3.5.2rc1 - Cpython — ContextQMD

.. bpo: 26556 .. date: 9636 .. nonce: v5j2uL .. release date: 2016-06-12 .. original section: Library .. section: Security

Update expat to 2.1.1, fixes :cve:2015-1283.

.. bpo: 0 .. date: 9635 .. nonce: E4ochz .. original section: Library .. section: Security

Fix TLS stripping vulnerability in smtplib, :cve:2016-0772. Reported by Team Oststrom.

.. bpo: 26839 .. date: 9629 .. nonce: yVvy7R .. original section: Library .. section: Security

On Linux, :func:os.urandom now calls getrandom() with GRND_NONBLOCK to fall back on reading /dev/urandom if the urandom entropy pool is not initialized yet. Patch written by Colm Buckley.

.. bpo: 26657 .. date: 9597 .. nonce: C_-XFg .. original section: Library .. section: Security

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.

.. bpo: 26313 .. date: 9581 .. nonce: LjZAjy .. original section: Library .. section: Security

ssl.py _load_windows_store_certs fails if windows cert store is empty. Patch by Baji.

.. bpo: 25939 .. date: 9561 .. nonce: X49Fqd .. original section: Library .. section: Security

On Windows open the cert store readonly in ssl.enum_certificates.

.. bpo: 27066 .. date: 9673 .. nonce: SNExZi .. section: Core and Builtins

Fixed SystemError if a custom opener (for open()) returns a negative number without setting an exception.

.. bpo: 20041 .. date: 9672 .. nonce: TypyGp .. section: Core and Builtins

Fixed TypeError when frame.f_trace is set to None. Patch by Xavier de Gaye.

.. bpo: 26168 .. date: 9671 .. nonce: -nPBL6 .. section: Core and Builtins

Fixed possible refleaks in failing Py_BuildValue() with the "N" format unit.

.. bpo: 26991 .. date: 9670 .. nonce: yWGNhz .. section: Core and Builtins

Fix possible refleak when creating a function with annotations.

.. bpo: 27039 .. date: 9669 .. nonce: Zj7tV7 .. section: Core and Builtins

Fixed bytearray.remove() for values greater than 127. Patch by Joe Jevnik.

.. bpo: 23640 .. date: 9668 .. nonce: kvNC4c .. section: Core and Builtins

int.from_bytes() no longer bypasses constructors for subclasses.

.. bpo: 26811 .. date: 9667 .. nonce: oNzUWt .. section: Core and Builtins

gc.get_objects() no longer contains a broken tuple with NULL pointer.

.. bpo: 20120 .. date: 9666 .. nonce: c-FZZc .. section: Core and Builtins

Use RawConfigParser for .pypirc parsing, removing support for interpolation unintentionally added with move to Python 3. Behavior no longer does any interpolation in .pypirc files, matching behavior in Python 2.7 and Setuptools 19.0.

.. bpo: 26659 .. date: 9665 .. nonce: 5PRa83 .. section: Core and Builtins

Make the builtin slice type support cycle collection.

.. bpo: 26718 .. date: 9664 .. nonce: K5PQ8j .. section: Core and Builtins

super.init no longer leaks memory if called multiple times. NOTE: A direct call of super.init is not endorsed!

.. bpo: 25339 .. date: 9663 .. nonce: ZcaC2E .. section: Core and Builtins

PYTHONIOENCODING now has priority over locale in setting the error handler for stdin and stdout.

.. bpo: 26494 .. date: 9662 .. nonce: G6eXIi .. section: Core and Builtins

Fixed crash on iterating exhausting iterators. Affected classes are generic sequence iterators, iterators of str, bytes, bytearray, list, tuple, set, frozenset, dict, OrderedDict, corresponding views and os.scandir() iterator.

.. bpo: 26581 .. date: 9661 .. nonce: yNA7nm .. section: Core and Builtins

If coding cookie is specified multiple times on a line in Python source code file, only the first one is taken to account.

.. bpo: 26464 .. date: 9660 .. nonce: 7BreGz .. section: Core and Builtins

Fix str.translate() when string is ASCII and first replacements removes character, but next replacement uses a non-ASCII character or a string longer than 1 character. Regression introduced in Python 3.5.0.

.. bpo: 22836 .. date: 9659 .. nonce: cimt1y .. section: Core and Builtins

Ensure exception reports from PyErr_Display() and PyErr_WriteUnraisable() are sensible even when formatting them produces secondary errors. This affects the reports produced by sys.excepthook() and when del() raises an exception.

.. bpo: 26302 .. date: 9658 .. nonce: UD9XQt .. section: Core and Builtins

Correct behavior to reject comma as a legal character for cookie names.

.. bpo: 4806 .. date: 9657 .. nonce: i9m3hj .. section: Core and Builtins

Avoid masking the original TypeError exception when using star (*) unpacking in function calls. Based on patch by Hagen Fürstenau and Daniel Urban.

.. bpo: 27138 .. date: 9656 .. nonce: ifYEro .. section: Core and Builtins

Fix the doc comment for FileFinder.find_spec().

.. bpo: 26154 .. date: 9655 .. nonce: MtnRAH .. section: Core and Builtins

Add a new private _PyThreadState_UncheckedGet() function to get the current Python thread state, but don't issue a fatal error if it is NULL. This new function must be used instead of accessing directly the _PyThreadState_Current variable. The variable is no more exposed since Python 3.5.1 to hide the exact implementation of atomic C types, to avoid compiler issues.

.. bpo: 26194 .. date: 9654 .. nonce: j9zand .. section: Core and Builtins

Deque.insert() gave odd results for bounded deques that had reached their maximum size. Now an IndexError will be raised when attempting to insert into a full deque.

.. bpo: 25843 .. date: 9653 .. nonce: t2kGug .. section: Core and Builtins

When compiling code, don't merge constants if they are equal but have a different types. For example, f1, f2 = lambda: 1, lambda: 1.0 is now correctly compiled to two different functions: f1() returns 1 (int) and f2() returns 1.0 (int), even if 1 and 1.0 are equal.

.. bpo: 22995 .. date: 9652 .. nonce: KYNKvs .. section: Core and Builtins

[UPDATE] Comment out the one of the pickleability tests in _PyObject_GetState() due to regressions observed in Cython-based projects.

.. bpo: 25961 .. date: 9651 .. nonce: Hdjjw0 .. section: Core and Builtins

Disallowed null characters in the type name.

.. bpo: 25973 .. date: 9650 .. nonce: Ud__ZP .. section: Core and Builtins

Fix segfault when an invalid nonlocal statement binds a name starting with two underscores.

.. bpo: 22995 .. date: 9649 .. nonce: Wq0E86 .. section: Core and Builtins

Instances of extension types with a state that aren't subclasses of list or dict and haven't implemented any pickle-related methods (reduce, reduce_ex, getnewargs, getnewargs_ex, or getstate), can no longer be pickled. Including memoryview.

.. bpo: 20440 .. date: 9648 .. nonce: GCwOfH .. section: Core and Builtins

Massive replacing unsafe attribute setting code with special macro Py_SETREF.

.. bpo: 25766 .. date: 9647 .. nonce: jn93Yu .. section: Core and Builtins

Special method bytes() now works in str subclasses.

.. bpo: 25421 .. date: 9646 .. nonce: c47YEL .. section: Core and Builtins

sizeof methods of builtin types now use dynamic basic size. This allows sys.getsize() to work correctly with their subclasses with slots defined.

.. bpo: 25709 .. date: 9645 .. nonce: WwGm2k .. section: Core and Builtins

Fixed problem with in-place string concatenation and utf-8 cache.

.. bpo: 27147 .. date: 9644 .. nonce: tCCgmH .. section: Core and Builtins

Mention :pep:420 in the importlib docs.

.. bpo: 24097 .. date: 9643 .. nonce: Vt4E-i .. section: Core and Builtins

Fixed crash in object.reduce() if slot name is freed inside getattr.

.. bpo: 24731 .. date: 9642 .. nonce: h9-hnz .. section: Core and Builtins

Fixed crash on converting objects with special methods bytes, trunc, and float returning instances of subclasses of bytes, int, and float to subclasses of bytes, int, and float correspondingly.

.. bpo: 26478 .. date: 9641 .. nonce: n0dB8e .. section: Core and Builtins

Fix semantic bugs when using binary operators with dictionary views and tuples.

.. bpo: 26171 .. date: 9640 .. nonce: 8SaQEa .. section: Core and Builtins

Fix possible integer overflow and heap corruption in zipimporter.get_data().

.. bpo: 25660 .. date: 9639 .. nonce: 93DzBo .. section: Core and Builtins

Fix TAB key behaviour in REPL with readline.

.. bpo: 25887 .. date: 9638 .. nonce: PtVIX7 .. section: Core and Builtins

Raise a RuntimeError when a coroutine object is awaited more than once.

.. bpo: 27243 .. date: 9637 .. nonce: U36M4E .. section: Core and Builtins

Update the aiter protocol: instead of returning an awaitable that resolves to an asynchronous iterator, the asynchronous iterator should be returned directly. Doing the former will trigger a PendingDeprecationWarning.

.. bpo: 21386 .. date: 9634 .. nonce: DjV72U .. section: Library

Implement missing IPv4Address.is_global property. It was documented since 07a5610bae9d. Initial patch by Roger Luethi.

.. bpo: 20900 .. date: 9633 .. nonce: H5YQPR .. section: Library

distutils register command now decodes HTTP responses correctly. Initial patch by ingrid.

.. bpo: 0 .. date: 9632 .. nonce: iYIeng .. section: Library

A new version of typing.py provides several new classes and features: @overload outside stubs, Reversible, DefaultDict, Text, ContextManager, Type[], NewType(), TYPE_CHECKING, and numerous bug fixes (note that some of the new features are not yet implemented in mypy or other static analyzers). Also classes for :pep:492 (Awaitable, AsyncIterable, AsyncIterator) have been added (in fact they made it into 3.5.1 but were never mentioned).

.. bpo: 25738 .. date: 9631 .. nonce: mED9w4 .. section: Library

Stop http.server.BaseHTTPRequestHandler.send_error() from sending a message body for 205 Reset Content. Also, don't send Content header fields in responses that don't have a body. Patch by Susumu Koshiba.

.. bpo: 21313 .. date: 9630 .. nonce: W30MBr .. section: Library

Fix the "platform" module to tolerate when sys.version contains truncated build information.

.. bpo: 27164 .. date: 9628 .. nonce: 6wmjx2 .. section: Library

In the zlib module, allow decompressing raw Deflate streams with a predefined zdict. Based on patch by Xiang Zhang.

.. bpo: 24291 .. date: 9627 .. nonce: Ac6HvL .. section: Library

Fix wsgiref.simple_server.WSGIRequestHandler to completely write data to the client. Previously it could do partial writes and truncate data. Also, wsgiref.handler.ServerHandler can now handle stdout doing partial writes, but this is deprecated.

.. bpo: 26809 .. date: 9626 .. nonce: ya7JMb .. section: Library

Add __all__ to :mod:string. Patch by Emanuel Barry.

.. bpo: 26373 .. date: 9625 .. nonce: P6qz6o .. section: Library

subprocess.Popen.communicate now correctly ignores BrokenPipeError when the child process dies before .communicate() is called in more/all circumstances.

.. bpo: 21776 .. date: 9624 .. nonce: 04eQfa .. section: Library

distutils.upload now correctly handles HTTPError. Initial patch by Claudiu Popa.

.. bpo: 27114 .. date: 9623 .. nonce: bGCuAM .. section: Library

Fix SSLContext._load_windows_store_certs fails with PermissionError

.. bpo: 18383 .. date: 9622 .. nonce: jr-b0l .. section: Library

Avoid creating duplicate filters when using filterwarnings and simplefilter. Based on patch by Alex Shkop.

.. bpo: 27057 .. date: 9621 .. nonce: YzTA_Q .. section: Library

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.

.. bpo: 27014 .. date: 9620 .. nonce: ui7Khn .. section: Library

Fix infinite recursion using typing.py. Thanks to Kalle Tuure!

.. bpo: 14132 .. date: 9619 .. nonce: 5wR9MN .. section: Library

Fix urllib.request redirect handling when the target only has a query string. Original fix by Ján Janech.

.. bpo: 17214 .. date: 9618 .. nonce: lUbZOV .. section: Library

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.

.. bpo: 26892 .. date: 9617 .. nonce: XIXb0h .. section: Library

Honor debuglevel flag in urllib.request.HTTPHandler. Patch contributed by Chi Hsuan Yen.

.. bpo: 22274 .. date: 9616 .. nonce: 0RHDMN .. section: Library

In the subprocess module, allow stderr to be redirected to stdout even when stdout is not redirected. Patch by Akira Li.

.. bpo: 26807 .. date: 9615 .. nonce: LXSPP6 .. section: Library

mock_open 'files' no longer error on readline at end of file. Patch from Yolanda Robla.

.. bpo: 25745 .. date: 9614 .. nonce: -n8acU .. section: Library

Fixed leaking a userptr in curses panel destructor.

.. bpo: 26977 .. date: 9613 .. nonce: 5G4HtL .. section: Library

Removed unnecessary, and ignored, call to sum of squares helper in statistics.pvariance.

.. bpo: 26881 .. date: 9612 .. nonce: mdiq_L .. section: Library

The modulefinder module now supports extended opcode arguments.

.. bpo: 23815 .. date: 9611 .. nonce: _krNe8 .. section: Library

Fixed crashes related to directly created instances of types in _tkinter and curses.panel modules.

.. bpo: 17765 .. date: 9610 .. nonce: hiSVS1 .. section: Library

weakref.ref() no longer silently ignores keyword arguments. Patch by Georg Brandl.

.. bpo: 26873 .. date: 9609 .. nonce: cYXRcH .. section: Library

xmlrpc now raises ResponseError on unsupported type tags instead of silently return incorrect result.

.. bpo: 26711 .. date: 9608 .. nonce: Eu85Qw .. section: Library

Fixed the comparison of plistlib.Data with other types.

.. bpo: 24114 .. date: 9607 .. nonce: RMRMtM .. section: Library

Fix an uninitialized variable in ctypes.util. 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.

.. bpo: 26864 .. date: 9606 .. nonce: 1KgGds .. section: Library

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.

.. bpo: 26634 .. date: 9605 .. nonce: FZvsSb .. section: Library

recursive_repr() now sets qualname of wrapper. Patch by Xiang Zhang.

.. bpo: 26804 .. date: 9604 .. nonce: 9Orp-G .. section: Library

urllib.request will prefer lower_case proxy environment variables over UPPER_CASE or Mixed_Case ones. Patch contributed by Hans-Peter Jansen.

.. bpo: 26837 .. date: 9603 .. nonce: 2FXGsD .. section: Library

assertSequenceEqual() now correctly outputs non-stringified differing items (like bytes in the -b mode). This affects assertListEqual() and assertTupleEqual().

.. bpo: 26041 .. date: 9602 .. nonce: bVem-p .. section: Library

Remove "will be removed in Python 3.7" from deprecation messages of platform.dist() and platform.linux_distribution(). Patch by Kumaripaba Miyurusara Athukorala.

.. bpo: 26822 .. date: 9601 .. nonce: rYSL4W .. section: Library

itemgetter, attrgetter and methodcaller objects no longer silently ignore keyword arguments.

.. bpo: 26733 .. date: 9600 .. nonce: YxaJmL .. section: Library

Disassembling a class now disassembles class and static methods. Patch by Xiang Zhang.

.. bpo: 26801 .. date: 9599 .. nonce: TQGY-7 .. section: Library

Fix error handling in :func:shutil.get_terminal_size, catch :exc:AttributeError instead of :exc:NameError. Patch written by Emanuel Barry.

.. bpo: 24838 .. date: 9598 .. nonce: 3Pfx8T .. section: Library

tarfile's ustar and gnu formats now correctly calculate name and link field limits for multibyte character encodings like utf-8.

.. bpo: 26717 .. date: 9596 .. nonce: jngTdu .. section: Library

Stop encoding Latin-1-ized WSGI paths with UTF-8. Patch by Anthony Sottile.

.. bpo: 26735 .. date: 9595 .. nonce: riSl3b .. section: Library

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.

.. bpo: 16329 .. date: 9594 .. nonce: nuXD8W .. section: Library

Add .webm to mimetypes.types_map. Patch by Giampaolo Rodola'.

.. bpo: 13952 .. date: 9593 .. nonce: SOoTVE .. section: Library

Add .csv to mimetypes.types_map. Patch by Geoff Wilson.

.. bpo: 26709 .. date: 9592 .. nonce: luOPbP .. section: Library

Fixed Y2038 problem in loading binary PLists.

.. bpo: 23735 .. date: 9591 .. nonce: Y5oQ9r .. section: Library

Handle terminal resizing with Readline 6.3+ by installing our own SIGWINCH handler. Patch by Eric Price.

.. bpo: 26586 .. date: 9590 .. nonce: V5pZNa .. section: Library

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.

.. bpo: 22854 .. date: 9589 .. nonce: K3rMEH .. section: Library

Change BufferedReader.writable() and BufferedWriter.readable() to always return False.

.. bpo: 25195 .. date: 9588 .. nonce: EOc4Po .. section: Library

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.

.. bpo: 26644 .. date: 9587 .. nonce: 7tt1tk .. section: Library

Raise ValueError rather than SystemError when a negative length is passed to SSLSocket.recv() or read().

.. bpo: 23804 .. date: 9586 .. nonce: PP63Ff .. section: Library

Fix SSL recv(0) and read(0) methods to return zero bytes instead of up to 1024.

.. bpo: 26616 .. date: 9585 .. nonce: v3QwdD .. section: Library

Fixed a bug in datetime.astimezone() method.

.. bpo: 21925 .. date: 9584 .. nonce: _fr69L .. section: Library

:func:warnings.formatwarning now catches exceptions on linecache.getline(...) to be able to log :exc:ResourceWarning emitted late during the Python shutdown process.

.. bpo: 24266 .. date: 9583 .. nonce: YZgVyM .. section: Library

Ctrl+C during Readline history search now cancels the search mode when compiled with Readline 7.

.. bpo: 26560 .. date: 9582 .. nonce: A4WXNz .. section: Library

Avoid potential ValueError in BaseHandler.start_response. Initial patch by Peter Inglesby.

.. bpo: 26569 .. date: 9580 .. nonce: EX8vF1 .. section: Library

Fix :func:pyclbr.readmodule and :func:pyclbr.readmodule_ex to support importing packages.

.. bpo: 26499 .. date: 9579 .. nonce: NP08PI .. section: Library

Account for remaining Content-Length in HTTPResponse.readline() and read1(). Based on patch by Silent Ghost. Also document that HTTPResponse now supports these methods.

.. bpo: 25320 .. date: 9578 .. nonce: V96LIy .. section: Library

Handle sockets in directories unittest discovery is scanning. Patch from Victor van den Elzen.

.. bpo: 16181 .. date: 9577 .. nonce: P7lLvo .. section: Library

cookiejar.http2time() now returns None if year is higher than datetime.MAXYEAR.

.. bpo: 26513 .. date: 9576 .. nonce: HoPepy .. section: Library

Fixes platform module detection of Windows Server

.. bpo: 23718 .. date: 9575 .. nonce: AMPC0o .. section: Library

Fixed parsing time in week 0 before Jan 1. Original patch by Tamás Bence Gedai.

.. bpo: 20589 .. date: 9574 .. nonce: NsQ_I1 .. section: Library

Invoking Path.owner() and Path.group() on Windows now raise NotImplementedError instead of ImportError.

.. bpo: 26177 .. date: 9573 .. nonce: HlSWer .. section: Library

Fixed the keys() method for Canvas and Scrollbar widgets.

.. bpo: 15068 .. date: 9572 .. nonce: bcHtiw .. section: Library

Got rid of excessive buffering in the fileinput module. The bufsize parameter is no longer used.

.. bpo: 2202 .. date: 9571 .. nonce: dk9sd0 .. section: Library

Fix UnboundLocalError in AbstractDigestAuthHandler.get_algorithm_impls. Initial patch by Mathieu Dupuy.

.. bpo: 25718 .. date: 9570 .. nonce: 4EjZyv .. section: Library

Fixed pickling and copying the accumulate() iterator with total is None.

.. bpo: 26475 .. date: 9569 .. nonce: JXVccY .. section: Library

Fixed debugging output for regular expressions with the (?x) flag.

.. bpo: 26457 .. date: 9568 .. nonce: Xe6Clh .. section: Library

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.

.. bpo: 26385 .. date: 9567 .. nonce: 50bDXm .. section: Library

Remove the file if the internal open() call in NamedTemporaryFile() fails. Patch by Silent Ghost.

.. bpo: 26402 .. date: 9566 .. nonce: k7DVuU .. section: Library

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.

.. bpo: 25913 .. date: 9565 .. nonce: 5flb95 .. section: Library

Leading <~ is optional now in base64.a85decode() with adobe=True. Patch by Swati Jaiswal.

.. bpo: 26186 .. date: 9564 .. nonce: R9rfiL .. section: Library

Remove an invalid type check in importlib.util.LazyLoader.

.. bpo: 26367 .. date: 9563 .. nonce: ckpNeU .. section: Library

importlib.import() raises SystemError like builtins.import() when level is specified but without an accompanying package specified.

.. bpo: 26309 .. date: 9562 .. nonce: ubEeiz .. section: Library

In the "socketserver" module, shut down the request (closing the connected socket) when verify_request() returns false. Patch by Aviv Palivoda.

.. bpo: 25995 .. date: 9560 .. nonce: NfcimP .. section: Library

os.walk() no longer uses FDs proportional to the tree depth.

.. bpo: 26117 .. date: 9559 .. nonce: ne6p11 .. section: Library

The os.scandir() iterator now closes file descriptor not only when the iteration is finished, but when it was failed with error.

.. bpo: 25911 .. date: 9558 .. nonce: d4Zadh .. section: Library

Restored support of bytes paths in os.walk() on Windows.

.. bpo: 26045 .. date: 9557 .. nonce: WmzUrX .. section: Library

Add UTF-8 suggestion to error message when posting a non-Latin-1 string with http.client.

.. bpo: 12923 .. date: 9556 .. nonce: HPAu-B .. section: Library

Reset FancyURLopener's redirect counter even if there is an exception. Based on patches by Brian Brazil and Daniel Rocco.

.. bpo: 25945 .. date: 9555 .. nonce: guNgNM .. section: Library

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.

.. bpo: 26202 .. date: 9554 .. nonce: LPIXLg .. section: Library

copy.deepcopy() now correctly copies range() objects with non-atomic attributes.

.. bpo: 23076 .. date: 9553 .. nonce: 8rphoP .. section: Library

Path.glob() now raises a ValueError if it's called with an invalid pattern. Patch by Thomas Nyberg.

.. bpo: 19883 .. date: 9552 .. nonce: z9TsO6 .. section: Library

Fixed possible integer overflows in zipimport.

.. bpo: 26227 .. date: 9551 .. nonce: Fe6oiB .. section: Library

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.

.. bpo: 26147 .. date: 9550 .. nonce: i-Jc01 .. section: Library

xmlrpc now works with strings not encodable with used non-UTF-8 encoding.

.. bpo: 25935 .. date: 9549 .. nonce: cyni91 .. section: Library

Garbage collector now breaks reference loops with OrderedDict.

.. bpo: 16620 .. date: 9548 .. nonce: rxpn_Y .. section: Library

Fixed AttributeError in msilib.Directory.glob().

.. bpo: 26013 .. date: 9547 .. nonce: 93RKNz .. section: Library

Added compatibility with broken protocol 2 pickles created in old Python 3 versions (3.4.3 and lower).

.. bpo: 25850 .. date: 9546 .. nonce: jwFPxj .. section: Library

Use cross-compilation by default for 64-bit Windows.

.. bpo: 17633 .. date: 9545 .. nonce: 9mpbUO .. section: Library

Improve zipimport's support for namespace packages.

.. bpo: 24705 .. date: 9544 .. nonce: IZYwjR .. section: Library

Fix sysconfig._parse_makefile not expanding ${} vars appearing before $() vars.

.. bpo: 22138 .. date: 9543 .. nonce: nRNYkc .. section: Library

Fix mock.patch behavior when patching descriptors. Restore original values after patching. Patch contributed by Sean McCully.

.. bpo: 25672 .. date: 9542 .. nonce: fw9RJP .. section: Library

In the ssl module, enable the SSL_MODE_RELEASE_BUFFERS mode option if it is safe to do so.

.. bpo: 26012 .. date: 9541 .. nonce: IFSXNm .. section: Library

Don't traverse into symlinks for ** pattern in pathlib.Path.[r]glob().

.. bpo: 24120 .. date: 9540 .. nonce: Yiwa0h .. section: Library

Ignore PermissionError when traversing a tree with pathlib.Path.[r]glob(). Patch by Ulrich Petri.

.. bpo: 25447 .. date: 9539 .. nonce: -4m4xO .. section: Library

fileinput now uses sys.stdin as-is if it does not have a buffer attribute (restores backward compatibility).

.. bpo: 25447 .. date: 9538 .. nonce: AtHkWA .. section: Library

Copying the lru_cache() wrapper object now always works, independently from the type of the wrapped object (by returning the original object unchanged).

.. bpo: 24103 .. date: 9537 .. nonce: WufqrQ .. section: Library

Fixed possible use after free in ElementTree.XMLPullParser.

.. bpo: 25860 .. date: 9536 .. nonce: 0hActb .. section: Library

os.fwalk() no longer skips remaining directories when error occurs. Original patch by Samson Lee.

.. bpo: 25914 .. date: 9535 .. nonce: h0V61F .. section: Library

Fixed and simplified OrderedDict.sizeof.

.. bpo: 25902 .. date: 9534 .. nonce: 6t2FmH .. section: Library

Fixed various refcount issues in ElementTree iteration.

.. bpo: 25717 .. date: 9533 .. nonce: 0_xjaK .. section: Library

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.

.. bpo: 24903 .. date: 9532 .. nonce: 3LBdzb .. section: Library

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.

.. bpo: 25764 .. date: 9531 .. nonce: 7WWG07 .. section: Library

In the subprocess module, preserve any exception caused by fork() failure when preexec_fn is used.

.. bpo: 6478 .. date: 9530 .. nonce: -Bi9Hb .. section: Library

_strptime's regexp cache now is reset after changing timezone with time.tzset().

.. bpo: 14285 .. date: 9529 .. nonce: UyG8Hj .. section: Library

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.

.. bpo: 19771 .. date: 9528 .. nonce: 5NG-bg .. section: Library

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).

.. bpo: 25177 .. date: 9527 .. nonce: aNR4Ha .. section: Library

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.

.. bpo: 25718 .. date: 9526 .. nonce: D9mHZF .. section: Library

Fixed copying object with state with boolean value is false.

.. bpo: 10131 .. date: 9525 .. nonce: a7tptz .. section: Library

Fixed deep copying of minidom documents. Based on patch by Marian Ganisin.

.. bpo: 25725 .. date: 9524 .. nonce: XIKv3R .. section: Library

Fixed a reference leak in pickle.loads() when unpickling invalid data including tuple instructions.

.. bpo: 25663 .. date: 9523 .. nonce: Ofwfqa .. section: Library

In the Readline completer, avoid listing duplicate global names, and search the global namespace before searching builtins.

.. bpo: 25688 .. date: 9522 .. nonce: 8P1HOv .. section: Library

Fixed file leak in ElementTree.iterparse() raising an error.

.. bpo: 23914 .. date: 9521 .. nonce: 1sEz4J .. section: Library

Fixed SystemError raised by unpickler on broken pickle data.

.. bpo: 25691 .. date: 9520 .. nonce: ZEaapY .. section: Library

Fixed crash on deleting ElementTree.Element attributes.

.. bpo: 25624 .. date: 9519 .. nonce: ed-fM0 .. section: Library

ZipFile now always writes a ZIP_STORED header for directory entries. Patch by Dingyuan Wang.

.. bpo: 0 .. date: 9518 .. nonce: rtZyid .. section: Library

Skip getaddrinfo if host is already resolved. Patch by A. Jesse Jiryu Davis.

.. bpo: 26050 .. date: 9517 .. nonce: sclyvk .. section: Library

Add asyncio.StreamReader.readuntil() method. Patch by Марк Коренберг.

.. bpo: 25924 .. date: 9516 .. nonce: Uxr2vt .. section: Library

Avoid unnecessary serialization of getaddrinfo(3) calls on OS X versions 10.5 or higher. Original patch by A. Jesse Jiryu Davis.

.. bpo: 26406 .. date: 9515 .. nonce: ihvhF4 .. section: Library

Avoid unnecessary serialization of getaddrinfo(3) calls on current versions of OpenBSD and NetBSD. Patch by A. Jesse Jiryu Davis.

.. bpo: 26848 .. date: 9514 .. nonce: ChBOpQ .. section: Library

Fix asyncio/subprocess.communicate() to handle empty input. Patch by Jack O'Connor.

.. bpo: 27040 .. date: 9513 .. nonce: UASyCC .. section: Library

Add loop.get_exception_handler method

.. bpo: 27041 .. date: 9512 .. nonce: p3893U .. section: Library

asyncio: Add loop.create_future method

.. bpo: 27223 .. date: 9511 .. nonce: PRf4I6 .. section: Library

asyncio: Fix _read_ready and _write_ready to respect _conn_lost. Patch by Łukasz Langa.

.. bpo: 22970 .. date: 9510 .. nonce: WhdhyM .. section: Library

asyncio: Fix inconsistency cancelling Condition.wait. Patch by David Coles.

.. bpo: 5124 .. date: 9509 .. nonce: 4kwBvM .. section: IDLE

Paste with text selected now replaces the selection on X11. This matches how paste works on Windows, Mac, most modern Linux apps, and ttk widgets. Original patch by Serhiy Storchaka.

.. bpo: 24759 .. date: 9508 .. nonce: ccmySu .. section: IDLE

Make clear in idlelib.idle_test.init that the directory is a private implementation of test.test_idle and tool for maintainers.

.. bpo: 27196 .. date: 9507 .. nonce: 3yp8TF .. section: IDLE

Stop 'ThemeChanged' warnings when running IDLE tests. These persisted after other warnings were suppressed in #20567. Apply Serhiy Storchaka's update_idletasks solution to four test files. Record this additional advice in idle_test/README.txt

.. bpo: 20567 .. date: 9506 .. nonce: hhT32b .. section: IDLE

Revise idle_test/README.txt with advice about avoiding tk warning messages from tests. Apply advice to several IDLE tests.

.. bpo: 27117 .. date: 9505 .. nonce: YrLPf4 .. section: IDLE

Make colorizer htest and turtledemo work with dark themes. Move code for configuring text widget colors to a new function.

.. bpo: 26673 .. date: 9504 .. nonce: dh0_Ij .. section: IDLE

When tk reports font size as 0, change to size 10. Such fonts on Linux prevented the configuration dialog from opening.

.. bpo: 21939 .. date: 9503 .. nonce: pWz-OK .. section: IDLE

Add test for IDLE's percolator. Original patch by Saimadhav Heblikar.

.. bpo: 21676 .. date: 9502 .. nonce: hqy6Qh .. section: IDLE

Add test for IDLE's replace dialog. Original patch by Saimadhav Heblikar.

.. bpo: 18410 .. date: 9501 .. nonce: DLSPZo .. section: IDLE

Add test for IDLE's search dialog. Original patch by Westley Martínez.

.. bpo: 21703 .. date: 9500 .. nonce: BAZfDM .. section: IDLE

Add test for IDLE's undo delegator. Original patch by Saimadhav Heblikar .

.. bpo: 27044 .. date: 9499 .. nonce: 4y7tyM .. section: IDLE

Add ConfigDialog.remove_var_callbacks to stop memory leaks.

.. bpo: 23977 .. date: 9498 .. nonce: miDjj8 .. section: IDLE

Add more asserts to test_delegator.

.. bpo: 20640 .. date: 9497 .. nonce: PmI-G8 .. section: IDLE

Add tests for idlelib.configHelpSourceEdit. Patch by Saimadhav Heblikar.

.. bpo: 0 .. date: 9496 .. nonce: _YJfG7 .. section: IDLE

In the 'IDLE-console differences' section of the IDLE doc, clarify how running with IDLE affects sys.modules and the standard streams.

.. bpo: 25507 .. date: 9495 .. nonce: i8bNpk .. section: IDLE

fix incorrect change in IOBinding that prevented printing. Augment IOBinding htest to include all major IOBinding functions.

.. bpo: 25905 .. date: 9494 .. nonce: FzNb3B .. section: IDLE

Revert unwanted conversion of ' to ’ RIGHT SINGLE QUOTATION MARK in README.txt and open this and NEWS.txt with 'ascii'. Re-encode CREDITS.txt to utf-8 and open it with 'utf-8'.

.. bpo: 19489 .. date: 9493 .. nonce: jvzuO7 .. section: Documentation

Moved the search box from the sidebar to the header and footer of each page. Patch by Ammar Askar.

.. bpo: 24136 .. date: 9492 .. nonce: MUK0zK .. section: Documentation

Document the new :pep:448 unpacking syntax of 3.5.

.. bpo: 26736 .. date: 9491 .. nonce: U_Hyqo .. section: Documentation

Used HTTPS for external links in the documentation if possible.

.. bpo: 6953 .. date: 9490 .. nonce: Zk6rno .. section: Documentation

Rework the Readline module documentation to group related functions together, and add more details such as what underlying Readline functions and variables are accessed.

.. bpo: 23606 .. date: 9489 .. nonce: 9MhIso .. section: Documentation

Adds note to ctypes documentation regarding cdll.msvcrt.

.. bpo: 25500 .. date: 9488 .. nonce: AV47eF .. section: Documentation

Fix documentation to not claim that import is searched for in the global scope.

.. bpo: 26014 .. date: 9487 .. nonce: ptdZ_I .. section: Documentation

Update 3.x packaging documentation: * "See also" links to the new docs are now provided in the legacy pages * links to setuptools documentation have been updated

.. bpo: 21916 .. date: 9486 .. nonce: muwCyp .. section: Tests

Added tests for the turtle module. Patch by ingrid, Gregory Loyse and Jelle Zijlstra.

.. bpo: 26523 .. date: 9485 .. nonce: em_Uzt .. section: Tests

The multiprocessing thread pool (multiprocessing.dummy.Pool) was untested.

.. bpo: 26015 .. date: 9484 .. nonce: p3oWK3 .. section: Tests

Added new tests for pickling iterators of mutable sequences.

.. bpo: 26325 .. date: 9483 .. nonce: KOUc82 .. section: Tests

Added test.support.check_no_resource_warning() to check that no ResourceWarning is emitted.

.. bpo: 25940 .. date: 9482 .. nonce: PgiLVN .. section: Tests

Changed test_ssl to use self-signed.pythontest.net. This avoids relying on svn.python.org, which recently changed root certificate.

.. bpo: 25616 .. date: 9481 .. nonce: Qr-60p .. section: Tests

Tests for OrderedDict are extracted from test_collections into separate file test_ordered_dict.

.. bpo: 26583 .. date: 9480 .. nonce: Up7hTl .. section: Tests

Skip test_timestamp_overflow in test_import if bytecode files cannot be written.

.. bpo: 26884 .. date: 9479 .. nonce: O8-azL .. section: Build

Fix linking extension modules for cross builds. Patch by Xavier de Gaye.

.. bpo: 22359 .. date: 9478 .. nonce: HDjM4s .. section: Build

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.

.. bpo: 27229 .. date: 9477 .. nonce: C2NDch .. section: Build

Fix the cross-compiling pgen rule for in-tree builds. Patch by Xavier de Gaye.

.. bpo: 21668 .. date: 9476 .. nonce: 4sMAa1 .. section: Build

Link audioop, _datetime, _ctypes_test modules to libm, except on Mac OS X. Patch written by Xavier de Gaye.

.. bpo: 25702 .. date: 9475 .. nonce: ipxyJs .. section: Build

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.

.. bpo: 26624 .. date: 9474 .. nonce: 4fGrTl .. section: Build

Adds validation of ucrtbase[d].dll version with warning for old versions.

.. bpo: 17603 .. date: 9473 .. nonce: 102DA- .. section: Build

Avoid error about nonexistent fileblocks.o file by using a lower-level check for st_blocks in struct stat.

.. bpo: 26079 .. date: 9472 .. nonce: mEzW0O .. section: Build

Fixing the build output folder for tix-8.4.3.6. Patch by Bjoern Thiel.

.. bpo: 26465 .. date: 9471 .. nonce: _YR608 .. section: Build

Update Windows builds to use OpenSSL 1.0.2g.

.. bpo: 24421 .. date: 9470 .. nonce: 2zY7vM .. section: Build

Compile Modules/_math.c once, before building extensions. Previously it could fail to compile properly if the math and cmath builds were concurrent.

.. bpo: 25348 .. date: 9469 .. nonce: u6_BaQ .. section: Build

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 %*.

.. bpo: 25827 .. date: 9468 .. nonce: yg3DMM .. section: Build

Add support for building with ICC to configure, including a new --with-icc flag.

.. bpo: 25696 .. date: 9467 .. nonce: 2R_wIv .. section: Build

Fix installation of Python on UNIX with make -j9.

.. bpo: 26930 .. date: 9466 .. nonce: Sqz2O3 .. section: Build

Update OS X 10.5+ 32-bit-only installer to build and link with OpenSSL 1.0.2h.

.. bpo: 26268 .. date: 9465 .. nonce: I3-YLh .. section: Build

Update Windows builds to use OpenSSL 1.0.2f.

.. bpo: 25136 .. date: 9464 .. nonce: Vi-fmO .. section: Build

Support Apple Xcode 7's new textual SDK stub libraries.

.. bpo: 24324 .. date: 9463 .. nonce: m6DZMx .. section: Build

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.

.. bpo: 27053 .. date: 9462 .. nonce: 1IRbae .. section: Windows

Updates make_zip.py to correctly generate library ZIP file.

.. bpo: 26268 .. date: 9461 .. nonce: Z-lJEh .. section: Windows

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).

.. bpo: 26071 .. date: 9460 .. nonce: wLxL2l .. section: Windows

bdist_wininst created binaries fail to start and find 32bit Python

.. bpo: 26073 .. date: 9459 .. nonce: XwWgHp .. section: Windows

Update the list of magic numbers in launcher

.. bpo: 26065 .. date: 9458 .. nonce: SkVLJp .. section: Windows

Excludes venv from library when generating embeddable distro.

.. bpo: 17500 .. date: 9453 .. nonce: QTZbRV .. section: Windows

Remove unused and outdated icons. (See also: https://github.com/python/pythondotorg/issues/945)

.. bpo: 26799 .. date: 9457 .. nonce: gK2VXX .. section: Tools/Demos

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.

.. bpo: 26271 .. date: 9456 .. nonce: wg-rzr .. section: Tools/Demos

Fix the Freeze tool to properly use flags passed through configure. Patch by Daniel Shaulov.

.. bpo: 26489 .. date: 9455 .. nonce: rJ_U5S .. section: Tools/Demos

Add dictionary unpacking support to Tools/parser/unparse.py. Patch by Guo Ci Teo.

.. bpo: 26316 .. date: 9454 .. nonce: QJvVOi .. section: Tools/Demos

Fix variable name typo in Argument Clinic.