__bytes__, __trunc__, and __float__ returning instances of subclasses of
bytes, int, and float to subclasses of bytes, int, and float correspondingly.
-- Issue #25388: Fixed tokenizer crash when processing undecodable source code
- with a null byte.
+- Issue #26478: Fix semantic bugs when using binary operators with dictionary
+ views and tuples.
-- Issue #22995: Default implementation of __reduce__ and __reduce_ex__ now
- rejects builtin types with not defined __new__.
+- Issue #26171: Fix possible integer overflow and heap corruption in
+ zipimporter.get_data().
-- Issue #24802: Avoid buffer overreads when int(), float(), compile(), exec()
- and eval() are passed bytes-like objects. These objects are not
- necessarily terminated by a null byte, but the functions assumed they were.
+- Issue #25660: Fix TAB key behaviour in REPL with readline.
-- Issue #24402: Fix input() to prompt to the redirected stdout when
- sys.stdout.fileno() fails.
+- Issue #25887: Raise a RuntimeError when a coroutine object is awaited
+ more than once.
-- Issue #24806: Prevent builtin types that are not allowed to be subclassed from
- being subclassed through multiple inheritance.
-- Issue #24848: Fixed a number of bugs in UTF-7 decoding of misformed data.
+Library
+-------
-- Issue #25280: Import trace messages emitted in verbose (-v) mode are no
- longer formatted twice.
+- Issue #27057: Fix os.set_inheritable() on Android, ioctl() is blocked by
+ SELinux and fails with EACCESS. The function now falls back to fcntl().
+ Patch written by Michał Bednarski.
-- Issue #25003: os.urandom() doesn't use getentropy() on Solaris because
- getentropy() is blocking, whereas os.urandom() should not block. getentropy()
- is supported since Solaris 11.3.
+- Issue #27014: Fix infinite recursion using typing.py. Thanks to Kalle Tuure!
-- Issue #25182: The stdprinter (used as sys.stderr before the io module is
- imported at startup) now uses the backslashreplace error handler.
+- Issue #14132: Fix urllib.request redirect handling when the target only has
+ a query string. Original fix by Ján Janech.
-- Issue #24891: Fix a race condition at Python startup if the file descriptor
- of stdin (0), stdout (1) or stderr (2) is closed while Python is creating
- sys.stdin, sys.stdout and sys.stderr objects. These attributes are now set
- to None if the creation of the object failed, instead of raising an OSError
- exception. Initial patch written by Marco Paolini.
+- Issue #17214: The "urllib.request" module now percent-encodes non-ASCII
+ bytes found in redirect target URLs. Some servers send Location header
+ fields with non-ASCII bytes, but "http.client" requires the request target
+ to be ASCII-encodable, otherwise a UnicodeEncodeError is raised. Based on
+ patch by Christian Heimes.
-- Issue #21167: NAN operations are now handled correctly when python is
- compiled with ICC even if -fp-model strict is not specified.
+- Issue #26892: Honor debuglevel flag in urllib.request.HTTPHandler. Patch
+ contributed by Chi Hsuan Yen.
-- Issue #4395: Better testing and documentation of binary operators.
- Patch by Martin Panter.
+- Issue #22274: In the subprocess module, allow stderr to be redirected to
+ stdout even when stdout is not redirected. Patch by Akira Li.
-- Issue #24467: Fixed possible buffer over-read in bytearray. The bytearray
- object now always allocates place for trailing null byte and it's buffer now
- is always null-terminated.
+- Issue #26807: mock_open 'files' no longer error on readline at end of file.
+ Patch from Yolanda Robla.
-- Issue #24115: Update uses of PyObject_IsTrue(), PyObject_Not(),
- PyObject_IsInstance(), PyObject_RichCompareBool() and _PyDict_Contains()
- to check for and handle errors correctly.
+- Issue #25745: Fixed leaking a userptr in curses panel destructor.
-- Issue #24257: Fixed system error in the comparison of faked
- types.SimpleNamespace.
+- Issue #26977: Removed unnecessary, and ignored, call to sum of squares helper
+ in statistics.pvariance.
-- Issue #22939: Fixed integer overflow in iterator object. Patch by
- Clement Rouault.
+- Issue #26881: The modulefinder module now supports extended opcode arguments.
-- Issue #23985: Fix a possible buffer overrun when deleting a slice from
- the front of a bytearray and then appending some other bytes data.
+- Issue #23815: Fixed crashes related to directly created instances of types in
+ _tkinter and curses.panel modules.
-- Issue #24102: Fixed exception type checking in standard error handlers.
+- Issue #17765: weakref.ref() no longer silently ignores keyword arguments.
+ Patch by Georg Brandl.
-- Issue #23757: PySequence_Tuple() incorrectly called the concrete list API
- when the data was a list subclass.
+- Issue #26873: xmlrpc now raises ResponseError on unsupported type tags
+ instead of silently return incorrect result.
-- Issue #24407: Fix crash when dict is mutated while being updated.
+- Issue #26711: Fixed the comparison of plistlib.Data with other types.
-- Issue #24096: Make warnings.warn_explicit more robust against mutation of the
- warnings.filters list.
+- Issue #24114: Fix an uninitialized variable in `ctypes.util`.
-- Issue #23996: Avoid a crash when a delegated generator raises an
- unnormalized StopIteration exception. Patch by Stefan Behnel.
+ The bug only occurs on SunOS when the ctypes implementation searches
+ for the `crle` program. Patch by Xiang Zhang. Tested on SunOS by
+ Kees Bos.
-- Issue #24022: Fix tokenizer crash when processing undecodable source code.
+- Issue #26864: In urllib.request, change the proxy bypass host checking
+ against no_proxy to be case-insensitive, and to not match unrelated host
+ names that happen to have a bypassed hostname as a suffix. Patch by Xiang
+ Zhang.
-- 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 #26634: recursive_repr() now sets __qualname__ of wrapper. Patch by
+ Xiang Zhang.
-- Issue #22977: Fixed formatting Windows error messages on Wine.
- Patch by Martin Panter.
+- Issue #26804: urllib.request will prefer lower_case proxy environment
+ variables over UPPER_CASE or Mixed_Case ones. Patch contributed by Hans-Peter
+ Jansen.
-- Issue #23803: Fixed str.partition() and str.rpartition() when a separator
- is wider then partitioned string.
+- Issue #26837: assertSequenceEqual() now correctly outputs non-stringified
+ differing items (like bytes in the -b mode). This affects assertListEqual()
+ and assertTupleEqual().
-- Issue #23192: Fixed generator lambdas. Patch by Bruno Cauet.
+- Issue #26041: Remove "will be removed in Python 3.7" from deprecation
+ messages of platform.dist() and platform.linux_distribution().
+ Patch by Kumaripaba Miyurusara Athukorala.
-- Issue #23629: Fix the default __sizeof__ implementation for variable-sized
- objects.
+- Issue #26822: itemgetter, attrgetter and methodcaller objects no longer
+ silently ignore keyword arguments.
-- Issue #24044: Fix possible null pointer dereference in list.sort in out of
- memory conditions.
+- Issue #26733: Disassembling a class now disassembles class and static methods.
+ Patch by Xiang Zhang.
-- Issue #21354: PyCFunction_New function is exposed by python DLL again.
+- Issue #26801: Fix error handling in :func:`shutil.get_terminal_size`, catch
+ :exc:`AttributeError` instead of :exc:`NameError`. Patch written by Emanuel
+ Barry.
-Library
--------
+- Issue #24838: tarfile's ustar and gnu formats now correctly calculate name
+ and link field limits for multibyte character encodings like utf-8.
-- Issue #24903: Fix regression in number of arguments compileall accepts when
- '-d' is specified. The check on the number of arguments has been dropped
- completely as it never worked correctly anyway.
+- Issue #26657: Fix directory traversal vulnerability with http.server on
+ Windows. This fixes a regression that was introduced in 3.3.4rc1 and
+ 3.4.0rc1. Based on patch by Philipp Hagemeister.
-- Issue #25764: In the subprocess module, preserve any exception caused by
- fork() failure when preexec_fn is used.
+- Issue #26717: Stop encoding Latin-1-ized WSGI paths with UTF-8. Patch by
+ Anthony Sottile.
-- Issue #6478: _strptime's regexp cache now is reset after changing timezone
- with time.tzset().
+- Issue #26735: Fix :func:`os.urandom` on Solaris 11.3 and newer when reading
+ more than 1,024 bytes: call ``getrandom()`` multiple times with a limit of
+ 1024 bytes per call.
-- Issue #25177: Fixed problem with the mean of very small and very large
- numbers. As a side effect, statistics.mean and statistics.variance should
- be significantly faster.
+- Issue #16329: Add .webm to mimetypes.types_map. Patch by Giampaolo Rodola'.
-- Issue #25718: Fixed copying object with state with boolean value is false.
+- Issue #13952: Add .csv to mimetypes.types_map. Patch by Geoff Wilson.
-- Issue #10131: Fixed deep copying of minidom documents. Based on patch
- by Marian Ganisin.
+- Issue #26709: Fixed Y2038 problem in loading binary PLists.
-- Issue #25725: Fixed a reference leak in pickle.loads() when unpickling
- invalid data including tuple instructions.
+- Issue #23735: Handle terminal resizing with Readline 6.3+ by installing our
+ own SIGWINCH handler. Patch by Eric Price.
-- Issue #25663: In the Readline completer, avoid listing duplicate global
- names, and search the global namespace before searching builtins.
+- Issue #26586: In http.server, respond with "413 Request header fields too
+ large" if there are too many header fields to parse, rather than killing
+ the connection and raising an unhandled exception. Patch by Xiang Zhang.
-- Issue #25688: Fixed file leak in ElementTree.iterparse() raising an error.
+- Issue #22854: Change BufferedReader.writable() and
+ BufferedWriter.readable() to always return False.
-- Issue #23914: Fixed SystemError raised by unpickler on broken pickle data.
+- Issue #25195: Fix a regression in mock.MagicMock. _Call is a subclass of
+ tuple (changeset 3603bae63c13 only works for classes) so we need to
+ implement __ne__ ourselves. Patch by Andrew Plummer.
-- Issue #25691: Fixed crash on deleting ElementTree.Element attributes.
+- Issue #26644: Raise ValueError rather than SystemError when a negative
+ length is passed to SSLSocket.recv() or read().
-- Issue #25624: ZipFile now always writes a ZIP_STORED header for directory
- entries. Patch by Dingyuan Wang.
+- Issue #23804: Fix SSL recv(0) and read(0) methods to return zero bytes
+ instead of up to 1024.
-- Issue #25583: Avoid incorrect errors raised by os.makedirs(exist_ok=True)
- when the OS gives priority to errors such as EACCES over EEXIST.
+- Issue #26616: Fixed a bug in datetime.astimezone() method.
-- Issue #25593: Change semantics of EventLoop.stop() in asyncio.
+- Issue #21925: :func:`warnings.formatwarning` now catches exceptions on
+ ``linecache.getline(...)`` to be able to log :exc:`ResourceWarning` emitted
+ late during the Python shutdown process.
-- Issue #6973: When we know a subprocess.Popen process has died, do
- not allow the send_signal(), terminate(), or kill() methods to do
- anything as they could potentially signal a different process.
+- Issue #24266: Ctrl+C during Readline history search now cancels the search
+ mode when compiled with Readline 7.
-- Issue #25578: Fix (another) memory leak in SSLSocket.getpeercer().
+- Issue #26560: Avoid potential ValueError in BaseHandler.start_response.
+ Initial patch by Peter Inglesby.
-- Issue #25590: In the Readline completer, only call getattr() once per
- attribute.
+- Issue #26313: ssl.py _load_windows_store_certs fails if windows cert store
+ is empty. Patch by Baji.
-- Issue #25498: Fix a crash when garbage-collecting ctypes objects created
- by wrapping a memoryview. This was a regression made in 3.4.3. Based
- on patch by Eryksun.
+- Issue #26569: Fix :func:`pyclbr.readmodule` and :func:`pyclbr.readmodule_ex`
+ to support importing packages.
-- Issue #18010: Fix the pydoc web server's module search function to handle
- exceptions from importing packages.
+- Issue #26499: Account for remaining Content-Length in
+ HTTPResponse.readline() and read1(). Based on patch by Silent Ghost.
+ Also document that HTTPResponse now supports these methods.
-- Issue #25510: fileinput.FileInput.readline() now returns b'' instead of ''
- at the end if the FileInput was opened with binary mode.
- Patch by Ryosuke Ito.
+- Issue #25320: Handle sockets in directories unittest discovery is scanning.
+ Patch from Victor van den Elzen.
-- Issue #25530: Disable the vulnerable SSLv3 protocol by default when creating
- ssl.SSLContext.
+- Issue #16181: cookiejar.http2time() now returns None if year is higher than
+ datetime.MAXYEAR.
-- Issue #25569: Fix memory leak in SSLSocket.getpeercert().
+- Issue #26513: Fixes platform module detection of Windows Server
-- Issue #21827: Fixed textwrap.dedent() for the case when largest common
- whitespace is a substring of smallest leading whitespace.
- Based on patch by Robert Li.
+- Issue #23718: Fixed parsing time in week 0 before Jan 1. Original patch by
+ Tamás Bence Gedai.
-- Issue #25471: Sockets returned from accept() shouldn't appear to be
- nonblocking.
+- Issue #20589: Invoking Path.owner() and Path.group() on Windows now raise
+ NotImplementedError instead of ImportError.
-- Issue #25441: asyncio: Raise error from drain() when socket is closed.
+- Issue #26177: Fixed the keys() method for Canvas and Scrollbar widgets.
-- Issue #25411: Improved Unicode support in SMTPHandler through better use of
- the email package. Thanks to user simon04 for the patch.
+- Issue #15068: Got rid of excessive buffering in the fileinput module.
+ The bufsize parameter is no longer used.
-- Issue #25380: Fixed protocol for the STACK_GLOBAL opcode in
- pickletools.opcodes.
+- Issue #2202: Fix UnboundLocalError in
+ AbstractDigestAuthHandler.get_algorithm_impls. Initial patch by Mathieu Dupuy.
-- Issue #23972: Updates asyncio datagram create method allowing reuseport
- and reuseaddr socket options to be set prior to binding the socket.
- Mirroring the existing asyncio create_server method the reuseaddr option
- for datagram sockets defaults to True if the O/S is 'posix' (except if the
- platform is Cygwin). Patch by Chris Laws.
+- Issue #25718: Fixed pickling and copying the accumulate() iterator with
+ total is None.
-- Issue #25304: Add asyncio.run_coroutine_threadsafe(). This lets you
- submit a coroutine to a loop from another thread, returning a
- concurrent.futures.Future. By Vincent Michel.
+- Issue #26475: Fixed debugging output for regular expressions with the (?x)
+ flag.
-- Issue #25319: When threading.Event is reinitialized, the underlying condition
- should use a regular lock rather than a recursive lock.
+- Issue #26457: Fixed the subnets() methods in IP network classes for the case
+ when resulting prefix length is equal to maximal prefix length.
+ Based on patch by Xiang Zhang.
-- Issue #25232: Fix CGIRequestHandler to split the query from the URL at the
- first question mark (?) rather than the last. Patch from Xiang Zhang.
+- Issue #26385: Remove the file if the internal open() call in
+ NamedTemporaryFile() fails. Patch by Silent Ghost.
-- Issue #24657: Prevent CGIRequestHandler from collapsing slashes in the
- query part of the URL as if it were a path. Patch from Xiang Zhang.
+- Issue #26402: Fix XML-RPC client to retry when the server shuts down a
+ persistent connection. This was a regression related to the new
+ http.client.RemoteDisconnected exception in 3.5.0a4.
-- Issue #22958: Constructor and update method of weakref.WeakValueDictionary
- now accept the self and the dict keyword arguments.
+- Issue #25913: Leading ``<~`` is optional now in base64.a85decode() with
+ adobe=True. Patch by Swati Jaiswal.
-- Issue #22609: Constructor of collections.UserDict now accepts the self keyword
- argument.
+- Issue #26186: Remove an invalid type check in importlib.util.LazyLoader.
-- Issue #25262. Added support for BINBYTES8 opcode in Python implementation of
- unpickler. Highest 32 bits of 64-bit size for BINUNICODE8 and BINBYTES8
- opcodes no longer silently ignored on 32-bit platforms in C implementation.
+- Issue #26367: importlib.__import__() raises SystemError like
+ builtins.__import__() when ``level`` is specified but without an accompanying
+ package specified.
-- Issue #25034: Fix string.Formatter problem with auto-numbering and
- nested format_specs. Patch by Anthon van der Neut.
+- Issue #26309: In the "socketserver" module, shut down the request (closing
+ the connected socket) when verify_request() returns false. Patch by Aviv
+ Palivoda.
-- Issue #25233: Rewrite the guts of asyncio.Queue and
- asyncio.Semaphore to be more understandable and correct.
+- Issue #25939: On Windows open the cert store readonly in ssl.enum_certificates.
-- Issue #23600: Default implementation of tzinfo.fromutc() was returning
- wrong results in some cases.
+- Issue #25995: os.walk() no longer uses FDs proportional to the tree depth.
-- Issue #25203: Failed readline.set_completer_delims() no longer left the
- module in inconsistent state.
+- Issue #26117: The os.scandir() iterator now closes file descriptor not only
+ when the iteration is finished, but when it was failed with error.
-- Prevent overflow in _Unpickler_Read.
+- Issue #25911: Restored support of bytes paths in os.walk() on Windows.
-- Issue #25047: The XML encoding declaration written by Element Tree now
- respects the letter case given by the user. This restores the ability to
- write encoding names in uppercase like "UTF-8", which worked in Python 2.
+- Issue #26045: Add UTF-8 suggestion to error message when posting a
+ non-Latin-1 string with http.client.
-- Issue #19143: platform module now reads Windows version from kernel32.dll to
- avoid compatibility shims.
+- Issue #12923: Reset FancyURLopener's redirect counter even if there is an
+ exception. Based on patches by Brian Brazil and Daniel Rocco.
-- Issue #23517: Fix rounding in fromtimestamp() and utcfromtimestamp() methods
- of datetime.datetime: microseconds are now rounded to nearest with ties
- going to nearest even integer (ROUND_HALF_EVEN), instead of being rounding
- towards zero (ROUND_DOWN). It's important that these methods use the same
- rounding mode than datetime.timedelta to keep the property:
- (datetime(1970,1,1) + timedelta(seconds=t)) == datetime.utcfromtimestamp(t).
- It also the rounding mode used by round(float) for example.
+- Issue #25945: Fixed a crash when unpickle the functools.partial object with
+ wrong state. Fixed a leak in failed functools.partial constructor.
+ "args" and "keywords" attributes of functools.partial have now always types
+ tuple and dict correspondingly.
-- Issue #24684: socket.socket.getaddrinfo() now calls
- PyUnicode_AsEncodedString() instead of calling the encode() method of the
- host, to handle correctly custom string with an encode() method which doesn't
- return a byte string. The encoder of the IDNA codec is now called directly
- instead of calling the encode() method of the string.
+- Issue #26202: copy.deepcopy() now correctly copies range() objects with
+ non-atomic attributes.
-- Issue #24982: shutil.make_archive() with the "zip" format now adds entries
- for directories (including empty directories) in ZIP file.
+- Issue #23076: Path.glob() now raises a ValueError if it's called with an
+ invalid pattern. Patch by Thomas Nyberg.
-- Issue #24857: Comparing call_args to a long sequence now correctly returns a
- boolean result instead of raising an exception. Patch by A Kaptur.
+- Issue #19883: Fixed possible integer overflows in zipimport.
-- Issue #25019: Fixed a crash caused by setting non-string key of expat parser.
- Based on patch by John Leitch.
+- Issue #26227: On Windows, getnameinfo(), gethostbyaddr() and
+ gethostbyname_ex() functions of the socket module now decode the hostname
+ from the ANSI code page rather than UTF-8.
-- Issue #24917: time_strftime() buffer over-read.
+- Issue #26147: xmlrpc now works with strings not encodable with used
+ non-UTF-8 encoding.
-- Issue #23144: Make sure that HTMLParser.feed() returns all the data, even
- when convert_charrefs is True.
+- Issue #25935: Garbage collector now breaks reference loops with OrderedDict.
-- Issue #16180: Exit pdb if file has syntax error, instead of trapping user
- in an infinite loop. Patch by Xavier de Gaye.
+- Issue #16620: Fixed AttributeError in msilib.Directory.glob().
-- Issue #21112: Fix regression in unittest.expectedFailure on subclasses.
- Patch from Berker Peksag.
+- Issue #26013: Added compatibility with broken protocol 2 pickles created
+ in old Python 3 versions (3.4.3 and lower).
-- Issue #24931: Instances of subclasses of namedtuples have their own __dict__
- which breaks the inherited __dict__ property and breaks the _asdict() method.
- Removed the __dict__ property to prevent the conflict and fixed _asdict().
+- Issue #25850: Use cross-compilation by default for 64-bit Windows.
-- Issue #24764: cgi.FieldStorage.read_multi() now ignores the Content-Length
- header in part headers. Patch written by Peter Landry and reviewed by Pierre
- Quentel.
+- Issue #17633: Improve zipimport's support for namespace packages.
-- Issue #24774: Fix docstring in http.server.test. Patch from Chiu-Hsiang Hsu.
+- Issue #24705: Fix sysconfig._parse_makefile not expanding ${} vars
+ appearing before $() vars.
-- Issue #21159: Improve message in configparser.InterpolationMissingOptionError.
- Patch from Łukasz Langa.
+- Issue #22138: Fix mock.patch behavior when patching descriptors. Restore
+ original values after patching. Patch contributed by Sean McCully.
-- Issue #23888: Handle fractional time in cookie expiry. Patch by ssh.
+- Issue #25672: In the ssl module, enable the SSL_MODE_RELEASE_BUFFERS mode
+ option if it is safe to do so.
- - Issue #22570: Add 'path' attribute to pathlib.Path objects,
- returning the same as str(), to make it more similar to DirEntry.
- Library code can now write getattr(p, 'path', p) to get the path as
- a string from a Path, a DirEntry, or a plain string. This is
- essentially a small one-off protocol.
-
-- Issue #23004: mock_open() now reads binary data correctly when the type of
- read_data is bytes. Initial patch by Aaron Hill.
+- Issue #26012: Don't traverse into symlinks for ** pattern in
+ pathlib.Path.[r]glob().
-- Issue #23652: Make it possible to compile the select module against the
- libc headers from the Linux Standard Base, which do not include some
- EPOLL macros. Patch by Matt Frank.
+- Issue #24120: Ignore PermissionError when traversing a tree with
+ pathlib.Path.[r]glob(). Patch by Ulrich Petri.
-- Issue #22932: Fix timezones in email.utils.formatdate.
- Patch from Dmitry Shachnev.
+- Issue #25447: fileinput now uses sys.stdin as-is if it does not have a
+ buffer attribute (restores backward compatibility).
-- Issue #23779: imaplib raises TypeError if authenticator tries to abort.
- Patch from Craig Holmquist.
+- Issue #25447: Copying the lru_cache() wrapper object now always works,
+ independedly from the type of the wrapped object (by returning the original
+ object unchanged).
-- Issue #23319: Fix ctypes.BigEndianStructure, swap correctly bytes. Patch
- written by Matthieu Gautier.
+- Issue #24103: Fixed possible use after free in ElementTree.XMLPullParser.
-- Issue #23254: Document how to close the TCPServer listening socket.
- Patch from Martin Panter.
+- Issue #25860: os.fwalk() no longer skips remaining directories when error
+ occurs. Original patch by Samson Lee.
-- Issue #19450: Update Windows and OS X installer builds to use SQLite 3.8.11.
+- Issue #25914: Fixed and simplified OrderedDict.__sizeof__.
-- Issue #23441: rcompleter now prints a tab character instead of displaying
- possible completions for an empty word. Initial patch by Martin Sekera.
+- Issue #25902: Fixed various refcount issues in ElementTree iteration.
-- Issue #24735: Fix invalid memory access in
- itertools.combinations_with_replacement().
+- Issue #25717: Restore the previous behaviour of tolerating most fstat()
+ errors when opening files. This was a regression in 3.5a1, and stopped
+ anonymous temporary files from working in special cases.
-- Issue #17527: Add PATCH to wsgiref.validator. Patch from Luca Sbardella.
+- Issue #24903: Fix regression in number of arguments compileall accepts when
+ '-d' is specified. The check on the number of arguments has been dropped
+ completely as it never worked correctly anyway.
-- Issue #24683: Fixed crashes in _json functions called with arguments of
- inappropriate type.
+- Issue #25764: In the subprocess module, preserve any exception caused by
+ fork() failure when preexec_fn is used.
-- Issue #21697: shutil.copytree() now correctly handles symbolic links that
- point to directories. Patch by Eduardo Seabra and Thomas Kluyver.
+- Issue #6478: _strptime's regexp cache now is reset after changing timezone
+ with time.tzset().
-- Issue #24620: Random.setstate() now validates the value of state last element.
+- Issue #14285: When executing a package with the "python -m package" option,
+ and package initialization fails, a proper traceback is now reported. The
+ "runpy" module now lets exceptions from package initialization pass back to
+ the caller, rather than raising ImportError.
-- Issue #22153: Improve unittest docs. Patch from Martin Panter and evilzero.
+- Issue #19771: Also in runpy and the "-m" option, omit the irrelevant
+ message ". . . is a package and cannot be directly executed" if the package
+ could not even be initialized (e.g. due to a bad ``*.pyc`` file).
-- Issue #24206: Fixed __eq__ and __ne__ methods of inspect classes.
+- Issue #25177: Fixed problem with the mean of very small and very large
+ numbers. As a side effect, statistics.mean and statistics.variance should
+ be significantly faster.
-- Issue #21750: mock_open.read_data can now be read from each instance, as it
- could in Python 3.3.
+- Issue #25718: Fixed copying object with state with boolean value is false.
-- Issue #23247: Fix a crash in the StreamWriter.reset() of CJK codecs.
+- Issue #10131: Fixed deep copying of minidom documents. Based on patch
+ by Marian Ganisin.
-- Issue #18622: unittest.mock.mock_open().reset_mock would recurse infinitely.
- Patch from Nicola Palumbo and Laurent De Buyst.
+- Issue #25725: Fixed a reference leak in pickle.loads() when unpickling
+ invalid data including tuple instructions.
-- Issue #24608: chunk.Chunk.read() now always returns bytes, not str.
+- Issue #25663: In the Readline completer, avoid listing duplicate global
+ names, and search the global namespace before searching builtins.
-- Issue #18684: Fixed reading out of the buffer in the re module.
+- Issue #25688: Fixed file leak in ElementTree.iterparse() raising an error.
-- Issue #24259: tarfile now raises a ReadError if an archive is truncated
- inside a data segment.
+- Issue #23914: Fixed SystemError raised by unpickler on broken pickle data.
-- Issue #24552: Fix use after free in an error case of the _pickle module.
+- Issue #25691: Fixed crash on deleting ElementTree.Element attributes.
-- Issue #24514: tarfile now tolerates number fields consisting of only
- whitespace.
+- Issue #25624: ZipFile now always writes a ZIP_STORED header for directory
+ entries. Patch by Dingyuan Wang.
-- Issue #19176: Fixed doctype() related bugs in C implementation of ElementTree.
- A deprecation warning no longer issued by XMLParser subclass with default
- doctype() method. Direct call of doctype() now issues a warning. Parser's
- doctype() now is not called if target's doctype() is called. Based on patch
- by Martin Panter.
+- Skip getaddrinfo if host is already resolved.
+ Patch by A. Jesse Jiryu Davis.
-- Issue #20387: Restore semantic round-trip correctness in tokenize/untokenize
- for tab-indented blocks.
+- Add asyncio.timeout() context manager.
-- Issue #24456: Fixed possible buffer over-read in adpcm2lin() and lin2adpcm()
- functions of the audioop module.
+- Issue #26050: Add asyncio.StreamReader.readuntil() method.
+ Patch by Марк Коренберг.
-- Issue #24336: The contextmanager decorator now works with functions with
- keyword arguments called "func" and "self". Patch by Martin Panter.
+- Issue #25924: Avoid unnecessary serialization of getaddrinfo(3) calls on
+ OS X versions 10.5 or higher. Original patch by A. Jesse Jiryu Davis.
-- Issue #24489: ensure a previously set C errno doesn't disturb cmath.polar().
+- Issue #26406: Avoid unnecessary serialization of getaddrinfo(3) calls on
+ current versions of OpenBSD and NetBSD. Patch by A. Jesse Jiryu Davis.
-- Issue #5633: Fixed timeit when the statement is a string and the setup is not.
+- Issue #26848: Fix asyncio/subprocess.communicate() to handle empty input.
+ Patch by Jack O'Connor.
-- Issue #24326: Fixed audioop.ratecv() with non-default weightB argument.
- Original patch by David Moore.
+- Issue #27040: Add loop.get_exception_handler method
-- Issue #23840: tokenize.open() now closes the temporary binary file on error
- to fix a resource warning.
+- Issue #27041: asyncio: Add loop.create_future method
-- Issue #24257: Fixed segmentation fault in sqlite3.Row constructor with faked
- cursor type.
+Documentation
+-------------
-- Issue #22107: tempfile.gettempdir() and tempfile.mkdtemp() now try again
- when a directory with the chosen name already exists on Windows as well as
- on Unix. tempfile.mkstemp() now fails early if parent directory is not
- valid (not exists or is a file) on Windows.
+- Issue #26736: Used HTTPS for external links in the documentation if possible.
-- Issue #6598: Increased time precision and random number range in
- email.utils.make_msgid() to strengthen the uniqueness of the message ID.
+- Issue #6953: Rework the Readline module documentation to group related
+ functions together, and add more details such as what underlying Readline
+ functions and variables are accessed.
-- Issue #24091: Fixed various crashes in corner cases in C implementation of
- ElementTree.
+- Issue #23606: Adds note to ctypes documentation regarding cdll.msvcrt.
-- Issue #21931: msilib.FCICreate() now raises TypeError in the case of a bad
- argument instead of a ValueError with a bogus FCI error number.
- Patch by Jeffrey Armstrong.
+- Issue #25500: Fix documentation to not claim that __import__ is searched for
+ in the global scope.
-- Issue #23796: peek and read1 methods of BufferedReader now raise ValueError
- if they called on a closed object. Patch by John Hergenroeder.
+Tests
+-----
-- Issue #24521: Fix possible integer overflows in the pickle module.
+- Issue #26523: The multiprocessing thread pool (multiprocessing.dummy.Pool)
+ was untested.
-- Issue #22931: Allow '[' and ']' in cookie values.
+- Issue #26015: Added new tests for pickling iterators of mutable sequences.
-- Issue #20274: Remove ignored and erroneous "kwargs" parameters from three
- METH_VARARGS methods on _sqlite.Connection.
+- Issue #26325: Added test.support.check_no_resource_warning() to check that
+ no ResourceWarning is emitted.
-- Issue #24094: Fix possible crash in json.encode with poorly behaved dict
- subclasses.
+- Issue #25940: Changed test_ssl to use self-signed.pythontest.net. This
+ avoids relying on svn.python.org, which recently changed root certificate.
-- Asyncio issue 222 / PR 231 (Victor Stinner) -- fix @coroutine
- functions without __name__.
+- Issue #25616: Tests for OrderedDict are extracted from test_collections
+ into separate file test_ordered_dict.
-- Issue #9246: On POSIX, os.getcwd() now supports paths longer than 1025 bytes.
- Patch written by William Orr.
+- Issue #26583: Skip test_timestamp_overflow in test_import if bytecode
+ files cannot be written.
-- The keywords attribute of functools.partial is now always a dictionary.
+Build
+-----
-- Issues #24099, #24100, and #24101: Fix free-after-use bug in heapq's siftup
- and siftdown functions.
+- Issue #22359: Disable the rules for running _freeze_importlib and pgen when
+ cross-compiling. The output of these programs is normally saved with the
+ source code anyway, and is still regenerated when doing a native build.
+ Patch by Xavier de Gaye.
-- Backport collections.deque fixes from Python 3.5. Prevents reentrant badness
- during deletion by deferring the decref until the container has been restored
- to a consistent state.
+- Issue #21668: Link audioop, _datetime, _ctypes_test modules to libm,
+ except on Mac OS X. Patch written by Xavier de Gaye.
-- Issue #23008: Fixed resolving attributes with boolean value is False in pydoc.
+- Issue #25702: A --with-lto configure option has been added that will
+ enable link time optimizations at build time during a make profile-opt.
+ Some compilers and toolchains are known to not produce stable code when
+ using LTO, be sure to test things thoroughly before relying on it.
+ It can provide a few % speed up over profile-opt alone.
-- Fix asyncio issue 235: LifoQueue and PriorityQueue's put didn't
- increment unfinished tasks (this bug was introduced in 3.4.3 when
- JoinableQueue was merged with Queue).
+- Issue #26624: Adds validation of ucrtbase[d].dll version with warning
+ for old versions.
-- Issue #23908: os functions now reject paths with embedded null character
- on Windows instead of silently truncate them.
+- Issue #17603: Avoid error about nonexistant fileblocks.o file by using a
+ lower-level check for st_blocks in struct stat.
-- Issue #23728: binascii.crc_hqx() could return an integer outside of the range
- 0-0xffff for empty data.
+- Issue #26079: Fixing the build output folder for tix-8.4.3.6. Patch by
+ Bjoern Thiel.
-- Issue #23811: Add missing newline to the PyCompileError error message.
- Patch by Alex Shkop.
+- Issue #26465: Update Windows builds to use OpenSSL 1.0.2g.
-- Issue #17898: Fix exception in gettext.py when parsing certain plural forms.
+- Issue #24421: Compile Modules/_math.c once, before building extensions.
+ Previously it could fail to compile properly if the math and cmath builds
+ were concurrent.
-- Issue #22982: Improve BOM handling when seeking to multiple positions of
- a writable text file.
+- Issue #25348: Added ``--pgo`` and ``--pgo-job`` arguments to
+ ``PCbuild\build.bat`` for building with Profile-Guided Optimization. The
+ old ``PCbuild\build_pgo.bat`` script is now deprecated, and simply calls
+ ``PCbuild\build.bat --pgo %*``.
-- 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 #25827: Add support for building with ICC to ``configure``, including
+ a new ``--with-icc`` flag.
-- Issue #23881: urllib.request.ftpwrapper constructor now closes the socket if
- the FTP connection failed to fix a ResourceWarning.
+- Issue #25696: Fix installation of Python on UNIX with make -j9.
-- Issue #23400: Raise same exception on both Python 2 and 3 if sem_open is not
- available. Patch by Davin Potts.
+- Issue #26465: Update OS X 10.5+ 32-bit-only installer to build
+ and link with OpenSSL 1.0.2g.
-- 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 #26268: Update Windows builds to use OpenSSL 1.0.2f.
-- Issue #23338: Fixed formatting ctypes error messages on Cygwin.
- Patch by Makoto Kato.
+- Issue #25136: Support Apple Xcode 7's new textual SDK stub libraries.
-- Issue #16840: Tkinter now supports 64-bit integers added in Tcl 8.4 and
- arbitrary precision integers added in Tcl 8.5.
+- Issue #24324: Do not enable unreachable code warnings when using
+ gcc as the option does not work correctly in older versions of gcc
+ and has been silently removed as of gcc-4.5.
-- Issue #23834: Fix socket.sendto(), use the C Py_ssize_t type to store the
- result of sendto() instead of the C int type.
+Windows
+-------
-- Issue #21526: Tkinter now supports new boolean type in Tcl 8.5.
+- Issue #27053: Updates make_zip.py to correctly generate library ZIP file.
-- Issue #23838: linecache now clears the cache and returns an empty result on
- MemoryError.
+- Issue #26268: Update the prepare_ssl.py script to handle OpenSSL releases
+ that don't include the contents of the include directory (that is, 1.0.2e
+ and later).
-- 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 #26071: bdist_wininst created binaries fail to start and find
+ 32bit Python
-- Issue #23745: The new email header parser now handles duplicate MIME
- parameter names without error, similar to how get_param behaves.
+- Issue #26073: Update the list of magic numbers in launcher
-- 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 #26065: Excludes venv from library when generating embeddable
+ distro.
-- Issue #23742: ntpath.expandvars() no longer loses unbalanced single quotes.
+Tools/Demos
+-----------
-- Issue #21802: The reader in BufferedRWPair now is closed even when closing
- writer failed in BufferedRWPair.close().
+- Issue #26799: Fix python-gdb.py: don't get C types once when the Python code
+ is loaded, but get C types on demand. The C types can change if
+ python-gdb.py is loaded before the Python executable. Patch written by Thomas
+ Ilsche.
-- 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 #26271: Fix the Freeze tool to properly use flags passed through
+ configure. Patch by Daniel Shaulov.
-- Issue #21560: An attempt to write a data of wrong type no longer cause
- GzipFile corruption. Original patch by Wolfgang Maier.
+- Issue #26489: Add dictionary unpacking support to Tools/parser/unparse.py.
+ Patch by Guo Ci Teo.
-- Issue #23647: Increase impalib's MAXLINE to accommodate modern mailbox sizes.
+- Issue #26316: Fix variable name typo in Argument Clinic.
-- 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 #22351: The nntplib.NNTP constructor no longer leaves the connection
- and socket open until the garbage collector cleans them up. Patch by
- Martin Panter.
+What's New in Python 3.5.1 final?
+=================================
-- Issue #23136: _strptime now uniformly handles all days in week 0, including
- Dec 30 of previous year. Based on patch by Jim Carroll.
+Release date: 2015-12-06
-- Issue #23700: Iterator of NamedTemporaryFile now keeps a reference to
- NamedTemporaryFile instance. Patch by Bohuslav Kabrda.
+Core and Builtins
+-----------------
-- Issue #22903: The fake test case created by unittest.loader when it fails
- importing a test module is now picklable.
+- Issue #25709: Fixed problem with in-place string concatenation and
+ utf-8 cache.
-- Issue #23568: Add rdivmod support to MagicMock() objects.
- Patch by Håkan Lövdahl.
+Windows
+-------
-- Issue #23138: Fixed parsing cookies with absent keys or values in cookiejar.
- Patch by Demian Brecht.
+- Issue #25715: Python 3.5.1 installer shows wrong upgrade path and incorrect
+ logic for launcher detection.
-- Issue #23051: multiprocessing.Pool methods imap() and imap_unordered() now
- handle exceptions raised by an iterator. Patch by Alon Diamant and Davin
- Potts.
-- Issue #22928: Disabled HTTP header injections in http.client.
- Original patch by Demian Brecht.
+What's New in Python 3.5.1 release candidate 1?
+===============================================
-- Issue #23615: Modules bz2, tarfile and tokenize now can be reloaded with
- imp.reload(). Patch by Thomas Kluyver.
+Release date: 2015-11-22
-- Issue #23476: In the ssl module, enable OpenSSL's X509_V_FLAG_TRUSTED_FIRST
- flag on certificate stores when it is available.
+Core and Builtins
+-----------------
-- 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 #25630: Fix a possible segfault during argument parsing in functions
+ that accept filesystem paths.
-- Issue #23504: Added an __all__ to the types module.
+- Issue #23564: Fixed a partially broken sanity check in the _posixsubprocess
+ internals regarding how fds_to_pass were passed to the child. The bug had
+ no actual impact as subprocess.py already avoided it.
-- Issue #20204: Added the __module__ attribute to _tkinter classes.
+- Issue #25388: Fixed tokenizer crash when processing undecodable source code
+ with a null byte.
-- Issue #23521: Corrected pure python implementation of timedelta division.
+- Issue #25462: The hash of the key now is calculated only once in most
+ operations in C implementation of OrderedDict.
- * Eliminated OverflowError from timedelta * float for some floats;
- * Corrected rounding in timedlta true division.
+- Issue #22995: Default implementation of __reduce__ and __reduce_ex__ now
+ rejects builtin types with not defined __new__.
-- 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 #25555: Fix parser and AST: fill lineno and col_offset of "arg" node
+ when compiling AST from Python objects.
-- Issue #6639: Module-level turtle functions no longer raise TclError after
- closing the window.
+- Issue #24802: Avoid buffer overreads when int(), float(), compile(), exec()
+ and eval() are passed bytes-like objects. These objects are not
+ necessarily terminated by a null byte, but the functions assumed they were.
-- Issues #814253, #9179: Warnings now are raised when group references and
- conditional group references are used in lookbehind assertions in regular
- expressions.
+- Issue #24726: Fixed a crash and leaking NULL in repr() of OrderedDict that
+ was mutated by direct calls of dict methods.
-- 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 #25449: Iterating OrderedDict with keys with unstable hash now raises
+ KeyError in C implementations as well as in Python implementation.
-- Issue #5700: io.FileIO() called flush() after closing the file.
- flush() was not called in close() if closefd=False.
+- Issue #25395: Fixed crash when highly nested OrderedDict structures were
+ garbage collected.
-- Issue #23374: Fixed pydoc failure with non-ASCII files when stdout encoding
- differs from file system encoding (e.g. on Mac OS).
+- Issue #25274: sys.setrecursionlimit() now raises a RecursionError if the new
+ recursion limit is too low depending at the current recursion depth. Modify
+ also the "lower-water mark" formula to make it monotonic. This mark is used
+ to decide when the overflowed flag of the thread state is reset.
-- Issue #23481: Remove RC4 from the SSL module's default cipher list.
+- Issue #24402: Fix input() to prompt to the redirected stdout when
+ sys.stdout.fileno() fails.
-- Issue #21548: Fix pydoc.synopsis() and pydoc.apropos() on modules with empty
- docstrings.
+- Issue #24806: Prevent builtin types that are not allowed to be subclassed from
+ being subclassed through multiple inheritance.
-- Issue #22885: Fixed arbitrary code execution vulnerability in the dbm.dumb
- module. Original patch by Claudiu Popa.
+- Issue #24848: Fixed a number of bugs in UTF-7 decoding of misformed data.
-- Issue #23146: Fix mishandling of absolute Windows paths with forward
- slashes in pathlib.
+- Issue #25280: Import trace messages emitted in verbose (-v) mode are no
+ longer formatted twice.
-- Issue #23421: Fixed compression in tarfile CLI. Patch by wdv4758h.
+- Issue #25003: On Solaris 11.3 or newer, os.urandom() now uses the
+ getrandom() function instead of the getentropy() function. The getentropy()
+ function is blocking to generate very good quality entropy, os.urandom()
+ doesn't need such high-quality entropy.
-- Issue #23367: Fix possible overflows in the unicodedata module.
+- Issue #25182: The stdprinter (used as sys.stderr before the io module is
+ imported at startup) now uses the backslashreplace error handler.
-- Issue #23361: Fix possible overflow in Windows subprocess creation code.
+- Issue #25131: Make the line number and column offset of set/dict literals and
+ comprehensions correspond to the opening brace.
-- Issue #23801: Fix issue where cgi.FieldStorage did not always ignore the
- entire preamble to a multipart body.
+- Issue #25150: Hide the private _Py_atomic_xxx symbols from the public
+ Python.h header to fix a compilation error with OpenMP. PyThreadState_GET()
+ becomes an alias to PyThreadState_Get() to avoid ABI incompatibilies.
-- Issue #23310: Fix MagicMock's initializer to work with __methods__, just
- like configure_mock(). Patch by Kasia Jachim.
+Library
+-------
-- asyncio: New event loop APIs: set_task_factory() and get_task_factory().
+- Issue #25626: Change three zlib functions to accept sizes that fit in
+ Py_ssize_t, but internally cap those sizes to UINT_MAX. This resolves a
+ regression in 3.5 where GzipFile.read() failed to read chunks larger than 2
+ or 4 GiB. The change affects the zlib.Decompress.decompress() max_length
+ parameter, the zlib.decompress() bufsize parameter, and the
+ zlib.Decompress.flush() length parameter.
-- asyncio: async() function is deprecated in favour of ensure_future().
+- Issue #25583: Avoid incorrect errors raised by os.makedirs(exist_ok=True)
+ when the OS gives priority to errors such as EACCES over EEXIST.
-- Issue #23898: Fix inspect.classify_class_attrs() to support attributes
- with overloaded __eq__ and __bool__. Patch by Mike Bayer.
+- Issue #25593: Change semantics of EventLoop.stop() in asyncio.
-- Issue #24298: Fix inspect.signature() to correctly unwrap wrappers
- around bound methods.
+- Issue #6973: When we know a subprocess.Popen process has died, do
+ not allow the send_signal(), terminate(), or kill() methods to do
+ anything as they could potentially signal a different process.
-- Issue #23572: Fixed functools.singledispatch on classes with falsy
- metaclasses. Patch by Ethan Furman.
+- Issue #25590: In the Readline completer, only call getattr() once per
+ attribute.
-IDLE
-----
+- Issue #25498: Fix a crash when garbage-collecting ctypes objects created
+ by wrapping a memoryview. This was a regression made in 3.5a1. Based
+ on patch by Eryksun.
-- Issue 15348: Stop the debugger engine (normally in a user process)
- before closing the debugger window (running in the IDLE process).
- This prevents the RuntimeErrors that were being caught and ignored.
+- Issue #25584: Added "escape" to the __all__ list in the glob module.
-- Issue #24455: Prevent IDLE from hanging when a) closing the shell while the
- debugger is active (15347); b) closing the debugger with the [X] button
- (15348); and c) activating the debugger when already active (24455).
- The patch by Mark Roseman does this by making two changes.
- 1. Suspend and resume the gui.interaction method with the tcl vwait
- mechanism intended for this purpose (instead of root.mainloop & .quit).
- 2. In gui.run, allow any existing interaction to terminate first.
+- Issue #25584: Fixed recursive glob() with patterns starting with '\*\*'.
-- Change 'The program' to 'Your program' in an IDLE 'kill program?' message
- to make it clearer that the program referred to is the currently running
- user program, not IDLE itself.
+- Issue #25446: Fix regression in smtplib's AUTH LOGIN support.
-- Issue #24750: Improve the appearance of the IDLE editor window status bar.
- Patch by Mark Roseman.
+- Issue #18010: Fix the pydoc web server's module search function to handle
+ exceptions from importing packages.
-- Issue #25313: Change the handling of new built-in text color themes to better
- address the compatibility problem introduced by the addition of IDLE Dark.
- Consistently use the revised idleConf.CurrentTheme everywhere in idlelib.
+- Issue #25554: Got rid of circular references in regular expression parsing.
-- Issue #24782: Extension configuration is now a tab in the IDLE Preferences
- dialog rather than a separate dialog. The former tabs are now a sorted
- list. Patch by Mark Roseman.
+- Issue #25510: fileinput.FileInput.readline() now returns b'' instead of ''
+ at the end if the FileInput was opened with binary mode.
+ Patch by Ryosuke Ito.
-- Issue #22726: Re-activate the config dialog help button with some content
- about the other buttons and the new IDLE Dark theme.
+- Issue #25503: Fixed inspect.getdoc() for inherited docstrings of properties.
+ Original patch by John Mark Vandenberg.
-- Issue #24820: IDLE now has an 'IDLE Dark' built-in text color theme.
- It is more or less IDLE Classic inverted, with a cobalt blue background.
- Strings, comments, keywords, ... are still green, red, orange, ... .
+- Issue #25515: Always use os.urandom as a source of randomness in uuid.uuid4.
+
+- Issue #21827: Fixed textwrap.dedent() for the case when largest common
+ whitespace is a substring of smallest leading whitespace.
+ Based on patch by Robert Li.
+
+- Issue #25447: The lru_cache() wrapper objects now can be copied and pickled
+ (by returning the original object unchanged).
+
+- Issue #25390: typing: Don't crash on Union[str, Pattern].
+
+- Issue #25441: asyncio: Raise error from drain() when socket is closed.
+
+- Issue #25410: Cleaned up and fixed minor bugs in C implementation of
+ OrderedDict.
+
+- Issue #25411: Improved Unicode support in SMTPHandler through better use of
+ the email package. Thanks to user simon04 for the patch.
+
+- Issue #25407: Remove mentions of the formatter module being removed in
+ Python 3.6.
+
+- Issue #25406: Fixed a bug in C implementation of OrderedDict.move_to_end()
+ that caused segmentation fault or hang in iterating after moving several
+ items to the start of ordered dict.
+
+- Issue #25364: zipfile now works in threads disabled builds.
+
+- Issue #25328: smtpd's SMTPChannel now correctly raises a ValueError if both
+ decode_data and enable_SMTPUTF8 are set to true.
+
+- Issue #25316: distutils raises OSError instead of DistutilsPlatformError
+ when MSVC is not installed.
+
+- Issue #25380: Fixed protocol for the STACK_GLOBAL opcode in
+ pickletools.opcodes.
+
+- Issue #23972: Updates asyncio datagram create method allowing reuseport
+ and reuseaddr socket options to be set prior to binding the socket.
+ Mirroring the existing asyncio create_server method the reuseaddr option
+ for datagram sockets defaults to True if the O/S is 'posix' (except if the
+ platform is Cygwin). Patch by Chris Laws.
+
+- Issue #25304: Add asyncio.run_coroutine_threadsafe(). This lets you
+ submit a coroutine to a loop from another thread, returning a
+ concurrent.futures.Future. By Vincent Michel.
+
+- Issue #25232: Fix CGIRequestHandler to split the query from the URL at the
+ first question mark (?) rather than the last. Patch from Xiang Zhang.
+
+- Issue #24657: Prevent CGIRequestHandler from collapsing slashes in the
+ query part of the URL as if it were a path. Patch from Xiang Zhang.
+
+- Issue #24483: C implementation of functools.lru_cache() now calculates key's
+ hash only once.
+
+- Issue #22958: Constructor and update method of weakref.WeakValueDictionary
+ now accept the self and the dict keyword arguments.
+
+- Issue #22609: Constructor of collections.UserDict now accepts the self keyword
+ argument.
+
+- Issue #25111: Fixed comparison of traceback.FrameSummary.
+
+- Issue #25262. Added support for BINBYTES8 opcode in Python implementation of
+ unpickler. Highest 32 bits of 64-bit size for BINUNICODE8 and BINBYTES8
+ opcodes no longer silently ignored on 32-bit platforms in C implementation.
+
+- Issue #25034: Fix string.Formatter problem with auto-numbering and
+ nested format_specs. Patch by Anthon van der Neut.
+
+- Issue #25233: Rewrite the guts of asyncio.Queue and
+ asyncio.Semaphore to be more understandable and correct.
+
+- Issue #25203: Failed readline.set_completer_delims() no longer left the
+ module in inconsistent state.
+
+- Issue #23600: Default implementation of tzinfo.fromutc() was returning
+ wrong results in some cases.
+
+- Issue #23329: Allow the ssl module to be built with older versions of
+ LibreSSL.
+
+- Prevent overflow in _Unpickler_Read.
+
+- Issue #25047: The XML encoding declaration written by Element Tree now
+ respects the letter case given by the user. This restores the ability to
+ write encoding names in uppercase like "UTF-8", which worked in Python 2.
+
+- Issue #25135: Make deque_clear() safer by emptying the deque before clearing.
+ This helps avoid possible reentrancy issues.
+
+- Issue #19143: platform module now reads Windows version from kernel32.dll to
+ avoid compatibility shims.
+
+- Issue #25092: Fix datetime.strftime() failure when errno was already set to
+ EINVAL.
+
+- Issue #23517: Fix rounding in fromtimestamp() and utcfromtimestamp() methods
+ of datetime.datetime: microseconds are now rounded to nearest with ties
+ going to nearest even integer (ROUND_HALF_EVEN), instead of being rounding
+ towards minus infinity (ROUND_FLOOR). It's important that these methods use
+ the same rounding mode than datetime.timedelta to keep the property:
+ (datetime(1970,1,1) + timedelta(seconds=t)) == datetime.utcfromtimestamp(t).
+ It also the rounding mode used by round(float) for example.
+
+- Issue #25155: Fix datetime.datetime.now() and datetime.datetime.utcnow() on
+ Windows to support date after year 2038. It was a regression introduced in
+ Python 3.5.0.
+
+- Issue #25108: Omitted internal frames in traceback functions print_stack(),
+ format_stack(), and extract_stack() called without arguments.
+
+- Issue #25118: Fix a regression of Python 3.5.0 in os.waitpid() on Windows.
+
+- Issue #24684: socket.socket.getaddrinfo() now calls
+ PyUnicode_AsEncodedString() instead of calling the encode() method of the
+ host, to handle correctly custom string with an encode() method which doesn't
+ return a byte string. The encoder of the IDNA codec is now called directly
+ instead of calling the encode() method of the string.
+
+- Issue #25060: Correctly compute stack usage of the BUILD_MAP opcode.
+
+- Issue #24857: Comparing call_args to a long sequence now correctly returns a
+ boolean result instead of raising an exception. Patch by A Kaptur.
+
+- Issue #23144: Make sure that HTMLParser.feed() returns all the data, even
+ when convert_charrefs is True.
+
+- Issue #24982: shutil.make_archive() with the "zip" format now adds entries
+ for directories (including empty directories) in ZIP file.
+
+- Issue #25019: Fixed a crash caused by setting non-string key of expat parser.
+ Based on patch by John Leitch.
+
+- Issue #16180: Exit pdb if file has syntax error, instead of trapping user
+ in an infinite loop. Patch by Xavier de Gaye.
+
+- Issue #24891: Fix a race condition at Python startup if the file descriptor
+ of stdin (0), stdout (1) or stderr (2) is closed while Python is creating
+ sys.stdin, sys.stdout and sys.stderr objects. These attributes are now set
+ to None if the creation of the object failed, instead of raising an OSError
+ exception. Initial patch written by Marco Paolini.
+
+- Issue #24992: Fix error handling and a race condition (related to garbage
+ collection) in collections.OrderedDict constructor.
+
+- Issue #24881: Fixed setting binary mode in Python implementation of FileIO
+ on Windows and Cygwin. Patch from Akira Li.
+
+- Issue #25578: Fix (another) memory leak in SSLSocket.getpeercer().
+
+- Issue #25530: Disable the vulnerable SSLv3 protocol by default when creating
+ ssl.SSLContext.
+
+- Issue #25569: Fix memory leak in SSLSocket.getpeercert().
+
+- Issue #25471: Sockets returned from accept() shouldn't appear to be
+ nonblocking.
+
+- Issue #25319: When threading.Event is reinitialized, the underlying condition
+ should use a regular lock rather than a recursive lock.
+
+- Issue #21112: Fix regression in unittest.expectedFailure on subclasses.
+ Patch from Berker Peksag.
+
+- Issue #24764: cgi.FieldStorage.read_multi() now ignores the Content-Length
+ header in part headers. Patch written by Peter Landry and reviewed by Pierre
+ Quentel.
+
+- Issue #24913: Fix overrun error in deque.index().
+ Found by John Leitch and Bryce Darling.
+
+- Issue #24774: Fix docstring in http.server.test. Patch from Chiu-Hsiang Hsu.
+
+- Issue #21159: Improve message in configparser.InterpolationMissingOptionError.
+ Patch from Łukasz Langa.
+
+- Issue #20362: Honour TestCase.longMessage correctly in assertRegex.
+ Patch from Ilia Kurenkov.
+
+- Issue #23572: Fixed functools.singledispatch on classes with falsy
+ metaclasses. Patch by Ethan Furman.
+
+- asyncio: ensure_future() now accepts awaitable objects.
+
+IDLE
+----
+
+- Issue 15348: Stop the debugger engine (normally in a user process)
+ before closing the debugger window (running in the IDLE process).
+ This prevents the RuntimeErrors that were being caught and ignored.
+
+- Issue #24455: Prevent IDLE from hanging when a) closing the shell while the
+ debugger is active (15347); b) closing the debugger with the [X] button
+ (15348); and c) activating the debugger when already active (24455).
+ The patch by Mark Roseman does this by making two changes.
+ 1. Suspend and resume the gui.interaction method with the tcl vwait
+ mechanism intended for this purpose (instead of root.mainloop & .quit).
+ 2. In gui.run, allow any existing interaction to terminate first.
+
+- Change 'The program' to 'Your program' in an IDLE 'kill program?' message
+ to make it clearer that the program referred to is the currently running
+ user program, not IDLE itself.
+
+- Issue #24750: Improve the appearance of the IDLE editor window status bar.
+ Patch by Mark Roseman.
+
+- Issue #25313: Change the handling of new built-in text color themes to better
+ address the compatibility problem introduced by the addition of IDLE Dark.
+ Consistently use the revised idleConf.CurrentTheme everywhere in idlelib.
+
+- Issue #24782: Extension configuration is now a tab in the IDLE Preferences
+ dialog rather than a separate dialog. The former tabs are now a sorted
+ list. Patch by Mark Roseman.
+
+- Issue #22726: Re-activate the config dialog help button with some content
+ about the other buttons and the new IDLE Dark theme.
+
+- Issue #24820: IDLE now has an 'IDLE Dark' built-in text color theme.
+ It is more or less IDLE Classic inverted, with a cobalt blue background.
+ Strings, comments, keywords, ... are still green, red, orange, ... .
To use it with IDLEs released before November 2015, hit the
'Save as New Custom Theme' button and enter a new name,
such as 'Custom Dark'. The custom theme will work with any IDLE
projects / python / commitdiff