- Issue #23728: binascii.crc_hqx() could return an integer outside of the range
0-0xffff for empty data.
-- Issue #23811: Add missing newline to the PyCompileError error message.
- Patch by Alex Shkop.
+- Issue #23887: urllib.error.HTTPError now has a proper repr() representation.
+ Patch by Berker Peksag.
-- Issue #17898: Fix exception in gettext.py when parsing certain plural forms.
+- asyncio: New event loop APIs: set_task_factory() and get_task_factory().
-- Issue #22982: Improve BOM handling when seeking to multiple positions of
- a writable text file.
+- asyncio: async() function is deprecated in favour of ensure_future().
-- 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 24178: asyncio.Lock, Condition, Semaphore, and BoundedSemaphore
+ support new 'async with' syntax. Contributed by Yury Selivanov.
-- Issue #23881: urllib.request.ftpwrapper constructor now closes the socket if
- the FTP connection failed to fix a ResourceWarning.
+- Issue 24179: Support 'async for' for asyncio.StreamReader.
+ Contributed by Yury Selivanov.
-- Issue #23400: Raise same exception on both Python 2 and 3 if sem_open is not
- available. Patch by Davin Potts.
+- Issue 24184: Add AsyncIterator and AsyncIterable ABCs to
+ collections.abc. Contributed by Yury Selivanov.
-- 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 22547: Implement informative __repr__ for inspect.BoundArguments.
+ Contributed by Yury Selivanov.
-- Issue #23338: Fixed formatting ctypes error messages on Cygwin.
- Patch by Makoto Kato.
+- Issue 24190: Implement inspect.BoundArgument.apply_defaults() method.
+ Contributed by Yury Selivanov.
-- Issue #16840: Tkinter now supports 64-bit integers added in Tcl 8.4 and
- arbitrary precision integers added in Tcl 8.5.
+- Issue 20691: Add 'follow_wrapped' argument to
+ inspect.Signature.from_callable() and inspect.signature().
+ Contributed by Yury Selivanov.
-- 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 24248: Deprecate inspect.Signature.from_function() and
+ inspect.Signature.from_builtin().
-- Issue #21526: Tkinter now supports new boolean type in Tcl 8.5.
+- Issue #23898: Fix inspect.classify_class_attrs() to support attributes
+ with overloaded __eq__ and __bool__. Patch by Mike Bayer.
-- Issue #23838: linecache now clears the cache and returns an empty result on
- MemoryError.
+- Issue #24298: Fix inspect.signature() to correctly unwrap wrappers
+ around bound methods.
-- 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.
+IDLE
+----
-- Issue #23745: The new email header parser now handles duplicate MIME
- parameter names without error, similar to how get_param behaves.
+- Issue #23184: remove unused names and imports in idlelib.
+ Initial patch by Al Sweigart.
-- 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.
+Tests
+-----
-- Issue #23742: ntpath.expandvars() no longer loses unbalanced single quotes.
+- Issue #21520: test_zipfile no longer fails if the word 'bad' appears
+ anywhere in the name of the current directory.
-- Issue #21802: The reader in BufferedRWPair now is closed even when closing
- writer failed in BufferedRWPair.close().
+- Issue #9517: Move script_helper into the support package.
+ Patch by Christie Wilson.
-- 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.
+Documentation
+-------------
-- Issue #21560: An attempt to write a data of wrong type no longer cause
- GzipFile corruption. Original patch by Wolfgang Maier.
+- Issue #22155: Add File Handlers subsection with createfilehandler to tkinter
+ doc. Remove obsolete example from FAQ. Patch by Martin Panter.
-- Issue #23647: Increase impalib's MAXLINE to accommodate modern mailbox sizes.
+- Issue #24029: Document the name binding behavior for submodule imports.
-- 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.
+- Issue #24077: Fix typo in man page for -I command option: -s, not -S
-- 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.
+Tools/Demos
+-----------
-- Issue #23136: _strptime now uniformly handles all days in week 0, including
- Dec 30 of previous year. Based on patch by Jim Carroll.
+- Issue #24000: Improved Argument Clinic's mapping of converters to legacy
+ "format units". Updated the documentation to match.
-- Issue #23700: Iterator of NamedTemporaryFile now keeps a reference to
- NamedTemporaryFile instance. Patch by Bohuslav Kabrda.
+- Issue #24001: Argument Clinic converters now use accept={type}
+ instead of types={'type'} to specify the types the converter accepts.
-- Issue #22903: The fake test case created by unittest.loader when it fails
- importing a test module is now picklable.
+- Issue #23330: h2py now supports arbitrary filenames in #include.
-- Issue #23568: Add rdivmod support to MagicMock() objects.
- Patch by Håkan Lövdahl.
+- Issue #24031: make patchcheck now supports git checkouts, too.
-- Issue #23138: Fixed parsing cookies with absent keys or values in cookiejar.
- Patch by Demian Brecht.
-- Issue #23051: multiprocessing.Pool methods imap() and imap_unordered() now
- handle exceptions raised by an iterator. Patch by Alon Diamant and Davin
- Potts.
+What's New in Python 3.5.0 alpha 4?
+===================================
-- Issue #22928: Disabled HTTP header injections in http.client.
- Original patch by Demian Brecht.
+Release date: 2015-04-19
-- Issue #23615: Modules bz2, tarfile and tokenize now can be reloaded with
- imp.reload(). Patch by Thomas Kluyver.
+Core and Builtins
+-----------------
-- Issue #23476: In the ssl module, enable OpenSSL's X509_V_FLAG_TRUSTED_FIRST
- flag on certificate stores when it is available.
+- 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 #23576: Avoid stalling in SSL reads when EOF has been reached in the
- SSL layer but the underlying connection hasn't been closed.
+- Issue #22631: Added Linux-specific socket constant CAN_RAW_FD_FRAMES.
+ Patch courtesy of Joe Jevnik.
-- Issue #23504: Added an __all__ to the types module.
+- Issue #23731: Implement PEP 488: removal of .pyo files.
-- Issue #20204: Added the __module__ attribute to _tkinter classes.
+- 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 #23521: Corrected pure python implementation of timedelta division.
+- 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.
- * Eliminated OverflowError from timedelta * float for some floats;
- * Corrected rounding in timedlta true division.
+- Issue #22977: Fixed formatting Windows error messages on Wine.
+ Patch by Martin Panter.
-- Issue #21619: Popen objects no longer leave a zombie after exit in the with
- statement if the pipe was broken. Patch by Martin Panter.
+- Issue #23466: %c, %o, %x, and %X in bytes formatting now raise TypeError on
+ non-integer input.
-- Issue #6639: Module-level turtle functions no longer raise TclError after
- closing the window.
+- Issue #24044: Fix possible null pointer dereference in list.sort in out of
+ memory conditions.
-- Issues #814253, #9179: Warnings now are raised when group references and
- conditional group references are used in lookbehind assertions in regular
- expressions.
+- Issue #21354: PyCFunction_New function is exposed by python DLL again.
-- Issue #23215: Multibyte codecs with custom error handlers that ignores errors
- consumed too much memory and raised SystemError or MemoryError.
- Original patch by Aleksi Torhamo.
+Library
+-------
-- Issue #5700: io.FileIO() called flush() after closing the file.
- flush() was not called in close() if closefd=False.
+- Issue #23840: tokenize.open() now closes the temporary binary file on error
+ to fix a resource warning.
-- Issue #23374: Fixed pydoc failure with non-ASCII files when stdout encoding
- differs from file system encoding (e.g. on Mac OS).
+- Issue #16914: new debuglevel 2 in smtplib adds timestamps to debug output.
-- Issue #23481: Remove RC4 from the SSL module's default cipher list.
+- 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 #21548: Fix pydoc.synopsis() and pydoc.apropos() on modules with empty
- docstrings.
+- Issue #23703: Fix a regression in urljoin() introduced in 901e4e52b20a.
+ Patch by Demian Brecht.
-- Issue #22885: Fixed arbitrary code execution vulnerability in the dbm.dumb
- module. Original patch by Claudiu Popa.
+- Issue #4254: Adds _curses.update_lines_cols() Patch by Arnon Yaari
-- Issue #23146: Fix mishandling of absolute Windows paths with forward
- slashes in pathlib.
+- Issue 19933: Provide default argument for ndigits in round. Patch by
+ Vajrasky Kok.
-- Issue #23421: Fixed compression in tarfile CLI. Patch by wdv4758h.
+- Issue #23193: Add a numeric_owner parameter to
+ tarfile.TarFile.extract and tarfile.TarFile.extractall. Patch by
+ Michael Vogt and Eric Smith.
-- Issue #23367: Fix possible overflows in the unicodedata module.
+- Issue #23342: Add a subprocess.run() function than returns a CalledProcess
+ instance for a more consistent API than the existing call* functions.
-- Issue #23361: Fix possible overflow in Windows subprocess creation code.
+- 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 #23801: Fix issue where cgi.FieldStorage did not always ignore the
- entire preamble to a multipart body.
++- Fix possible integer overflows in the pickle module.
+
-- Issue #23310: Fix MagicMock's initializer to work with __methods__, just
- like configure_mock(). Patch by Kasia Jachim.
+- Issue #22931: Allow '[' and ']' in cookie values.
-- asyncio: New event loop APIs: set_task_factory() and get_task_factory().
-
-- asyncio: async() function is deprecated in favour of ensure_future().
+- The keywords attribute of functools.partial is now always a dictionary.
-- Issue #23898: Fix inspect.classify_class_attrs() to support attributes
- with overloaded __eq__ and __bool__. Patch by Mike Bayer.
+- Issue #23811: Add missing newline to the PyCompileError error message.
+ Patch by Alex Shkop.
-- Issue #24298: Fix inspect.signature() to correctly unwrap wrappers
- around bound methods.
+- Issue #21116: Avoid blowing memory when allocating a multiprocessing shared
+ array that's larger than 50% of the available RAM. Patch by Médéric Boquien.
-IDLE
-----
+- Issue #22982: Improve BOM handling when seeking to multiple positions of
+ a writable text file.
-- Issue #23184: remove unused names and imports in idlelib.
- Initial patch by Al Sweigart.
+- Issue #23464: Removed deprecated asyncio JoinableQueue.
-Tests
------
+- 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 #21520: test_zipfile no longer fails if the word 'bad' appears
- anywhere in the name of the current directory.
+- Issue #21859: Added Python implementation of io.FileIO.
-- Issue #23799: Added test.support.start_threads() for running and
- cleaning up multiple threads.
+- 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 #22390: test.regrtest now emits a warning if temporary files or
- directories are left after running a test.
+- Issue #23400: Raise same exception on both Python 2 and 3 if sem_open is not
+ available. Patch by Davin Potts.
-- Issue #23583: Added tests for standard IO streams in IDLE.
+- 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 *``.
-Build
------
+- Issue #23411: Added DefragResult, ParseResult, SplitResult, DefragResultBytes,
+ ParseResultBytes, and SplitResultBytes to urllib.parse.__all__.
+ Patch by Martin Panter.
-- Issue #23445: pydebug builds now use "gcc -Og" where possible, to make
- the resulting executable faster.
+- Issue #23881: urllib.request.ftpwrapper constructor now closes the socket if
+ the FTP connection failed to fix a ResourceWarning.
-- Issue #23686: Update OS X 10.5 installer and Windows builds to use
- OpenSSL 1.0.2a.
+- 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.
-C API
------
+- 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.
-- Issue #23998: PyImport_ReInitLock() now checks for lock allocation error
+- 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.
-Documentation
--------------
+- Issue #10590: xml.sax.parseString() now supports string argument.
-- Issue #24351: Clarify what is meant by "identifier" in the context of
- string.Template instances.
+- Issue #23338: Fixed formatting ctypes error messages on Cygwin.
+ Patch by Makoto Kato.
-- Issue #22155: Add File Handlers subsection with createfilehandler to tkinter
- doc. Remove obsolete example from FAQ. Patch by Martin Panter.
+- Issue #15582: inspect.getdoc() now follows inheritance chains.
-- Issue #24029: Document the name binding behavior for submodule imports.
+- Issue #2175: SAX parsers now support a character stream of InputSource object.
-- Issue #24077: Fix typo in man page for -I command option: -s, not -S.
+- Issue #16840: Tkinter now supports 64-bit integers added in Tcl 8.4 and
+ arbitrary precision integers added in Tcl 8.5.
-Tools/Demos
------------
+- 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 #23330: h2py now supports arbitrary filenames in #include.
+- 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 #24031: make patchcheck now supports git checkouts, too.
+- Issue #21526: Tkinter now supports new boolean type in Tcl 8.5.
+- Issue #23836: Fix the faulthandler module to handle reentrant calls to
+ its signal handlers.
-What's New in Python 3.4.3?
-===========================
+- Issue #23838: linecache now clears the cache and returns an empty result on
+ MemoryError.
-Release date: 2015-02-23
+- Issue #10395: Added os.path.commonpath(). Implemented in posixpath and ntpath.
+ Based on patch by Rafik Draoui.
-Core and Builtins
------------------
+- Issue #23611: Serializing more "lookupable" objects (such as unbound methods
+ or nested classes) now are supported with pickle protocols < 4.
-- Issue #22735: Fix many edge cases (including crashes) involving custom mro()
- implementations.
+- Issue #13583: sqlite3.Row now supports slice indexing.
-- Issue #22896: Avoid using PyObject_AsCharBuffer(), PyObject_AsReadBuffer()
- and PyObject_AsWriteBuffer().
+- 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 #21295: Revert some changes (issue #16795) to AST line numbers and
- column offsets that constituted a regression.
+- 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.
-- Issue #21408: The default __ne__() now returns NotImplemented if __eq__()
- returned NotImplemented. Original patch by Martin Panter.
+- 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 #23321: Fixed a crash in str.decode() when error handler returned
- replacment string longer than mailformed input data.
+- Issue #23704: collections.deque() objects now support __add__, __mul__, and
+ __imul__().
-- Issue #23048: Fix jumping out of an infinite while loop in the pdb.
+- Issue #23171: csv.Writer.writerow() now supports arbitrary iterables.
-- Issue #20335: bytes constructor now raises TypeError when encoding or errors
- is specified with non-string argument. Based on patch by Renaud Blanch.
+- Issue #23745: The new email header parser now handles duplicate MIME
+ parameter names without error, similar to how get_param behaves.
-- Issue #22335: Fix crash when trying to enlarge a bytearray to 0x7fffffff
- bytes on a 32-bit platform.
+- Issue #22117: Fix os.utime(), it now rounds the timestamp towards minus
+ infinity (-inf) instead of rounding towards zero.
-- Issue #22653: Fix an assertion failure in debug mode when doing a reentrant
- dict insertion in debug mode.
+- Issue #23310: Fix MagicMock's initializer to work with __methods__, just
+ like configure_mock(). Patch by Kasia Jachim.
-- Issue #22643: Fix integer overflow in Unicode case operations (upper, lower,
- title, swapcase, casefold).
-- Issue #22604: Fix assertion error in debug mode when dividing a complex
- number by (nan+0j).
+Build
+-----
-- Issue #22470: Fixed integer overflow issues in "backslashreplace",
- "xmlcharrefreplace", and "surrogatepass" error handlers.
+- Issue #23817: FreeBSD now uses "1.0" the the SOVERSION as other operating
+ systems, instead of just "1".
-- Issue #22520: Fix overflow checking when generating the repr of a unicode
- object.
+- Issue #23501: Argument Clinic now generates code into separate files by default.
-- Issue #22519: Fix overflow checking in PyBytes_Repr.
+Tests
+-----
-- Issue #22518: Fix integer overflow issues in latin-1 encoding.
+- Issue #23799: Added test.support.start_threads() for running and
+ cleaning up multiple threads.
-- Issue #23165: Perform overflow checks before allocating memory in the
- _Py_char2wchar function.
+- Issue #22390: test.regrtest now emits a warning if temporary files or
+ directories are left after running a test.
-Library
--------
+Tools/Demos
+-----------
-- Issue #23399: pyvenv creates relative symlinks where possible.
+- Issue #18128: pygettext now uses standard +NNNN format in the
+ POT-Creation-Date header.
-- Issue #23099: Closing io.BytesIO with exported buffer is rejected now to
- prevent corrupting exported buffer.
+- 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 #23363: Fix possible overflow in itertools.permutations.
+- Issue #23944: Argument Clinic now wraps long impl prototypes at column 78.
-- Issue #23364: Fix possible overflow in itertools.product.
+- Issue #20586: Argument Clinic now ensures that functions without docstrings
+ have signatures.
-- Issue #23366: Fixed possible integer overflow in itertools.combinations.
+- Issue #23492: Argument Clinic now generates argument parsing code with
+ PyArg_Parse instead of PyArg_ParseTuple if possible.
-- Issue #23369: Fixed possible integer overflow in
- _json.encode_basestring_ascii.
+- 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 #23353: Fix the exception handling of generators in
- PyEval_EvalFrameEx(). At entry, save or swap the exception state even if
- PyEval_EvalFrameEx() is called with throwflag=0. At exit, the exception state
- is now always restored or swapped, not only if why is WHY_YIELD or
- WHY_RETURN. Patch co-written with Antoine Pitrou.
+C API
+-----
-- Issue #18518: timeit now rejects statements which can't be compiled outside
- a function or a loop (e.g. "return" or "break").
+- Issue #23998: PyImport_ReInitLock() now checks for lock allocation error
-- Issue #23094: Fixed readline with frames in Python implementation of pickle.
-- Issue #23268: Fixed bugs in the comparison of ipaddress classes.
+What's New in Python 3.5.0 alpha 3?
+===================================
-- Issue #21408: Removed incorrect implementations of __ne__() which didn't
- returned NotImplemented if __eq__() returned NotImplemented. The default
- __ne__() now works correctly.
+Release date: 2015-03-28
-- Issue #19996: :class:`email.feedparser.FeedParser` now handles (malformed)
- headers with no key rather than assuming the body has started.
+Core and Builtins
+-----------------
-- Issue #23248: Update ssl error codes from latest OpenSSL git master.
+- 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 #23098: 64-bit dev_t is now supported in the os module.
+- Issue #23753: Python doesn't support anymore platforms without stat() or
+ fstat(), these functions are always required.
-- Issue #23250: In the http.cookies module, capitalize "HttpOnly" and "Secure"
- as they are written in the standard.
+- Issue #23681: The -b option now affects comparisons of bytes with int.
-- Issue #23063: In the disutils' check command, fix parsing of reST with code or
- code-block directives.
+- Issue #23632: Memoryviews now allow tuple indexing (including for
+ multi-dimensional memoryviews).
-- Issue #23209, #23225: selectors.BaseSelector.close() now clears its internal
- reference to the selector mapping to break a reference cycle. Initial patch
- written by Martin Richard.
+- Issue #23192: Fixed generator lambdas. Patch by Bruno Cauet.
-- Issue #21356: Make ssl.RAND_egd() optional to support LibreSSL. The
- availability of the function is checked during the compilation. Patch written
- by Bernard Spil.
+- Issue #23629: Fix the default __sizeof__ implementation for variable-sized
+ objects.
-- Issue #20896, #22935: The :func:`ssl.get_server_certificate` function now
- uses the :data:`~ssl.PROTOCOL_SSLv23` protocol by default, not
- :data:`~ssl.PROTOCOL_SSLv3`, for maximum compatibility and support platforms
- where :data:`~ssl.PROTOCOL_SSLv3` support is disabled.
+Library
+-------
-- Issue #23111: In the ftplib, make ssl.PROTOCOL_SSLv23 the default protocol
- version.
+- Issue #14260: The groupindex attribute of regular expression pattern object
+ now is non-modifiable mapping.
-- Issue #23132: Mitigate regression in speed and clarity in functools.total_ordering.
+- 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 #22585: On OpenBSD 5.6 and newer, os.urandom() now calls getentropy(),
- instead of reading /dev/urandom, to get pseudo-random bytes.
+- Issue #23775: pprint() of OrderedDict now outputs the same representation
+ as repr().
-- Issue #23112: Fix SimpleHTTPServer to correctly carry the query string and
- fragment when it redirects to add a trailing slash.
+- Issue #23765: Removed IsBadStringPtr calls in ctypes
-- Issue #23093: In the io, module allow more operations to work on detached
- streams.
+- Issue #22364: Improved some re error messages using regex for hints.
-- Issue #19104: pprint now produces evaluable output for wrapped strings.
+- Issue #23742: ntpath.expandvars() no longer loses unbalanced single quotes.
-- Issue #23071: Added missing names to codecs.__all__. Patch by Martin Panter.
+- Issue #21717: The zipfile.ZipFile.open function now supports 'x' (exclusive
+ creation) mode.
-- Issue #15513: Added a __sizeof__ implementation for pickle classes.
+- Issue #21802: The reader in BufferedRWPair now is closed even when closing
+ writer failed in BufferedRWPair.close().
-- Issue #19858: pickletools.optimize() now aware of the MEMOIZE opcode, can
- produce more compact result and no longer produces invalid output if input
- data contains MEMOIZE opcodes together with PUT or BINPUT opcodes.
+- 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 #22095: Fixed HTTPConnection.set_tunnel with default port. The port
- value in the host header was set to "None". Patch by Demian Brecht.
+- 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 #23016: A warning no longer produces an AttributeError when the program
- is run with pythonw.exe.
+- Issue #23502: The pprint module now supports mapping proxies.
-- Issue #21775: shutil.copytree(): fix crash when copying to VFAT. An exception
- handler assumed that that OSError objects always have a 'winerror' attribute.
- That is not the case, so the exception handler itself raised AttributeError
- when run on Linux (and, presumably, any other non-Windows OS).
- Patch by Greg Ward.
+- Issue #17530: pprint now wraps long bytes objects and bytearrays.
-- Issue #1218234: Fix inspect.getsource() to load updated source of
- reloaded module. Initial patch by Berker Peksag.
+- Issue #22687: Fixed some corner cases in breaking words in tetxtwrap.
+ Got rid of quadratic complexity in breaking long words.
-- Issue #22959: In the constructor of http.client.HTTPSConnection, prefer the
- context's check_hostname attribute over the *check_hostname* parameter.
+- 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 #16043: Add a default limit for the amount of data xmlrpclib.gzip_decode
- will return. This resolves CVE-2013-1753.
+- 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 #22966: Fix __pycache__ pyc file name clobber when pyc_compile is
- asked to compile a source file containing multiple dots in the source file
- name.
+- Issue #23657: Avoid explicit checks for str in zipapp, adding support
+ for pathlib.Path objects as arguments.
-- Issue #21971: Update turtledemo doc and add module to the index.
+- 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 #21032. Fixed socket leak if HTTPConnection.getresponse() fails.
- Original patch by Martin Panter.
+- Issue #23252: Added support for writing ZIP files to unseekable streams.
-- Issue #22960: Add a context argument to xmlrpclib.ServerProxy constructor.
+- Issue #23647: Increase impalib's MAXLINE to accommodate modern mailbox sizes.
-- Issue #22915: SAX parser now supports files opened with file descriptor or
- bytes path.
+- 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.
-- Issue #22609: Constructors and update methods of mapping classes in the
- collections module now accept the self keyword argument.
+- 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 #22788: Add *context* parameter to logging.handlers.HTTPHandler.
+- 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.
-- Issue #22921: Allow SSLContext to take the *hostname* parameter even if
- OpenSSL doesn't support SNI.
+- 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 #22894: TestCase.subTest() would cause the test suite to be stopped
- when in failfast mode, even in the absence of failures.
+- 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 #22638: SSLv3 is now disabled throughout the standard library.
- It can still be enabled by instantiating a SSLContext manually.
+- 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 #22370: Windows detection in pathlib is now more robust.
+- Issue #23136: _strptime now uniformly handles all days in week 0, including
+ Dec 30 of previous year. Based on patch by Jim Carroll.
-- Issue #22841: Reject coroutines in asyncio add_signal_handler().
- Patch by Ludovic.Gasc.
+- Issue #23700: Iterator of NamedTemporaryFile now keeps a reference to
+ NamedTemporaryFile instance. Patch by Bohuslav Kabrda.
-- Issue #22849: Fix possible double free in the io.TextIOWrapper constructor.
+- Issue #22903: The fake test case created by unittest.loader when it fails
+ importing a test module is now picklable.
-- Issue #12728: Different Unicode characters having the same uppercase but
- different lowercase are now matched in case-insensitive regular expressions.
+- 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.
-- Issue #22821: Fixed fcntl() with integer argument on 64-bit big-endian
- platforms.
+- Issue #18983: Allow selection of output units in timeit.
+ Patch by Julian Gindi.
-- Issue #22406: Fixed the uu_codec codec incorrectly ported to 3.x.
- Based on patch by Martin Panter.
+- Issue #23631: Fix traceback.format_list when a traceback has been mutated.
-- Issue #17293: uuid.getnode() now determines MAC address on AIX using netstat.
- Based on patch by Aivars Kalvāns.
+- Issue #23568: Add rdivmod support to MagicMock() objects.
+ Patch by Håkan Lövdahl.
-- Issue #22769: Fixed ttk.Treeview.tag_has() when called without arguments.
+- Issue #2052: Add charset parameter to HtmlDiff.make_file().
-- Issue #22417: Verify certificates by default in httplib (PEP 476).
+- Issue #23668: Support os.truncate and os.ftruncate on Windows.
-- Issue #22775: Fixed unpickling of http.cookies.SimpleCookie with protocol 2
- and above. Patch by Tim Graham.
+- Issue #23138: Fixed parsing cookies with absent keys or values in cookiejar.
+ Patch by Demian Brecht.
-- Issue #22366: urllib.request.urlopen will accept a context object
- (SSLContext) as an argument which will then used be for HTTPS connection.
- Patch by Alex Gaynor.
+- Issue #23051: multiprocessing.Pool methods imap() and imap_unordered() now
+ handle exceptions raised by an iterator. Patch by Alon Diamant and Davin
+ Potts.
-- Issue #22776: Brought excluded code into the scope of a try block in
- SysLogHandler.emit().
+- Issue #23581: Add matmul support to MagicMock. Patch by Håkan Lövdahl.
-- Issue #22665: Add missing get_terminal_size and SameFileError to
- shutil.__all__.
+- Issue #23566: enable(), register(), dump_traceback() and
+ dump_traceback_later() functions of faulthandler now accept file
+ descriptors. Patch by Wei Wu.
-- Issue #17381: Fixed handling of case-insensitive ranges in regular
- expressions.
+- Issue #22928: Disabled HTTP header injections in http.client.
+ Original patch by Demian Brecht.
-- Issue #22410: Module level functions in the re module now cache compiled
- locale-dependent regular expressions taking into account the locale.
+- Issue #23615: Modules bz2, tarfile and tokenize now can be reloaded with
+ imp.reload(). Patch by Thomas Kluyver.
-- Issue #22759: Query methods on pathlib.Path() (exists(), is_dir(), etc.)
- now return False when the underlying stat call raises NotADirectoryError.
+- 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 #8876: distutils now falls back to copying files when hard linking
- doesn't work. This allows use with special filesystems such as VirtualBox
- shared folders.
+Build
+-----
-- Issue #18853: Fixed ResourceWarning in shlex.__nain__.
+- Issue #23585: make patchcheck will ensure the interpreter is built.
-- Issue #9351: Defaults set with set_defaults on an argparse subparser
- are no longer ignored when also set on the parent parser.
+Tests
+-----
-- Issue #21991: Make email.headerregistry's header 'params' attributes
- be read-only (MappingProxyType). Previously the dictionary was modifiable
- but a new one was created on each access of the attribute.
+- Issue #23583: Added tests for standard IO streams in IDLE.
-- Issue #22641: In asyncio, the default SSL context for client connections
- is now created using ssl.create_default_context(), for stronger security.
+- Issue #22289: Prevent test_urllib2net failures due to ftp connection timeout.
-- Issue #22435: Fix a file descriptor leak when SocketServer bind fails.
+Tools/Demos
+-----------
-- Issue #13096: Fixed segfault in CTypes POINTER handling of large
- values.
+- Issue #22826: The result of open() in Tools/freeze/bkfile.py is now better
+ compatible with regular files (in particular it now supports the context
+ management protocol).
-- Issue #11694: Raise ConversionError in xdrlib as documented. Patch
- by Filip Gruszczyński and Claudiu Popa.
-- Issue #22462: Fix pyexpat's creation of a dummy frame to make it
- appear in exception tracebacks.
+What's New in Python 3.5 alpha 2?
+=================================
-- Issue #21173: Fix len() on a WeakKeyDictionary when .clear() was called
- with an iterator alive.
+Release date: 2015-03-09
-- Issue #11866: Eliminated race condition in the computation of names
- for new threads.
+Core and Builtins
+-----------------
-- Issue #21905: Avoid RuntimeError in pickle.whichmodule() when sys.modules
- is mutated while iterating. Patch by Olivier Grisel.
+- Issue #23571: PyObject_Call() and PyCFunction_Call() now raise a SystemError
+ if a function returns a result and raises an exception. The SystemError is
+ chained to the previous exception.
-- Issue #22219: The zipfile module CLI now adds entries for directories
- (including empty directories) in ZIP file.
+Library
+-------
-- Issue #22449: In the ssl.SSLContext.load_default_certs, consult the
- environmental variables SSL_CERT_DIR and SSL_CERT_FILE on Windows.
+- Issue #22524: New os.scandir() function, part of the PEP 471: "os.scandir()
+ function -- a better and faster directory iterator". Patch written by Ben
+ Hoyt.
-- Issue #20076: Added non derived UTF-8 aliases to locale aliases table.
+- Issue #23103: Reduced the memory consumption of IPv4Address and IPv6Address.
-- Issue #20079: Added locales supported in glibc 2.18 to locale alias table.
+- Issue #21793: BaseHTTPRequestHandler again logs response code as numeric,
+ not as stringified enum. Patch by Demian Brecht.
-- Issue #22396: On 32-bit AIX platform, don't expose os.posix_fadvise() nor
- os.posix_fallocate() because their prototypes in system headers are wrong.
+- Issue #23476: In the ssl module, enable OpenSSL's X509_V_FLAG_TRUSTED_FIRST
+ flag on certificate stores when it is available.
-- Issue #22517: When a io.BufferedRWPair object is deallocated, clear its
- weakrefs.
+- Issue #23576: Avoid stalling in SSL reads when EOF has been reached in the
+ SSL layer but the underlying connection hasn't been closed.
-- Issue #22448: Improve canceled timer handles cleanup to prevent
- unbound memory usage. Patch by Joshua Moore-Oliva.
+- Issue #23504: Added an __all__ to the types module.
-- Issue #23009: Make sure selectors.EpollSelecrtor.select() works when no
- FD is registered.
+- Issue #23563: Optimized utility functions in urllib.parse.
-IDLE
-----
+- Issue #7830: Flatten nested functools.partial.
-- Issue #20577: Configuration of the max line length for the FormatParagraph
- extension has been moved from the General tab of the Idle preferences dialog
- to the FormatParagraph tab of the Config Extensions dialog.
- Patch by Tal Einat.
+- Issue #20204: Added the __module__ attribute to _tkinter classes.
-- Issue #16893: Update Idle doc chapter to match current Idle and add new
- information.
+- Issue #19980: Improved help() for non-recognized strings. help('') now
+ shows the help on str. help('help') now shows the help on help().
+ Original patch by Mark Lawrence.
-- Issue #3068: Add Idle extension configuration dialog to Options menu.
- Changes are written to HOME/.idlerc/config-extensions.cfg.
- Original patch by Tal Einat.
+- Issue #23521: Corrected pure python implementation of timedelta division.
-- Issue #16233: A module browser (File : Class Browser, Alt+C) requires a
- editor window with a filename. When Class Browser is requested otherwise,
- from a shell, output window, or 'Untitled' editor, Idle no longer displays
- an error box. It now pops up an Open Module box (Alt+M). If a valid name
- is entered and a module is opened, a corresponding browser is also opened.
+ * Eliminated OverflowError from timedelta * float for some floats;
+ * Corrected rounding in timedlta true division.
-- Issue #4832: Save As to type Python files automatically adds .py to the
- name you enter (even if your system does not display it). Some systems
- automatically add .txt when type is Text files.
+- Issue #21619: Popen objects no longer leave a zombie after exit in the with
+ statement if the pipe was broken. Patch by Martin Panter.
-- Issue #21986: Code objects are not normally pickled by the pickle module.
- To match this, they are no longer pickled when running under Idle.
+- Issue #22936: Make it possible to show local variables in tracebacks for
+ both the traceback module and unittest.
-- Issue #23180: Rename IDLE "Windows" menu item to "Window".
- Patch by Al Sweigart.
+- Issue #15955: Add an option to limit the output size in bz2.decompress().
+ Patch by Nikolaus Rath.
-Tests
------
+- Issue #6639: Module-level turtle functions no longer raise TclError after
+ closing the window.
-- Issue #23392: Added tests for marshal C API that works with FILE*.
+- Issues #814253, #9179: Group references and conditional group references now
+ work in lookbehind assertions in regular expressions.
-- Issue #18982: Add tests for CLI of the calendar module.
+- Issue #23215: Multibyte codecs with custom error handlers that ignores errors
+ consumed too much memory and raised SystemError or MemoryError.
+ Original patch by Aleksi Torhamo.
-- Issue #19548: Added some additional checks to test_codecs to ensure that
- statements in the updated documentation remain accurate. Patch by Martin
- Panter.
+- Issue #5700: io.FileIO() called flush() after closing the file.
+ flush() was not called in close() if closefd=False.
-- Issue #22838: All test_re tests now work with unittest test discovery.
+- Issue #23374: Fixed pydoc failure with non-ASCII files when stdout encoding
+ differs from file system encoding (e.g. on Mac OS).
-- Issue #22173: Update lib2to3 tests to use unittest test discovery.
+- Issue #23481: Remove RC4 from the SSL module's default cipher list.
-- Issue #16000: Convert test_curses to use unittest.
+- Issue #21548: Fix pydoc.synopsis() and pydoc.apropos() on modules with empty
+ docstrings.
-- Issue #21456: Skip two tests in test_urllib2net.py if _ssl module not
- present. Patch by Remi Pointel.
+- Issue #22885: Fixed arbitrary code execution vulnerability in the dbm.dumb
+ module. Original patch by Claudiu Popa.
-- Issue #22770: Prevent some Tk segfaults on OS X when running gui tests.
+- Issue #23239: ssl.match_hostname() now supports matching of IP addresses.
-- Issue #23211: Workaround test_logging failure on some OS X 10.6 systems.
+- Issue #23146: Fix mishandling of absolute Windows paths with forward
+ slashes in pathlib.
-- Issue #23345: Prevent test_ssl failures with large OpenSSL patch level
- values (like 0.9.8zc).
+- Issue #23096: Pickle representation of floats with protocol 0 now is the same
+ for both Python and C implementations.
-- Issue #22289: Prevent test_urllib2net failures due to ftp connection timeout.
+- Issue #19105: pprint now more efficiently uses free space at the right.
-Build
------
+- Issue #14910: Add allow_abbrev parameter to argparse.ArgumentParser. Patch by
+ Jonathan Paugh, Steven Bethard, paul j3 and Daniel Eriksson.
-- Issue #15506: Use standard PKG_PROG_PKG_CONFIG autoconf macro in the configure
- script.
+- Issue #21717: tarfile.open() now supports 'x' (exclusive creation) mode.
-- Issue #22935: Allow the ssl module to be compiled if openssl doesn't support
- SSL 3.
+- Issue #23344: marshal.dumps() is now 20-25% faster on average.
-- Issue #16537: Check whether self.extensions is empty in setup.py. Patch by
- Jonathan Hosmer.
+- Issue #20416: marshal.dumps() with protocols 3 and 4 is now 40-50% faster on
+ average.
-- Issue #18096: Fix library order returned by python-config.
+- Issue #23421: Fixed compression in tarfile CLI. Patch by wdv4758h.
-- Issue #17219: Add library build dir for Python extension cross-builds.
+- Issue #23367: Fix possible overflows in the unicodedata module.
-- Issue #17128: Use private version of OpenSSL for 3.4.3 OS X 10.5+ installer.
+- Issue #23361: Fix possible overflow in Windows subprocess creation code.
-C API
------
+- logging.handlers.QueueListener now takes a respect_handler_level keyword
+ argument which, if set to True, will pass messages to handlers taking handler
+ levels into account.
-- Issue #22079: PyType_Ready() now checks that statically allocated type has
- no dynamically allocated bases.
+- Issue #19705: turtledemo now has a visual sorting algorithm demo. Original
+ patch from Jason Yeo.
-Documentation
--------------
+- Issue #23801: Fix issue where cgi.FieldStorage did not always ignore the
+ entire preamble to a multipart body.
-- Issue #19548: Update the codecs module documentation to better cover the
- distinction between text encodings and other codecs, together with other
- clarifications. Patch by Martin Panter.
+Build
+-----
-- Issue #22914: Update the Python 2/3 porting HOWTO to describe a more automated
- approach.
+- Issue #23445: pydebug builds now use "gcc -Og" where possible, to make
+ the resulting executable faster.
-- Issue #21514: The documentation of the json module now refers to new JSON RFC
- 7159 instead of obsoleted RFC 4627.
+- Issue #23686: Update OS X 10.5 installer build to use OpenSSL 1.0.2a.
-Tools/Demos
------------
+C API
+-----
-- Issue #22314: pydoc now works when the LINES environment variable is set.
+- Issue #20204: Deprecation warning is now raised for builtin type without the
+ __module__ attribute.
Windows
-------
projects / python / commitdiff