Tools/Demos
-----------
-- Issue #22314: pydoc now works when the LINES environment variable is set.
-
-Windows
--------
++<<<<<<< local
+- Issue #24000: Improved Argument Clinic's mapping of converters to legacy
+ "format units". Updated the documentation to match.
-- Issue #17896: The Windows build scripts now expect external library sources
- to be in ``PCbuild\..\externals`` rather than ``PCbuild\..\..``.
+- Issue #24001: Argument Clinic converters now use accept={type}
+ instead of types={'type'} to specify the types the converter accepts.
-- Issue #17717: The Windows build scripts now use a copy of NASM pulled from
- svn.python.org to build OpenSSL.
++=======
++- Issue #25440: Fix output of python-config --extension-suffix.
+
-- Issue #22644: The bundled version of OpenSSL has been updated to 1.0.1j.
++>>>>>>> other
+- Issue #23330: h2py now supports arbitrary filenames in #include.
+- Issue #24031: make patchcheck now supports git checkouts, too.
-What's New in Python 3.4.2?
-===========================
-Release date: 2014-10-06
+What's New in Python 3.5.0 alpha 4?
+===================================
-Library
--------
+Release date: 2015-04-19
-- Issue #10510: distutils register and upload methods now use HTML standards
- compliant CRLF line endings.
+Core and Builtins
+-----------------
-- Issue #9850: Fixed macpath.join() for empty first component. Patch by
- Oleg Oshmyan.
+- Issue #22980: Under Linux, GNU/KFreeBSD and the Hurd, C extensions now include
+ the architecture triplet in the extension name, to make it easy to test builds
+ for different ABIs in the same working tree. Under OS X, the extension name
+ now includes PEP 3149-style information.
-- Issue #22427: TemporaryDirectory no longer attempts to clean up twice when
- used in the with statement in generator.
+- Issue #22631: Added Linux-specific socket constant CAN_RAW_FD_FRAMES.
+ Patch courtesy of Joe Jevnik.
-- Issue #20912: Now directories added to ZIP file have correct Unix and MS-DOS
- directory attributes.
+- Issue #23731: Implement PEP 488: removal of .pyo files.
-- Issue #21866: ZipFile.close() no longer writes ZIP64 central directory
- records if allowZip64 is false.
+- Issue #23726: Don't enable GC for user subclasses of non-GC types that
+ don't add any new fields. Patch by Eugene Toder.
-- Issue #22415: Fixed debugging output of the GROUPREF_EXISTS opcode in the re
- module. Removed trailing spaces in debugging output.
+- Issue #23309: Avoid a deadlock at shutdown if a daemon thread is aborted
+ while it is holding a lock to a buffered I/O object, and the main thread
+ tries to use the same I/O object (typically stdout or stderr). A fatal
+ error is emitted instead.
-- Issue #22423: Unhandled exception in thread no longer causes unhandled
- AttributeError when sys.stderr is None.
+- Issue #22977: Fixed formatting Windows error messages on Wine.
+ Patch by Martin Panter.
-- Issue #21332: Ensure that ``bufsize=1`` in subprocess.Popen() selects
- line buffering, rather than block buffering. Patch by Akira Li.
+- Issue #23466: %c, %o, %x, and %X in bytes formatting now raise TypeError on
+ non-integer input.
+- Issue #24044: Fix possible null pointer dereference in list.sort in out of
+ memory conditions.
-What's New in Python 3.4.2rc1?
-==============================
+- Issue #21354: PyCFunction_New function is exposed by python DLL again.
-Release date: 2014-09-22
+Library
+-------
-Core and Builtins
------------------
+- Issue #23840: tokenize.open() now closes the temporary binary file on error
+ to fix a resource warning.
-- Issue #22258: Fix the the internal function set_inheritable() on Illumos.
- This platform exposes the function ``ioctl(FIOCLEX)``, but calling it fails
- with errno is ENOTTY: "Inappropriate ioctl for device". set_inheritable()
- now falls back to the slower ``fcntl()`` (``F_GETFD`` and then ``F_SETFD``).
+- Issue #16914: new debuglevel 2 in smtplib adds timestamps to debug output.
-- Issue #21669: With the aid of heuristics in SyntaxError.__init__, the
- parser now attempts to generate more meaningful (or at least more search
- engine friendly) error messages when "exec" and "print" are used as
- statements.
+- Issue #7159: urllib.request now supports sending auth credentials
+ automatically after the first 401. This enhancement is a superset of the
+ enhancement from issue #19494 and supersedes that change.
-- Issue #21642: In the conditional if-else expression, allow an integer written
- with no space between itself and the ``else`` keyword (e.g. ``True if 42else
- False``) to be valid syntax.
+- Issue #23703: Fix a regression in urljoin() introduced in 901e4e52b20a.
+ Patch by Demian Brecht.
-- Issue #21523: Fix over-pessimistic computation of the stack effect of
- some opcodes in the compiler. This also fixes a quadratic compilation
- time issue noticeable when compiling code with a large number of "and"
- and "or" operators.
+- Issue #4254: Adds _curses.update_lines_cols() Patch by Arnon Yaari
-Library
--------
+- Issue #19933: Provide default argument for ndigits in round. Patch by
+ Vajrasky Kok.
-- Issue #21091: Fix API bug: email.message.EmailMessage.is_attachment is now
- a method. Since EmailMessage is provisional, we can change the API in a
- maintenance release, but we use a trick to remain backward compatible with
- 3.4.0/1.
+- Issue #23193: Add a numeric_owner parameter to
+ tarfile.TarFile.extract and tarfile.TarFile.extractall. Patch by
+ Michael Vogt and Eric Smith.
-- Issue #21079: Fix email.message.EmailMessage.is_attachment to return the
- correct result when the header has parameters as well as a value.
+- Issue #23342: Add a subprocess.run() function than returns a CalledProcess
+ instance for a more consistent API than the existing call* functions.
-- Issue #22247: Add NNTPError to nntplib.__all__.
+- Issue #21217: inspect.getsourcelines() now tries to compute the start and end
+ lines from the code object, fixing an issue when a lambda function is used as
+ decorator argument. Patch by Thomas Ballinger and Allison Kaptur.
-- Issue #4180: The warnings registries are now reset when the filters
- are modified.
+- Issue #24521: Fix possible integer overflows in the pickle module.
-- Issue #22419: Limit the length of incoming HTTP request in wsgiref server to
- 65536 bytes and send a 414 error code for higher lengths. Patch contributed
- by Devin Cook.
+- Issue #22931: Allow '[' and ']' in cookie values.
-- 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.
+- The keywords attribute of functools.partial is now always a dictionary.
-- Issue #22384: An exception in Tkinter callback no longer crashes the program
- when it is run with pythonw.exe.
+- Issue #23811: Add missing newline to the PyCompileError error message.
+ Patch by Alex Shkop.
-- Issue #22168: Prevent turtle AttributeError with non-default Canvas on OS X.
+- Issue #21116: Avoid blowing memory when allocating a multiprocessing shared
+ array that's larger than 50% of the available RAM. Patch by Médéric Boquien.
-- 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 #22982: Improve BOM handling when seeking to multiple positions of
+ a writable text file.
-- Issue #21951: Fixed a crash in Tkinter on AIX when called Tcl command with
- empty string or tuple argument.
+- Issue #23464: Removed deprecated asyncio JoinableQueue.
-- Issue #21951: Tkinter now most likely raises MemoryError instead of crash
- if the memory allocation fails.
+- Issue #23529: Limit the size of decompressed data when reading from
+ GzipFile, BZ2File or LZMAFile. This defeats denial of service attacks
+ using compressed bombs (i.e. compressed payloads which decompress to a huge
+ size). Patch by Martin Panter and Nikolaus Rath.
-- Issue #22338: Fix a crash in the json module on memory allocation failure.
+- Issue #21859: Added Python implementation of io.FileIO.
-- Issue #22226: First letter no longer is stripped from the "status" key in
- the result of Treeview.heading().
-
-- Issue #19524: Fixed resource leak in the HTTP connection when an invalid
- response is received. Patch by Martin Panter.
-
-- 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.
+- Issue #23865: close() methods in multiple modules now are idempotent and more
+ robust at shutdown. If they need to release multiple resources, all are
+ released even if errors occur.
-- 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 #23400: Raise same exception on both Python 2 and 3 if sem_open is not
+ available. Patch by Davin Potts.
-- 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 #10838: The subprocess now module includes SubprocessError and
+ TimeoutError in its list of exported names for the users wild enough
+ to use ``from subprocess import *``.
-- Issue #18132: Turtledemo buttons no longer disappear when the window is
- shrunk. Original patches by Jan Kanis and Lita Cho.
+- Issue #23411: Added DefragResult, ParseResult, SplitResult, DefragResultBytes,
+ ParseResultBytes, and SplitResultBytes to urllib.parse.__all__.
+ Patch by Martin Panter.
-- 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 #23881: urllib.request.ftpwrapper constructor now closes the socket if
+ the FTP connection failed to fix a ResourceWarning.
-- 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.
+- Issue #23853: :meth:`socket.socket.sendall` does no more reset the socket
+ timeout each time data is sent successfuly. The socket timeout is now the
+ maximum total duration to send all data.
-- Issue #22182: Use e.args to unpack exceptions correctly in
- distutils.file_util.move_file. Patch by Claudiu Popa.
+- Issue #22721: An order of multiline pprint output of set or dict containing
+ orderable and non-orderable elements no longer depends on iteration order of
+ set or dict.
-- The webbrowser module now uses subprocess's start_new_session=True rather
- than a potentially risky preexec_fn=os.setsid call.
+- Issue #15133: _tkinter.tkapp.getboolean() now supports Tcl_Obj and always
+ returns bool. tkinter.BooleanVar now validates input values (accepted bool,
+ int, str, and Tcl_Obj). tkinter.BooleanVar.get() now always returns bool.
-- Issue #22236: Fixed Tkinter images copying operations in NoDefaultRoot mode.
+- Issue #10590: xml.sax.parseString() now supports string argument.
-- Issue #22191: Fix warnings.__all__.
+- Issue #23338: Fixed formatting ctypes error messages on Cygwin.
+ Patch by Makoto Kato.
-- Issue #15696: Add a __sizeof__ implementation for mmap objects on Windows.
+- Issue #15582: inspect.getdoc() now follows inheritance chains.
-- Issue #22068: Avoided reference loops with Variables and Fonts in Tkinter.
+- Issue #2175: SAX parsers now support a character stream of InputSource object.
-- Issue #22165: SimpleHTTPRequestHandler now supports undecodable file names.
+- Issue #16840: Tkinter now supports 64-bit integers added in Tcl 8.4 and
+ arbitrary precision integers added in Tcl 8.5.
-- Issue #8797: Raise HTTPError on failed Basic Authentication immediately.
- Initial patch by Sam Bull.
+- Issue #23834: Fix socket.sendto(), use the C Py_ssize_t type to store the
+ result of sendto() instead of the C int type.
-- Issue #20729: Restored the use of lazy iterkeys()/itervalues()/iteritems()
- in the mailbox module.
+- Issue #23618: :meth:`socket.socket.connect` now waits until the connection
+ completes instead of raising :exc:`InterruptedError` if the connection is
+ interrupted by signals, signal handlers don't raise an exception and the
+ socket is blocking or has a timeout. :meth:`socket.socket.connect` still
+ raise :exc:`InterruptedError` for non-blocking sockets.
-- Issue #21448: Changed FeedParser feed() to avoid O(N**2) behavior when
- parsing long line. Original patch by Raymond Hettinger.
+- Issue #21526: Tkinter now supports new boolean type in Tcl 8.5.
-- Issue #22184: The functools LRU Cache decorator factory now gives an earlier
- and clearer error message when the user forgets the required parameters.
+- Issue #23836: Fix the faulthandler module to handle reentrant calls to
+ its signal handlers.
-- Issue #17923: glob() patterns ending with a slash no longer match non-dirs on
- AIX. Based on patch by Delhallt.
+- Issue #23838: linecache now clears the cache and returns an empty result on
+ MemoryError.
-- Issue #21121: Don't force 3rd party C extensions to be built with
- -Werror=declaration-after-statement.
+- Issue #10395: Added os.path.commonpath(). Implemented in posixpath and ntpath.
+ Based on patch by Rafik Draoui.
-- 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.
+- Issue #23611: Serializing more "lookupable" objects (such as unbound methods
+ or nested classes) now are supported with pickle protocols < 4.
-- Issue #21580: Now Tkinter correctly handles bytes arguments passed to Tk.
- In particular this allows to initialize images from binary data.
+- Issue #13583: sqlite3.Row now supports slice indexing.
-- Issue #17172: Make turtledemo start as active on OS X even when run with
- subprocess. Patch by Lita Cho.
+- Issue #18473: Fixed 2to3 and 3to2 compatible pickle mappings. Fixed
+ ambigious reverse mappings. Added many new mappings. Import mapping is no
+ longer applied to modules already mapped with full name mapping.
-- Issue #21704: Fix build error for _multiprocessing when semaphores
- are not available. Patch by Arfrever Frehtes Taifersar Arahesis.
+- Issue #23485: select.select() is now retried automatically with the
+ recomputed timeout when interrupted by a signal, except if the signal handler
+ raises an exception. This change is part of the PEP 475.
-- Fix repr(_socket.socket) on Windows 64-bit: don't fail with OverflowError
- on closed socket. repr(socket.socket) already works fine.
+- Issue #23752: When built from an existing file descriptor, io.FileIO() now
+ only calls fstat() once. Before fstat() was called twice, which was not
+ necessary.
-- Issue #16133: The asynchat.async_chat.handle_read() method now ignores
- BlockingIOError exceptions.
+- Issue #23704: collections.deque() objects now support __add__, __mul__, and
+ __imul__().
-- Issue #22044: Fixed premature DECREF in call_tzinfo_method.
- Patch by Tom Flanagan.
+- Issue #23171: csv.Writer.writerow() now supports arbitrary iterables.
-- 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.
+- Issue #23745: The new email header parser now handles duplicate MIME
+ parameter names without error, similar to how get_param behaves.
-- Issue #21888: plistlib's load() and loads() now work if the fmt parameter is
- specified.
+- Issue #22117: Fix os.utime(), it now rounds the timestamp towards minus
+ infinity (-inf) instead of rounding towards zero.
-- Issue #21044: tarfile.open() now handles fileobj with an integer 'name'
- attribute. Based on patch by Antoine Pietri.
+- Issue #23310: Fix MagicMock's initializer to work with __methods__, just
+ like configure_mock(). Patch by Kasia Jachim.
-- Issue #21867: Prevent turtle crash due to invalid undo buffer size.
+Build
+-----
-- Issue #19076: Don't pass the redundant 'file' argument to self.error().
+- Issue #23817: FreeBSD now uses "1.0" the the SOVERSION as other operating
+ systems, instead of just "1".
-- Issue #21942: Fixed source file viewing in pydoc's server mode on Windows.
+- Issue #23501: Argument Clinic now generates code into separate files by default.
-- Issue #11259: asynchat.async_chat().set_terminator() now raises a ValueError
- if the number of received bytes is negative.
+Tests
+-----
-- Issue #12523: asynchat.async_chat.push() now raises a TypeError if it doesn't
- get a bytes string
+- Issue #23799: Added test.support.start_threads() for running and
+ cleaning up multiple threads.
-- Issue #21707: Add missing kwonlyargcount argument to
- ModuleFinder.replace_paths_in_code().
+- Issue #22390: test.regrtest now emits a warning if temporary files or
+ directories are left after running a test.
-- Issue #20639: calling Path.with_suffix('') allows removing the suffix
- again. Patch by July Tikhonov.
+Tools/Demos
+-----------
-- Issue #21714: Disallow the construction of invalid paths using
- Path.with_name(). Original patch by Antony Lee.
+- Issue #18128: pygettext now uses standard +NNNN format in the
+ POT-Creation-Date header.
-- Issue #21897: Fix a crash with the f_locals attribute with closure
- variables when frame.clear() has been called.
+- Issue #23935: Argument Clinic's understanding of format units
+ accepting bytes, bytearrays, and buffers is now consistent with
+ both the documentation and the implementation.
-- 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 #23944: Argument Clinic now wraps long impl prototypes at column 78.
-- 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 #20586: Argument Clinic now ensures that functions without docstrings
+ have signatures.
-- Issue #21781: ssl.RAND_add() now supports strings longer than 2 GB.
+- Issue #23492: Argument Clinic now generates argument parsing code with
+ PyArg_Parse instead of PyArg_ParseTuple if possible.
-- 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 #23500: Argument Clinic is now smarter about generating the "#ifndef"
+ (empty) definition of the methoddef macro: it's only generated once, even
+ if Argument Clinic processes the same symbol multiple times, and it's emitted
+ at the end of all processing rather than immediately after the first use.
-- Issue #21858: Better handling of Python exceptions in the sqlite3 module.
+C API
+-----
-- Issue #21476: Make sure the email.parser.BytesParser TextIOWrapper is
- discarded after parsing, so the input file isn't unexpectedly closed.
+- Issue #23998: PyImport_ReInitLock() now checks for lock allocation error
-- Issue #21729: Used the "with" statement in the dbm.dumb module to ensure
- files closing. Patch by Claudiu Popa.
-- Issue #21491: socketserver: Fix a race condition in child processes reaping.
+What's New in Python 3.5.0 alpha 3?
+===================================
-- Issue #21832: Require named tuple inputs to be exact strings.
+Release date: 2015-03-28
-- Issue #19145: The times argument for itertools.repeat now handles
- negative values the same way for keyword arguments as it does for
- positional arguments.
+Core and Builtins
+-----------------
-- Issue #21812: turtle.shapetransform did not tranform the turtle on the
- first call. (Issue identified and fixed by Lita Cho.)
+- Issue #23573: Increased performance of string search operations (str.find,
+ str.index, str.count, the in operator, str.split, str.partition) with
+ arguments of different kinds (UCS1, UCS2, UCS4).
-- 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 #23753: Python doesn't support anymore platforms without stat() or
+ fstat(), these functions are always required.
-- Issue #21722: The distutils "upload" command now exits with a non-zero
- return code when uploading fails. Patch by Martin Dengler.
+- Issue #23681: The -b option now affects comparisons of bytes with int.
-- Issue #21723: asyncio.Queue: support any type of number (ex: float) for the
- maximum size. Patch written by Vajrasky Kok.
+- Issue #23632: Memoryviews now allow tuple indexing (including for
+ multi-dimensional memoryviews).
-- 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 #23192: Fixed generator lambdas. Patch by Bruno Cauet.
-- 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 #23629: Fix the default __sizeof__ implementation for variable-sized
+ objects.
-- Issue #21766: Prevent a security hole in CGIHTTPServer by URL unquoting paths
- before checking for a CGI script at that path.
+Library
+-------
-- Issue #21310: Fixed possible resource leak in failed open().
+- Issue #14260: The groupindex attribute of regular expression pattern object
+ now is non-modifiable mapping.
-- Issue #21677: Fixed chaining nonnormalized exceptions in io close() methods.
+- Issue #23792: Ignore KeyboardInterrupt when the pydoc pager is active.
+ This mimics the behavior of the standard unix pagers, and prevents
+ pipepager from shutting down while the pager itself is still running.
-- Issue #11709: Fix the pydoc.help function to not fail when sys.stdin is not a
- valid file.
+- Issue #23775: pprint() of OrderedDict now outputs the same representation
+ as repr().
-- Issue #13223: Fix pydoc.writedoc so that the HTML documentation for methods
- that use 'self' in the example code is generated correctly.
+- Issue #23765: Removed IsBadStringPtr calls in ctypes
-- Issue #21463: In urllib.request, fix pruning of the FTP cache.
+- Issue #22364: Improved some re error messages using regex for hints.
-- 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 #23742: ntpath.expandvars() no longer loses unbalanced single quotes.
-- Issue #21552: Fixed possible integer overflow of too long string lengths in
- the tkinter module on 64-bit platforms.
+- Issue #21717: The zipfile.ZipFile.open function now supports 'x' (exclusive
+ creation) mode.
-- 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 #21802: The reader in BufferedRWPair now is closed even when closing
+ writer failed in BufferedRWPair.close().
-- Issue #21402: tkinter.ttk now works when default root window is not set.
+- Issue #23622: Unknown escapes in regular expressions that consist of ``'\'``
+ and ASCII letter now raise a deprecation warning and will be forbidden in
+ Python 3.6.
-- Issue #10203: sqlite3.Row now truly supports sequence protocol. In particulr
- it supports reverse() and negative indices. Original patch by Claudiu Popa.
+- Issue #23671: string.Template now allows to specify the "self" parameter as
+ keyword argument. string.Formatter now allows to specify the "self" and
+ the "format_string" parameters as keyword arguments.
-- 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 #23502: The pprint module now supports mapping proxies.
-- Issue #14710: pkgutil.get_loader() no longer raises an exception when None is
- found in sys.modules.
+- Issue #17530: pprint now wraps long bytes objects and bytearrays.
-- Issue #14710: pkgutil.find_loader() no longer raises an exception when a
- module doesn't exist.
+- Issue #22687: Fixed some corner cases in breaking words in tetxtwrap.
+ Got rid of quadratic complexity in breaking long words.
-- Issue #21481: Argparse equality and inequality tests now return
- NotImplemented when comparing to an unknown type.
+- Issue #4727: The copy module now uses pickle protocol 4 (PEP 3154) and
+ supports copying of instances of classes whose __new__ method takes
+ keyword-only arguments.
-- Issue #8743: Fix interoperability between set objects and the
- collections.Set() abstract base class.
+- Issue #23491: Added a zipapp module to support creating executable zip
+ file archives of Python code. Registered ".pyz" and ".pyzw" extensions
+ on Windows for these archives (PEP 441).
-- Issue #13355: random.triangular() no longer fails with a ZeroDivisionError
- when low equals high.
+- Issue #23657: Avoid explicit checks for str in zipapp, adding support
+ for pathlib.Path objects as arguments.
-- Issue #21538: The plistlib module now supports loading of binary plist files
- when reference or offset size is not a power of two.
+- Issue #23688: Added support of arbitrary bytes-like objects and avoided
+ unnecessary copying of memoryview in gzip.GzipFile.write().
+ Original patch by Wolfgang Maier.
-- Issue #21801: Validate that __signature__ is None or an instance of Signature.
+- Issue #23252: Added support for writing ZIP files to unseekable streams.
-- Issue #21923: Prevent AttributeError in distutils.sysconfig.customize_compiler
- due to possible uninitialized _config_vars.
+- Issue #23647: Increase impalib's MAXLINE to accommodate modern mailbox sizes.
-- 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 #23539: If body is None, http.client.HTTPConnection.request now sets
+ Content-Length to 0 for PUT, POST, and PATCH headers to avoid 411 errors from
+ some web servers.
-Extension Modules
------------------
+- Issue #22351: The nntplib.NNTP constructor no longer leaves the connection
+ and socket open until the garbage collector cleans them up. Patch by
+ Martin Panter.
-- 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.
+- Issue #23704: collections.deque() objects now support methods for index(),
+ insert(), and copy(). This allows deques to be registered as a
+ MutableSequence and it improves their substitutablity for lists.
-Build
------
+- Issue #23715: :func:`signal.sigwaitinfo` and :func:`signal.sigtimedwait` are
+ now retried when interrupted by a signal not in the *sigset* parameter, if
+ the signal handler does not raise an exception. signal.sigtimedwait()
+ recomputes the timeout with a monotonic clock when it is retried.
-- Issue #15661: python.org OS X installers are now distributed as signed
- installer packages compatible with the Gatekeeper security feature.
+- Issue #23001: Few functions in modules mmap, ossaudiodev, socket, ssl, and
+ codecs, that accepted only read-only bytes-like object now accept writable
+ bytes-like object too.
-- Issue #21958: Define HAVE_ROUND when building with Visual Studio 2013 and
- above. Patch by Zachary Turner.
+- Issue #23646: If time.sleep() is interrupted by a signal, the sleep is now
+ retried with the recomputed delay, except if the signal handler raises an
+ exception (PEP 475).
-- Issue #15759: "make suspicious", "make linkcheck" and "make doctest" in Doc/
- now display special message when and only when there are failures.
+- Issue #23136: _strptime now uniformly handles all days in week 0, including
+ Dec 30 of previous year. Based on patch by Jim Carroll.
-- Issue #17095: Fix Modules/Setup *shared* support.
+- Issue #23700: Iterator of NamedTemporaryFile now keeps a reference to
+ NamedTemporaryFile instance. Patch by Bohuslav Kabrda.
-- Issue #21811: Anticipated fixes to support OS X versions > 10.9.
+- Issue #22903: The fake test case created by unittest.loader when it fails
+ importing a test module is now picklable.
-- Issue #21166: Prevent possible segfaults and other random failures of
- python --generate-posix-vars in pybuilddir.txt build target.
+- Issue #22181: On Linux, os.urandom() now uses the new getrandom() syscall if
+ available, syscall introduced in the Linux kernel 3.17. It is more reliable
+ and more secure, because it avoids the need of a file descriptor and waits
+ until the kernel has enough entropy.
+
+- Issue #2211: Updated the implementation of the http.cookies.Morsel class.
+ Setting attributes key, value and coded_value directly now is deprecated.
+ update() and setdefault() now transform and check keys. Comparing for
+ equality now takes into account attributes key, value and coded_value.
+ copy() now returns a Morsel, not a dict. repr() now contains all attributes.
+ Optimized checking keys and quoting values. Added new tests.
+ Original patch by Demian Brecht.
-IDLE
-----
+- Issue #18983: Allow selection of output units in timeit.
+ Patch by Julian Gindi.
-- Issue #17390: Adjust Editor window title; remove 'Python',
- move version to end.
+- Issue #23631: Fix traceback.format_list when a traceback has been mutated.
-- Issue #14105: Idle debugger breakpoints no longer disappear
- when inseting or deleting lines.
+- Issue #23568: Add rdivmod support to MagicMock() objects.
+ Patch by Håkan Lövdahl.
-- 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 #2052: Add charset parameter to HtmlDiff.make_file().
-- Issue #21765: Add support for non-ascii identifiers to HyperParser.
+- Issue #23668: Support os.truncate and os.ftruncate on Windows.
-- Issue #21940: Add unittest for WidgetRedirector. Initial patch by Saimadhav
- Heblikar.
+- Issue #23138: Fixed parsing cookies with absent keys or values in cookiejar.
+ Patch by Demian Brecht.
-- Issue #18592: Add unittest for SearchDialogBase. Patch by Phil Webster.
+- Issue #23051: multiprocessing.Pool methods imap() and imap_unordered() now
+ handle exceptions raised by an iterator. Patch by Alon Diamant and Davin
+ Potts.
-- Issue #21694: Add unittest for ParenMatch. Patch by Saimadhav Heblikar.
+- Issue #23581: Add matmul support to MagicMock. Patch by Håkan Lövdahl.
-- Issue #21686: add unittest for HyperParser. Original patch by Saimadhav
- Heblikar.
+- Issue #23566: enable(), register(), dump_traceback() and
+ dump_traceback_later() functions of faulthandler now accept file
+ descriptors. Patch by Wei Wu.
-- 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 #22928: Disabled HTTP header injections in http.client.
+ Original patch by Demian Brecht.
-- Issue #21695: Closing a Find-in-files output window while the search is
- still in progress no longer closes Idle.
+- Issue #23615: Modules bz2, tarfile and tokenize now can be reloaded with
+ imp.reload(). Patch by Thomas Kluyver.
-- Issue #18910: Add unittest for textView. Patch by Phil Webster.
+- Issue #23605: os.walk() now calls os.scandir() instead of os.listdir().
+ The usage of os.scandir() reduces the number of calls to os.stat().
+ Initial patch written by Ben Hoyt.
-- Issue #18292: Add unittest for AutoExpand. Patch by Saihadhav Heblikar.
+Build
+-----
-- Issue #18409: Add unittest for AutoComplete. Patch by Phil Webster.
+- Issue #23585: make patchcheck will ensure the interpreter is built.
Tests
-----
projects / python / commitdiff