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Diffstat (limited to 'Misc/NEWS.d/3.6.8rc1.rst')
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diff --git a/Misc/NEWS.d/3.6.8rc1.rst b/Misc/NEWS.d/3.6.8rc1.rst new file mode 100644 index 0000000000..48d55a0d02 --- /dev/null +++ b/Misc/NEWS.d/3.6.8rc1.rst @@ -0,0 +1,879 @@ +.. bpo: 34812 +.. date: 2018-11-23-15-00-23 +.. nonce: 84VQnb +.. release date: 2018-12-11 +.. section: Security + +The :option:`-I` command line option (run Python in isolated mode) is now +also copied by the :mod:`multiprocessing` and :mod:`distutils` modules when +spawning child processes. Previously, only :option:`-E` and :option:`-s` +options (enabled by :option:`-I`) were copied. + +.. + +.. bpo: 34791 +.. date: 2018-09-24-18-49-25 +.. nonce: 78GmIG +.. section: Security + +The xml.sax and xml.dom.domreg no longer use environment variables to +override parser implementations when sys.flags.ignore_environment is set by +-E or -I arguments. + +.. + +.. bpo: 35444 +.. date: 2018-12-09-13-09-39 +.. nonce: 9kYn4V +.. section: Core and Builtins + +Fixed error handling in pickling methods when fail to look up builtin +"getattr". + +.. + +.. bpo: 35436 +.. date: 2018-12-07-02-38-01 +.. nonce: 0VW7p9 +.. section: Core and Builtins + +Fix various issues with memory allocation error handling. Patch by Zackery +Spytz. + +.. + +.. bpo: 35357 +.. date: 2018-12-03-21-20-24 +.. nonce: rhhoiC +.. section: Core and Builtins + +Internal attributes' names of unittest.mock._Call and +unittest.mock.MagicProxy (name, parent & from_kall) are now prefixed with +_mock_ in order to prevent clashes with widely used object attributes. Fixed +minor typo in test function name. + +.. + +.. bpo: 35372 +.. date: 2018-12-01-19-20-53 +.. nonce: RwVJjZ +.. section: Core and Builtins + +Fixed the code page decoder for input longer than 2 GiB containing +undecodable bytes. + +.. + +.. bpo: 33954 +.. date: 2018-11-20-22-33-38 +.. nonce: RzSngM +.. section: Core and Builtins + +For :meth:`str.format`, :meth:`float.__format__` and +:meth:`complex.__format__` methods for non-ASCII decimal point when using +the "n" formatter. + +.. + +.. bpo: 35214 +.. date: 2018-11-13-00-40-35 +.. nonce: OQBjph +.. section: Core and Builtins + +Fixed an out of bounds memory access when parsing a truncated unicode escape +sequence at the end of a string such as ``'\N'``. It would read one byte +beyond the end of the memory allocation. + +.. + +.. bpo: 35214 +.. date: 2018-11-12-11-38-06 +.. nonce: PCHKbX +.. section: Core and Builtins + +The interpreter and extension modules have had annotations added so that +they work properly under clang's Memory Sanitizer. A new configure flag +--with-memory-sanitizer has been added to make test builds of this nature +easier to perform. + +.. + +.. bpo: 35193 +.. date: 2018-11-08-23-00-04 +.. nonce: WK2PDg +.. section: Core and Builtins + +Fix an off by one error in the bytecode peephole optimizer where it could +read bytes beyond the end of bounds of an array when removing unreachable +code. This bug was present in every release of Python 3.6 until now. + +.. + +.. bpo: 29341 +.. date: 2018-10-25-20-53-32 +.. nonce: jH-AMF +.. section: Core and Builtins + +Clarify in the docstrings of :mod:`os` methods that path-like objects are +also accepted as input parameters. + +.. + +.. bpo: 35050 +.. date: 2018-10-23-15-03-53 +.. nonce: 49wraS +.. section: Core and Builtins + +:mod:`socket`: Fix off-by-one bug in length check for ``AF_ALG`` name and +type. + +.. + +.. bpo: 34974 +.. date: 2018-10-13-22-24-19 +.. nonce: 7LgTc2 +.. section: Core and Builtins + +:class:`bytes` and :class:`bytearray` constructors no longer convert +unexpected exceptions (e.g. :exc:`MemoryError` and :exc:`KeyboardInterrupt`) +to :exc:`TypeError`. + +.. + +.. bpo: 34973 +.. date: 2018-10-13-16-42-03 +.. nonce: B5M-3g +.. section: Core and Builtins + +Fixed crash in :func:`bytes` when the :class:`list` argument is mutated +while it is iterated. + +.. + +.. bpo: 34824 +.. date: 2018-09-27-11-10-02 +.. nonce: VLlCaU +.. section: Core and Builtins + +Fix a possible null pointer dereference in Modules/_ssl.c. Patch by Zackery +Spytz. + +.. + +.. bpo: 1621 +.. date: 2018-09-11-15-19-37 +.. nonce: 7o19yG +.. section: Core and Builtins + +Do not assume signed integer overflow behavior (C undefined behavior) when +performing set hash table resizing. + +.. + +.. bpo: 35052 +.. date: 2018-12-10-09-48-27 +.. nonce: xE1ymg +.. section: Library + +Fix xml.dom.minidom cloneNode() on a document with an entity: pass the +correct arguments to the user data handler of an entity. + +.. + +.. bpo: 35330 +.. date: 2018-12-06-00-43-13 +.. nonce: abB4BN +.. section: Library + +When a :class:`Mock` instance was used to wrap an object, if `side_effect` +is used in one of the mocks of it methods, don't call the original +implementation and return the result of using the side effect the same way +that it is done with return_value. + +.. + +.. bpo: 34172 +.. date: 2018-12-06-00-31-25 +.. nonce: l7CIYt +.. section: Library + +Revert the fix for this issue previously released in 3.6.7 pending further +investigation: Fix a reference issue inside multiprocessing.Pool that caused +the pool to remain alive if it was deleted without being closed or +terminated explicitly. + +.. + +.. bpo: 10496 +.. date: 2018-12-05-13-37-39 +.. nonce: VH-1Lp +.. section: Library + +:func:`posixpath.expanduser` now returns the input *path* unchanged if the +``HOME`` environment variable is not set and the current user has no home +directory (if the current user identifier doesn't exist in the password +database). This change fix the :mod:`site` module if the current user +doesn't exist in the password database (if the user has no home directory). + +.. + +.. bpo: 35310 +.. date: 2018-12-03-19-45-00 +.. nonce: 9k28gR +.. section: Library + +Fix a bug in :func:`select.select` where, in some cases, the file descriptor +sequences were returned unmodified after a signal interruption, even though +the file descriptors might not be ready yet. :func:`select.select` will now +always return empty lists if a timeout has occurred. Patch by Oran Avraham. + +.. + +.. bpo: 35380 +.. date: 2018-12-03-14-41-11 +.. nonce: SdRF9l +.. section: Library + +Enable TCP_NODELAY on Windows for proactor asyncio event loop. + +.. + +.. bpo: 35371 +.. date: 2018-12-01-13-44-12 +.. nonce: fTAwlX +.. section: Library + +Fixed possible crash in ``os.utime()`` on Windows when pass incorrect +arguments. + +.. + +.. bpo: 27903 +.. date: 2018-11-29-12-14-04 +.. nonce: ia8xgT +.. section: Library + +Fix ``ResourceWarning`` in :func:`platform.dist` on SuSE and Caldera +OpenLinux. Patch by Ville Skyttä. + +.. + +.. bpo: 28604 +.. date: 2018-11-20-13-34-01 +.. nonce: iiih5h +.. section: Library + +:func:`locale.localeconv` now sets temporarily the ``LC_CTYPE`` locale to +the ``LC_MONETARY`` locale if the two locales are different and monetary +strings are non-ASCII. This temporary change affects other threads. + +.. + +.. bpo: 35277 +.. date: 2018-11-19-07-22-04 +.. nonce: dsD-2E +.. section: Library + +Update ensurepip to install pip 18.1 and setuptools 40.6.2. + +.. + +.. bpo: 35226 +.. date: 2018-11-15-07-14-32 +.. nonce: wJPEEe +.. section: Library + +Recursively check arguments when testing for equality of +:class:`unittest.mock.call` objects and add note that tracking of parameters +used to create ancestors of mocks in ``mock_calls`` is not possible. + +.. + +.. bpo: 35189 +.. date: 2018-11-09-13-35-36 +.. nonce: gog-sl +.. section: Library + +Modify the following fnctl function to retry if interrupted by a signal +(EINTR): flock, lockf, fnctl + +.. + +.. bpo: 35062 +.. date: 2018-10-29-23-09-24 +.. nonce: dQS1ng +.. section: Library + +Fix incorrect parsing of :class:`_io.IncrementalNewlineDecoder`'s +*translate* argument. + +.. + +.. bpo: 35079 +.. date: 2018-10-26-22-53-16 +.. nonce: Tm5jvF +.. section: Library + +Improve difflib.SequenceManager.get_matching_blocks doc by adding +'non-overlapping' and changing '!=' to '<'. + +.. + +.. bpo: 35017 +.. date: 2018-10-26-00-11-21 +.. nonce: 6Ez4Cv +.. section: Library + +:meth:`socketserver.BaseServer.serve_forever` now exits immediately if it's +:meth:`~socketserver.BaseServer.shutdown` method is called while it is +polling for new events. + +.. + +.. bpo: 31047 +.. date: 2018-10-25-09-37-03 +.. nonce: kBbX8r +.. section: Library + +Fix ``ntpath.abspath`` regression where it didn't remove a trailing +separator on Windows. Patch by Tim Graham. + +.. + +.. bpo: 34794 +.. date: 2018-10-21-14-53-19 +.. nonce: yt3R4- +.. section: Library + +Fixed a leak in Tkinter when pass the Python wrapper around Tcl_Obj back to +Tcl/Tk. + +.. + +.. bpo: 35008 +.. date: 2018-10-17-11-54-04 +.. nonce: dotef_ +.. section: Library + +Fixed references leaks when call the ``__setstate__()`` method of +:class:`xml.etree.ElementTree.Element` in the C implementation for already +initialized element. + +.. + +.. bpo: 23420 +.. date: 2018-10-17-11-00-00 +.. nonce: Lq74Uu +.. section: Library + +Verify the value for the parameter '-s' of the cProfile CLI. Patch by Robert +Kuska + +.. + +.. bpo: 16965 +.. date: 2018-10-12-20-30-42 +.. nonce: xo5LAr +.. section: Library + +The :term:`2to3` :2to3fixer:`execfile` fixer now opens the file with mode +``'rb'``. Patch by Zackery Spytz. + +.. + +.. bpo: 34966 +.. date: 2018-10-12-18-57-52 +.. nonce: WZeBHO +.. section: Library + +:mod:`pydoc` now supports aliases not only to methods defined in the end +class, but also to inherited methods. The docstring is not duplicated for +aliases. + +.. + +.. bpo: 34941 +.. date: 2018-10-09-14-42-16 +.. nonce: 1Q5QKv +.. section: Library + +Methods ``find()``, ``findtext()`` and ``findall()`` of the ``Element`` +class in the :mod:`xml.etree.ElementTree` module are now able to find +children which are instances of ``Element`` subclasses. + +.. + +.. bpo: 34936 +.. date: 2018-10-08-21-05-11 +.. nonce: 3tRqdq +.. section: Library + +Fix ``TclError`` in ``tkinter.Spinbox.selection_element()``. Patch by +Juliette Monsel. + +.. + +.. bpo: 34900 +.. date: 2018-10-05-05-55-53 +.. nonce: 8RNiFu +.. section: Library + +Fixed :meth:`unittest.TestCase.debug` when used to call test methods with +subtests. Patch by Bruno Oliveira. + +.. + +.. bpo: 34866 +.. date: 2018-10-03-11-07-28 +.. nonce: ML6KpJ +.. section: Library + +Adding ``max_num_fields`` to ``cgi.FieldStorage`` to make DOS attacks harder +by limiting the number of ``MiniFieldStorage`` objects created by +``FieldStorage``. + +.. + +.. bpo: 34738 +.. date: 2018-09-19-16-51-04 +.. nonce: Pr3-iG +.. section: Library + +ZIP files created by :mod:`distutils` will now include entries for +directories. + +.. + +.. bpo: 31177 +.. date: 2018-09-14-10-38-18 +.. nonce: Sv91TN +.. section: Library + +Fix bug that prevented using :meth:`reset_mock +<unittest.mock.Mock.reset_mock>` on mock instances with deleted attributes + +.. + +.. bpo: 34604 +.. date: 2018-09-07-10-16-34 +.. nonce: xL7-kG +.. section: Library + +Fix possible mojibake in the error message of `pwd.getpwnam` and +`grp.getgrnam` using string representation because of invisible characters +or trailing whitespaces. Patch by William Grzybowski. + +.. + +.. bpo: 34574 +.. date: 2018-09-04-09-32-54 +.. nonce: X4RwYI +.. section: Library + +OrderedDict iterators are not exhausted during pickling anymore. Patch by +Sergey Fedoseev. + +.. + +.. bpo: 34052 +.. date: 2018-07-24-16-37-40 +.. nonce: VbbFAE +.. section: Library + +:meth:`sqlite3.Connection.create_aggregate`, +:meth:`sqlite3.Connection.create_function`, +:meth:`sqlite3.Connection.set_authorizer`, +:meth:`sqlite3.Connection.set_progress_handler` methods raises TypeError +when unhashable objects are passed as callable. These methods now don't pass +such objects to SQLite API. Previous behavior could lead to segfaults. Patch +by Sergey Fedoseev. + +.. + +.. bpo: 29877 +.. date: 2017-12-16-11-40-52 +.. nonce: SfWhmz +.. section: Library + +compileall: import ProcessPoolExecutor only when needed, preventing hangs on +low resource platforms + +.. + +.. bpo: 22005 +.. date: 2017-10-12-22-39-55 +.. nonce: lGP-sc +.. section: Library + +Implemented unpickling instances of :class:`~datetime.datetime`, +:class:`~datetime.date` and :class:`~datetime.time` pickled by Python 2. +``encoding='latin1'`` should be used for successful decoding. + +.. + +.. bpo: 35089 +.. date: 2018-10-28-16-51-31 +.. nonce: _stCpS +.. section: Documentation + +Remove mention of ``typing.io`` and ``typing.re``. Their types should be +imported from ``typing`` directly. + +.. + +.. bpo: 35038 +.. date: 2018-10-25-17-45-09 +.. nonce: 2eVOYS +.. section: Documentation + +Fix the documentation about an unexisting `f_restricted` attribute in the +frame object. Patch by Stéphane Wirtel + +.. + +.. bpo: 35035 +.. date: 2018-10-21-02-20-36 +.. nonce: 4zBObK +.. section: Documentation + +Rename documentation for :mod:`email.utils` to ``email.utils.rst``. + +.. + +.. bpo: 34967 +.. date: 2018-10-13-07-39-57 +.. nonce: E40tFP +.. section: Documentation + +Use app.add_object_type() instead of the deprecated Sphinx function +app.description_unit() + +.. + +.. bpo: 33594 +.. date: 2018-05-21-14-36-12 +.. nonce: -HRcyX +.. section: Documentation + +Document ``getargspec``, ``from_function`` and ``from_builtin`` as +deprecated in their respective docstring, and include version since +deprecation in DeprecationWarning message. + +.. + +.. bpo: 32613 +.. date: 2018-02-05-15-05-53 +.. nonce: TDjgM1 +.. section: Documentation + +Update the faq/windows.html to use the py command from PEP 397 instead of +python. + +.. + +.. bpo: 33725 +.. date: 2018-12-09-01-27-29 +.. nonce: TaGayj +.. section: Tests + +test_multiprocessing_fork may crash on recent versions of macOS. Until the +issue is resolved, skip the test on macOS. + +.. + +.. bpo: 35352 +.. date: 2018-11-30-17-18-56 +.. nonce: 8bD7GC +.. section: Tests + +Modify test_asyncio to use the certificate set from the test directory. + +.. + +.. bpo: 35317 +.. date: 2018-11-26-16-54-21 +.. nonce: jByGP2 +.. section: Tests + +Fix ``mktime()`` overflow error in ``test_email``: run +``test_localtime_daylight_true_dst_true()`` and +``test_localtime_daylight_false_dst_true()`` with a specific timezone. + +.. + +.. bpo: 21263 +.. date: 2018-11-04-20-17-09 +.. nonce: T3qo9r +.. section: Tests + +After several reports that test_gdb does not work properly on macOS and +since gdb is not shipped by default anymore, test_gdb is now skipped on +macOS when LLVM Clang has been used to compile Python. Patch by Lysandros +Nikolaou + +.. + +.. bpo: 34279 +.. date: 2018-10-27-13-41-55 +.. nonce: v0Xqxe +.. section: Tests + +regrtest issue a warning when no tests have been executed in a particular +test file. Also, a new final result state is issued if no test have been +executed across all test files. Patch by Pablo Galindo. + +.. + +.. bpo: 35351 +.. date: 2018-12-04-15-33-28 +.. nonce: ZhhBfT +.. section: Build + +When building Python with clang and LTO, LTO flags are no longer passed into +CFLAGS to build third-party C extensions through distutils. + +.. + +.. bpo: 35139 +.. date: 2018-11-01-15-01-23 +.. nonce: XZTttb +.. section: Build + +Fix a compiler error when statically linking `pyexpat` in `Modules/Setup`. + +.. + +.. bpo: 35011 +.. date: 2018-10-17-17-38-57 +.. nonce: GgoPIC +.. section: Build + +Restores the use of pyexpatns.h to isolate our embedded copy of the expat C +library so that its symbols do not conflict at link or dynamic loading time +with an embedding application or other extension modules with their own +version of libexpat. + +.. + +.. bpo: 28015 +.. date: 2018-10-16-12-22-36 +.. nonce: ylSgFh +.. section: Build + +Have --with-lto works correctly with clang. + +.. + +.. bpo: 33015 +.. date: 2018-08-24-09-48-25 +.. nonce: s21y74 +.. section: Build + +Fix an undefined behaviour in the pthread implementation of +:c:func:`PyThread_start_new_thread`: add a function wrapper to always return +``NULL``. + +.. + +.. bpo: 31625 +.. date: 2017-09-28-23-21-20 +.. nonce: Bb2NXr +.. section: Build + +Stop using ranlib on static libraries. Instead, we assume ar supports the +'s' flag. + +.. + +.. bpo: 31354 +.. date: 2017-09-08-11-48-11 +.. nonce: 4f-VJK +.. section: Build + +Allow --with-lto to be used on all builds, not just `make profile-opt`. + +.. + +.. bpo: 35401 +.. date: 2018-12-10-15-01-13 +.. nonce: 9L1onG +.. section: Windows + +Updates Windows build to OpenSSL 1.0.2q + +.. + +.. bpo: 32890 +.. date: 2018-03-08-20-02-38 +.. nonce: 3jzFzY +.. section: Windows + +Fix usage of GetLastError() instead of errno in os.execve() and +os.truncate(). + +.. + +.. bpo: 15663 +.. date: 2018-12-11-02-50-35 +.. nonce: 6tnyd2 +.. section: macOS + +The macOS 10.6+ installer now provides a private copy of Tcl/Tk 8.6, like +the 10.9+ installer does. + +.. + +.. bpo: 35402 +.. date: 2018-12-10-02-44-48 +.. nonce: xzn8qJ +.. section: macOS + +Update macOS installer to use Tcl/Tk 8.6.9.1. + +.. + +.. bpo: 35401 +.. date: 2018-12-10-02-37-11 +.. nonce: sFhD5z +.. section: macOS + +Update macOS installer to use OpenSSL 1.0.2q. + +.. + +.. bpo: 35025 +.. date: 2018-10-18-23-54-55 +.. nonce: X4LFJg +.. section: macOS + +Properly guard the use of the ``CLOCK_GETTIME`` et al. macros in +``timemodule`` on macOS. + +.. + +.. bpo: 24658 +.. date: 2018-10-17-14-36-08 +.. nonce: Naddgx +.. section: macOS + +On macOS, fix reading from and writing into a file with a size larger than 2 +GiB. + +.. + +.. bpo: 35213 +.. date: 2018-11-12-00-20-01 +.. nonce: cqNgzT +.. section: IDLE + +Where appropriate, use 'macOS' in idlelib. + +.. + +.. bpo: 34864 +.. date: 2018-11-11-17-13-50 +.. nonce: cw0PvO +.. section: IDLE + +On macOS, warn if the system preference "Prefer tabs when opening documents" +is set to "Always". + +.. + +.. bpo: 34864 +.. date: 2018-11-10-21-27-25 +.. nonce: Ci-G2q +.. section: IDLE + +Document two IDLE on MacOS issues. The System Preferences Dock "prefer tabs +always" setting disables some IDLE features. Menus are a bit different than +as described for Windows and Linux. + +.. + +.. bpo: 35202 +.. date: 2018-11-10-09-10-54 +.. nonce: TeJJrt +.. section: IDLE + +Remove unused imports from lib/idlelib + +.. + +.. bpo: 33000 +.. date: 2018-11-06-23-10-54 +.. nonce: pQasCt +.. section: IDLE + +Document that IDLE's shell has no line limit. A program that runs +indefinitely can overfill memory. + +.. + +.. bpo: 23220 +.. date: 2018-11-05-23-23-00 +.. nonce: H3SAWE +.. section: IDLE + +Explain how IDLE's Shell displays output. + +.. + +.. bpo: 35099 +.. date: 2018-11-05-20-43-08 +.. nonce: SVOZXC +.. section: IDLE + +Improve the doc about IDLE running user code. The section is renamed from +"IDLE -- console differences" is renamed "Running user code". It mostly +covers the implications of using custom sys.stdxxx objects. + +.. + +.. bpo: 35097 +.. date: 2018-10-28-20-17-14 +.. nonce: 07tm66 +.. section: IDLE + +Add IDLE doc subsection explaining editor windows. Topics include opening, +title and status bar, .py* extension, and running. + +.. + +.. bpo: 35093 +.. date: 2018-10-28-15-53-51 +.. nonce: cH-tli +.. section: IDLE + +Document the IDLE document viewer in the IDLE doc. Add a paragraph in "Help +and preferences", "Help sources" subsection. + +.. + +.. bpo: 35088 +.. date: 2018-10-28-00-54-32 +.. nonce: r1lJZd +.. section: IDLE + +Update idlelib.help.copy_string docstring. We now use git and backporting +instead of hg and forward merging. + +.. + +.. bpo: 35087 +.. date: 2018-10-28-00-08-42 +.. nonce: G7gx2- +.. section: IDLE + +Update idlelib help files for the current doc build. The main change is the +elimination of chapter-section numbers. + +.. + +.. bpo: 34989 +.. date: 2018-10-15-13-22-28 +.. nonce: hU4fra +.. section: Tools/Demos + +python-gdb.py now handles errors on computing the line number of a Python +frame. |