ http.client.HTTPConnection.set_tunnel(). Patch by Nikolaus Rath.
-- Issue #19938: Re-enabled test_bug_1333982 in test_dis, which had been
- disabled since 3.0 due to the changes in listcomp handling.
+- Issue #20968: unittest.mock.MagicMock now supports division.
+ Patch by Johannes Baiter.
-- Issue #19320: test_tcl no longer fails when wantobjects is false.
+- Fix arbitrary memory access in JSONDecoder.raw_decode with a negative second
+ parameter. Bug reported by Guido Vranken.
-- Issue #19683: Removed empty tests from test_minidom. Patch by Ajitesh Gupta.
+- Issue #21169: getpass now handles non-ascii characters that the
+ input stream encoding cannot encode by re-encoding using the
+ replace error handler.
-- Issue #19919: Fix flaky SSL test. connect_ex() sometimes returns
- EWOULDBLOCK on Windows or VMs hosted on Windows.
+- Issue #21171: Fixed undocumented filter API of the rot13 codec.
+ Patch by Berker Peksag.
-- Issue #19912: Added tests for ntpath.splitunc().
+- Issue #21172: isinstance check relaxed from dict to collections.Mapping.
-- Issue #19828: Fixed test_site when the whole suite is run with -S.
+- Issue #21155: asyncio.EventLoop.create_unix_server() now raises a ValueError
+ if path and sock are specified at the same time.
-- Issue #19928: Implemented a test for repr() of cell objects.
+- Issue #21149: Improved thread-safety in logging cleanup during interpreter
+ shutdown. Thanks to Devin Jeanpierre for the patch.
-- Issue #19535: Fixed test_docxmlrpc when python is run with -OO.
+- Issue #20145: `assertRaisesRegex` and `assertWarnsRegex` now raise a
+ TypeError if the second argument is not a string or compiled regex.
-- Issue #19926: Removed unneeded test_main from test_abstract_numbers.
- Patch by Vajrasky Kok.
+- Issue #21058: Fix a leak of file descriptor in
+ :func:`tempfile.NamedTemporaryFile`, close the file descriptor if
+ :func:`io.open` fails
-- Issue #19595, #19987: Re-enabled a long-disabled test in test_winsound.
+- Issue #21200: Return None from pkgutil.get_loader() when __spec__ is missing.
-- Issue #19588: Fixed tests in test_random that were silently skipped most
- of the time. Patch by Julian Gindi.
+- Issue #21013: Enhance ssl.create_default_context() when used for server side
+ sockets to provide better security by default.
-- Issue #19596: Set untestable tests in test_importlib to None to avoid
- reporting success on empty tests.
+- Issue #20633: Replace relative import by absolute import.
-- Issue #19440: Clean up test_capi by removing an unnecessary __future__
- import, converting from test_main to unittest.main, and running the
- _testcapi module tests within a unittest TestCase.
+- Issue #20980: Stop wrapping exception when using ThreadPool.
-- Issue #18702, 19572: All skipped tests now reported as skipped.
+- Issue #21082: In os.makedirs, do not set the process-wide umask. Note this
+ changes behavior of makedirs when exist_ok=True.
-- Issue #19085: Added basic tests for all tkinter widget options.
+- Issue #20990: Fix issues found by pyflakes for multiprocessing.
-Documentation
--------------
+- Issue #21015: SSL contexts will now automatically select an elliptic
+ curve for ECDH key exchange on OpenSSL 1.0.2 and later, and otherwise
+ default to "prime256v1".
-- Issue #20265: Updated some parts of the Using Windows document.
+- Issue #20995: Enhance default ciphers used by the ssl module to enable
+ better security an prioritize perfect forward secrecy.
-- Issue #20266: Updated some parts of the Windows FAQ.
+- Issue #20884: Don't assume that __file__ is defined on importlib.__init__.
-- Issue #20255: Updated the about and bugs pages.
+- Issue #21499: Ignore __builtins__ in several test_importlib.test_api tests.
-- Issue #20253: Fixed a typo in the ipaddress docs that advertised an
- illegal attribute name. Found by INADA Naoki.
+- Issue #20879: Delay the initialization of encoding and decoding tables for
+ base32, ascii85 and base85 codecs in the base64 module, and delay the
+ initialization of the unquote_to_bytes() table of the urllib.parse module, to
+ not waste memory if these modules are not used.
-- Issue #19963: Document that importlib.import_module() no longer requires
- importing parent packages separately.
+- Issue #19157: Include the broadcast address in the usuable hosts for IPv6
+ in ipaddress.
-- Issue #18840: Introduce the json module in the tutorial, and de-emphasize
- the pickle module.
+- Issue #11599: When an external command (e.g. compiler) fails, distutils now
+ prints out the whole command line (instead of just the command name) if the
+ environment variable DISTUTILS_DEBUG is set.
-- Issue #19845: Updated the Compiling Python on Windows section.
+- Issue #4931: distutils should not produce unhelpful "error: None" messages
+ anymore. distutils.util.grok_environment_error is kept but doc-deprecated.
-- Issue #19795: Improved markup of True/False constants.
+- Issue #20875: Prevent possible gzip "'read' is not defined" NameError.
+ Patch by Claudiu Popa.
-- Issue #18326: Clarify that list.sort's arguments are keyword-only. Also,
- attempt to reduce confusion in the glossary by not saying there are
- different "types" of arguments and parameters.
+- Issue #11558: ``email.message.Message.attach`` now returns a more
+ useful error message if ``attach`` is called on a message for which
+ ``is_multipart`` is False.
-Build
------
+- Issue #20283: RE pattern methods now accept the string keyword parameters
+ as documented. The pattern and source keyword parameters are left as
+ deprecated aliases.
-- Issue #19788: kill_python(_d).exe is now run as a PreBuildEvent on the
- pythoncore sub-project. This should prevent build errors due a previous
- build's python(_d).exe still running.
+- Issue #20778: Fix modulefinder to work with bytecode-only modules.
-- Add workaround for VS 2010 nmake clean issue. VS 2010 doesn't set up PATH
- for nmake.exe correctly.
+- Issue #20791: copy.copy() now doesn't make a copy when the input is
+ a bytes object. Initial patch by Peter Otten.
-Tools/Demos
------------
+- Issue #19748: On AIX, time.mktime() now raises an OverflowError for year
+ outsize range [1902; 2037].
-- Issue #19936: Added executable bits or shebang lines to Python scripts which
- requires them. Disable executable bits and shebang lines in test and
- benchmark files in order to prevent using a random system python, and in
- source files of modules which don't provide command line interface. Fixed
- shebang line to use python3 executable in the unittestgui script.
+- Issue #20816: Fix inspect.getcallargs() to raise correct TypeError for
+ missing keyword-only arguments. Patch by Jeremiah Lowin.
-- Issue #18960: 2to3 and the findnocoding.py script now ignore the source
- encoding declaration on the second line if the first line contains anything
- except a comment.
+- Issue #20817: Fix inspect.getcallargs() to fail correctly if more
+ than 3 arguments are missing. Patch by Jeremiah Lowin.
+- Issue #6676: Ensure a meaningful exception is raised when attempting
+ to parse more than one XML document per pyexpat xmlparser instance.
+ (Original patches by Hirokazu Yamamoto and Amaury Forgeot d'Arc, with
+ suggested wording by David Gutteridge)
-What's New in Python 3.3.3?
-===========================
+- Issue #21117: Fix inspect.signature to better support functools.partial.
+ Due to the specifics of functools.partial implementation,
+ positional-or-keyword arguments passed as keyword arguments become
+ keyword-only.
-*Release date: 17-Nov-2013*
+- Issue #21209: Fix asyncio.tasks.CoroWrapper to workaround a bug
+ in yield-from implementation in CPythons prior to 3.4.1.
-No changes from release candidate 2.
+- asyncio: Add gi_{frame,running,code} properties to CoroWrapper
+ (upstream issue #163).
+- Issue #21311: Avoid exception in _osx_support with non-standard compiler
+ configurations. Patch by John Szakmeister.
-What's New in Python 3.3.3 release candidate 2?
-===============================================
+- Issue #11571: Ensure that the turtle window becomes the topmost window
+ when launched on OS X.
-*Release date: 11-Nov-2013*
+Extension Modules
+-----------------
-Library
--------
+- Issue #21276: posixmodule: Don't define USE_XATTRS on KFreeBSD and the Hurd.
+- Issue #21226: Set up modules properly in PyImport_ExecCodeModuleObject
+ (and friends).
-- Issue #19227: Any re-seeding of the OpenSSL RNG on fork has been removed;
- this should be handled by OpenSSL itself or by the application.
+IDLE
+----
-- Issue #19435: Fix directory traversal attack on CGIHttpRequestHandler.
+- Issue #21139: Change default paragraph width to 72, the PEP 8 recommendation.
-Tests
------
+- Issue #21284: Paragraph reformat test passes after user changes reformat width.
-- Issue #18964: Fix test_tcl when run with Tcl/Tk versions < 8.5.
+- Issue #17654: Ensure IDLE menus are customized properly on OS X for
+ non-framework builds and for all variants of Tk.
Build
-----
projects / python / commitdiff